/* ============================================
   NiyaInnovation - Site Vitrine CSS
   Design Moderne & Premium
   ============================================ */

:root {
    --primary: #6c5ce7;
    --primary-dark: #5a4bd1;
    --primary-light: #a29bfe;
    --secondary: #00cec9;
    --accent: #fd79a8;
    --dark: #0a0a1a;
    --dark-2: #12122a;
    --dark-3: #1a1a3e;
    --text: #e0e0ff;
    --text-muted: #8888aa;
    --white: #ffffff;
    --glass-bg: rgba(255,255,255,0.05);
    --glass-border: rgba(255,255,255,0.1);
    --gradient-primary: linear-gradient(135deg, #6c5ce7, #a29bfe);
    --gradient-accent: linear-gradient(135deg, #6c5ce7, #00cec9);
    --gradient-hero: linear-gradient(135deg, #0a0a1a 0%, #1a1a3e 50%, #12122a 100%);
    --shadow: 0 20px 60px rgba(0,0,0,0.3);
    --shadow-sm: 0 4px 15px rgba(0,0,0,0.2);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-full: 50px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
    font-family: var(--font);
    background: var(--dark);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
}

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* Preloader */
#preloader {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: var(--dark); z-index: 10000;
    display: flex; align-items: center; justify-content: center;
    transition: opacity 0.5s, visibility 0.5s;
}
#preloader.hidden { opacity: 0; visibility: hidden; }
.loader { position: relative; }
.loader-ring {
    width: 80px; height: 80px; border: 3px solid var(--glass-border);
    border-top-color: var(--primary); border-radius: 50%;
    animation: spin 1s linear infinite;
}
.loader-text {
    position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
    font-weight: 800; font-size: 14px; color: var(--primary);
    letter-spacing: 3px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Navbar */
.navbar {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 1000;
    padding: 20px 0; transition: var(--transition);
}
.navbar.scrolled {
    padding: 12px 0;
    background: rgba(10, 10, 26, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
}
.navbar .container { display: flex; align-items: center; justify-content: space-between; }
.nav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--white); }
.logo-icon {
    width: 40px; height: 40px; background: var(--gradient-primary);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    font-size: 18px;
}
.logo-text { font-size: 22px; font-weight: 800; letter-spacing: -0.5px; }
.logo-text .accent { color: var(--primary-light); }

.nav-menu {
    display: flex; list-style: none; gap: 8px;
}
.nav-link {
    color: var(--text-muted); text-decoration: none; font-size: 14px; font-weight: 500;
    padding: 8px 16px; border-radius: var(--radius-full); transition: var(--transition);
}
.nav-link:hover, .nav-link.active { color: var(--white); background: var(--glass-bg); }

.nav-actions { display: flex; align-items: center; gap: 12px; }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block; width: 24px; height: 2px; background: var(--white);
    margin: 5px 0; transition: var(--transition);
}

/* Buttons */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 28px; border-radius: var(--radius-full);
    font-family: var(--font); font-weight: 600; font-size: 14px;
    text-decoration: none; border: none; cursor: pointer;
    transition: var(--transition); white-space: nowrap;
}
.btn-primary {
    background: var(--gradient-primary); color: var(--white);
    box-shadow: 0 8px 30px rgba(108, 92, 231, 0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 40px rgba(108, 92, 231, 0.6); }
.btn-outline {
    background: transparent; color: var(--white);
    border: 1px solid var(--glass-border);
}
.btn-outline:hover { background: var(--glass-bg); border-color: var(--primary); }
.btn-glass { background: var(--glass-bg); color: var(--white); border: 1px solid var(--glass-border); }
.btn-glass:hover { background: rgba(255,255,255,0.1); }
.btn-sm { padding: 8px 20px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-full { width: 100%; justify-content: center; }

