/* =========================================================
   QUANTUM AI AUTONOMOUS PORTS ACADEMY — STYLESHEET
   Version: 1.0
   ---------------------------------------------------------
   1. CSS Custom Properties
   2. Reset & Base Styles
   3. Typography
   4. Utilities & Glassmorphism
   5. Header & Navigation
   6. Hero Section
   7. Systeme (Akademie)
   8. Programme
   9. Port Lab
  10. Kontakt
  11. Footer
  12. Keyframes & Animations
  13. Scroll-Reveal Utilities
  14. Responsive Design
   ========================================================= */

/* ========================
   1. CSS CUSTOM PROPERTIES
   ======================== */
:root {
    --bg-body: #020c1b;
    --bg-surface: #0a192f;
    --bg-card: #112240;
    --border-color: rgba(0, 240, 255, 0.15);
    --neon-cyan: #00f0ff;
    --neon-mint: #64ffda;
    --text: #ccd6f6;
    --text-muted: #8892b0;
    --heading: #e6f1ff;
    --transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --font-display: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --radius: 16px;
}

/* ========================
   2. RESET & BASE STYLES
   ======================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-body);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

img {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul {
    list-style: none;
}

/* ========================
   3. TYPOGRAPHY
   ======================== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--heading);
    line-height: 1.25;
}

h2 {
    font-size: clamp(1.8rem, 4vw, 2.8rem);
}

h3 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
}

address {
    font-style: normal;
}

/* ========================
   4. UTILITIES & GLASSMORPHISM
   ======================== */
.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.glass-card {
    background: rgba(17, 34, 64, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2.5rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.glass-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(0, 240, 255, 0.03) 50%,
        transparent 60%
    );
    transform: rotate(45deg);
    transition: var(--transition);
    pointer-events: none;
}

.glass-card:hover {
    border-color: rgba(0, 240, 255, 0.35);
    box-shadow: 0 8px 32px rgba(0, 240, 255, 0.08);
    transform: translateY(-4px);
}

.section {
    padding: 7rem 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    margin-bottom: 0.75rem;
    display: inline-block;
}

.line-deco {
    width: 80px;
    height: 2px;
    background: var(--neon-cyan);
    margin: 0 auto;
    box-shadow: 0 0 10px var(--neon-cyan);
    border-radius: 2px;
}

/* ========================
   5. HEADER & NAVIGATION
   ======================== */
.glass-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 4%;
    background: linear-gradient(180deg, rgba(10,25,47,0.95) 0%, rgba(10,25,47,0.85) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 240, 255, 0.15);
}

.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--heading);
    display: flex;
    align-items: center;
    gap: 0.7rem;
    letter-spacing: 0.5px;
}

.logo i {
    color: var(--neon-cyan);
    font-size: 1.3rem;
    filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.4));
}

.logo span {
    font-weight: 500;
    color: var(--neon-cyan);
}

.main-nav ul {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}

.main-nav a {
    font-family: var(--font-display);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text);
    position: relative;
    padding-bottom: 0.35rem;
    display: block;
}

.main-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--neon-cyan);
    box-shadow: 0 0 8px var(--neon-cyan);
    transition: width 0.35s ease;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--neon-cyan);
}

.main-nav a:hover::after,
.main-nav a.active::after {
    width: 100%;
}

.mobile-toggle {
    display: none;
    background: none;
    border: 1px solid rgba(0, 240, 255, 0.3);
    color: var(--neon-cyan);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.4rem 0.75rem;
    border-radius: 6px;
    backdrop-filter: blur(4px);
}

/* ========================
   6. HERO SECTION
   ======================== */
.hero {
    position: relative;
    width: 100%;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(
            circle at 50% 50%,
            #112240 0%,
            #0a192f 40%,
            #020c1b 100%
        );
}

#logistics-canvas {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.scanlines {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background: linear-gradient(
        to bottom,
        rgba(255,255,255,0) 50%,
        rgba(0,0,0,0.2) 50%
    );
    background-size: 100% 3px;
    opacity: 0.2;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
}

.eyebrow {
    font-family: var(--font-display);
    color: var(--neon-mint);
    letter-spacing: 4px;
    text-transform: uppercase;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
    display: inline-block;
    text-shadow: 0 0 10px rgba(100, 255, 218, 0.25);
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 4.2rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    color: var(--heading);
    text-shadow:
        0 0 20px rgba(0, 240, 255, 0.35),
        0 0 60px rgba(0, 240, 255, 0.1);
}

.hero .subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
    line-height: 1.7;
}

.cta-btn {
    display: inline-block;
    padding: 1.1rem 2.8rem;
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2.5px;
    color: var(--neon-cyan);
    background: rgba(0, 240, 255, 0.05);
    border: 1px solid var(--neon-cyan);
    border-radius: 4px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1);
}

