/* ============================================
   Volix Tech — Landing Page Styles
   ============================================ */

:root {
    --bg: #0a0a0b;
    --bg-card: #111113;
    --bg-card-hover: #18181b;
    --bg-section: #09090b;
    --border: #1e1e22;
    --border-hover: #2a2a30;
    --text: #fafafa;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent: #6366f1;
    --accent-light: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --green: #22c55e;
    --orange: #f97316;
    --cyan: #06b6d4;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 12px;
    --radius-lg: 20px;
}

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

html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }

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

/* Cursor glow */
.cursor-glow {
    position: fixed;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: opacity 0.3s;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; }
h3 { font-size: 1.15rem; font-weight: 700; letter-spacing: -0.01em; }

.text-gradient {
    background: linear-gradient(135deg, var(--accent-light), var(--cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-accent { color: var(--accent-light); }

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}
.btn-primary:hover {
    background: var(--accent-light);
    box-shadow: 0 0 40px rgba(99, 102, 241, 0.3);
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
}
.btn-outline:hover {
    color: var(--text);
    border-color: var(--border-hover);
    background: var(--bg-card);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--text);
    letter-spacing: -0.02em;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 900;
    font-size: 1rem;
    color: #fff;
}

.nav-links {
    display: flex;
    gap: 8px;
}
.nav-links a {
    padding: 8px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 8px;
    transition: all 0.2s;
}
.nav-links a:hover { color: var(--text); background: var(--bg-card); }

.nav-toggle { display: none; background: none; border: none; cursor: pointer; padding: 8px; }
.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-secondary);
    margin: 4px 0;
    transition: all 0.2s;
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 64px;
    overflow: hidden;
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.3;
    mask-image: radial-gradient(ellipse 80% 70% at 50% 30%, black 30%, transparent 100%);
}

.hero-content { position: relative; z-index: 1; padding: 80px 0; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    padding: 6px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 32px;
}

.hero-sub {
    font-size: 1.15rem;
    color: var(--text-secondary);
    max-width: 560px;
    margin-top: 24px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text);
    font-variant-numeric: tabular-nums;
    letter-spacing: -0.02em;
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 2px;
}

.hero-cta {
    display: flex;
    gap: 12px;
    margin-top: 48px;
}

/* Section */
.section { padding: 100px 0; }
.section-dark { background: var(--bg-section); }

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-light);
    background: var(--accent-glow);
    padding: 6px 14px;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    max-width: 520px;
    margin: 12px auto 0;
    font-size: 1.05rem;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 20px;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s;
    position: relative;
}
.project-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.project-featured {
    grid-column: 1 / -1;
    background: linear-gradient(135deg, var(--bg-card), rgba(99, 102, 241, 0.05));
    border-color: rgba(99, 102, 241, 0.2);
}

.project-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 4px 10px;
    border-radius: 6px;
    background: var(--accent-glow);
    color: var(--accent-light);
    margin-bottom: 16px;
}

.project-icon {
    width: 44px;
    height: 44px;
    background: var(--accent-glow);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
}
.project-icon svg { width: 22px; height: 22px; stroke: var(--accent-light); }

.project-card h3 { font-size: 1.3rem; margin-bottom: 6px; }
.project-client { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 12px; }
.project-desc { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; margin-bottom: 20px; }

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 16px;
}
.project-tech span {
    font-size: 0.72rem;
    font-family: var(--font-mono);
    padding: 4px 10px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-secondary);
}

.project-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-muted);
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* Expertise */
.expertise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 24px;
}

.expertise-group {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 28px;
}
.expertise-group h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 16px;
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill {
    font-size: 0.82rem;
    font-weight: 500;
    padding: 6px 14px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.2s;
}
.skill:hover { border-color: var(--accent); color: var(--text); }
.skill[data-level="expert"] { border-color: rgba(99, 102, 241, 0.3); color: var(--accent-light); }

/* Team */
.team-grid { display: flex; justify-content: center; }

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    max-width: 480px;
}

.team-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--cyan));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    color: #fff;
    margin: 0 auto 20px;
}

.team-role { font-size: 0.9rem; color: var(--accent-light); margin-bottom: 16px; font-weight: 500; }
.team-bio { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.team-links { margin-top: 20px; display: flex; justify-content: center; gap: 12px; }
.team-links a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    transition: all 0.2s;
}
.team-links a:hover { color: var(--text); border-color: var(--accent); }
.team-links svg { width: 18px; height: 18px; }

/* Clients */
.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 16px;
}
.client-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    text-align: center;
}
.client-card strong { display: block; font-size: 1rem; margin-bottom: 4px; }
.client-card span { font-size: 0.82rem; color: var(--text-muted); }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 20px;
    max-width: 900px;
    margin: 0 auto;
}
.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    transition: all 0.2s;
}
.contact-card:hover { border-color: var(--border-hover); transform: translateY(-2px); }
.contact-card svg { width: 28px; height: 28px; margin: 0 auto 16px; color: var(--accent-light); }
.contact-card h3 { margin-bottom: 8px; }
.contact-card a { color: var(--accent-light); text-decoration: none; font-size: 0.9rem; }
.contact-card a:hover { text-decoration: underline; }
.contact-card span { color: var(--text-secondary); font-size: 0.9rem; }

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
}
.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 1.1rem;
}
.footer p { font-size: 0.8rem; color: var(--text-muted); }

/* Animations */
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-content > * {
    animation: fadeUp 0.8s ease-out both;
}
.hero-content > *:nth-child(2) { animation-delay: 0.1s; }
.hero-content > *:nth-child(3) { animation-delay: 0.2s; }
.hero-content > *:nth-child(4) { animation-delay: 0.3s; }
.hero-content > *:nth-child(5) { animation-delay: 0.4s; }

/* Responsive */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: rgba(10, 10, 11, 0.95);
        backdrop-filter: blur(12px);
        border-bottom: 1px solid var(--border);
        padding: 16px;
    }
    .nav-toggle { display: block; }

    .hero-stats { gap: 24px; }
    .stat-value { font-size: 1.8rem; }
    .hero-cta { flex-direction: column; }

    .projects-grid { grid-template-columns: 1fr; }
    .project-featured { grid-column: 1; }
    .expertise-grid { grid-template-columns: 1fr; }
    .contact-grid { grid-template-columns: 1fr; }
    .clients-grid { grid-template-columns: 1fr 1fr; }

    .footer-inner { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
    .hero-stats { flex-direction: column; gap: 16px; }
    .clients-grid { grid-template-columns: 1fr; }
}