/* Reset et base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #ec4899;
    --accent: #8b5cf6;
    --background: #0f172a;
    --background-light: #1e293b;
    --text: #f8fafc;
    --text-secondary: #94a3b8;
    --card-bg: rgba(30, 41, 59, 0.8);
    --card-border: rgba(255, 255, 255, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --glow: 0 0 20px rgba(99, 102, 241, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --animation-speed: 1s;
}

[data-theme="light"] {
    --background: #f8fafc;
    --background-light: #e2e8f0;
    --text: #0f172a;
    --text-secondary: #475569;
    --card-bg: rgba(255, 255, 255, 0.8);
    --card-border: rgba(0, 0, 0, 0.1);
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    transition: var(--transition);
    line-height: 1.6;
}

/* Effets de fond */
.background-effects {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 500px;
    height: 500px;
    background: var(--primary);
    top: -200px;
    left: -200px;
    animation-delay: 0s;
}

.circle-2 {
    width: 600px;
    height: 600px;
    background: var(--secondary);
    bottom: -300px;
    right: -300px;
    animation-delay: -5s;
}

.circle-3 {
    width: 400px;
    height: 400px;
    background: var(--accent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -10s;
}

.grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.3;
    animation: gridMove 20s linear infinite;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    25% { transform: translate(50px, 50px); }
    50% { transform: translate(0, 100px); }
    75% { transform: translate(-50px, 50px); }
}

@keyframes gridMove {
    0% { background-position: 0 0; }
    100% { background-position: 50px 50px; }
}

/* Header */
.header {
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 10;
}

.glitch-container {
    position: relative;
}

.glitch {
    font-size: 4rem;
    font-weight: 700;
    text-transform: uppercase;
    position: relative;
    text-shadow: 0.05em 0 0 var(--primary), -0.03em -0.04em 0 var(--secondary),
                 0.025em 0.04em 0 var(--accent);
    animation: glitch 725ms infinite;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    left: 2px;
    text-shadow: -2px 0 var(--primary);
    clip: rect(44px, 450px, 56px, 0);
    animation: glitch-anim 5s infinite linear alternate-reverse;
}

.glitch::after {
    left: -2px;
    text-shadow: -2px 0 var(--secondary), 2px 2px 0 var(--accent);
    animation: glitch-anim2 1s infinite linear alternate-reverse;
}

@keyframes glitch {
    0% { text-shadow: 0.05em 0 0 var(--primary), -0.03em -0.04em 0 var(--secondary),
                      0.025em 0.04em 0 var(--accent); }
    15% { text-shadow: 0.05em 0 0 var(--primary), -0.03em -0.04em 0 var(--secondary),
                       0.025em 0.04em 0 var(--accent); }
    16% { text-shadow: -0.05em -0.025em 0 var(--primary), 0.025em 0.035em 0 var(--secondary),
                       -0.05em -0.05em 0 var(--accent); }
    49% { text-shadow: -0.05em -0.025em 0 var(--primary), 0.025em 0.035em 0 var(--secondary),
                       -0.05em -0.05em 0 var(--accent); }
    50% { text-shadow: 0.05em 0.035em 0 var(--primary), 0.03em 0 0 var(--secondary),
                       0 -0.04em 0 var(--accent); }
    99% { text-shadow: 0.05em 0.035em 0 var(--primary), 0.03em 0 0 var(--secondary),
                       0 -0.04em 0 var(--accent); }
    100% { text-shadow: -0.05em 0 0 var(--primary), -0.025em -0.04em 0 var(--secondary),
                        -0.04em -0.025em 0 var(--accent); }
}

