/* =====================================================
   PS-Solutions - Ingenieursdienstleistungen Patrick Schwab – Hauptstylesheet
   ===================================================== */

/* ── CSS Custom Properties ── */
:root {
    --c-primary:       #0D1B2A;
    --c-primary-700:   #1B3A5C;
    --c-primary-600:   #1e4a73;
    --c-secondary:     #2563EB;
    --c-secondary-h:   #1d4ed8;
    --c-accent:        #F59E0B;
    --c-accent-h:      #d97706;
    --c-heat:          #e85d3c;
    --c-heat-bg:       #fff4f1;
    --c-cold:          #3b82f6;
    --c-cold-bg:       #eff6ff;
    --c-air:           #2980b9;
    --c-air-bg:        #f0f7ff;
    --c-water:         #27ae60;
    --c-water-bg:      #f0fff6;
    --c-text:          #0f172a;
    --c-text-muted:    #64748b;
    --c-text-light:    #94a3b8;
    --c-bg:            #f8fafc;
    --c-bg-alt:        #f1f5f9;
    --c-white:         #ffffff;
    --c-border:        #e2e8f0;
    --c-border-dark:   #334155;

    --font-body:       'Inter', system-ui, sans-serif;
    --font-heading:    'Playfair Display', Georgia, serif;

    --shadow-sm:       0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
    --shadow-md:       0 4px 16px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
    --shadow-lg:       0 10px 40px rgba(0,0,0,.14);
    --shadow-xl:       0 20px 60px rgba(0,0,0,.18);

    --radius:          10px;
    --radius-lg:       16px;
    --radius-xl:       24px;
    --radius-full:     9999px;

    --trans:           all .3s cubic-bezier(.4,0,.2,1);
    --trans-fast:      all .15s cubic-bezier(.4,0,.2,1);

    --container:       1200px;
    --section-gap:     4rem;
}

/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
    font-family: var(--font-body);
    color: var(--c-text);
    background: var(--c-bg);
    line-height: 1.65;
    overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, textarea, select { font-family: inherit; font-size: inherit; }

/* ── Skip Link ── */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    padding: .5rem 1rem;
    background: var(--c-secondary);
    color: var(--c-white);
    border-radius: var(--radius);
    z-index: 9999;
    font-weight: 600;
    transition: top .2s;
}
.skip-link:focus { top: 1rem; }

/* ── Container ── */
.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.5rem;
}

/* ── Section Helpers ── */
.section { padding-block: var(--section-gap); }
.section--light { background: var(--c-bg-alt); }
.section--dark  { background: var(--c-primary); color: var(--c-white); }

.section-header { text-align: center; max-width: 680px; margin: 0 auto 3.5rem; }
.section-tag {
    display: inline-block;
    font-size: .78rem;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--c-secondary);
    background: rgba(37,99,235,.08);
    border: 1px solid rgba(37,99,235,.2);
    padding: .35em 1em;
    border-radius: var(--radius-full);
    margin-bottom: 1rem;
}
.section-tag--light { color: var(--c-accent); background: rgba(245,158,11,.12); border-color: rgba(245,158,11,.3); }
.section-title {
    font-family: var(--font-heading);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    line-height: 1.2;
    color: var(--c-text);
    margin-bottom: .75rem;
}
.section-title--light { color: var(--c-white); }
.section-sub { color: var(--c-text-muted); font-size: 1.05rem; line-height: 1.7; }

/* ═══════════════════════════════════════════════════════════
   SECTION VISUAL ENHANCEMENTS – Professionelle Übergänge
   ═══════════════════════════════════════════════════════════ */

/* 1) Subtiler Schatten-Divider zwischen gleichartigen Sections */
.section + .section {
    box-shadow: inset 0 1px 0 var(--c-border);
}

/* 2) Hell-/Dunkel-Übergänge: kein Standard-Border, Gradient-Balken stattdessen */
.section + .section--dark,
.section--dark + .section {
    box-shadow: none;
}

/* Gradient-Leuchtebalken am oberen Rand der dunklen Section */
.section + .section--dark {
    position: relative;
}
.section + .section--dark::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--c-secondary) 25%,
        var(--c-accent)    75%,
        transparent 100%
    );
}

/* Gradient-Leuchtebalken oben an der Section nach der dunklen */
.section--dark + .section {
    position: relative;
}
.section--dark + .section::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 4px;
    background: linear-gradient(
        90deg,
        transparent 0%,
        var(--c-secondary) 25%,
        var(--c-accent)    75%,
        transparent 100%
    );
}

/* 3) Helle Sections: subtiler Gradient oben für mehr Tiefe */
.section--light {
    background:
        radial-gradient(ellipse 80% 40% at 50% 0%, rgba(37,99,235,0.04) 0%, transparent 65%),
        var(--c-bg-alt);
}

/* 4) Dunkle Section: blaue Glühkante oben */
.section--dark {
    background:
        radial-gradient(ellipse 70% 35% at 50% 0%, rgba(37,99,235,0.22) 0%, transparent 60%),
        var(--c-primary);
    color: var(--c-white);
}

/* 5) Dekorativer Akzentbalken unter Section-Titeln */
.section-header .section-title::after {
    content: '';
    display: block;
    width: 52px;
    height: 3px;
    margin: 0.75rem auto 0;
    background: linear-gradient(90deg, var(--c-secondary), var(--c-accent));
    border-radius: 9999px;
}
.section--dark .section-header .section-title::after {
    background: linear-gradient(90deg, var(--c-accent), #fbbf24);
}

/* 6) Section-Tag: sanfter Shadow für mehr Tiefe */
.section-tag {
    box-shadow: 0 2px 8px rgba(37, 99, 235, 0.1);
}

/* 7) Etwas mehr Luft unter dem Header (kompensiert den Akzentbalken) */
.section-header {
    margin-bottom: 4rem;
}


.btn {
    display: inline-flex;
    align-items: center;
    gap: .55rem;
    padding: .8rem 1.75rem;
    border-radius: var(--radius-full);
    font-size: .95rem;
    font-weight: 600;
    transition: var(--trans);
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
}
.btn-primary {
    background: var(--c-secondary);
    color: var(--c-white);
    box-shadow: 0 4px 16px rgba(37,99,235,.35);
}
.btn-primary:hover, .btn-primary:focus-visible {
    background: var(--c-secondary-h);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37,99,235,.45);
}
.btn-ghost {
    background: rgba(255,255,255,.1);
    color: var(--c-white);
    border: 1.5px solid rgba(255,255,255,.35);
    backdrop-filter: blur(6px);
}
.btn-ghost:hover, .btn-ghost:focus-visible {
    background: rgba(255,255,255,.18);
    border-color: rgba(255,255,255,.6);
    transform: translateY(-2px);
}
.btn-full { width: 100%; justify-content: center; }

/* ── Scroll Animation ── */
[data-animate] {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity .6s ease, transform .6s ease;
}
[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* =====================================================
   NAVBAR
   ===================================================== */
.navbar {
    position: fixed;
    inset-block-start: 0;
    inset-inline: 0;
    z-index: 1000;
    padding-block: 1.1rem;
    transition: background .35s, box-shadow .35s, padding .35s;
}
.navbar.scrolled {
    background: rgba(13,27,42,.96);
    backdrop-filter: blur(16px);
    box-shadow: 0 2px 20px rgba(0,0,0,.35);
    padding-block: .75rem;
}
.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: .65rem;
    color: var(--c-white);
    text-decoration: none;
}
.logo-img {
    height: 34px;
    width: auto;
    max-width: 160px;
    object-fit: contain;
    flex-shrink: 0;
    filter: brightness(0) invert(1);
    opacity: .92;
    transition: opacity .3s;
}
.navbar-brand:hover .logo-img,
.navbar-brand:focus-visible .logo-img { opacity: .72; }
.logo-stack {
    display: flex;
    flex-direction: column;
    gap: 0;
}
.logo-text { font-size: 1.2rem; font-weight: 800; letter-spacing: -.02em; color: var(--c-white); line-height: 1.15; }
.logo-accent { color: var(--c-accent); }
.logo-tagline {
    font-size: .50rem;
    font-weight: 600;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: rgba(255,255,255,.45);
    white-space: nowrap;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: .25rem;
}
.nav-link {
    color: rgba(255,255,255,.82);
    font-size: .92rem;
    font-weight: 500;
    padding: .5rem .9rem;
    border-radius: var(--radius);
    transition: var(--trans-fast);
    text-decoration: none;
}
.nav-link:hover, .nav-link:focus-visible { color: var(--c-white); background: rgba(255,255,255,.1); }
.nav-cta {
    background: var(--c-secondary);
    color: var(--c-white) !important;
    padding: .5rem 1.2rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    margin-left: .5rem;
    box-shadow: 0 3px 12px rgba(37,99,235,.4);
}
.nav-cta:hover, .nav-cta:focus-visible { background: var(--c-secondary-h); transform: translateY(-1px); }

