/* ===== Snewco.AI — Global Styles ===== */
/* Dark Silicon-Valley aesthetic: charcoal bg, white type, cyan accents */

:root {
  --bg-primary: #0a0a0a;
  --bg-secondary: #111111;
  --bg-card: #1a1a1a;
  --bg-card-hover: #222222;
  --text-primary: #f0f0f0;
  --text-secondary: #a0a0a0;
  --text-muted: #666666;
  --accent: #00d4ff;
  --accent-dim: rgba(0, 212, 255, 0.15);
  --accent-glow: rgba(0, 212, 255, 0.3);
  --border: #2a2a2a;
  --gradient-hero: linear-gradient(135deg, #0a0a0a 0%, #1a1a2e 50%, #0a0a0a 100%);
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; transition: opacity var(--transition); }
a:hover { opacity: 0.8; }

img { max-width: 100%; height: auto; }

/* ── Container ── */
.container { width: 90%; max-width: var(--max-width); margin: 0 auto; }

/* ── Navigation ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}

.navbar .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em;
  color: var(--text-primary);
}
.logo span { color: var(--accent); }

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--text-secondary); font-size: 0.9rem; font-weight: 500;
  letter-spacing: 0.02em; transition: color var(--transition);
  text-transform: uppercase;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); opacity: 1; }

.nav-cta {
  padding: 0.55rem 1.4rem; border-radius: 6px; font-size: 0.85rem; font-weight: 600;
  background: var(--accent); color: #000; border: none; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
  color: #000; opacity: 1;
}

/* Mobile hamburger */
.hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; background: none; border: none; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text-primary); transition: var(--transition); }

/* ── Hero Section ── */
.hero {
  min-height: 100vh; display: flex; align-items: center; justify-content: center;
  background: var(--gradient-hero);
  position: relative; overflow: hidden;
  padding-top: 72px;
}

.hero::before {
  content: ''; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 600px 400px at 20% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 70%),
    radial-gradient(ellipse 500px 500px at 80% 30%, rgba(0, 100, 255, 0.04) 0%, transparent 70%);
  pointer-events: none;
}

/* Animated grid background */
.hero-grid {
  position: absolute; inset: 0; overflow: hidden; pointer-events: none; opacity: 0.08;
}
.hero-grid::before {
  content: '';
  position: absolute; inset: -50%;
  background-image:
    linear-gradient(var(--accent) 1px, transparent 1px),
    linear-gradient(90deg, var(--accent) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}
@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-content {
  text-align: center; position: relative; z-index: 2;
  max-width: 820px; padding: 0 1rem;
}

.hero-badge {
  display: inline-block; padding: 0.4rem 1.2rem; border-radius: 50px;
  background: var(--accent-dim); color: var(--accent);
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 1.5rem;
  border: 1px solid rgba(0, 212, 255, 0.2);
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 800;
  line-height: 1.1; letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem; color: var(--text-secondary);
  max-width: 600px; margin: 0 auto 2rem;
  line-height: 1.7;
}

.hero-buttons { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

.btn-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 2rem; border-radius: 8px;
  background: var(--accent); color: #000;
  font-weight: 600; font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition);
  border: none; cursor: pointer;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
  color: #000; opacity: 1;
}

.btn-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.75rem 2rem; border-radius: 8px;
  background: transparent; color: var(--text-primary);
  font-weight: 600; font-size: 0.95rem;
  border: 1px solid var(--border);
  transition: border-color var(--transition), background var(--transition);
  cursor: pointer;
}
.btn-secondary:hover { border-color: var(--accent); background: var(--accent-dim); opacity: 1; }

/* ── Section Defaults ── */
section { padding: 6rem 0; }

.section-label {
  display: inline-block; color: var(--accent); font-size: 0.8rem;
  font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 700; letter-spacing: -0.02em; margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.05rem; color: var(--text-secondary);
  max-width: 600px; line-height: 1.7;
}

