/* ============================================
   Carina Labs — Design System
   ============================================ */

:root {
  --bg: #08090d;
  --bg-elevated: #0f1117;
  --surface: #13151d;
  --surface-border: #21242f;
  --text: #f2f3f7;
  --text-dim: #9aa0b1;
  --text-faint: #666c7e;
  --accent: #6a7bff;
  --accent-2: #34e5c8;
  --accent-soft: rgba(106, 123, 255, 0.12);
  --gradient: linear-gradient(120deg, #6a7bff 0%, #9a6bff 45%, #34e5c8 100%);
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --max-width: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

section { position: relative; }

/* ----------- Typography ----------- */

h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--accent-2);
}

.lede {
  font-size: 19px;
  color: var(--text-dim);
  max-width: 620px;
}

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

/* ----------- Buttons ----------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--text);
  color: #08090d;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -10px rgba(106, 123, 255, 0.45);
}

.btn-ghost {
  background: transparent;
  border-color: var(--surface-border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.btn svg { width: 16px; height: 16px; transition: transform 0.3s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

/* ----------- Header ----------- */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease), padding 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(8, 9, 13, 0.82);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--surface-border);
  padding: 14px 0;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
}

.logo .mark {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  background: var(--gradient);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.logo .mark svg { width: 16px; height: 16px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav ul {
  display: flex;
  gap: 32px;
}

.main-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--text-dim);
  position: relative;
  padding: 4px 0;
  transition: color 0.25s var(--ease);
}
.main-nav a:hover, .main-nav a.active { color: var(--text); }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
}

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

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  border-radius: 8px;
  border: 1px solid var(--surface-border);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: "";
  display: block;
  width: 16px;
  height: 2px;
  background: var(--text);
  position: relative;
  transition: all 0.3s var(--ease);
}
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }

/* Mobile nav */
@media (max-width: 880px) {
  .main-nav {
    position: fixed;
    top: 0; right: 0;
    height: 100vh;
    width: min(320px, 85vw);
    background: var(--bg-elevated);
    border-left: 1px solid var(--surface-border);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 40px;
    transform: translateX(100%);
    transition: transform 0.4s var(--ease);
    gap: 32px;
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 24px; }
  .main-nav ul a { font-size: 20px; }
  .nav-actions .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
}

/* ----------- Hero ----------- */

.hero {
  padding: 200px 0 120px;
  position: relative;
}

.hero-bg {
  position: absolute;
  inset: -10% -10% auto -10%;
  height: 900px;
  z-index: -1;
  background:
    radial-gradient(500px 420px at 15% 20%, rgba(106, 123, 255, 0.20), transparent 60%),
    radial-gradient(460px 380px at 85% 10%, rgba(52, 229, 200, 0.16), transparent 60%);
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 0%, black, transparent 70%);
  z-index: -1;
}

.hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  max-width: 880px;
}

.hero .lede { margin-top: 24px; font-size: 20px; }

.hero-actions {
  display: flex;
  gap: 16px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: 80px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 780px;
  padding-top: 32px;
  border-top: 1px solid var(--surface-border);
}

.hero-meta div span {
  display: block;
  font-size: 13px;
  color: var(--text-faint);
  margin-top: 6px;
}
.hero-meta div strong { font-size: 16px; font-weight: 600; }

/* ----------- Section headers ----------- */

.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}

.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .lede { margin-left: auto; margin-right: auto; }

.section-pad { padding: 120px 0; }
.section-pad.tight { padding: 80px 0; }

.band-border-top { border-top: 1px solid var(--surface-border); }

/* ----------- Cards / Grids ----------- */

.grid {
  display: grid;
  gap: 24px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 920px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), background 0.4s var(--ease);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(106, 123, 255, 0.4);
  background: linear-gradient(180deg, #14151f 0%, #101119 100%);
}

.card .icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--accent-2);
}
.card .icon svg { width: 22px; height: 22px; }

.card h3 { font-size: 19px; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 15px; }

.card .num {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-faint);
  margin-bottom: 16px;
  display: block;
}

.card-link {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent-2);
}
.card-link svg { width: 14px; height: 14px; transition: transform 0.3s var(--ease); }
.card:hover .card-link svg { transform: translateX(4px); }

/* ----------- Process / Timeline ----------- */

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}
@media (max-width: 920px) { .process { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .process { grid-template-columns: 1fr; } }

.process .step {
  position: relative;
  padding-top: 28px;
  border-top: 2px solid var(--surface-border);
}
.process .step .step-num {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 14px;
  display: block;
}
.process .step h3 { font-size: 18px; margin-bottom: 10px; }
.process .step p { color: var(--text-dim); font-size: 14.5px; }