/* ── Sprachumschalter ── */
.lang-switch {
    display: flex;
    align-items: center;
    gap: .25rem;
    margin-left: .75rem;
}
.lang-btn {
    font-size: .72rem;
    font-weight: 700;
    letter-spacing: .04em;
    color: rgba(255,255,255,.5);
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    padding: .2rem .45rem;
    border-radius: 4px;
    transition: color .2s, background .2s, border-color .2s;
    line-height: 1;
}
.lang-btn--active,
.lang-btn:hover,
.lang-btn:focus-visible {
    color: var(--c-white);
    background: rgba(255,255,255,.12);
    border-color: rgba(255,255,255,.2);
}
.lang-sep {
    color: rgba(255,255,255,.2);
    font-size: .65rem;
    user-select: none;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: .4rem;
    border-radius: var(--radius);
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--c-white);
    border-radius: 2px;
    transition: var(--trans);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================
   HERO
   ===================================================== */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--c-primary);
    overflow: hidden;
    color: var(--c-white);
}
.hero-bg {
    position: absolute;
    inset: 0;
    pointer-events: none;
}
.hero-grid-overlay {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
    background-size: 60px 60px;
}
.hero-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: .55;
    animation: floatGlow 8s ease-in-out infinite alternate;
}
.hero-glow--1 {
    width: 600px; height: 600px;
    background: radial-gradient(circle, #2563EB 0%, transparent 70%);
    top: -15%; left: -10%;
    animation-delay: 0s;
}
.hero-glow--2 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, #F59E0B 0%, transparent 70%);
    top: 40%; right: -8%;
    animation-delay: -3s;
    opacity: .3;
}
.hero-glow--3 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, #e85d3c 0%, transparent 70%);
    bottom: 10%; left: 30%;
    animation-delay: -5s;
    opacity: .25;
}
@keyframes floatGlow {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(30px, -30px) scale(1.08); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    padding-top: 6rem;
    padding-bottom: 8rem;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: .8rem;
    font-weight: 600;
    letter-spacing: .1em;
    text-transform: uppercase;
    color: rgba(255,255,255,.75);
    border: 1px solid rgba(255,255,255,.18);
    background: rgba(255,255,255,.06);
    backdrop-filter: blur(6px);
    padding: .45em 1.2em;
    border-radius: var(--radius-full);
    margin-bottom: 2rem;
}
.badge-dot {
    width: 8px; height: 8px;
    background: var(--c-accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--c-accent);
    animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50%       { opacity: .6; transform: scale(.85); }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 6vw, 4rem);
    line-height: 1.2;
    font-weight: 800;
    color: var(--c-white);
    margin-bottom: 1.5rem;
    text-wrap: balance;
}
.hero-title-accent {
    background: linear-gradient(135deg, var(--c-accent) 0%, #fb923c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-sub {
    font-size: clamp(1rem, 2.2vw, 1.15rem);
    color: rgba(255,255,255,.72);
    max-width: 600px;
    margin: 0 auto 1.75rem;
    line-height: 1.75;
}
.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .7rem;
    justify-content: center;
    margin-top: 1.2rem;
    margin-bottom: 1.4rem;
    font-size: 1rem;
    font-family: var(--font-body, inherit);
    font-weight: 400;
}
.htag {
    display: inline-flex;
    align-items: center;
    gap: .45rem;
    padding: .45em 1.1em;
    border-radius: var(--radius-full);
    font-size: .88rem;
    font-weight: 600;
    border: 1.5px solid;
}
.htag--heat { color: #ffb347; border-color: rgba(232,93,60,.45); background: rgba(232,93,60,.15); }
.htag--cold { color: #93c5fd; border-color: rgba(59,130,246,.45); background: rgba(59,130,246,.15); }
.htag--air  { color: #93c5fd; border-color: rgba(41,128,185,.45); background: rgba(41,128,185,.15); }
.htag--water{ color: #6ee7b7; border-color: rgba(39,174,96,.45);  background: rgba(39,174,96,.15);  }
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    justify-content: center;
}

.hero-scroll-hint {
    position: absolute;
    bottom: 13rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .4rem;
    font-size: .72rem;
    color: rgba(255,255,255,.45);
    letter-spacing: .08em;
    text-transform: uppercase;
    animation: fadeInUp 1s 1.5s both;
}
.scroll-mouse {
    width: 22px; height: 36px;
    border: 2px solid rgba(255,255,255,.35);
    border-radius: 11px;
    display: flex;
    justify-content: center;
    padding-top: 6px;
}
.scroll-dot {
    width: 4px; height: 8px;
    background: rgba(255,255,255,.6);
    border-radius: 2px;
    animation: scrollBounce 1.8s ease-in-out infinite;
}
@keyframes scrollBounce {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50%       { transform: translateY(8px); opacity: .4; }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateX(-50%) translateY(16px); }
    to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* Stats Bar */
.hero-stats-bar {
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
    background: rgba(255,255,255,.04);
    backdrop-filter: blur(12px);
    border-top: 1px solid rgba(255,255,255,.1);
    padding-block: 1.5rem;
}
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    text-align: center;
}
.stat-val {
    font-size: clamp(1.8rem, 3.5vw, 2.5rem);
    font-weight: 800;
    color: var(--c-white);
    font-family: var(--font-heading);
    line-height: 1;
}
.stat-suf { font-size: 1.4rem; font-weight: 700; color: var(--c-accent); }
.stat-lbl { display: block; font-size: .8rem; color: rgba(255,255,255,.55); margin-top: .3rem; letter-spacing: .04em; }

/* =====================================================
   LEISTUNGEN
   ===================================================== */
/* Leistungen Accordion */
.leistungen-accordion {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 1100px;
    margin: 0 auto;
}

/* 2-Spalten-Grid für die 4 Gewerke */
.gewerke-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

@media (max-width: 700px) {
    .gewerke-grid {
        grid-template-columns: 1fr;
    }
}

.accordion-item {
    position: relative;
    background: var(--c-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--c-border);
    overflow: hidden;
    transition: var(--trans);
}

.accordion-item:hover {
    box-shadow: var(--shadow-lg);
}

/* Top border accent */
.accordion-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    transition: var(--trans);
}
.accordion-item--heat::before { background: linear-gradient(90deg, var(--c-heat), #f97316); }
.accordion-item--cold::before { background: linear-gradient(90deg, var(--c-cold), #60a5fa); }
.accordion-item--air::before  { background: linear-gradient(90deg, var(--c-air),  #38bdf8); }
.accordion-item--water::before{ background: linear-gradient(90deg, var(--c-water), #34d399); }
.accordion-item--hlsk::before { 
    background: linear-gradient(90deg, 
        var(--c-heat) 0%, 
        var(--c-cold) 33%, 
        var(--c-air) 66%, 
        var(--c-water) 100%
    );
    height: 5px;
}

/* HLSK Badge */
.accordion-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: linear-gradient(135deg, var(--c-secondary), #1e40af);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
    z-index: 2;
}

.accordion-badge i {
    font-size: 0.65rem;
}

/* Accordion Header */
.accordion-header {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem 1.75rem;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: var(--trans);
}

.accordion-header:hover {
    background: rgba(0, 0, 0, 0.02);
}

.accordion-item.active .accordion-header {
    background: rgba(37, 99, 235, 0.03);
}

.accordion-icon {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: var(--trans);
    outline: 2.5px solid transparent;
    outline-offset: 3px;
}

/* Farbiger Glow & Ring pro Gewerk */
.accordion-item--water  .accordion-icon { box-shadow: 0 4px 14px rgba(16,185,129,.28); }
.accordion-item--heat   .accordion-icon { box-shadow: 0 4px 14px rgba(234,88,12,.28); }
.accordion-item--air    .accordion-icon { box-shadow: 0 4px 14px rgba(14,165,233,.28); }
.accordion-item--cold   .accordion-icon { box-shadow: 0 4px 14px rgba(59,130,246,.28); }
.accordion-item--hlsk   .accordion-icon { box-shadow: 0 4px 14px rgba(37,99,235,.28); }

/* Hover – stärkerer Glow */
.accordion-item--water:hover  .accordion-icon { box-shadow: 0 6px 22px rgba(16,185,129,.45); outline-color: rgba(16,185,129,.4); }
.accordion-item--heat:hover   .accordion-icon { box-shadow: 0 6px 22px rgba(234,88,12,.45);  outline-color: rgba(234,88,12,.4);  }
.accordion-item--air:hover    .accordion-icon { box-shadow: 0 6px 22px rgba(14,165,233,.45); outline-color: rgba(14,165,233,.4); }
.accordion-item--cold:hover   .accordion-icon { box-shadow: 0 6px 22px rgba(59,130,246,.45); outline-color: rgba(59,130,246,.4); }
.accordion-item--hlsk:hover   .accordion-icon { box-shadow: 0 6px 22px rgba(37,99,235,.45);  outline-color: rgba(37,99,235,.4);  }