.section-header { text-align: center; margin-bottom: 4rem; }
.section-header .section-subtitle { margin: 0 auto; }

/* ── Cards Grid ── */
.cards-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
  padding: 2rem; transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 212, 255, 0.3);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
}

.card-icon {
  width: 48px; height: 48px; border-radius: 10px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  margin-bottom: 1.2rem; font-size: 1.3rem;
}

.card h3 {
  font-size: 1.15rem; font-weight: 600; margin-bottom: 0.6rem;
}

.card p { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.6; }

/* ── Stats Row ── */
.stats-row {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem; padding: 3rem 0;
}

.stat { text-align: center; }
.stat-number {
  font-size: 2.8rem; font-weight: 800; letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label { font-size: 0.9rem; color: var(--text-secondary); margin-top: 0.3rem; }

/* ── Architecture Diagram ── */
.architecture {
  background: var(--bg-secondary); border: 1px solid var(--border); border-radius: 16px;
  padding: 3rem; margin-top: 3rem;
}

.arch-layers { display: flex; flex-direction: column; gap: 1.5rem; }

.arch-layer {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px;
  padding: 1.5rem 2rem; display: flex; align-items: center; gap: 1.5rem;
  transition: border-color var(--transition);
}
.arch-layer:hover { border-color: rgba(0, 212, 255, 0.3); }

.arch-layer-badge {
  padding: 0.35rem 1rem; border-radius: 6px; font-size: 0.75rem;
  font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase;
  white-space: nowrap;
}
.arch-layer-badge.agent { background: rgba(0, 212, 255, 0.15); color: var(--accent); }
.arch-layer-badge.model { background: rgba(124, 58, 237, 0.15); color: #a78bfa; }
.arch-layer-badge.data { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }

.arch-layer-content h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.25rem; }
.arch-layer-content p { font-size: 0.88rem; color: var(--text-secondary); }

/* ── Value Props ── */
.value-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.value-item {
  display: flex; gap: 1rem; align-items: flex-start;
  padding: 1.5rem; border-radius: 12px;
  background: var(--bg-card); border: 1px solid var(--border);
  transition: border-color var(--transition);
}
.value-item:hover { border-color: rgba(0, 212, 255, 0.3); }

.value-icon {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 8px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
}

.value-text h4 { font-size: 1rem; font-weight: 600; margin-bottom: 0.3rem; }
.value-text p { font-size: 0.88rem; color: var(--text-secondary); line-height: 1.6; }

/* ── About Page ── */
.about-hero {
  padding-top: calc(72px + 4rem); padding-bottom: 4rem;
  background: var(--gradient-hero); position: relative;
}

.about-content { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-content.reverse { direction: rtl; }
.about-content.reverse > * { direction: ltr; }

.about-text .section-label { margin-bottom: 0.5rem; }
.about-text .section-title { margin-bottom: 1rem; }
.about-text p { color: var(--text-secondary); line-height: 1.8; margin-bottom: 1rem; }

.about-visual {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
  padding: 2.5rem; text-align: center;
  position: relative; overflow: hidden;
}
.about-visual::before {
  content: ''; position: absolute; top: -50%; left: -50%; width: 200%; height: 200%;
  background: radial-gradient(circle at center, var(--accent-dim) 0%, transparent 50%);
  pointer-events: none;
}

.about-visual-icon { font-size: 4rem; margin-bottom: 1rem; position: relative; z-index: 1; }
.about-visual-text {
  font-size: 1.1rem; font-weight: 600; position: relative; z-index: 1;
  color: var(--text-primary);
}

/* ── Timeline ── */
.timeline { position: relative; padding: 2rem 0; }
.timeline::before {
  content: ''; position: absolute; left: 50%; top: 0; bottom: 0;
  width: 2px; background: var(--border); transform: translateX(-50%);
}

