/* ==============================================
   BoKeChan Technology — Dark Tech Theme
   ============================================== */

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

:root {
  --bg-primary: #08090f;
  --bg-secondary: #0d1117;
  --bg-card: #131820;
  --bg-card-hover: #18202c;
  --border: #1e2a3a;
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --text-muted: #5c6670;

  --blue: #58a6ff;
  --blue-dim: #1f6feb;
  --green: #3fb950;
  --green-dim: #238636;
  --teal: #39d2c0;
  --purple: #a371f7;

  --gradient: linear-gradient(135deg, #58a6ff 0%, #3fb950 50%, #39d2c0 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(88,166,255,0.15) 0%, rgba(63,185,80,0.1) 100%);

  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.25s ease;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--blue); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--teal); }

strong { color: #fff; font-weight: 600; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8,9,15,0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-primary);
}

.logo-bracket { color: var(--blue-dim); }
.logo-text { font-family: var(--font-body); font-weight: 600; font-size: 0.95rem; margin-left: 4px; color: var(--text-secondary); }

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -20%, rgba(88,166,255,0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 80%, rgba(63,185,80,0.06) 0%, transparent 60%);
  pointer-events: none;
}

/* Grid pattern overlay */
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(88,166,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88,166,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 70%);
}

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

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 650px;
  margin: 0 auto 40px;
  line-height: 1.6;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px rgba(88,166,255,0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(88,166,255,0.4);
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--blue-dim);
  color: var(--blue);
  background: rgba(88,166,255,0.05);
}

/* Hero Stats */
.hero-stats {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 48px;
  margin-top: 80px;
  flex-wrap: wrap;
  justify-content: center;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  line-height: 1.4;
}

/* --- Sections --- */
.section {
  padding: 100px 0;
}

.section-alt {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
  margin-bottom: 48px;
  max-width: 600px;
}

/* --- About --- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.about-text .text-lg {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}

.info-card:hover {
  border-color: var(--blue-dim);
  background: var(--bg-card-hover);
}

.card-icon { font-size: 1.5rem; margin-bottom: 8px; }

.info-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 6px;
}

.info-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Services --- */
.service-domains {
  display: flex;
  flex-direction: column;
  gap: 56px;
}

.domain { }

.domain-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.domain-icon {
  font-size: 1.8rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-subtle);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.domain-header h3 {
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
}

.service-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--blue-dim);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.service-card h4 {
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.service-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Track Record --- */
.subsection-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 40px 0 20px;
  padding-left: 12px;
  border-left: 3px solid var(--blue-dim);
}

.subsection-title:first-of-type { margin-top: 0; }

.record-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

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

.record-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.record-card:hover {
  border-color: var(--blue-dim);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.record-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(88,166,255,0.12);
  color: var(--blue);
  margin-bottom: 14px;
  width: fit-content;
}

.record-badge-ai {
  background: rgba(163,113,247,0.12);
  color: var(--purple);
}

.record-card h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.record-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  flex: 1;
}

.record-metrics {
  display: flex;
  gap: 12px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.record-metrics span {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--teal);
  background: rgba(57,210,192,0.1);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid rgba(57,210,192,0.15);
}

/* --- Tech Stack --- */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.stack-category { }

.stack-category h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
}

.stack-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.stack-tag {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 5px 12px;
  border-radius: 4px;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.stack-tag:hover {
  border-color: var(--blue-dim);
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

/* --- Contact --- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

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

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

.contact-icon {
  font-size: 1.2rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.contact-item h4 {
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.contact-item p,
.contact-item a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.contact-sub {
  font-size: 0.8rem !important;
  color: var(--text-muted) !important;
  margin-top: 2px;
}

.contact-cta-card {
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.contact-cta-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
}

.contact-cta-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 24px;
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  padding: 32px 0;
  border-top: 1px solid var(--border);
  background: var(--bg-primary);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.footer-legal {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-info {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-info span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-copy {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .service-cards {
    grid-template-columns: 1fr;
  }

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

  .record-grid-2col {
    grid-template-columns: 1fr;
  }

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

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

  .nav-links {
    display: none;
  }

  .hero-stats {
    gap: 32px;
  }

  .stat-number {
    font-size: 1.6rem;
  }
}

@media (max-width: 500px) {
  .stack-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    gap: 24px;
  }

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

  .section {
    padding: 60px 0;
  }
}