/* ----------- Values grid ----------- */

.value-row {
  display: flex;
  gap: 24px;
  padding: 32px 0;
  border-top: 1px solid var(--surface-border);
  align-items: flex-start;
}
.value-row:last-child { border-bottom: 1px solid var(--surface-border); }

.value-row .value-index {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-faint);
  min-width: 48px;
  padding-top: 4px;
}
.value-row h3 { font-size: 20px; margin-bottom: 8px; }
.value-row p { color: var(--text-dim); max-width: 640px; }

/* ----------- CTA band ----------- */

.cta-band {
  border-radius: var(--radius-lg);
  padding: 72px 56px;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  position: relative;
  overflow: hidden;
  text-align: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(600px 260px at 50% 0%, rgba(106,123,255,0.18), transparent 70%);
  pointer-events: none;
}
.cta-band h2 { font-size: clamp(28px, 4vw, 40px); margin-bottom: 16px; }
.cta-band .lede { margin: 0 auto 32px; }
.cta-band .hero-actions { justify-content: center; margin-top: 0; }

/* ----------- Service detail sections (services page) ----------- */

.service-detail {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  padding: 72px 0;
  border-top: 1px solid var(--surface-border);
  align-items: start;
}
.service-detail:last-of-type { border-bottom: 1px solid var(--surface-border); }

@media (max-width: 860px) {
  .service-detail { grid-template-columns: 1fr; gap: 28px; }
}

.service-detail .tag {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent-2);
  letter-spacing: 0.04em;
}
.service-detail h2 { font-size: 30px; margin: 12px 0 16px; }
.service-detail p { color: var(--text-dim); max-width: 460px; }

.service-detail .icon {
  width: 52px; height: 52px;
  border-radius: 12px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  color: var(--accent-2);
  margin-bottom: 24px;
}
.service-detail .icon svg { width: 26px; height: 26px; }

.check-list { display: grid; gap: 14px; }
.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--text-dim);
}
.check-list li svg {
  width: 18px; height: 18px;
  color: var(--accent-2);
  flex-shrink: 0;
  margin-top: 2px;
}
.check-list li strong { color: var(--text); font-weight: 600; }

/* ----------- About page specifics ----------- */

.about-hero-figure {
  margin-top: 64px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--surface-border);
  background:
    linear-gradient(135deg, rgba(106,123,255,0.14), rgba(52,229,200,0.10)),
    var(--surface);
  height: 320px;
  position: relative;
  overflow: hidden;
}
.about-hero-figure svg { position: absolute; inset: 0; width: 100%; height: 100%; }

/* ----------- Contact page ----------- */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 0.85fr;
  gap: 64px;
  align-items: start;
}
@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; }
}

.form-group { margin-bottom: 22px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 8px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: #15171f;
}
.form-group textarea { resize: vertical; min-height: 130px; }

.form-note { font-size: 13px; color: var(--text-faint); margin-top: 16px; }

.contact-info-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 36px;
}
.contact-info-card .row {
  display: flex;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--surface-border);
}
.contact-info-card .row:first-child { border-top: none; padding-top: 0; }
.contact-info-card .row .icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: grid;
  place-items: center;
  color: var(--accent-2);
  flex-shrink: 0;
}
.contact-info-card .row .icon svg { width: 19px; height: 19px; }
.contact-info-card .row h4 { font-size: 15px; margin-bottom: 4px; }
.contact-info-card .row p, .contact-info-card .row a { font-size: 14.5px; color: var(--text-dim); }
.contact-info-card .row a:hover { color: var(--accent-2); }

/* ----------- Footer ----------- */

.site-footer {
  border-top: 1px solid var(--surface-border);
  padding: 72px 0 32px;
  margin-top: 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}
@media (max-width: 780px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer-top { grid-template-columns: 1fr; }
}

.footer-brand .logo { margin-bottom: 16px; }
.footer-brand p { color: var(--text-dim); max-width: 280px; font-size: 14.5px; }

.footer-col h4 {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  margin-bottom: 18px;
}
.footer-col ul { display: grid; gap: 12px; }
.footer-col a { font-size: 14.5px; color: var(--text-dim); transition: color 0.25s var(--ease); }
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 32px;
  border-top: 1px solid var(--surface-border);
  font-size: 13.5px;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 16px;
}

/* ----------- Reveal-on-scroll ----------- */

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
}
.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ----------- Page hero (inner pages) ----------- */

.page-hero {
  padding: 180px 0 80px;
}
.page-hero h1 { font-size: clamp(34px, 5vw, 54px); max-width: 760px; }
.page-hero .lede { margin-top: 20px; }

@media (max-width: 640px) {
  .hero { padding: 160px 0 80px; }
  .page-hero { padding: 150px 0 60px; }
  .section-pad { padding: 80px 0; }
  .cta-band { padding: 48px 28px; }
  .service-detail { padding: 48px 0; }
}