/* Aktiv (offen) – leuchtender Ring */
.accordion-item--water.active  .accordion-icon { box-shadow: 0 8px 28px rgba(16,185,129,.55); outline-color: rgba(16,185,129,.7); }
.accordion-item--heat.active   .accordion-icon { box-shadow: 0 8px 28px rgba(234,88,12,.55);  outline-color: rgba(234,88,12,.7);  }
.accordion-item--air.active    .accordion-icon { box-shadow: 0 8px 28px rgba(14,165,233,.55); outline-color: rgba(14,165,233,.7); }
.accordion-item--cold.active   .accordion-icon { box-shadow: 0 8px 28px rgba(59,130,246,.55); outline-color: rgba(59,130,246,.7); }
.accordion-item--hlsk.active   .accordion-icon { box-shadow: 0 8px 28px rgba(37,99,235,.55);  outline-color: rgba(37,99,235,.7);  }

.accordion-header:hover .accordion-icon {
    transform: scale(1.05);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.accordion-icon img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.accordion-header-content {
    flex: 1;
}

.accordion-kg-badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    background: rgba(37, 99, 235, 0.1);
    color: var(--c-secondary);
    border-radius: var(--radius-md);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 0.4rem;
    border: 1px solid rgba(37, 99, 235, 0.2);
    font-family: var(--font-mono, 'Courier New', monospace);
}

.accordion-item--water .accordion-kg-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--c-water);
    border-color: rgba(16, 185, 129, 0.2);
}

.accordion-item--heat .accordion-kg-badge {
    background: rgba(234, 88, 12, 0.1);
    color: var(--c-heat);
    border-color: rgba(234, 88, 12, 0.2);
}

.accordion-item--air .accordion-kg-badge {
    background: rgba(14, 165, 233, 0.1);
    color: var(--c-air);
    border-color: rgba(14, 165, 233, 0.2);
}

.accordion-item--cold .accordion-kg-badge {
    background: rgba(59, 130, 246, 0.1);
    color: var(--c-cold);
    border-color: rgba(59, 130, 246, 0.2);
}

.accordion-item--hlsk .accordion-kg-badge {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.15), rgba(30, 64, 175, 0.15));
    color: var(--c-secondary);
    border-color: rgba(37, 99, 235, 0.3);
}

.accordion-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0 0 0.3rem 0;
    transition: var(--trans);
}

.accordion-header:hover .accordion-title {
    color: var(--c-secondary);
}

.accordion-summary {
    font-size: 0.9rem;
    color: var(--c-text-muted);
    margin: 0;
    line-height: 1.5;
}

.accordion-toggle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--c-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--trans);
}

.accordion-toggle i {
    font-size: 1rem;
    color: var(--c-secondary);
    transition: transform 0.3s ease;
}

.accordion-item.active .accordion-toggle {
    background: var(--c-secondary);
}

.accordion-item.active .accordion-toggle i {
    color: white;
    transform: rotate(180deg);
}

/* Accordion Content */
.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, opacity 0.3s ease;
    opacity: 0;
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
    opacity: 1;
}

.accordion-content-inner {
    padding: 0 1.75rem 1.75rem 1.75rem;
    border-top: 1px solid var(--c-border);
    margin-top: 0.5rem;
    padding-top: 1.5rem;
}

.accordion-desc {
    color: var(--c-text);
    font-size: 0.95rem;
    margin-bottom: 1.25rem;
    line-height: 1.65;
}

.accordion-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.accordion-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    font-size: 0.88rem;
    color: var(--c-text-muted);
    line-height: 1.5;
}

.accordion-list .fa-check {
    margin-top: 0.15rem;
    flex-shrink: 0;
    font-size: 0.8rem;
    transition: var(--trans);
}

.accordion-item--heat .accordion-list .fa-check { color: var(--c-heat); }
.accordion-item--cold .accordion-list .fa-check { color: var(--c-cold); }
.accordion-item--air .accordion-list .fa-check { color: var(--c-air); }
.accordion-item--water .accordion-list .fa-check { color: var(--c-water); }
.accordion-item--hlsk .accordion-list .fa-check { 
    background: linear-gradient(135deg, var(--c-secondary), #1e40af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* HLSK Gewerke Icons */
.accordion-gewerke-icons {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 2px dashed var(--c-border);
}

.gewerke-icon {
    font-size: 1.5rem;
    opacity: 0.7;
    transition: var(--trans);
    cursor: default;
}

.gewerke-icon:hover {
    opacity: 1;
    transform: scale(1.15);
}

/* HLSK Special Styling */
.accordion-item--hlsk {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border: 2px solid var(--c-secondary);
}

/* ── Planung / HOAI Leistungsphasen Accordion ── */
.accordion-item--plan {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border: 2px solid var(--c-primary-700);
}
.accordion-item--plan::before {
    background: linear-gradient(90deg, var(--c-primary-700), var(--c-accent));
}

.accordion-badge--plan {
    background: linear-gradient(135deg, var(--c-primary-700), var(--c-primary-600)) !important;
    box-shadow: 0 4px 12px rgba(27, 58, 92, 0.35);
}

.accordion-icon--plan {
    /* Fallback-Hintergrund, falls Bild nicht lädt */
    background: linear-gradient(135deg, #f0f4f8, #e8edf3);
}

.accordion-kg-badge--plan {
    background: rgba(27, 58, 92, 0.1) !important;
    color: var(--c-primary-700) !important;
    border: 1px solid rgba(27, 58, 92, 0.25) !important;
}

.hoai-phases {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin: 1rem 0;
}

.hoai-phase {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    background: #f8fafc;
    border-left: 4px solid var(--c-primary-700);
}

.hoai-phase--concept      { border-left-color: var(--c-primary-700); }
.hoai-phase--design       { border-left-color: var(--c-primary-600); }
.hoai-phase--execution    { border-left-color: var(--c-secondary); }
.hoai-phase--tender       { border-left-color: var(--c-accent); }
.hoai-phase--supervision  { border-left-color: var(--c-accent-h); }
.hoai-phase--documentation{ border-left-color: var(--c-text-muted); }

.hoai-lp {
    font-size: 0.72rem;
    font-weight: 700;
    color: #fff;
    background: var(--c-primary-700);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    white-space: nowrap;
    flex-shrink: 0;
    margin-top: 0.15rem;
}

.hoai-phase-content {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
}

.hoai-phase-content strong {
    font-size: 0.9rem;
    color: #1e293b;
}

.hoai-phase-content span {
    font-size: 0.82rem;
    color: #64748b;
    line-height: 1.4;
}

.accordion-note {
    margin-top: 1rem;
    padding: 0.85rem 1rem;
    background: rgba(245, 158, 11, 0.08);
    border-radius: 8px;
    border: 1px solid rgba(245, 158, 11, 0.3);
    font-size: 0.88rem;
    color: var(--c-primary-700);
    line-height: 1.5;
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
}

.accordion-note .fa-circle-info {
    flex-shrink: 0;
    margin-top: 0.1rem;
    color: var(--c-accent);
}

/* Responsive */
@media (max-width: 768px) {
    .accordion-header {
        padding: 1.25rem 1.25rem;
        gap: 1rem;
    }
    
    .accordion-icon {
        width: 60px;
        height: 60px;
    }
    
    .accordion-title {
        font-size: 1.15rem;
    }
    
    .accordion-summary {
        font-size: 0.85rem;
    }
    
    .accordion-toggle {
        width: 36px;
        height: 36px;
    }
    
    .accordion-content-inner {
        padding: 0 1.25rem 1.25rem 1.25rem;
    }
    
    .accordion-gewerke-icons {
        gap: 0.85rem;
    }
    
    .gewerke-icon {
        font-size: 1.3rem;
    }
}

/* HLSK Spezial Badge */
.lcard-badge {
    position: absolute;
    top: 1.25rem;
    right: 1.25rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.85rem;
    background: linear-gradient(135deg, var(--c-secondary), #1e40af);
    color: white;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
    z-index: 2;
}

.lcard-badge i {
    font-size: 0.7rem;
}

/* Gewerke Icons am unteren Rand */
.lcard-gewerke-icons {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 2px dashed var(--c-border);
}

/* =====================================================
   WARUM PS-SOLUTIONS – VISUAL GRID
   ===================================================== */
.section--visual-grid {
    background: var(--c-bg);
}

.visual-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: 1fr 1fr;
    gap: 1.5rem;
}

.visual-card {
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--c-white);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--c-border);
    transition: var(--trans);
    display: flex;
    flex-direction: column;
}

.visual-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}

.visual-card--large {
    grid-column: 1 / 3;
    grid-row: 1 / 3;
}

.visual-card-img {
    flex: 1;
    min-height: 200px;
    background-color: var(--c-primary-700);
    background-size: cover;
    background-position: center;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.visual-card--large .visual-card-img {
    min-height: 300px;
}

.visual-card-img::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(13,27,42,.15) 0%, rgba(13,27,42,.6) 100%);
    pointer-events: none;
}