.cta-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(0, 240, 255, 0.2),
        transparent
    );
    transition: left 0.6s ease;
}

.cta-btn:hover,
.cta-btn:focus-visible {
    background: rgba(0, 240, 255, 0.1);
    color: var(--heading);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.3), inset 0 0 12px rgba(0, 240, 255, 0.1);
    transform: translateY(-2px);
}

.cta-btn:hover::before,
.cta-btn:focus-visible::before {
    left: 100%;
}

/* ========================
   7. SYSTEME (AKADEMIE)
   ======================== */
.systeme {
    background: linear-gradient(180deg, var(--bg-body) 0%, #081325 100%);
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.text-content h3 {
    font-size: 1.5rem;
    margin-bottom: 1.2rem;
    color: var(--neon-mint);
}

.text-content p {
    margin-bottom: 1.2rem;
    font-size: 1.05rem;
    line-height: 1.75;
    color: var(--text);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.feature-list i {
    color: var(--neon-cyan);
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
    filter: drop-shadow(0 0 4px rgba(0, 240, 255, 0.4));
}

/* Holographic Visual */
.hologram-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 350px;
    perspective: 1000px;
}

.holo-stack {
    position: relative;
    width: 180px;
    height: 220px;
    transform-style: preserve-3d;
    animation: float 6s ease-in-out infinite;
}

.h-box {
    position: absolute;
    left: 50%;
    width: 140px;
    height: 50px;
    border: 1px solid rgba(0, 240, 255, 0.5);
    background: rgba(0, 240, 255, 0.04);
    box-shadow: 0 0 15px rgba(0, 240, 255, 0.1), inset 0 0 10px rgba(0, 240, 255, 0.05);
    transform: translateX(-50%) rotateX(60deg) rotateZ(-25deg);
    transform-origin: center center;
}

.h-box-1 { top: 0; animation: floatAlt 5s ease-in-out infinite 0s; }
.h-box-2 { top: 45px; animation: floatAlt 5s ease-in-out infinite 0.4s; }
.h-box-3 { top: 90px; animation: floatAlt 5s ease-in-out infinite 0.8s; }
.h-box-4 { top: 135px; animation: floatAlt 5s ease-in-out infinite 1.2s; }

.hologram-base {
    position: absolute;
    bottom: 20px;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(30px);
    animation: pulseGlow 4s ease-in-out infinite;
    z-index: -1;
}

/* ========================
   8. PROGRAMME
   ======================== */
.programme {
    background: var(--bg-body);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.prog-card {
    text-align: center;
    padding: 2.5rem 1.8rem;
}

.prog-card .card-icon {
    font-size: 2.5rem;
    color: var(--neon-cyan);
    margin-bottom: 1.5rem;
    filter: drop-shadow(0 0 6px rgba(0, 240, 255, 0.4));
    transition: transform 0.4s ease;
    display: inline-block;
}

.prog-card:hover .card-icon {
    transform: scale(1.15) rotate(-6deg);
}

.prog-card h3 {
    font-size: 1.15rem;
    margin-bottom: 1rem;
    color: var(--heading);
}

.prog-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 0;
}

/* ========================
   9. PORT LAB
   ======================== */
.port-lab {
    background: linear-gradient(180deg, #081325 0%, var(--bg-body) 100%);
}

.port-lab .section-header p {
    color: var(--text-muted);
    margin-top: 0.5rem;
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.lab-item {
    position: relative;
    height: 240px;
    border-radius: 12px;
    overflow: hidden;
    background: linear-gradient(135deg, rgba(10,25,47,0.9), rgba(17,34,64,0.85));
    border: 1px solid rgba(0, 240, 255, 0.1);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1),
                border-color 0.4s,
                box-shadow 0.4s;
}

.lab-item:hover,
.lab-item:focus-visible {
    transform: scale(1.03) translateY(-6px);
    border-color: rgba(0, 240, 255, 0.5);
    box-shadow: 0 20px 50px rgba(0, 240, 255, 0.15);
    outline: none;
}

.lab-glow {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: linear-gradient(
        110deg,
        transparent 40%,
        rgba(0, 240, 255, 0.08) 50%,
        transparent 60%
    );
    background-size: 200% 100%;
    animation: sheen 3.5s linear infinite;
    opacity: 0;
    transition: opacity 0.4s;
}

.lab-item:hover .lab-glow,
.lab-item:focus-visible .lab-glow {
    opacity: 1;
}

.lab-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3.5rem;
    color: rgba(0, 240, 255, 0.12);
    transition: color 0.4s, filter 0.4s;
    z-index: 2;
}

