/* ============================================
   SIA TECHNOLOGY — Homepage Styles v0.1.0
   Built on SIA Design System tokens
   Part of the Shilpkar AI Ecosystem
   ============================================ */

/* Import Design Tokens */
@import url('/styles/tokens/design-tokens.css');

/* ============================================
   CSS CUSTOM PROPERTIES (CMS-Ready)
   ============================================ */
:root {
  /* Brand — inherited from SDS tokens, overridable */
  --siatek-bg: linear-gradient(135deg, #0a0a1a 0%, #0f172a 100%);
  --siatek-glow: radial-gradient(ellipse at 50% 0%, rgba(96, 165, 250, 0.12), transparent 70%);
  --siatek-accent-1: #60a5fa;
  --siatek-accent-2: #c084fc;
  --siatek-accent-3: #f472b6;
  --siatek-text: #e2e8f0;
  --siatek-text-muted: #94a3b8;
  --siatek-card-bg: rgba(255, 255, 255, 0.03);
  --siatek-card-border: rgba(96, 165, 250, 0.2);
  --siatek-card-hover-bg: rgba(96, 165, 250, 0.06);
  --siatek-card-hover-border: #60a5fa;
  --siatek-section-gap: 80px;
}

/* ============================================
   BASE
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--siatek-bg);
  color: var(--siatek-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ============================================
   NAVIGATION
   ============================================ */
.siatek-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 26, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(96, 165, 250, 0.1);
  transition: all 0.3s ease;
}

.siatek-nav.scrolled {
  background: rgba(10, 10, 26, 0.95);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.siatek-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.siatek-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.siatek-logo img {
  height: 36px;
  width: auto;
}

.siatek-logo-text {
  font-size: 1.2rem;
  font-weight: 700;
  color: #f1f5f9;
  letter-spacing: -0.5px;
}

.siatek-logo-text span {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.siatek-nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.siatek-nav-links a {
  color: var(--siatek-text-muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.siatek-nav-links a:hover,
.siatek-nav-links a.active {
  color: #f1f5f9;
  background: rgba(96, 165, 250, 0.1);
}

.siatek-nav-cta {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2));
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 24px !important;
  font-weight: 600 !important;
}

.siatek-nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* Mobile Nav Toggle */
.siatek-nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.siatek-nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--siatek-text);
  border-radius: 1px;
  transition: all 0.3s ease;
}

/* ============================================
   HERO
   ============================================ */
.siatek-hero {
  text-align: center;
  padding: 140px 24px 80px;
  background: var(--siatek-glow);
  position: relative;
  overflow: hidden;
}

/* Animated background dots */
.siatek-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 20% 30%, rgba(96, 165, 250, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 80% 60%, rgba(192, 132, 252, 0.06) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(244, 114, 182, 0.04) 0%, transparent 50%);
  animation: glowPulse 8s ease-in-out infinite;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

.siatek-hero-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  margin: 0 auto;
}

.siatek-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(96, 165, 250, 0.1);
  border: 1px solid rgba(96, 165, 250, 0.2);
  padding: 6px 16px;
  border-radius: 24px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--siatek-accent-1);
  margin-bottom: 24px;
}

.siatek-hero-badge .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.siatek-hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.siatek-hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2), var(--siatek-accent-3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.siatek-hero p {
  font-size: 1.15rem;
  color: var(--siatek-text-muted);
  max-width: 600px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

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

/* ============================================
   BUTTONS
   ============================================ */
.siatek-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 40px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.siatek-btn-primary {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2));
  color: #fff;
}

.siatek-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(96, 165, 250, 0.3);
}

.siatek-btn-outline {
  border: 1px solid rgba(96, 165, 250, 0.4);
  color: var(--siatek-accent-1);
  background: transparent;
}

.siatek-btn-outline:hover {
  background: rgba(96, 165, 250, 0.1);
  border-color: var(--siatek-accent-1);
}

.siatek-btn-sm {
  padding: 8px 20px;
  font-size: 0.85rem;
}

/* ============================================
   SECTIONS
   ============================================ */
.siatek-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

.siatek-section-header {
  text-align: center;
  margin-bottom: 56px;
}

.siatek-section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 12px;
  color: #f1f5f9;
}

.siatek-section-header h2 .gradient-text {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.siatek-section-header p {
  color: var(--siatek-text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ============================================
   GRID SYSTEMS
   ============================================ */
.siatek-grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 28px;
}

.siatek-grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  text-align: center;
}

/* ============================================
   CARDS
   ============================================ */
.siatek-card {
  background: var(--siatek-card-bg);
  border: 1px solid var(--siatek-card-border);
  border-radius: 24px;
  padding: 32px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.siatek-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(96, 165, 250, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

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

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

.siatek-card-icon {
  font-size: 2.2rem;
  margin-bottom: 20px;
  display: block;
}

.siatek-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: #f1f5f9;
}

.siatek-card p {
  color: var(--siatek-text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

/* Tags */
.siatek-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.siatek-tag {
  background: rgba(96, 165, 250, 0.12);
  color: var(--siatek-accent-1);
  padding: 4px 12px;
  border-radius: 16px;
  font-size: 0.7rem;
  font-weight: 500;
}

/* Status Badge */
.siatek-status {
  display: inline-block;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
  margin-top: 16px;
}