.visual-card-placeholder {
    font-size: 3rem;
    color: rgba(255,255,255,.45);
    position: relative;
    z-index: 1;
}

.visual-card--large .visual-card-placeholder {
    font-size: 4.5rem;
}

.visual-card-content {
    padding: 1.5rem;
}

.visual-card--large .visual-card-content {
    padding: 2rem;
}

.visual-card-content h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: .5rem;
    display: flex;
    align-items: center;
    gap: .55rem;
}

.visual-card--large .visual-card-content h3 {
    font-size: 1.45rem;
    margin-bottom: .75rem;
}

.visual-card-content h3 i {
    color: var(--c-secondary);
    font-size: .9em;
    flex-shrink: 0;
}

.visual-card-content p {
    font-size: .9rem;
    color: var(--c-text-muted);
    line-height: 1.65;
}

.visual-card--large .visual-card-content p {
    font-size: 1rem;
}

.visual-card-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0 0;
    display: flex;
    flex-direction: column;
    gap: .55rem;
}

.visual-card-list li {
    display: flex;
    align-items: flex-start;
    gap: .55rem;
    font-size: .9rem;
    color: var(--c-text-muted);
    line-height: 1.5;
}

.visual-card-list li i {
    color: var(--c-secondary);
    font-size: .8rem;
    margin-top: .2rem;
    flex-shrink: 0;
}

.visual-card-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    color: var(--c-secondary);
    background: rgba(37,99,235,.08);
    border: 1px solid rgba(37,99,235,.2);
    padding: .3em .9em;
    border-radius: var(--radius-full);
    margin-bottom: .85rem;
}

/* Responsive */
@media (max-width: 900px) {
    .visual-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: auto;
    }
    .visual-card--large {
        grid-column: 1 / 3;
        grid-row: auto;
    }
    .visual-card--large .visual-card-img { min-height: 260px; }
}

@media (max-width: 580px) {
    .visual-grid {
        grid-template-columns: 1fr;
    }
    .visual-card--large {
        grid-column: 1;
    }
}

/* =====================================================
   PROJEKTBIBLIOTHEK
   ===================================================== */
.filter-bar {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
    justify-content: center;
    margin-bottom: 2.5rem;
}
.filter-btn {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .55rem 1.3rem;
    border-radius: var(--radius-full);
    font-size: .88rem;
    font-weight: 600;
    color: var(--c-text-muted);
    background: var(--c-white);
    border: 1.5px solid var(--c-border);
    transition: var(--trans);
    cursor: pointer;
}
.filter-btn:hover { color: var(--c-secondary); border-color: var(--c-secondary); background: rgba(37,99,235,.05); }
.filter-btn.active { color: var(--c-white); background: var(--c-secondary); border-color: var(--c-secondary); box-shadow: 0 4px 14px rgba(37,99,235,.35); }

/* Projects Grid */
.projekte-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

/* Load More Container */
.load-more-container {
    margin-top: 3rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.load-more-btn {
    padding: 0.85rem 2rem;
    font-size: 0.95rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    transition: all 0.3s ease;
}

.load-more-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 99, 235, 0.3);
}

.load-more-btn i {
    transition: transform 0.3s ease;
}

.load-more-btn:hover i {
    transform: translateY(3px);
}

.load-more-info {
    font-size: 0.88rem;
    color: var(--c-text-muted);
    margin: 0;
}

/* ── Project Cards with Overlay ── */
.pcard {
    height: 380px;
    cursor: pointer;
    transition: opacity .4s ease, transform .4s ease;
}
.pcard.filtered-out { opacity: 0; transform: scale(.9); pointer-events: none; position: absolute; }
.pcard-inner {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: var(--radius-xl);
    overflow: hidden;
}

.pcard-front, .pcard-back {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
}

/* Front */
.pcard-front { background: var(--c-primary-700); }
.pcard-img {
    width: 100%; height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
/* Dunkles Overlay für bessere Lesbarkeit bei Gewerke-Bildern */
.pcard-img::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 1;
    pointer-events: none;
}
.pcard-img-icon {
    /* Kategorie-Icons als Wasserzeichen ausgeblendet */
    display: none;
    font-size: 4.5rem;
    opacity: .25;
    color: var(--c-white);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    z-index: 1;
}
.pcard-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(13,27,42,.85) 0%, transparent 55%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    z-index: 2;
}
.pcard-badge {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    font-size: .75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .08em;
    padding: .3em .8em;
    border-radius: var(--radius-full);
    margin-bottom: .75rem;
    width: fit-content;
    color: var(--c-white);
}
.pcard-badge--heizung        { background: rgba(232,93,60,.8);   }
.pcard-badge--kaelte         { background: rgba(59,130,246,.8);  }
.pcard-badge--heizung_kaelte { background: linear-gradient(90deg, rgba(232,93,60,.8) 0%, rgba(59,130,246,.8) 100%); }
.pcard-badge--lueftung       { background: rgba(41,128,185,.8);  }
.pcard-badge--sanitaer       { background: rgba(39,174,96,.8);   }
.pcard-title { font-family: var(--font-heading); font-size: 1.2rem; font-weight: 700; color: var(--c-white); line-height: 1.25; }
.pcard-loc {
    display: flex;
    align-items: center;
    gap: .35rem;
    font-size: .8rem;
    color: rgba(255,255,255,.65);
    margin-top: .35rem;
}
.pcard-flip-hint { display: none; }

/* Image Slider */
.pcard-slider {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 1;
}
.pcard-img-bg {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}
.pcard-slides {
    position: relative;
    width: 100%;
    height: 100%;
}
.pcard-slide {
    position: absolute;
    inset: 0;
    opacity: 0;
    transition: opacity 0.6s ease-in-out;
}
.pcard-slide.active {
    opacity: 1;
}
.pcard-slide-img {
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
}

/* Slider Controls */
.pcard-slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255,255,255,0.9);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--c-primary);
    opacity: 0;
    transition: opacity 0.3s ease, background 0.2s ease;
    z-index: 3;
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}
.pcard:hover .pcard-slider-btn {
    opacity: 1;
}
.pcard-slider-btn:hover {
    background: white;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}
.pcard-slider-btn.prev {
    left: 12px;
}
.pcard-slider-btn.next {
    right: 12px;
}

/* Slider Dots */
.pcard-slider-dots {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 3;
    opacity: 0;
    transition: opacity 0.3s ease;
}
.pcard:hover .pcard-slider-dots {
    opacity: 1;
}
.pcard-slider-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    border: 2px solid white;
    cursor: pointer;
    transition: all 0.3s ease;
}
.pcard-slider-dot:hover {
    background: rgba(255,255,255,0.7);
}
.pcard-slider-dot.active {
    width: 24px;
    border-radius: 4px;
    background: white;
}

/* Info Overlay */
.pcard-back {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.75rem;
    opacity: 0;
    transition: opacity .4s ease;
    pointer-events: none;
    z-index: 4;
    background-size: cover;
    background-position: center;
}
/* Dunkles Gradient-Overlay für Lesbarkeit auf Projekt-Bildern */
.pcard-back::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(13,27,42,.95) 0%, rgba(13,27,42,.85) 50%, transparent 100%);
    backdrop-filter: blur(8px);
    z-index: -1;
    pointer-events: none;
}
/* Hover: Vorschau der Rückseite */
.pcard:hover .pcard-back {
    opacity: 1;
    pointer-events: none;
}
.pcard-back-badge { 
    margin-bottom: .5rem;
    align-self: flex-start;
    position: relative;
    z-index: 1;
}
.pcard-back-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--c-white);
    margin-bottom: .4rem;
    line-height: 1.25;
    position: relative;
    z-index: 1;
}
.pcard-back-loc { 
    font-size: .78rem; 
    color: rgba(255,255,255,.65); 
    margin-bottom: .6rem; 
    display: flex; 
    gap: .4rem; 
    align-items: center;
    position: relative;
    z-index: 1;
}
.pcard-back-desc { 
    font-size: .85rem; 
    color: rgba(255,255,255,.85); 
    line-height: 1.6; 
    margin-bottom: .8rem;
    max-height: 3.2em;
    position: relative;
    z-index: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}
.pcard-meta {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: .5rem;
    margin-bottom: .8rem;
    position: relative;
    z-index: 1;
}
.pcard-meta-item { background: rgba(255,255,255,.1); border-radius: var(--radius); padding: .5rem; }
.pcard-meta-label { font-size: .68rem; color: rgba(255,255,255,.55); text-transform: uppercase; letter-spacing: .06em; display: block; }
.pcard-meta-val   { font-size: .82rem; font-weight: 600; color: var(--c-white); display: block; }
.pcard-highlights  { display: none; }
.pcard-hl {
    font-size: .72rem;
    padding: .25em .65em;
    border-radius: var(--radius-full);
    background: rgba(37,99,235,.2);
    color: #93c5fd;
    font-weight: 500;
}
.pcard-detail-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .45rem;
    padding: .6rem .9rem;
    border-radius: var(--radius);
    background: var(--c-secondary);
    color: var(--c-white);
    font-size: .82rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--trans);
    width: 100%;
}
.pcard-detail-btn:hover, .pcard-detail-btn:focus-visible { 
    background: var(--c-secondary-h);
    transform: translateY(-1px);
}