/* Hero */
.hero {
    min-height: 100vh; display: flex; align-items: center;
    position: relative; overflow: hidden; padding: 120px 0 80px;
}
.hero-bg { position: absolute; inset: 0; }
.hero-gradient {
    position: absolute; inset: 0;
    background: var(--gradient-hero);
}
.hero-particles {
    position: absolute; inset: 0; overflow: hidden;
}
.hero .container {
    position: relative; z-index: 2;
    display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 8px 20px; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius-full); font-size: 13px; font-weight: 500;
    color: var(--primary-light); margin-bottom: 24px;
}
.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem); font-weight: 900;
    line-height: 1.1; margin-bottom: 24px; letter-spacing: -1px;
}
.gradient-text {
    background: var(--gradient-accent);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-subtitle {
    font-size: 18px; color: var(--text-muted); margin-bottom: 40px;
    max-width: 540px; line-height: 1.8;
}
.hero-buttons { display: flex; gap: 16px; margin-bottom: 60px; flex-wrap: wrap; }

.hero-stats {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat-item { text-align: center; }
.stat-number {
    display: block; font-size: 2rem; font-weight: 900;
    background: var(--gradient-accent);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 1px; }

/* Code Window */
.code-window {
    background: var(--dark-2); border: 1px solid var(--glass-border);
    border-radius: var(--radius); overflow: hidden;
    box-shadow: var(--shadow); transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: var(--transition);
}
.code-window:hover { transform: perspective(1000px) rotateY(0) rotateX(0); }
.code-header {
    display: flex; align-items: center; gap: 8px;
    padding: 14px 20px; background: rgba(0,0,0,0.3);
    border-bottom: 1px solid var(--glass-border);
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28ca41; }
.code-title { margin-left: auto; font-size: 12px; color: var(--text-muted); font-family: var(--font-mono); }
.code-body { padding: 24px; font-family: var(--font-mono); font-size: 14px; line-height: 1.8; }
.code-body .kw { color: #c792ea; }
.code-body .fn { color: #82aaff; }
.code-body .str { color: #c3e88d; }
.code-body .prop { color: #f07178; }
.code-body .param { color: #ffcb6b; }

.hero-scroll {
    position: absolute; bottom: 30px; left: 50%;
    transform: translateX(-50%); animation: bounce 2s infinite;
}
.hero-scroll a { color: var(--text-muted); font-size: 20px; }
@keyframes bounce { 0%, 100% { transform: translateX(-50%) translateY(0); } 50% { transform: translateX(-50%) translateY(-10px); } }

/* Sections */
.section { padding: 100px 0; position: relative; }
.section-header { text-align: center; margin-bottom: 60px; }
.section-badge {
    display: inline-block; padding: 6px 20px;
    background: rgba(108, 92, 231, 0.1); border: 1px solid rgba(108, 92, 231, 0.3);
    border-radius: var(--radius-full); font-size: 13px; font-weight: 600;
    color: var(--primary-light); margin-bottom: 16px; text-transform: uppercase;
    letter-spacing: 2px;
}
.section-title {
    font-size: clamp(2rem, 4vw, 3rem); font-weight: 800;
    line-height: 1.2; margin-bottom: 16px; letter-spacing: -0.5px;
}
.section-subtitle { font-size: 17px; color: var(--text-muted); max-width: 600px; margin: 0 auto; }

/* Services */
.services { background: var(--dark-2); }
.services-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
}
.service-card {
    background: var(--dark); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 36px; position: relative;
    transition: var(--transition); overflow: hidden;
}
.service-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: var(--gradient-primary); opacity: 0; transition: var(--transition);
}
.service-card:hover { transform: translateY(-8px); border-color: var(--primary); }
.service-card:hover::before { opacity: 1; }
.service-card.featured { border-color: var(--primary); }
.service-badge {
    position: absolute; top: 16px; right: 16px;
    padding: 4px 12px; background: var(--gradient-primary);
    border-radius: var(--radius-full); font-size: 11px; font-weight: 700;
    color: var(--white); text-transform: uppercase; letter-spacing: 1px;
}
.service-icon {
    width: 60px; height: 60px; background: rgba(108, 92, 231, 0.1);
    border-radius: 16px; display: flex; align-items: center; justify-content: center;
    font-size: 24px; color: var(--primary-light); margin-bottom: 20px;
}
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 12px; }
.service-card p { color: var(--text-muted); font-size: 14px; margin-bottom: 20px; }
.service-features { list-style: none; margin-bottom: 24px; }
.service-features li {
    display: flex; align-items: center; gap: 8px;
    font-size: 13px; color: var(--text-muted); padding: 4px 0;
}
.service-features i { color: var(--secondary); font-size: 11px; }
.service-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--primary-light); font-size: 14px; font-weight: 600;
    text-decoration: none; transition: var(--transition);
}
.service-link:hover { gap: 12px; color: var(--white); }

