/* ============================================
   IA-FORGE - Modern Dark Theme Stylesheet
   ============================================ */

/* Variables CSS */
:root {
    /* Couleurs principales */
    --bg-primary: #0a0a0d;
    --bg-secondary: #111114;
    --bg-tertiary: #1a1a1e;
    --bg-card: rgba(26, 26, 30, 0.7);

    /* Accents - Gris brossé métallique */
    --accent-primary: #9a9aa5;
    --accent-secondary: #7a7a85;
    --accent-glow: rgba(180, 180, 190, 0.2);
    --accent-gradient: linear-gradient(135deg, #c0c0c8 0%, #8a8a95 25%, #6a6a75 50%, #8a8a95 75%, #c0c0c8 100%);
    --metal-shine: linear-gradient(135deg, #d0d0d8 0%, #a0a0a8 20%, #707078 50%, #a0a0a8 80%, #d0d0d8 100%);

    /* Texte */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;

    /* Bordures */
    --border-color: rgba(255, 255, 255, 0.1);
    --border-hover: rgba(180, 180, 190, 0.4);

    /* Ombres */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px rgba(180, 180, 190, 0.15);

    /* Typographie */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Espacements */
    --section-padding: 120px;
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Reset & Base */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

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

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

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* Gradient Text */
.gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Section Tag */
.section-tag {
    display: inline-block;
    padding: 8px 16px;
    background: rgba(160, 160, 170, 0.1);
    border: 1px solid rgba(160, 160, 170, 0.25);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: #b0b0b8;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

/* Section Header */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ============================================
   Navigation
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(10, 10, 13, 0.95);
    backdrop-filter: blur(20px);
    padding: 10px 0;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.nav-logo img {
    width: 80px;
    height: 80px;
    border-radius: 12px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-link {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-primary);
    transition: width var(--transition-fast);
}

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

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

.nav-cta {
    padding: 10px 24px;
    background: var(--accent-gradient);
    border-radius: 50px;
    color: var(--text-primary) !important;
}

.nav-cta::after {
    display: none;
}

.nav-cta:hover {
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 5px;
}

.hamburger span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 24px 60px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    max-width: 700px;
    text-align: center;
    z-index: 2;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: #c0c0c8;
    border-radius: 50%;
    animation: pulse 2s infinite;
    box-shadow: 0 0 8px rgba(192, 192, 200, 0.5);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.15rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 40px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: var(--bg-primary);
    font-weight: 700;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-primary:hover {
    box-shadow: 0 6px 30px rgba(180, 180, 190, 0.3);
    transform: translateY(-3px);
    background: var(--metal-shine);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-hover);
}

.btn-full {
    width: 100%;
    justify-content: center;
}

/* Hero Background Image */
.hero {
    background-image:
        linear-gradient(to bottom,
            rgba(10, 10, 13, 0.4) 0%,
            rgba(10, 10, 13, 0.6) 40%,
            rgba(10, 10, 13, 0.95) 100%),
        url('ia_forge_logo_1.webp');
    background-size: cover;
    background-position: center top;
    background-repeat: no-repeat;
}

/* Image mobile du hero (cachée sur desktop) */
.hero-image-mobile {
    display: none !important;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

.mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--text-muted);
    border-radius: 12px;
    position: relative;
}

.wheel {
    width: 4px;
    height: 8px;
    background: var(--text-muted);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateX(-50%) translateY(0); }
    50% { transform: translateX(-50%) translateY(10px); }
}

@keyframes scroll {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 18px; }
}

/* ============================================
   Services Section
   ============================================ */
.services {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 1;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.service-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 40px;
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(200, 200, 210, 0.6), transparent);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

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

.service-card.featured {
    background: linear-gradient(135deg, rgba(180, 180, 190, 0.1) 0%, rgba(100, 100, 110, 0.1) 100%);
    border-color: rgba(180, 180, 190, 0.3);
}