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 2000; }
.lb-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.8);
    backdrop-filter: blur(4px);
    cursor: pointer;
}
.lb-container {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%,-50%);
    background: var(--c-white);
    border-radius: var(--radius-xl);
    width: min(700px, 96vw);
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-xl);
}
.lb-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 40px; height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--trans);
    z-index: 10;
    border: none;
    color: var(--c-text);
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.lb-close:hover { background: var(--c-text); color: var(--c-white); transform: scale(1.05); }
.lb-content { padding: 0 2rem 2rem; }
.lb-header-img {
    width: 100%;
    height: 380px;  /* Deutlich größer für bessere Präsentation */
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 5rem;
    color: rgba(255,255,255,.35);
    position: relative;
    overflow: hidden;
    background-color: var(--c-bg-alt);
    background-size: cover;
    background-position: center center;  /* Zentriert das wichtige im Bild */
    background-repeat: no-repeat;
}

/* Responsive: Kleinere Höhe auf Mobilgeräten */
@media (max-width: 768px) {
    .lb-header-img {
        height: 240px;
    }
}
.lb-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .5rem;
    margin-top: 1.25rem;
}
.lb-thumb {
    aspect-ratio: 4/3;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: rgba(255,255,255,.3);
    transition: var(--trans);
}
.lb-thumb:hover { 
    transform: scale(1.03); 
}
.lb-thumb.active {
    border-color: var(--c-primary) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

/* =====================================================
   Im Fokus
   ===================================================== */
.ueber-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}
.ueber-p { color: rgba(255,255,255,.72); line-height: 1.75; margin-bottom: 1.5rem; font-size: .97rem; }
.usp-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-top: 2rem;
}
.usp-item {
    display: flex;
    gap: .9rem;
    align-items: flex-start;
    background: rgba(255,255,255,.06);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 1rem;
    transition: var(--trans);
}
.usp-item:hover { background: rgba(255,255,255,.1); }
.usp-icon {
    width: 40px; height: 40px;
    border-radius: var(--radius);
    background: rgba(245,158,11,.15);
    color: var(--c-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: .95rem;
}
.usp-item strong { display: block; font-size: .9rem; color: var(--c-white); margin-bottom: .15rem; }
.usp-item p { font-size: .8rem; color: rgba(255,255,255,.5); margin: 0; }

/* Visual Panel */
.ueber-visual-col { position: relative; height: 400px; }
.vis-card {
    position: absolute;
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(12px);
}
.vis-card--main {
    inset: 0;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    background: rgba(8,18,52,0.8);
    border-color: rgba(37,99,235,.2);
}
.vc-dots { display: flex; gap: .4rem; margin-bottom: 1.5rem; }
.vcd { width: 12px; height: 12px; border-radius: 50%; }
.vcd--r { background: #ff5f57; }
.vcd--y { background: #febc2e; }
.vcd--g { background: #28c840; }

.vc-schematic {
    flex: 1;
    position: relative;
    overflow: hidden;
    min-height: 180px;
}
.vc-orbital-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
}
.sch-node {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .35rem;
    padding: .65rem .85rem;
    border-radius: var(--radius-lg);
    font-size: .75rem;
    font-weight: 600;
    color: var(--c-white);
    border: 1px solid rgba(255,255,255,.12);
    z-index: 2;
    white-space: nowrap;
}
.sch-node i { font-size: 1.1rem; }
.sch-node--h {
    background: rgba(232, 94, 60, 0.699);
    color: #ffb347;
    border-color: rgba(249,115,22,.35);
    box-shadow: 0 0 18px rgba(249,115,22,.2);
    top: 0; left: 50%;
    transform: translateX(-50%);
}
.sch-node--c {
    background: rgba(59, 131, 246, 0.705);
    color: #93c5fd;
    border-color: rgba(96,165,250,.35);
    box-shadow: 0 0 18px rgba(96,165,250,.2);
    top: 50%; left: 0;
    transform: translateY(-50%);
}
.sch-node--a {
    background: rgba(45, 212, 190, 0.699);
    color: #5eead4;
    border-color: rgba(45,212,191,.35);
    box-shadow: 0 0 18px rgba(45,212,191,.2);
    top: 50%; right: 0;
    transform: translateY(-50%);
}
.sch-node--s {
    background: rgba(39, 174, 95, 0.699);
    color: #6ee7b7;
    border-color: rgba(74,222,128,.35);
    box-shadow: 0 0 18px rgba(74,222,128,.2);
    bottom: 0; left: 50%;
    transform: translateX(-50%);
}
.sch-center {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 62px; height: 62px;
    background: rgba(37,99,235,.25);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: .04em;
    color: var(--c-white);
    border: 2px solid rgba(37,99,235,.85);
    box-shadow: 0 0 28px rgba(37,99,235,.55), inset 0 0 14px rgba(37,99,235,.15);
    z-index: 2;
}

.vc-footer-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1rem;
    border-top: 1px solid rgba(255,255,255,.1);
    font-size: .75rem;
    color: rgba(255,255,255,.45);
}
.vc-live { display: flex; align-items: center; gap: .4rem; color: #6ee7b7; }
.live-dot { width: 8px; height: 8px; background: #22c55e; border-radius: 50%; box-shadow: 0 0 8px #22c55e; animation: pulse 2s infinite; }

.vis-card--sm {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .65rem 1rem;
    font-size: .8rem;
    font-weight: 600;
    color: var(--c-white);
    border-radius: var(--radius-lg);
    white-space: nowrap;
}
.vis-card--tl { top: -1.5rem; right: -1.5rem; background: rgba(245,158,11,.15); border-color: rgba(245,158,11,.25); }
.vis-card--tl i { color: var(--c-accent); }
.vis-card--br { bottom: -1.5rem; right: -1.5rem; background: rgba(37,99,235,.15); border-color: rgba(37,99,235,.25); }
.vis-card--br i { color: #93c5fd; }

/* =====================================================
   PROZESS SLIDER (PlayStation-Style)
   ===================================================== */

/* Wrapper */
.prozess-slider {
    position: relative;
    padding-bottom: 2.5rem; /* Platz für Dots */
}
.prozess-slider-viewport {
    position: relative;
    height: 480px;
    overflow: hidden;
}

/* Einzelne Slides – alle absolut im Viewport zentriert */
.pslide {
    position: absolute;
    width: 360px;
    left: 50%;
    top: 0;
    transform: translateX(-50%) scale(0.7);
    opacity: 0;
    transition: transform .52s cubic-bezier(.4,0,.2,1),
                opacity   .52s cubic-bezier(.4,0,.2,1),
                box-shadow .52s ease;
    pointer-events: none;
    border-radius: var(--radius-xl);
    overflow: hidden;
    background: var(--c-white);
    box-shadow: 0 4px 20px rgba(0,0,0,.1);
}
/* Aktive Karte – groß, zentriert */
.pslide--active {
    transform: translateX(-50%) scale(1);
    opacity: 1;
    pointer-events: auto;
    z-index: 3;
    box-shadow: 0 24px 64px rgba(0,0,0,.2);
}
/* Linke Nachbarkarte */
.pslide--prev {
    transform: translateX(calc(-50% - 400px)) scale(0.8);
    opacity: 0.55;
    z-index: 2;
    pointer-events: auto;
    cursor: pointer;
}
/* Rechte Nachbarkarte */
.pslide--next {
    transform: translateX(calc(-50% + 400px)) scale(0.8);
    opacity: 0.55;
    z-index: 2;
    pointer-events: auto;
    cursor: pointer;
}
.pslide--prev:hover { opacity: 0.75; }
.pslide--next:hover { opacity: 0.75; }

/* Cover-Bereich (Titelbild) */
.pslide-cover {
    position: relative;
    height: 230px;
    background: linear-gradient(145deg, var(--ca, #1B3A5C) 0%, var(--cb, #2563EB) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}
.pslide-cover::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at 30% 60%, rgba(255,255,255,.13) 0%, transparent 60%);
    pointer-events: none;
}
.pslide-num {
    position: absolute;
    top: .8rem;
    left: 1.1rem;
    font-size: 3rem;
    font-weight: 800;
    font-family: var(--font-heading);
    color: rgba(255,255,255,.15);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}
.pslide-icon {
    width: 76px; height: 76px;
    border-radius: 50%;
    background: rgba(255,255,255,.2);
    backdrop-filter: blur(6px);
    color: #fff;
    font-size: 1.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 28px rgba(0,0,0,.22);
    position: relative;
    z-index: 1;
    transition: transform .3s cubic-bezier(.34,1.56,.64,1);
}
.pslide--active .pslide-icon { transform: scale(1.08); }