/* Expertise Tech Grid */
.tech-grid {
    display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px;
    margin-bottom: 80px;
}
.tech-item {
    display: flex; flex-direction: column; align-items: center; gap: 8px;
    padding: 24px 16px; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); transition: var(--transition); cursor: default;
}
.tech-item:hover { border-color: var(--primary); transform: translateY(-4px); }
.tech-item i { font-size: 32px; color: var(--primary-light); }
.tech-item span { font-size: 12px; font-weight: 600; color: var(--text-muted); }

/* Process */
.process-title { text-align: center; font-size: 1.8rem; font-weight: 800; margin-bottom: 40px; }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step {
    text-align: center; padding: 32px 20px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); position: relative;
}
.step-number {
    font-size: 3rem; font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    margin-bottom: 12px;
}
.process-step h4 { font-size: 18px; margin-bottom: 8px; }
.process-step p { font-size: 14px; color: var(--text-muted); }

/* Portfolio */
.realisations { background: var(--dark-2); }
.portfolio-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
    grid-auto-rows: 250px;
}
.portfolio-item {
    position: relative; border-radius: var(--radius); overflow: hidden;
    cursor: pointer;
}
.portfolio-item.large { grid-column: span 2; }
.portfolio-image {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    transition: var(--transition);
}
.portfolio-overlay {
    position: absolute; inset: 0; background: rgba(10, 10, 26, 0.85);
    display: flex; flex-direction: column; justify-content: flex-end;
    padding: 32px; opacity: 0; transition: var(--transition);
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-item:hover .portfolio-image { transform: scale(1.1); }
.portfolio-cat {
    display: inline-block; padding: 4px 12px; background: var(--gradient-primary);
    border-radius: var(--radius-full); font-size: 11px; font-weight: 700;
    color: var(--white); margin-bottom: 8px; width: fit-content; text-transform: uppercase;
}
.portfolio-overlay h4 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.portfolio-overlay p { font-size: 14px; color: var(--text-muted); }

/* Team */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.team-card {
    text-align: center; padding: 40px 24px;
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); transition: var(--transition);
}
.team-card:hover { border-color: var(--primary); transform: translateY(-4px); }
.team-avatar {
    width: 80px; height: 80px; background: var(--gradient-primary);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    margin: 0 auto 16px; font-size: 32px; color: var(--white);
}
.team-card h4 { font-size: 18px; margin-bottom: 4px; }
.team-role { font-size: 13px; color: var(--primary-light); font-weight: 500; margin-bottom: 8px; }
.team-desc { font-size: 13px; color: var(--text-muted); }

/* Postuler / Careers */
.postuler { background: var(--dark-2); }
.careers-content { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.jobs-list { display: flex; flex-direction: column; gap: 16px; }
.job-card {
    display: flex; align-items: center; gap: 16px;
    padding: 20px; background: var(--dark); border: 1px solid var(--glass-border);
    border-radius: var(--radius); transition: var(--transition); cursor: pointer;
}
.job-card:hover { border-color: var(--primary); transform: translateX(8px); }
.job-icon {
    width: 50px; height: 50px; min-width: 50px;
    background: rgba(108, 92, 231, 0.1);
    border-radius: 12px; display: flex; align-items: center; justify-content: center;
    font-size: 20px; color: var(--primary-light);
}
.job-info h4 { font-size: 16px; margin-bottom: 6px; }
.job-meta { display: flex; gap: 16px; }
.job-meta span { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }

.apply-form-container {
    background: var(--dark); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 36px;
}
.apply-form-container h3 { font-size: 1.5rem; font-weight: 700; margin-bottom: 24px; }

