/* === Torren Technical Design System === */
:root {
  --bg: #111418;
  --bg-alt: #1F2933;
  --bg-card: #1F2933;
  --text: #E5E7EB;
  --text-muted: #94A3B8;
  --text-dim: #64748B;
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-2: #38BDF8;
  --border: #2D3748;
  --max-width: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: var(--accent-2); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent); }

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

/* === Container === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* === Typography === */
h1, h2, h3, h4 {
  font-family: 'Inter Tight', 'Inter', sans-serif;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; color: var(--text-muted); }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.75rem;
  color: var(--accent-2);
  font-weight: 600;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.125rem;
  color: var(--text);
  max-width: 60ch;
}

/* === Header === */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(17, 20, 24, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Inter Tight', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text);
}

.brand-mark {
  width: 32px;
  height: 32px;
  background: var(--accent);
  border-radius: 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-weight: 900;
  font-size: 18px;
}

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

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--accent);
  color: #ffffff !important;
  padding: 10px 18px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 0.85rem !important;
}

.nav-cta:hover { background: var(--accent-hover); color: #ffffff !important; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* === Sections === */
.section {
  padding: 96px 0;
}

.section-tight { padding: 64px 0; }

.section-dark { background: var(--bg-alt); }

/* === Hero === */
.hero {
  padding: 120px 0 96px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.4fr 1fr; gap: 64px; }
}

.hero h1 { margin-bottom: 24px; }
.hero .lead { margin-bottom: 32px; font-size: 1.25rem; }

.hero-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.stat-num {
  font-family: 'Inter Tight', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: #ffffff;
}

.btn-primary:hover { background: var(--accent-hover); color: #ffffff; transform: translateY(-1px); }

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

.btn-ghost:hover { border-color: var(--accent-2); color: var(--accent-2); }

.btn-group { display: flex; gap: 12px; flex-wrap: wrap; }

/* === Cards === */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover { border-color: var(--accent-2); transform: translateY(-2px); }

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(37, 99, 235, 0.12);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
  color: var(--accent-2);
}

.card h3 { color: var(--text); }

/* === Two-column === */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

@media (min-width: 800px) {
  .two-col { grid-template-columns: 1fr 1fr; }
}

/* === Tables / Lists === */
.feature-list {
  list-style: none;
  padding: 0;
}

.feature-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 12px;
  color: var(--text-muted);
}

.feature-list li::before {
  content: '→';
  color: var(--accent-2);
  font-weight: 700;
  flex-shrink: 0;
}

.feature-list li:last-child { border-bottom: none; }

/* === Form === */
.form-wrap {
  max-width: 640px;
  margin: 0 auto;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 16px;
}

@media (min-width: 600px) {
  .form-row-2 { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.consent {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.consent input { margin-top: 4px; }

.form-status {
  margin-top: 16px;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.9rem;
  display: none;
}

.form-status.success { background: rgba(56, 189, 248, 0.1); color: var(--accent-2); display: block; border: 1px solid rgba(56, 189, 248, 0.3); }
.form-status.error { background: rgba(239, 68, 68, 0.1); color: #f87171; display: block; border: 1px solid rgba(239, 68, 68, 0.3); }

/* === Footer === */
.site-footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 64px 0 32px;
  margin-top: 96px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

@media (min-width: 700px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text);
  margin-bottom: 16px;
}

.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--text-muted); font-size: 0.9rem; }
.footer-col a:hover { color: var(--accent-2); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* === Mobile Nav === */
@media (max-width: 800px) {
  .nav-links {
    position: fixed;
    top: 73px;
    left: 0;
    right: 0;
    background: var(--bg-alt);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-150%);
    transition: transform 0.3s;
  }
  .nav-links.open { transform: translateY(0); }
  .menu-toggle { display: block; }
  .hero { padding: 64px 0; }
  .section { padding: 64px 0; }
}

/* === Utility === */
.text-center { text-align: center; }
.mt-lg { margin-top: 48px; }
.mb-sm { margin-bottom: 16px; }
.mb-lg { margin-bottom: 32px; }
.muted { color: var(--text-muted); }
.accent { color: var(--accent-2); }