/* Karten-Body */
.pslide-body {
    padding: 1.4rem 1.6rem 1.6rem;
}
.pslide-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: .45rem;
    color: var(--c-heading);
    line-height: 1.3;
}
.pslide-desc {
    font-size: .85rem;
    color: var(--c-text-muted);
    line-height: 1.65;
    margin-bottom: .8rem;
}

/* LP-Tags – Animation auf aktiver Karte */
.pslide .pstep-tag {
    opacity: 0;
    transform: translateY(8px) scale(.82);
}
.pslide--active .pstep-tag              { opacity: 1; transform: translateY(0) scale(1); }
.pslide--active .pstep-tag:nth-child(1) { transition-delay: .22s; }
.pslide--active .pstep-tag:nth-child(2) { transition-delay: .32s; }

/* Pfeil-Navigation */
.prozess-nav {
    position: absolute;
    top: calc(230px / 2);            /* Mitte des Cover-Bereichs */
    transform: translateY(-50%);
    z-index: 10;
    width: 46px; height: 46px;
    border-radius: 50%;
    border: none;
    background: var(--c-white);
    color: var(--c-secondary);
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 4px 18px rgba(0,0,0,.14);
    transition: background .2s, color .2s, transform .2s;
}
.prozess-nav:hover {
    background: var(--c-secondary);
    color: #fff;
    transform: translateY(-50%) scale(1.1);
}
.prozess-nav--prev { left:  calc(50% - 225px); }
.prozess-nav--next { right: calc(50% - 225px); }
.prozess-nav:disabled { opacity: .3; cursor: not-allowed; pointer-events: none; }

/* Dot-Indikatoren */
.prozess-dots {
    display: flex;
    justify-content: center;
    gap: .5rem;
    position: absolute;
    bottom: 0;
    left: 0; right: 0;
}
.prozess-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    border: none;
    background: var(--c-border);
    cursor: pointer;
    padding: 0;
    transition: background .25s, width .25s;
}
.prozess-dot--active {
    background: var(--c-secondary);
    width: 26px;
    border-radius: var(--radius-full);
}

/* Touch-Indikator (nur mobile) */
.prozess-swipe-hint {
    display: none;
    text-align: center;
    font-size: .78rem;
    color: var(--c-text-muted);
    margin-top: .75rem;
    opacity: .7;
}

/* LP-Tags pop-in */
.pstep-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .35rem;
    justify-content: center;
    margin-top: .9rem;
}
.pstep-tag {
    display: inline-flex;
    align-items: center;
    gap: .25rem;
    font-size: .68rem;
    font-weight: 700;
    letter-spacing: .07em;
    padding: .25em .8em;
    border-radius: var(--radius-full);
    border: 1.5px solid;
    cursor: default;
    opacity: 0;
    transform: translateY(8px) scale(.82);
    transition: opacity .35s ease, transform .3s cubic-bezier(.34,1.56,.64,1),
                box-shadow .3s ease, filter .2s ease;
}
/* Wird durch .pslide--active gesteuert (siehe PROZESS SLIDER) */
/* Phase (LP 1-3) – Blau */
.pstep-tag--phase {
    color: var(--c-secondary);
    background: rgba(37,99,235,.08);
    border-color: rgba(37,99,235,.28);
}
/* Ausführung (LP 4-6) – Amber */
.pstep-tag--exec {
    color: var(--c-accent-h, #d97706);
    background: rgba(245,158,11,.1);
    border-color: rgba(245,158,11,.32);
}
/* Baubegleitung (LP 8-9) – Grün */
.pstep-tag--site {
    color: var(--c-water, #27ae60);
    background: rgba(39,174,96,.1);
    border-color: rgba(39,174,96,.32);
}
/* Klickbar – Glow + Pulse-Animation */
.pstep-tag[data-lp] {
    cursor: pointer;
    position: relative;
}
/* Sanfte Leucht-Pulse Animation */
@keyframes lp-pulse {
    0%, 100% { box-shadow: 0 0 0 0 currentColor; opacity: 1; }
    50%       { box-shadow: 0 0 0 5px transparent; opacity: .85; }
}
.pslide--active .pstep-tag[data-lp] {
    animation: lp-pulse 2.4s ease-in-out infinite;
    box-shadow: 0 2px 10px color-mix(in srgb, currentColor 30%, transparent);
}
.pstep-tag[data-lp]:hover {
    transform: translateY(-2px) scale(1.08);
    filter: brightness(1.15);
    box-shadow: 0 4px 16px color-mix(in srgb, currentColor 45%, transparent) !important;
    animation: none;
}
.pstep-tag[data-lp]:active {
    transform: scale(.97);
}

/* ── LP-Popover ── */
.lp-popover {
    position: fixed;
    z-index: 2000;
    width: 300px;
    background: var(--c-white);
    border-radius: var(--radius-xl);
    box-shadow: 0 8px 40px rgba(0,0,0,.18), 0 2px 8px rgba(0,0,0,.08);
    border: 1px solid var(--c-border);
    padding: 0;
    overflow: hidden;
    opacity: 0;
    transform: translateY(6px) scale(.97);
    transition: opacity .22s ease, transform .22s cubic-bezier(.34,1.4,.64,1);
    pointer-events: none;
}
.lp-popover.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}
/* Kleiner Pfeil */
.lp-popover::before {
    content: '';
    position: absolute;
    left: var(--aw, 50%);
    width: 14px; height: 14px;
    background: var(--c-white);
    border-right: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
    margin-left: -7px;
}
.lp-popover.arrow-down::before { bottom: -7px; top: auto; transform: rotate(45deg); }
.lp-popover.arrow-up::before   { top: -7px; bottom: auto; transform: rotate(225deg); }

.lp-pop-header {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding: 1.1rem 1.25rem .9rem;
    border-bottom: 1px solid var(--c-border);
}
.lp-pop-badge {
    width: 44px; height: 44px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 800;
    flex-shrink: 0;
    line-height: 1;
}
.lp-pop-badge--phase { background: rgba(37,99,235,.1);  color: var(--c-secondary); }
.lp-pop-badge--exec  { background: rgba(245,158,11,.12); color: #d97706; }
.lp-pop-badge--site  { background: rgba(39,174,96,.12);  color: #16a34a; }
.lp-pop-num  { font-size: .64rem; font-weight: 700; letter-spacing: .08em; color: var(--c-text-muted); display: block; }
.lp-pop-name { font-size: .96rem; font-weight: 700; color: var(--c-text); line-height: 1.25; }

.lp-pop-body { padding: .95rem 1.25rem 1.1rem; }
.lp-pop-desc {
    font-size: .83rem;
    color: var(--c-text-muted);
    line-height: 1.6;
    margin-bottom: .85rem;
}
.lp-pop-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: .35rem;
}
.lp-pop-list li {
    display: flex;
    align-items: flex-start;
    gap: .5rem;
    font-size: .8rem;
    color: var(--c-text);
    line-height: 1.45;
}
.lp-pop-list li::before {
    content: '';
    width: 6px; height: 6px;
    border-radius: 50%;
    margin-top: .38rem;
    flex-shrink: 0;
}
.lp-pop-list--phase li::before { background: var(--c-secondary); }
.lp-pop-list--exec  li::before { background: #d97706; }
.lp-pop-list--site  li::before { background: #16a34a; }

.lp-pop-close {
    position: absolute;
    top: .6rem; right: .6rem;
    width: 24px; height: 24px;
    border-radius: 50%;
    background: var(--c-bg-alt);
    border: none;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    color: var(--c-text-muted);
    font-size: .8rem;
    transition: background .15s, color .15s;
    line-height: 1;
}
.lp-pop-close:hover { background: var(--c-border); color: var(--c-text); }

/* Overlay (mobil) */
.lp-overlay {
    position: fixed; inset: 0;
    z-index: 1999;
    background: rgba(0,0,0,.3);
    opacity: 0;
    transition: opacity .22s;
    pointer-events: none;
}
.lp-overlay.is-open { opacity: 1; pointer-events: auto; }

/* =====================================================
   KONTAKT
   ===================================================== */
.kontakt-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 3rem;
    align-items: flex-start;
}
.kontakt-form-wrap {
    background: var(--c-white);
    border-radius: var(--radius-xl);
    padding: 2.25rem;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--c-border);
}
/* Honeypot */
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.form-label { font-size: .85rem; font-weight: 600; color: var(--c-text); }
.form-label span { color: var(--c-heat); }
.form-input {
    width: 100%;
    padding: .75rem 1rem;
    border: 1.5px solid var(--c-border);
    border-radius: var(--radius);
    font-size: .92rem;
    color: var(--c-text);
    background: var(--c-bg);
    transition: var(--trans-fast);
    outline: none;
    -webkit-appearance: none;
}
.form-input:focus { border-color: var(--c-secondary); background: var(--c-white); box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.form-input.is-invalid { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239,68,68,.1); }
.form-textarea { resize: vertical; min-height: 120px; }
.form-error { font-size: .78rem; color: #ef4444; min-height: 1.1em; display: block; }
.char-counter { font-size: .75rem; color: var(--c-text-light); text-align: right; }