/* Forms */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 16px; }
.form-group label {
    display: block; font-size: 13px; font-weight: 600;
    color: var(--text-muted); margin-bottom: 6px;
}
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 12px 16px;
    background: var(--dark-2); border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm); color: var(--white);
    font-family: var(--font); font-size: 14px;
    transition: var(--transition);
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.2);
}
.form-group select { cursor: pointer; }
.form-group textarea { resize: vertical; min-height: 100px; }
.file-input { padding: 10px !important; }

/* Contact */
.contact-content { display: grid; grid-template-columns: 1fr 2fr; gap: 40px; }
.contact-info { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
    padding: 24px; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); transition: var(--transition);
}
.contact-card:hover { border-color: var(--primary); }
.contact-icon {
    width: 40px; height: 40px; background: rgba(108, 92, 231, 0.1);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    font-size: 16px; color: var(--primary-light); margin-bottom: 12px;
}
.contact-card h4 { font-size: 15px; margin-bottom: 4px; }
.contact-card p { font-size: 14px; color: var(--text-muted); }

.contact-form {
    background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: var(--radius); padding: 36px;
}

/* Footer */
.footer {
    background: var(--dark-2); border-top: 1px solid var(--glass-border);
    padding: 60px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer-brand p { color: var(--text-muted); font-size: 14px; margin-top: 16px; line-height: 1.8; }
.footer-social { display: flex; gap: 12px; margin-top: 16px; }
.footer-social a {
    width: 40px; height: 40px; background: var(--glass-bg); border: 1px solid var(--glass-border);
    border-radius: 10px; display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); font-size: 16px; transition: var(--transition); text-decoration: none;
}
.footer-social a:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
.footer-links h4 { font-size: 16px; font-weight: 700; margin-bottom: 16px; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 8px; font-size: 14px; color: var(--text-muted); }
.footer-links a { color: var(--text-muted); text-decoration: none; transition: var(--transition); }
.footer-links a:hover { color: var(--primary-light); }
.footer-links i { margin-right: 8px; font-size: 12px; }
.footer-bottom {
    text-align: center; padding-top: 24px;
    border-top: 1px solid var(--glass-border);
    font-size: 13px; color: var(--text-muted);
}

/* Toast */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; }
.toast {
    padding: 16px 24px; border-radius: var(--radius-sm);
    color: var(--white); font-size: 14px; margin-top: 8px;
    animation: slideIn 0.3s ease, fadeOut 0.3s ease 3s forwards;
    max-width: 400px; box-shadow: var(--shadow);
}
.toast.success { background: #00b894; }
.toast.error { background: #d63031; }
.toast.info { background: var(--primary); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { to { opacity: 0; transform: translateY(20px); } }

/* Responsive */
@media (max-width: 1024px) {
    .hero .container { grid-template-columns: 1fr; }
    .hero-visual { display: none; }
    .services-grid { grid-template-columns: repeat(2, 1fr); }
    .tech-grid { grid-template-columns: repeat(4, 1fr); }
    .process-steps { grid-template-columns: repeat(2, 1fr); }
    .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
    .portfolio-item.large { grid-column: span 1; }
    .team-grid { grid-template-columns: repeat(2, 1fr); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed; top: 0; right: -100%; width: 280px; height: 100vh;
        background: var(--dark-2); flex-direction: column; padding: 80px 24px 24px;
        transition: var(--transition); border-left: 1px solid var(--glass-border);
    }
    .nav-menu.open { right: 0; }
    .nav-toggle { display: block; }
    .nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
    .nav-toggle.active span:nth-child(2) { opacity: 0; }
    .nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

    .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 16px; }
    .hero-buttons { flex-direction: column; }
    .services-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: repeat(3, 1fr); }
    .careers-content { grid-template-columns: 1fr; }
    .contact-content { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
    .team-grid { grid-template-columns: 1fr; }
    .portfolio-grid { grid-template-columns: 1fr; }
    .process-steps { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; }
    .hero-title { font-size: 2rem; }
    .section { padding: 60px 0; }
}