@keyframes glitch-anim {
    0% { clip: rect(31px, 9999px, 94px, 0); transform: skew(0.85deg); }
    5% { clip: rect(70px, 9999px, 76px, 0); transform: skew(0.78deg); }
    10% { clip: rect(42px, 9999px, 44px, 0); transform: skew(0.3deg); }
    15% { clip: rect(24px, 9999px, 91px, 0); transform: skew(0.87deg); }
    20% { clip: rect(88px, 9999px, 98px, 0); transform: skew(0.74deg); }
    25% { clip: rect(6px, 9999px, 68px, 0); transform: skew(0.38deg); }
    30% { clip: rect(34px, 9999px, 93px, 0); transform: skew(0.73deg); }
    35% { clip: rect(47px, 9999px, 6px, 0); transform: skew(0.33deg); }
    40% { clip: rect(83px, 9999px, 46px, 0); transform: skew(0.7deg); }
    45% { clip: rect(95px, 9999px, 53px, 0); transform: skew(0.57deg); }
    50% { clip: rect(86px, 9999px, 39px, 0); transform: skew(0.85deg); }
    55% { clip: rect(48px, 9999px, 34px, 0); transform: skew(0.99deg); }
    60% { clip: rect(31px, 9999px, 89px, 0); transform: skew(0.21deg); }
    65% { clip: rect(47px, 9999px, 71px, 0); transform: skew(0.7deg); }
    70% { clip: rect(89px, 9999px, 95px, 0); transform: skew(0.32deg); }
    75% { clip: rect(67px, 9999px, 69px, 0); transform: skew(0.94deg); }
    80% { clip: rect(85px, 9999px, 86px, 0); transform: skew(0.83deg); }
    85% { clip: rect(66px, 9999px, 34px, 0); transform: skew(0.59deg); }
    90% { clip: rect(91px, 9999px, 40px, 0); transform: skew(0.97deg); }
    95% { clip: rect(95px, 9999px, 6px, 0); transform: skew(0.63deg); }
    100% { clip: rect(98px, 9999px, 81px, 0); transform: skew(0.75deg); }
}

@keyframes glitch-anim2 {
    0% { clip: rect(65px, 9999px, 114px, 0); transform: skew(0.85deg); }
    5% { clip: rect(43px, 9999px, 76px, 0); transform: skew(0.78deg); }
    10% { clip: rect(76px, 9999px, 44px, 0); transform: skew(0.3deg); }
    15% { clip: rect(87px, 9999px, 91px, 0); transform: skew(0.87deg); }
    20% { clip: rect(68px, 9999px, 98px, 0); transform: skew(0.74deg); }
    25% { clip: rect(88px, 9999px, 68px, 0); transform: skew(0.38deg); }
    30% { clip: rect(97px, 9999px, 93px, 0); transform: skew(0.73deg); }
    35% { clip: rect(12px, 9999px, 6px, 0); transform: skew(0.33deg); }
    40% { clip: rect(74px, 9999px, 46px, 0); transform: skew(0.7deg); }
    45% { clip: rect(80px, 9999px, 53px, 0); transform: skew(0.57deg); }
    50% { clip: rect(66px, 9999px, 39px, 0); transform: skew(0.85deg); }
    55% { clip: rect(84px, 9999px, 34px, 0); transform: skew(0.99deg); }
    60% { clip: rect(99px, 9999px, 89px, 0); transform: skew(0.21deg); }
    65% { clip: rect(52px, 9999px, 71px, 0); transform: skew(0.7deg); }
    70% { clip: rect(56px, 9999px, 95px, 0); transform: skew(0.32deg); }
    75% { clip: rect(58px, 9999px, 69px, 0); transform: skew(0.94deg); }
    80% { clip: rect(75px, 9999px, 86px, 0); transform: skew(0.83deg); }
    85% { clip: rect(33px, 9999px, 34px, 0); transform: skew(0.59deg); }
    90% { clip: rect(98px, 9999px, 40px, 0); transform: skew(0.97deg); }
    95% { clip: rect(99px, 9999px, 6px, 0); transform: skew(0.63deg); }
    100% { clip: rect(54px, 9999px, 81px, 0); transform: skew(0.75deg); }
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s ease forwards 0.5s;
}

.header-controls {
    display: flex;
    gap: 1rem;
}

.theme-toggle, .sound-toggle {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text);
    padding: 0.75rem;
    border-radius: 50%;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover, .sound-toggle:hover {
    transform: translateY(-2px);
    box-shadow: var(--glow);
}