.lab-item:hover .lab-icon,
.lab-item:focus-visible .lab-icon {
    color: rgba(0, 240, 255, 0.5);
    filter: drop-shadow(0 0 10px rgba(0, 240, 255, 0.3));
}

.lab-title {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: 1.1rem 1.5rem;
    background: rgba(2, 12, 27, 0.93);
    border-top: 1px solid var(--neon-cyan);
    font-family: var(--font-display);
    color: var(--neon-cyan);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 3;
}

.lab-title::after {
    content: '\f054';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    font-size: 0.75rem;
    transition: transform 0.3s;
}

.lab-item:hover .lab-title::after,
.lab-item:focus-visible .lab-title::after {
    transform: translateX(4px);
}

/* ========================
   10. KONTAKT
   ======================== */
.kontakt {
    background: var(--bg-body);
}

.kontakt-grid {
    display: grid;
    grid-template-columns: 1fr 1.3fr;
    gap: 3rem;
    align-items: start;
}

.kontakt-info {
    display: flex;
    flex-direction: column;
    gap: 1.8rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1.2rem;
    font-size: 1rem;
}

.info-item i {
    color: var(--neon-cyan);
    font-size: 1.3rem;
    margin-top: 0.15rem;
    width: 24px;
    text-align: center;
    filter: drop-shadow(0 0 5px rgba(0, 240, 255, 0.3));
}

.info-item h4 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--neon-mint);
    margin-bottom: 0.25rem;
}

.info-item a {
    color: var(--text);
    font-weight: 500;
}

.info-item a:hover {
    color: var(--neon-mint);
    text-shadow: 0 0 8px rgba(100, 255, 218, 0.25);
}

.kontakt-form {
    padding: 2.5rem;
}

.form-group {
    margin-bottom: 1.6rem;
}

.form-group:last-of-type {
    margin-bottom: 2.2rem;
}

.form-group label {
    display: block;
    font-family: var(--font-display);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--neon-mint);
    margin-bottom: 0.6rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 0.9rem 1.1rem;
    background: rgba(10, 25, 47, 0.5);
    border: 1px solid rgba(0, 240, 255, 0.2);
    border-radius: 6px;
    color: var(--heading);
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--neon-cyan);
    box-shadow: 0 0 18px rgba(0, 240, 255, 0.12);
}

.form-group textarea {
    min-height: 140px;
    resize: vertical;
}

/* ========================
   11. FOOTER
   ======================== */
footer {
    text-align: center;
    padding: 2.5rem 1rem;
    border-top: 1px solid rgba(0, 240, 255, 0.08);
    color: var(--text-muted);
    font-size: 0.9rem;
    background: linear-gradient(180deg, var(--bg-body) 0%, #010508 100%);
}

/* ========================
   12. KEYFRAMES & ANIMATIONS
   ======================== */
@keyframes pulseGlow {
    0%, 100% {
        opacity: 0.6;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

@keyframes sheen {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

@keyframes floatAlt {
    0%, 100% {
        transform: translateX(-50%) rotateX(60deg) rotateZ(-25deg) translateY(0);
    }
    50% {
        transform: translateX(-50%) rotateX(60deg) rotateZ(-25deg) translateY(-8px);
    }
}

/* ========================
   13. SCROLL-REVEAL UTILITIES
   ======================== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(45px);
    transition: opacity 0.9s ease, transform 0.9s ease;
    will-change: opacity, transform;
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered children delays for grids */
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ========================
   14. RESPONSIVE DESIGN
   ======================== */
@media (max-width: 1024px) {
    .grid-2 {
        gap: 3rem;
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: block;
        z-index: 1001;
    }

    .main-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(75vw, 320px);
        height: 100vh;
        background: rgba(2, 12, 27, 0.98);
        backdrop-filter: blur(20px);
        border-left: 1px solid var(--neon-cyan);
        transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 999;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .main-nav.active {
        right: 0;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.5);
    }

    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 3rem;
    }

    .main-nav a {
        font-size: 0.95rem;
    }

    .grid-2,
    .kontakt-grid {
        grid-template-columns: 1fr;
    }

    .hologram-visual {
        order: -1;
        min-height: 250px;
        margin-bottom: 1rem;
    }

    .section {
        padding: 5rem 0;
    }

    .glass-card {
        padding: 1.8rem;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 15px;
    }

    .hero {
        min-height: auto;
        padding: 10rem 0 6rem;
    }

    .eyebrow {
        font-size: 0.75rem;
    }

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

    .grid-4 {
        grid-template-columns: 1fr;
    }

    .logo {
        font-size: 1.15rem;
    }

    .kontakt-grid {
        gap: 2rem;
    }

    .kontakt-form {
        padding: 1.5rem;
    }
}