.timeline-item {
  display: flex; align-items: center; margin-bottom: 3rem;
  position: relative;
}
.timeline-item:nth-child(odd) { flex-direction: row; }
.timeline-item:nth-child(even) { flex-direction: row-reverse; }

.timeline-content {
  width: 45%; padding: 1.5rem; background: var(--bg-card);
  border: 1px solid var(--border); border-radius: 12px;
}
.timeline-dot {
  position: absolute; left: 50%; transform: translateX(-50%);
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--accent); border: 3px solid var(--bg-primary);
  z-index: 2;
}

.timeline-content h4 { font-size: 1rem; font-weight: 600; color: var(--accent); margin-bottom: 0.3rem; }
.timeline-content p { font-size: 0.88rem; color: var(--text-secondary); }

/* ── Contact Form ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }

.contact-info h3 { font-size: 1.3rem; font-weight: 600; margin-bottom: 1rem; }
.contact-info p { color: var(--text-secondary); line-height: 1.7; margin-bottom: 2rem; }

.contact-detail {
  display: flex; align-items: center; gap: 1rem; margin-bottom: 1.2rem;
}
.contact-detail-icon {
  width: 40px; height: 40px; border-radius: 8px;
  background: var(--accent-dim); display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.contact-detail-text { font-size: 0.92rem; color: var(--text-secondary); }
.contact-detail-text strong { display: block; color: var(--text-primary); font-weight: 600; }

.contact-form {
  background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px;
  padding: 2.5rem;
}

.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block; font-size: 0.85rem; font-weight: 600;
  margin-bottom: 0.5rem; color: var(--text-secondary);
  text-transform: uppercase; letter-spacing: 0.05em;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%; padding: 0.8rem 1rem; border-radius: 8px;
  background: var(--bg-primary); border: 1px solid var(--border);
  color: var(--text-primary); font-family: var(--font-body); font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

.btn-submit {
  width: 100%; padding: 0.85rem; border-radius: 8px;
  background: var(--accent); color: #000; border: none;
  font-weight: 700; font-size: 0.95rem; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition);
}
.btn-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border); padding: 3rem 0;
  background: var(--bg-secondary);
}
.footer-content {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
}
.footer-text { font-size: 0.85rem; color: var(--text-muted); }
.footer-links { display: flex; gap: 2rem; }
.footer-links a { color: var(--text-muted); font-size: 0.85rem; transition: color var(--transition); }
.footer-links a:hover { color: var(--text-primary); }

/* ── Scroll Animations ── */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.fade-in {
  opacity: 0;
  transition: opacity 0.7s ease-out;
}
.fade-in.visible { opacity: 1; }

.slide-left {
  opacity: 0; transform: translateX(-40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.slide-left.visible { opacity: 1; transform: translateX(0); }

.slide-right {
  opacity: 0; transform: translateX(40px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.slide-right.visible { opacity: 1; transform: translateX(0); }

/* Stagger children */
.stagger > *:nth-child(1) { transition-delay: 0s; }
.stagger > *:nth-child(2) { transition-delay: 0.1s; }
.stagger > *:nth-child(3) { transition-delay: 0.2s; }
.stagger > *:nth-child(4) { transition-delay: 0.3s; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .nav-links.open {
    display: flex; flex-direction: column; position: absolute;
    top: 72px; left: 0; right: 0; background: rgba(10, 10, 10, 0.97);
    padding: 1.5rem; gap: 1rem; border-bottom: 1px solid var(--border);
  }

  .hero h1 { font-size: 2rem; }
  .about-content, .about-content.reverse { grid-template-columns: 1fr; direction: ltr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .timeline::before { left: 20px; }
  .timeline-item, .timeline-item:nth-child(even) { flex-direction: row; }
  .timeline-dot { left: 20px; }
  .timeline-content { width: calc(100% - 50px); margin-left: 50px; }

  .arch-layer { flex-direction: column; align-items: flex-start; }

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