.select-wrap { position: relative; }
.select-wrap .fa-chevron-down {
    position: absolute; right: .9rem; top: 50%; transform: translateY(-50%);
    color: var(--c-text-muted); font-size: .8rem; pointer-events: none;
}
.form-select { padding-right: 2.5rem; cursor: pointer; }

.checkbox-label {
    display: flex;
    gap: .75rem;
    align-items: flex-start;
    cursor: pointer;
    font-size: .85rem;
    color: var(--c-text-muted);
    line-height: 1.5;
    user-select: none;
}
.checkbox-label input[type="checkbox"] { position: absolute; opacity: 0; width: 0; height: 0; }
.checkbox-custom {
    width: 18px; height: 18px;
    min-width: 18px;
    border: 2px solid var(--c-border);
    border-radius: 4px;
    background: var(--c-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-top: .1rem;
    transition: var(--trans-fast);
}
.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom {
    background: var(--c-secondary);
    border-color: var(--c-secondary);
}
.checkbox-label input[type="checkbox"]:checked ~ .checkbox-custom::after {
    content: '';
    width: 5px; height: 9px;
    border: 2px solid white;
    border-top: none; border-left: none;
    transform: rotate(45deg) translate(-1px, -1px);
    display: block;
}
.form-link { color: var(--c-secondary); text-decoration: underline; }
.form-note { font-size: .78rem; color: var(--c-text-light); text-align: center; margin-top: .75rem; display: flex; align-items: center; justify-content: center; gap: .4rem; }
.form-note .fa-lock { color: var(--c-water); }

.form-success {
    text-align: center;
    padding: 3rem 2rem;
}
.success-icon { font-size: 3.5rem; color: var(--c-water); margin-bottom: 1rem; }
.form-success h3 { font-family: var(--font-heading); font-size: 1.6rem; margin-bottom: .5rem; }
.form-success p { color: var(--c-text-muted); }

/* Kontakt Info */
.ki-title { font-family: var(--font-heading); font-size: 1.4rem; margin-bottom: 1.5rem; }
.ki-methods { display: flex; flex-direction: column; gap: .75rem; margin-bottom: 1.75rem; }
.ki-item {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: .9rem 1rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    background: var(--c-white);
    color: var(--c-text);
    text-decoration: none;
    transition: var(--trans);
}
.ki-item:not(.ki-item--static):hover { border-color: var(--c-secondary); box-shadow: var(--shadow-sm); transform: translateX(4px); }
.ki-icon {
    width: 44px; height: 44px;
    border-radius: var(--radius);
    background: rgba(37,99,235,.08);
    color: var(--c-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.ki-label { font-size: .75rem; color: var(--c-text-muted); display: block; text-transform: uppercase; letter-spacing: .06em; }
.ki-val   { font-size: .92rem; font-weight: 600; display: block; margin-top: .1rem; }

/* Map Placeholder */
.map-placeholder {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--c-border);
}
.map-inner {
    height: 180px;
    background: var(--c-bg-alt);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}
.map-grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(37,99,235,.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(37,99,235,.08) 1px, transparent 1px);
    background-size: 32px 32px;
}
.map-pin-icon { font-size: 2.5rem; color: #ef4444; position: relative; z-index: 1; filter: drop-shadow(0 4px 8px rgba(239,68,68,.4)); }
.map-note { font-size: .78rem; color: var(--c-text-light); text-align: center; padding: .65rem; background: var(--c-bg-alt); display: flex; align-items: center; justify-content: center; gap: .4rem; }

/* vCard Download Button */
.vcard-download-btn {
    width: 100%;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.25rem 1.5rem;
    margin-top: 1.5rem;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    cursor: pointer;
    transition: var(--trans);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
    font-family: var(--font-body);
}
.vcard-download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
}
.vcard-download-btn:active {
    transform: translateY(-1px);
}
.vcard-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.5rem;
}
.vcard-text {
    flex: 1;
    text-align: left;
}
.vcard-label {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}
.vcard-desc {
    display: block;
    font-size: 0.8rem;
    opacity: 0.9;
    margin-top: 0.15rem;
}
.vcard-arrow {
    font-size: 1.25rem;
    opacity: 0.9;
    transition: var(--trans-fast);
}
.vcard-download-btn:hover .vcard-arrow {
    transform: translateX(4px);
}

/* =====================================================
   FOOTER
   ===================================================== */
.footer { background: var(--c-primary); color: rgba(255,255,255,.7); padding-block: 4rem 2rem; }
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 2rem;
    margin-bottom: 3rem;
}
.footer-brand-col .navbar-brand { margin-bottom: 1rem; display: inline-flex; }
.footer-tagline { font-size: .88rem; line-height: 1.6; color: rgba(255,255,255,.55); margin-bottom: 1.25rem; }
.footer-social { display: flex; gap: .65rem; }
.social-link {
    width: 38px; height: 38px;
    border-radius: var(--radius);
    background: rgba(255,255,255,.07);
    border: 1px solid rgba(255,255,255,.12);
    color: rgba(255,255,255,.7);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .9rem;
    transition: var(--trans);
    text-decoration: none;
}
.social-link:hover { background: var(--c-secondary); border-color: var(--c-secondary); color: var(--c-white); }
.footer-nav h4 { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--c-white); margin-bottom: 1rem; }
.footer-nav ul { display: flex; flex-direction: column; gap: .55rem; }
.footer-nav a { font-size: .88rem; color: rgba(255,255,255,.55); transition: var(--trans-fast); text-decoration: none; }
.footer-nav a:hover { color: var(--c-white); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-size: .82rem;
    color: rgba(255,255,255,.4);
}
.footer-secure { display: flex; align-items: center; gap: .5rem; }
.footer-secure .fa-shield-halved { color: var(--c-water); }
.footer-secure .fa-lock { color: var(--c-accent); }

/* ── Back to Top ── */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 46px; height: 46px;
    border-radius: 50%;
    background: var(--c-secondary);
    color: var(--c-white);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    border: none;
    z-index: 900;
    transition: var(--trans);
    font-size: .9rem;
}
.back-to-top:hover, .back-to-top:focus-visible { background: var(--c-secondary-h); transform: translateY(-3px); }

/* =====================================================
   RESPONSIVE – Tablet (≤ 1024px)
   ===================================================== */
@media (max-width: 1024px) {
    :root { --section-gap: 4.5rem; }

    .leistungen-grid { grid-template-columns: 1fr 1fr; }

    .projekte-grid { grid-template-columns: repeat(2, 1fr); }

    .ueber-grid { grid-template-columns: 1fr; gap: 3rem; }
    .ueber-visual-col { height: 320px; }

    .prozess-nav--prev { left: calc(50% - 200px); }
    .prozess-nav--next { right: calc(50% - 200px); }

    .footer-grid { grid-template-columns: 1fr 1fr; }
    .footer-brand-col { grid-column: span 2; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); row-gap: 1.5rem; }
}

/* =====================================================
   RESPONSIVE – Mobile (≤ 768px)
   ===================================================== */
@media (max-width: 768px) {
    :root { --section-gap: 3.5rem; }

    /* Nav */
    .nav-toggle { display: flex; }
    .nav-menu {
        position: fixed;
        inset: 0 0 0 0;
        top: 0;
        background: rgba(13,27,42,.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 1.5rem;
        transform: translateX(100%);
        transition: transform .35s cubic-bezier(.4,0,.2,1);
        z-index: 999;
    }
    .nav-menu.is-open { transform: translateX(0); }
    .nav-link { font-size: 1.2rem; padding: .75rem 2rem; }
    .nav-cta { margin-left: 0; margin-top: .5rem; }

    /* Hero */
    .hero-stats-bar { position: relative; }
    .hero { min-height: auto; padding-bottom: 0; }
    .hero-content { padding-top: 6rem; padding-bottom: 6rem; }
    .hero-scroll-hint { display: none; }

    /* Leistungen */
    .leistungen-grid { grid-template-columns: 1fr; }

    /* Projekte */
    .projekte-grid { grid-template-columns: 1fr; }
    .pcard { height: 340px; }
    
    .load-more-btn {
        width: 100%;
        max-width: 320px;
        font-size: 0.9rem;
    }
    
    /* On mobile: Slider controls always visible, info overlay always visible */
    .pcard-slider-btn {
        opacity: 0.8;
        width: 32px;
        height: 32px;
    }
    .pcard-slider-dots {
        opacity: 0.9;
    }
    .pcard-back { opacity: 1; pointer-events: auto; }

    /* Im Fokus */
    .usp-grid { grid-template-columns: 1fr; }
    .ueber-visual-col { display: none; }

    /* Prozess Slider – Mobile */
    .prozess-slider-viewport { height: 420px; }
    .pslide { width: 280px; }
    .pslide--prev { transform: translateX(calc(-50% - 295px)) scale(0.78); }
    .pslide--next { transform: translateX(calc(-50% + 295px)) scale(0.78); }
    .pslide-cover { height: 180px; }
    .prozess-nav--prev { left: .75rem; }
    .prozess-nav--next { right: .75rem; }
    .prozess-swipe-hint { display: block; }

