/* ---------------------------------------------------
   Base / variables
--------------------------------------------------- */
:root {
  --bg:        #0a0b0d;
  --bg-deep:   #050606;
  --bg-alt:    #111318;
  --bg-card:   #15171c;
  --header-bg: rgba(10, 11, 13, 0.85);
  --border:    rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.16);
  --text:      #f3f4f2;
  --text-dim:  #9ca0a8;
  --text-faint:#6b6f77;
  --accent:    #5eead4;
  --accent-contrast: #06201b;
  --accent-soft: rgba(94, 234, 212, 0.12);
  --mono: 'JetBrains Mono', ui-monospace, Menlo, monospace;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --maxw: 1080px;
  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg:        #fafaf8;
  --bg-deep:   #eef0ec;
  --bg-alt:    #f1f2ee;
  --bg-card:   #ffffff;
  --header-bg: rgba(250, 250, 248, 0.85);
  --border:    rgba(10, 11, 13, 0.08);
  --border-strong: rgba(10, 11, 13, 0.16);
  --text:      #0f1113;
  --text-dim:  #51555c;
  --text-faint:#80848c;
  --accent:    #0d9488;
  --accent-contrast: #ffffff;
  --accent-soft: rgba(13, 148, 136, 0.08);
  color-scheme: light;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s ease, color 0.2s ease;
}

a { color: inherit; text-decoration: none; }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { margin: 0; font-weight: 700; letter-spacing: -0.01em; }

/* ---------------------------------------------------
   Header
--------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

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

.nav-group {
  display: flex;
  align-items: center;
  gap: 20px;
}

.logo {
  font-family: var(--mono);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.02em;
}
.logo .dot { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 28px; }
.nav a {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.15s ease;
}
.nav a:hover { color: var(--text); }
.nav-cta {
  color: var(--text) !important;
  padding: 8px 16px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
}
.nav-cta:hover { border-color: var(--accent); color: var(--accent) !important; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text);
}

.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}
.theme-toggle:hover { color: var(--accent); border-color: var(--accent); }
.theme-toggle svg { width: 17px; height: 17px; }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* ---------------------------------------------------
   Hero
--------------------------------------------------- */
.hero {
  padding: 120px 0 80px;
  border-bottom: 1px solid var(--border);
}

.name-tag {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 10px;
}

.eyebrow {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(34px, 5.5vw, 58px);
  line-height: 1.08;
  max-width: 820px;
  margin-bottom: 24px;
}

.hero-sub {
  max-width: 620px;
  color: var(--text-dim);
  font-size: 17px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  transition: all 0.15s ease;
}
.btn-primary {
  background: var(--accent);
  color: var(--accent-contrast);
}
.btn-primary:hover { opacity: 0.85; }
.btn-ghost {
  border: 1px solid var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ---------------------------------------------------
   Stats strip
--------------------------------------------------- */
.stats {
  border-bottom: 1px solid var(--border);
  background: var(--bg-alt);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  padding: 36px 24px;
  gap: 24px;
}
.stat { display: flex; flex-direction: column; gap: 4px; }
.stat-num {
  font-family: var(--mono);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 600;
  color: var(--text);
}
.stat-label {
  font-size: 13px;
  color: var(--text-faint);
}

/* ---------------------------------------------------
   Sections
--------------------------------------------------- */
.section { padding: 88px 0; border-bottom: 1px solid var(--border); }
.section-alt { background: var(--bg-alt); }
.section-dark { background: var(--bg-deep); }

.section-title {
  font-size: clamp(26px, 3.4vw, 34px);
  margin-bottom: 12px;
}
.section-intro {
  color: var(--text-dim);
  max-width: 560px;
  font-size: 16px;
  margin-bottom: 48px;
}

/* ---------------------------------------------------
   Cards (companies)
--------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
}
.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}
.card h3 { font-size: 20px; }
.card-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 3px 8px;
  white-space: nowrap;
}
.card p { color: var(--text-dim); font-size: 15px; margin: 0 0 16px; }
.card-link {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent);
}

/* ---------------------------------------------------
   Crawler section
--------------------------------------------------- */
.crawler-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 48px;
  align-items: start;
}
.crawler-copy h3 { font-size: 22px; margin-bottom: 16px; }
.crawler-copy p { color: var(--text-dim); font-size: 15.5px; margin: 0 0 18px; }
.crawler-note {
  padding: 16px 18px;
  background: var(--accent-soft);
  border-left: 2px solid var(--accent);
  border-radius: 0 6px 6px 0;
  color: var(--text) !important;
  font-size: 14.5px !important;
}
.crawler-specs {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.crawler-specs li {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 14px;
}
.crawler-specs li span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
}

/* ---------------------------------------------------
   Services
--------------------------------------------------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service {
  border-top: 2px solid var(--border-strong);
  padding-top: 16px;
}
.service h4 { font-size: 16px; margin-bottom: 8px; }
.service p { color: var(--text-dim); font-size: 14.5px; margin: 0; }

/* ---------------------------------------------------
   Ventures
--------------------------------------------------- */
.ventures-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 24px;
}
.venture {
  display: block;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 24px;
  transition: border-color 0.15s ease;
}
.venture:hover { border-color: var(--accent); }
.venture h4 { font-size: 17px; margin-bottom: 8px; }
.venture p { color: var(--text-dim); font-size: 14.5px; margin: 0 0 14px; }
.venture-link {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--accent);
}

/* ---------------------------------------------------
   Skills tag list
--------------------------------------------------- */
.tag-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0;
  padding: 0;
}
.tag-list li {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 8px 16px;
}

/* ---------------------------------------------------
   Contact
--------------------------------------------------- */
.contact-wrap { text-align: left; }
.contact-actions { margin: 8px 0 28px; }
.socials {
  display: flex;
  gap: 24px;
}
.socials a {
  font-size: 14px;
  color: var(--text-dim);
  border-bottom: 1px solid transparent;
}
.socials a:hover { color: var(--accent); border-color: var(--accent); }

/* ---------------------------------------------------
   Footer
--------------------------------------------------- */
.site-footer { padding: 32px 0 48px; }
.footer-inner {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-faint);
}

/* ---------------------------------------------------
   Responsive
--------------------------------------------------- */
@media (max-width: 860px) {
  .cards, .ventures-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .crawler-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr; }
  .hero { padding: 96px 0 56px; }
  .footer-inner { flex-direction: column; gap: 6px; }
}

body.nav-open .nav {
  display: flex;
  position: absolute;
  top: 64px;
  left: 0;
  right: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 8px 24px 20px;
}
body.nav-open .nav a { padding: 10px 0; width: 100%; }