/* Cartes 3D */
.cards-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.card {
    perspective: 1000px;
    height: 400px;
    cursor: pointer;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transition: transform 0.8s;
    transform-style: preserve-3d;
    border-radius: 20px;
    box-shadow: var(--shadow);
}

.card:hover .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 20px;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.card-front {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
}

.card-back {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    transform: rotateY(180deg);
    color: white;
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.demo-btn {
    background: white;
    color: var(--primary);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 1rem;
}

.demo-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* Section interactive */
.interactive-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

.demo-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    backdrop-filter: blur(10px);
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
    transform: translateY(20px);
    opacity: 0;
    transition: var(--transition);
}

.demo-panel.active {
    transform: translateY(0);
    opacity: 1;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--card-border);
}

.panel-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.close-panel {
    background: none;
    border: none;
    color: var(--text);
    font-size: 2rem;
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.close-panel:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

.panel-content {
    padding: 2rem;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.placeholder {
    text-align: center;
    color: var(--text-secondary);
}

.placeholder p {
    font-size: 1.2rem;
}

/* Contrôles */
.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.slider-container, .checkbox-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
}

.slider-container label {
    display: block;
    margin-bottom: 1rem;
    font-weight: 500;
}

.slider-container input[type="range"] {
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--background-light);
    outline: none;
    -webkit-appearance: none;
}

.slider-container input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    transition: var(--transition);
}

.slider-container input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: var(--glow);
}

.checkbox-container label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
}

.checkbox-container input[type="checkbox"] {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    border: 2px solid var(--primary);
    appearance: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.checkbox-container input[type="checkbox"]:checked {
    background: var(--primary);
}

.checkbox-container input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-weight: bold;
}

/* Section technologies */
.advanced-demos {
    max-width: 1200px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.advanced-demos h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.tech-item {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.tech-item:hover {
    transform: translateY(-10px);
    box-shadow: var(--glow);
}

.tech-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: inline-block;
    animation: float 3s ease-in-out infinite;
}

.tech-item h4 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.tech-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer {
    text-align: center;
    padding: 3rem 2rem;
    margin-top: 2rem;
    border-top: 1px solid var(--card-border);
}

.typing-container {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    min-height: 2rem;
}

.cursor {
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.social-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

.social-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

.social-link:hover {
    color: var(--primary);
}

.social-link:hover::after {
    width: 100%;
}

/* Canvas particules */
.particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .glitch {
        font-size: 3rem;
    }

    .cards-container {
        grid-template-columns: 1fr;
    }

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

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

    .advanced-demos h2 {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .glitch {
        font-size: 2.5rem;
    }

    .card {
        height: 350px;
    }

    .card-front, .card-back {
        padding: 1.5rem;
    }

    .card h3 {
        font-size: 1.5rem;
    }
}

/* Effets de survol avancés */
.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 20px;
    background: linear-gradient(45deg, var(--primary), var(--accent));
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover::before {
    opacity: 0.3;
}

/* Effet de parallaxe */
.parallax {
    transform-style: preserve-3d;
    transform: translateZ(0);
}

.parallax-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    transition: transform 0.1s ease-out;
}

/* Effet de lumière sur les cartes */
.card::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0) 70%);
    transform: rotate(30deg);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card:hover::after {
    opacity: 1;
}

/* Effet de vague */
.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100px;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 320'%3E%3Cpath fill='%236366f1' fill-opacity='0.1' d='M0,192L48,197.3C96,203,192,213,288,229.3C384,245,480,267,576,250.7C672,235,768,181,864,181.3C960,181,1056,235,1152,234.7C1248,235,1344,181,1392,154.7L1440,128L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z'%3E%3C/path%3E%3C/svg%3E");
    background-size: 1440px 100px;
    animation: wave 20s linear infinite;
    z-index: -1;
    opacity: 0.3;
}

@keyframes wave {
    0% { background-position-x: 0; }
    100% { background-position-x: 1440px; }
}