    /* Kontakt */
    .kontakt-grid { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .kontakt-form-wrap { padding: 1.5rem; }

    /* Lightbox */
    .lb-gallery { grid-template-columns: repeat(2, 1fr); }
    .lb-content { padding: 1rem 1.25rem 1.5rem; }

    /* Footer */
    .footer-grid { grid-template-columns: 1fr; }
    .footer-brand-col { grid-column: auto; }
    .footer-bottom { flex-direction: column; text-align: center; }
}

/* =====================================================
   RESPONSIVE – Small Mobile (≤ 480px)
   ===================================================== */
@media (max-width: 480px) {
    .hero-title { font-size: 1.9rem; }
    .hero-actions { flex-direction: column; }
    .btn { justify-content: center; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .kontakt-form-wrap { padding: 1.25rem; }
}

/* ── Focus Visible (accessibility) ── */
:focus-visible {
    outline: 2px solid var(--c-secondary);
    outline-offset: 3px;
    border-radius: 4px;
}

/* =====================================================
   PRELOADER
   ===================================================== */
.preloader {
    position: fixed;
    inset: 0;
    background: var(--c-primary);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity .6s ease, visibility .6s ease;
}
.preloader.is-hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}
.preloader-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.75rem;
}
.preloader-ring {
    width: 68px;
    height: 68px;
    border: 3px solid rgba(255,255,255,.1);
    border-top-color: var(--c-secondary);
    border-right-color: var(--c-accent);
    border-radius: 50%;
    animation: spinRing 1s linear infinite;
}
@keyframes spinRing { to { transform: rotate(360deg); } }

/* =====================================================
   TESTIMONIALS
   ===================================================== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}
.tcard {
    background: var(--c-white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--c-border);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    position: relative;
    overflow: hidden;
    transition: var(--trans);
}
.tcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-xl); }
.tcard::before {
    content: '\201C';
    position: absolute;
    top: .25rem;
    right: 1.25rem;
    font-size: 7rem;
    font-family: Georgia, serif;
    color: rgba(37,99,235,.06);
    line-height: 1;
    pointer-events: none;
    user-select: none;
}
.tcard-stars { display: flex; gap: .2rem; color: #f59e0b; font-size: .95rem; }
.tcard-quote {
    font-size: .94rem;
    line-height: 1.8;
    color: var(--c-text-muted);
    flex: 1;
    border: none;
    margin: 0;
    padding: 0;
    font-style: italic;
}
.tcard-author {
    display: flex;
    align-items: center;
    gap: .9rem;
    padding-top: 1rem;
    border-top: 1px solid var(--c-border);
}
.tcard-avatar {
    width: 44px; height: 44px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .82rem;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
    letter-spacing: .02em;
}
.tcard-avatar--blue   { background: linear-gradient(135deg, var(--c-secondary), #7c3aed); }
.tcard-avatar--teal   { background: linear-gradient(135deg, var(--c-water), #0891b2); }
.tcard-avatar--orange { background: linear-gradient(135deg, var(--c-heat), var(--c-accent)); }
.tcard-name { display: block; font-size: .9rem; font-weight: 700; color: var(--c-text); }
.tcard-role { display: block; font-size: .76rem; color: var(--c-text-muted); margin-top: .1rem; }
.tcard-meta {
    font-size: .77rem;
    color: var(--c-text-light);
    display: flex;
    align-items: center;
    gap: .4rem;
}
.tcard-meta i { color: var(--c-secondary); font-size: .75rem; }

/* =====================================================
   COOKIE CONSENT BANNER
   ===================================================== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0; right: 0;
    z-index: 1500;
    background: rgba(13,27,42,.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-top: 1px solid rgba(255,255,255,.1);
    padding-block: 1.1rem;
    animation: cookieSlideUp .45s cubic-bezier(.4,0,.2,1) both;
}
@keyframes cookieSlideUp {
    from { transform: translateY(100%); }
    to   { transform: translateY(0); }
}
.cookie-inner {
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    flex-wrap: wrap;
}
.cookie-main  { display: flex; align-items: center; gap: .9rem; flex: 1; min-width: 280px; }
.cookie-icon  { font-size: 1.6rem; color: var(--c-accent); flex-shrink: 0; }
.cookie-title { font-size: .9rem; font-weight: 700; color: white; margin-bottom: .15rem; }
.cookie-text  { font-size: .8rem; color: rgba(255,255,255,.62); line-height: 1.55; margin: 0; }
.cookie-link  { color: var(--c-accent); text-decoration: underline; }
.cookie-link:hover { color: white; }
.cookie-actions { display: flex; gap: .6rem; flex-shrink: 0; flex-wrap: wrap; }
.btn-cookie-decline {
    padding: .58rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: .83rem;
    font-weight: 600;
    color: rgba(255,255,255,.75);
    background: rgba(255,255,255,.08);
    border: 1.5px solid rgba(255,255,255,.2);
    cursor: pointer;
    transition: var(--trans);
    font-family: inherit;
}
.btn-cookie-decline:hover { background: rgba(255,255,255,.15); color: white; }
.btn-cookie-accept {
    padding: .58rem 1.2rem;
    border-radius: var(--radius-full);
    font-size: .83rem;
    font-weight: 600;
    color: white;
    background: var(--c-secondary);
    border: none;
    cursor: pointer;
    transition: var(--trans);
    box-shadow: 0 3px 12px rgba(37,99,235,.4);
    font-family: inherit;
}
.btn-cookie-accept:hover { background: var(--c-secondary-h); transform: translateY(-1px); }

/* Responsive Testimonials + Cookie */
@media (max-width: 768px) {
    .testimonials-grid { grid-template-columns: 1fr; }
    .cookie-inner { flex-direction: column; align-items: flex-start; }
    .cookie-actions { width: 100%; }
    .btn-cookie-decline,
    .btn-cookie-accept { flex: 1; text-align: center; justify-content: center; }
}
@media (max-width: 1024px) {
    .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
    .tcard:last-child  { grid-column: span 2; max-width: 480px; margin-inline: auto; width: 100%; }
}

/* =====================================================
   WERKZEUGE & DATENFORMATE
   ===================================================== */
.werkzeuge-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.werkzeuge-card {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    transition: box-shadow .25s, transform .25s;
}
.werkzeuge-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
}

.werkzeuge-card-header {
    display: flex;
    align-items: center;
    gap: .9rem;
    margin-bottom: .75rem;
}

.werkzeuge-card-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(37,99,235,.1);
    color: var(--c-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}
.werkzeuge-card-icon--calc {
    background: rgba(16,185,129,.1);
    color: #10b981;
}
.werkzeuge-card-icon--data {
    background: rgba(245,158,11,.1);
    color: #b45309;
}

.werkzeuge-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--c-text);
    margin: 0;
}

.werkzeuge-card-desc {
    font-size: .88rem;
    color: var(--c-text-muted);
    line-height: 1.65;
    margin-bottom: 1.25rem;
}

.werkzeuge-tags {
    display: flex;
    flex-wrap: wrap;
    gap: .45rem;
}

.werkzeug-tag {
    font-size: .76rem;
    font-weight: 600;
    padding: .28em .8em;
    border-radius: var(--radius-full);
    background: rgba(37,99,235,.07);
    color: var(--c-secondary);
    border: 1px solid rgba(37,99,235,.18);
    letter-spacing: .02em;
}
.werkzeug-tag--accent {
    background: rgba(245,158,11,.08);
    color: #b45309;
    border-color: rgba(245,158,11,.25);
}

/* ── Datenaustausch-Flow ── */
.datenaustausch-flow {
    background: var(--c-white);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-xl);
    padding: 2rem 2.5rem;
    text-align: center;
}

.flow-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--c-text);
    margin-bottom: 1.75rem;
    letter-spacing: .02em;
    text-transform: uppercase;
    font-size: .82rem;
    letter-spacing: .1em;
    color: var(--c-text-muted);
}

.flow-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: .75rem 0;
}

.flow-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .6rem;
    flex: 0 0 auto;
}

.flow-step-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--c-secondary), #1d4ed8);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    box-shadow: 0 4px 14px rgba(37,99,235,.3);
}

.flow-step-label {
    font-size: .75rem;
    font-weight: 600;
    color: var(--c-text-muted);
    max-width: 90px;
    text-align: center;
    line-height: 1.35;
}

.flow-arrow {
    color: var(--c-border);
    font-size: 1rem;
    padding: 0 .6rem;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

/* Responsive */
@media (max-width: 1024px) {
    .werkzeuge-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .werkzeuge-grid { grid-template-columns: 1fr; }
    .datenaustausch-flow { padding: 1.5rem 1rem; }
    .flow-steps { flex-direction: column; gap: .5rem; }
    .flow-arrow { transform: rotate(90deg); margin-bottom: 0; padding: .4rem 0; }
}