:root {
    --bg-color: #050505;
    --bg-gradient: radial-gradient(circle at 50% 0%, #1a1a2e 0%, #050505 50%);
    --card-bg: rgba(20, 20, 25, 0.4);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent-blue: #4A9EFF;
    --accent-purple: #8B5CF6;
    --accent-glow: rgba(74, 158, 255, 0.2);
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --font-main: 'Montserrat', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-title: 'Syne', sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-slow: 0.6s cubic-bezier(0.25, 1, 0.5, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--bg-color);
    background-image: var(--bg-gradient);
    color: var(--text-primary);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Noise overlay for premium texture */
body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 9999;
}

/* Background Grid */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: 40px 40px;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    z-index: -2;
    mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, transparent 80%);
}

/* Ambient light orbs */
.glow-container {
    position: fixed;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    transition: transform 1s ease-out;
}

.orb-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-blue), transparent 70%);
    top: -200px;
    left: -200px;
}

.orb-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-purple), transparent 70%);
    bottom: -100px;
    right: -100px;
}

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-title);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, var(--accent-blue) 50%, var(--accent-purple) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    font-weight: 400;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    position: relative;
    z-index: 10;
}

/* Premium Header */
.main-header {
    position: fixed;
    top: 2rem;
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 4rem);
    max-width: 1200px;
    background: rgba(10, 10, 12, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--card-border);
    padding: 0.5rem 1.5rem;
    border-radius: 5px;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    transition: var(--transition-slow);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.pixel-logo-img {
    height: 15px;
    width: auto;
    display: block;
    image-rendering: pixelated;
    /* Conserve l'aspect pixel art si nécessaire */
}

.header-logo {
    font-family: var(--font-title);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.8rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.mobile-menu-toggle:hover {
    color: var(--accent-blue);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

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

.header-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: var(--transition-fast);
}

.header-nav a:hover,
.header-nav a.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.1);
}

/* Sections */
section {
    padding: 10rem 0;
    position: relative;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding-top: 5rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(74, 158, 255, 0.1);
    border: 1px solid rgba(74, 158, 255, 0.2);
    border-radius: 5px;
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 2rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 600;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent-blue);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent-blue);
    animation: blink 2s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.4;
    }
}

.hero h1 {
    font-size: clamp(3rem, 7vw, 6.5rem);
    margin-bottom: 1.5rem;
    max-width: 900px;
    text-wrap: balance;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.25rem);
    max-width: 650px;
    margin: 0 auto 3rem auto;
    text-wrap: balance;
}

/* Premium Button */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 2.5rem;
    border-radius: 5px;
    font-weight: 600;
    font-family: var(--font-main);
    text-decoration: none;
    transition: var(--transition-slow);
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 1.05rem;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-color);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.2);
}

.btn-outline {
    background: transparent;
    color: var(--text-primary);
    border-color: var(--card-border);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Expertise Cards (Glassmorphism & Border Gradient) */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 4rem;
}

.card {
    position: relative;
    background: var(--card-bg);
    padding: 3rem 2.5rem;
    border-radius: 12px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--card-border);
    transition: var(--transition-slow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Magnetic border glow effect via JS */
.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    padding: 2px;
    background: radial-gradient(800px circle at var(--mouse-x, 0) var(--mouse-y, 0), rgba(255, 255, 255, 0.3), transparent 40%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity 0.5s;
    pointer-events: none;
}

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

.card:hover {
    transform: translateY(-5px);
    background: rgba(30, 30, 40, 0.6);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
    width: 48px;
    height: 48px;
    border-radius: 5px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--accent-blue);
}

.card h3 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

/* Contact Section */
.contact-box {
    background: linear-gradient(180deg, rgba(20, 20, 25, 0.4) 0%, rgba(10, 10, 12, 0.8) 100%);
    border: 1px solid var(--card-border);
    border-radius: 5px;
    padding: 6rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.contact-box::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent-blue), transparent);
}

/* Contact Form */
.contact-form {
    max-width: 500px;
    margin: 0 auto;
    text-align: left;
}

.form-group {
    margin-bottom: 1.5rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 5px;
    padding: 1rem 1.5rem;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-secondary);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent-blue);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 20px rgba(74, 158, 255, 0.15);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* Reveal Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    .main-header {
        top: 1rem;
        width: calc(100% - 2rem);
        padding: 0.75rem 1rem;
        flex-wrap: wrap;
    }

    .logo-container {
        gap: 0.4rem;
    }

    .header-logo {
        font-size: 1.1rem;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .header-right {
        position: absolute;
        top: calc(100% + 0.5rem);
        left: 0;
        width: 100%;
        background: rgba(10, 10, 12, 0.95);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 1.5rem;
        border: 1px solid var(--card-border);
        border-radius: 5px;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-10px);
        transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
        gap: 1.5rem;
    }

    .header-right.active {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .header-nav {
        flex-direction: column;
        width: 100%;
        gap: 0.5rem;
    }

    .header-nav a {
        padding: 0.75rem 1rem;
        font-size: 1rem;
        width: 100%;
    }

    .header-btn {
        width: 100%;
        padding: 1rem 0;
        margin: 0;
    }

    .btn-group {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin: 0 auto;
    }

    section {
        padding: 6rem 0;
    }

    .card {
        padding: 2.5rem 1.5rem;
    }

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

    .contact-box {
        padding: 3rem 1.5rem;
    }

    .hero h1 {
        font-size: clamp(2.2rem, 10vw, 3.5rem);
    }

    footer .container {
        flex-direction: column;
        gap: 1rem;
    }

    footer p {
        font-size: 0.75rem;
        /* Réduire la taille de la police */
        text-align: center;
    }
}