.service-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 14px;
    background: var(--accent-gradient);
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(145deg, #3a3a40 0%, #2a2a30 50%, #3a3a40 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 4px 12px rgba(0, 0, 0, 0.3);
}

.service-icon svg {
    width: 32px;
    height: 32px;
    stroke: #b0b0b8;
}

.service-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.service-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.service-features {
    list-style: none;
    margin-bottom: 24px;
}

.service-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 12px;
}

.service-features svg {
    flex-shrink: 0;
    margin-top: 2px;
    stroke: var(--accent-primary);
}

.service-link a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: gap var(--transition-fast);
}

.service-link a:hover {
    gap: 12px;
}

/* ============================================
   About Section
   ============================================ */
.about {
    padding: var(--section-padding) 0;
    background: var(--bg-secondary);
    position: relative;
    z-index: 1;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 40px;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.about-feature {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(145deg, #3a3a40 0%, #2a2a30 50%, #3a3a40 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: #b0b0b8;
}

.feature-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 6px;
}

.feature-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 32px;
    text-align: center;
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.stat-card:hover {
    border-color: var(--border-hover);
    transform: translateY(-4px);
}

.stat-number {
    font-size: 3rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-suffix {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.stat-label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--section-padding) 0;
    position: relative;
    z-index: 1;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: start;
}

.contact-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    line-height: 1.7;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-item {
    display: flex;
    gap: 16px;
    align-items: center;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(145deg, #3a3a40 0%, #2a2a30 50%, #3a3a40 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.contact-icon svg {
    width: 22px;
    height: 22px;
    stroke: #b0b0b8;
}

.contact-item h4 {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 4px;
}

.contact-item p {
    font-size: 1rem;
    color: var(--text-primary);
}

/* Contact Form */
.contact-form-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    padding: 48px;
    backdrop-filter: blur(10px);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    font-family: var(--font-main);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23a0a0b0' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
}

.form-group select option {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

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

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-secondary);
    padding: 60px 0 30px;
    border-top: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 20px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 700;
    font-size: 1.25rem;
}

.footer-brand img {
    width: 60px;
    height: 60px;
    border-radius: 12px;
}

.footer-text {
    color: var(--text-secondary);
    max-width: 400px;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid var(--border-color);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* ============================================
   Animations AOS (Animate On Scroll)
   ============================================ */
[data-aos] {
    opacity: 0;
    transition-property: opacity, transform;
    transition-duration: 0.8s;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-aos].aos-animate {
    opacity: 1;
}

[data-aos="fade-up"] {
    transform: translateY(40px);
}

[data-aos="fade-up"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-down"] {
    transform: translateY(-40px);
}

[data-aos="fade-down"].aos-animate {
    transform: translateY(0);
}

[data-aos="fade-right"] {
    transform: translateX(-40px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(40px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

/* Délais d'animation */
[data-aos-delay="100"] { transition-delay: 0.1s; }
[data-aos-delay="200"] { transition-delay: 0.2s; }
[data-aos-delay="300"] { transition-delay: 0.3s; }
[data-aos-delay="400"] { transition-delay: 0.4s; }

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-visual {
        opacity: 0.2;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 80px;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--bg-secondary);
        flex-direction: column;
        padding: 100px 40px;
        gap: 30px;
        transition: right var(--transition-normal);
        border-left: 1px solid var(--border-color);
    }

    .nav-menu.active {
        right: 0;
    }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .nav-logo {
        display: none;
    }

    .hero {
        padding: 60px 24px 40px;
        background-image: none;
        flex-direction: column;
        justify-content: flex-start;
        min-height: auto;
    }

    .hero-image-mobile {
        display: block !important;
        width: 100%;
        height: auto;
        border-radius: 0;
    }

    .hero-content {
        padding-top: 20px;
    }

    .hero-visual {
        display: none;
    }

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

    .about-grid,
    .contact-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

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

    .contact-form-container {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 16px;
    }
}

/* ============================================
   Utilitaires
   ============================================ */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}