.siatek-status.active {
  background: rgba(34, 197, 94, 0.12);
  color: #22c55e;
}

.siatek-status.beta {
  background: rgba(234, 179, 8, 0.12);
  color: #eab308;
}

/* ============================================
   SERVICE CARDS (with links)
   ============================================ */
.siatek-service-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

.siatek-service-card .siatek-card {
  height: 100%;
}

.siatek-service-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--siatek-accent-1);
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 8px;
  transition: gap 0.2s ease;
}

.siatek-service-card:hover .siatek-service-link {
  gap: 8px;
}

/* ============================================
   TECH GRID
   ============================================ */
.siatek-tech-card {
  background: var(--siatek-card-bg);
  border: 1px solid var(--siatek-card-border);
  border-radius: 20px;
  padding: 28px 20px;
  transition: all 0.3s ease;
}

.siatek-tech-card:hover {
  border-color: var(--siatek-card-hover-border);
  background: var(--siatek-card-hover-bg);
}

.siatek-tech-card .siatek-card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
}

.siatek-tech-card h3 {
  font-size: 1.1rem;
  margin-bottom: 6px;
}

.siatek-tech-card p {
  font-size: 0.8rem;
  color: #64748b;
}

/* ============================================
   CTA SECTION
   ============================================ */
.siatek-cta {
  text-align: center;
  background: linear-gradient(135deg, rgba(96, 165, 250, 0.08), rgba(192, 132, 252, 0.04));
  border-radius: 40px;
  padding: 64px 40px;
  margin: 0 24px 80px;
  border: 1px solid rgba(96, 165, 250, 0.15);
  position: relative;
  overflow: hidden;
}

.siatek-cta::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, rgba(96, 165, 250, 0.04), transparent 60%);
  animation: rotate 20s linear infinite;
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.siatek-cta-content {
  position: relative;
  z-index: 1;
}

.siatek-cta h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 16px;
  color: #f1f5f9;
}

.siatek-cta p {
  color: var(--siatek-text-muted);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================
   NEWSLETTER
   ============================================ */
.siatek-newsletter {
  text-align: center;
  background: rgba(96, 165, 250, 0.04);
  border-radius: 40px;
  padding: 48px 32px;
  margin: 0 24px 80px;
  border: 1px solid rgba(96, 165, 250, 0.12);
}

.siatek-newsletter h2 {
  font-size: 1.6rem;
  margin-bottom: 12px;
  color: #f1f5f9;
}

.siatek-newsletter p {
  color: var(--siatek-text-muted);
  margin-bottom: 28px;
}

.siatek-newsletter-form {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.siatek-newsletter-form input {
  padding: 14px 24px;
  border-radius: 40px;
  border: 1px solid #334155;
  background: #1e293b;
  color: #fff;
  width: 320px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.siatek-newsletter-form input:focus {
  outline: none;
  border-color: var(--siatek-accent-1);
}

.siatek-newsletter-form input::placeholder {
  color: #64748b;
}

.siatek-newsletter-form button {
  background: linear-gradient(135deg, var(--siatek-accent-1), var(--siatek-accent-2));
  color: #fff;
  border: none;
  padding: 14px 32px;
  border-radius: 40px;
  cursor: pointer;
  font-weight: 600;
  font-family: inherit;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.siatek-newsletter-form button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(96, 165, 250, 0.3);
}

.siatek-newsletter-note {
  font-size: 0.7rem;
  color: #475569;
  margin-top: 16px;
}

/* ============================================
   FOOTER
   ============================================ */
.siatek-footer {
  border-top: 1px solid #1e293b;
  padding: 56px 24px 32px;
  text-align: center;
}

.siatek-footer-grid {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px;
  text-align: left;
  margin-bottom: 40px;
}

.siatek-footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: #f1f5f9;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.siatek-footer-col a {
  display: block;
  color: var(--siatek-text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 4px 0;
  transition: color 0.2s ease;
}

.siatek-footer-col a:hover {
  color: var(--siatek-accent-1);
}

.siatek-footer-social {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 28px;
}

.siatek-footer-social a {
  color: #64748b;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.siatek-footer-social a:hover {
  color: var(--siatek-accent-1);
}

.siatek-footer-bottom {
  color: #475569;
  font-size: 0.75rem;
  line-height: 1.8;
}

.siatek-footer-bottom a {
  color: var(--siatek-accent-1);
  text-decoration: none;
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
  .siatek-nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 26, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px;
    gap: 4px;
    border-bottom: 1px solid rgba(96, 165, 250, 0.1);
  }

  .siatek-nav-links.active {
    display: flex;
  }

  .siatek-nav-toggle {
    display: flex;
  }

  .siatek-hero {
    padding: 100px 20px 60px;
  }

  .siatek-section {
    padding: 60px 20px;
  }

  .siatek-grid-3 {
    grid-template-columns: 1fr;
  }

  .siatek-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .siatek-cta,
  .siatek-newsletter {
    margin-left: 16px;
    margin-right: 16px;
    padding: 40px 24px;
  }

  .siatek-footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 480px) {
  .siatek-grid-4 {
    grid-template-columns: 1fr;
  }

  .siatek-footer-grid {
    grid-template-columns: 1fr;
  }

  .siatek-hero-actions {
    flex-direction: column;
    align-items: center;
  }
}