/* ==========================================================================
   AIOGEO Expert — Design System
   ========================================================================== */

:root {
  --bg: #08090d;
  --bg-elev: #0f111a;
  --bg-elev-2: #151827;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f5f9;
  --text-dim: #a6acc0;
  --text-faint: #6b7186;
  --accent: #7c6fef;
  --accent-2: #b6a8ff;
  --gold: #f0b94d;
  --success: #4ade80;
  --gradient-1: linear-gradient(135deg, #7c6fef 0%, #b6a8ff 50%, #f0b94d 100%);
  --gradient-2: radial-gradient(circle at 20% 20%, rgba(124, 111, 239, 0.25), transparent 55%),
                radial-gradient(circle at 80% 0%, rgba(240, 185, 77, 0.12), transparent 45%);
  --shadow-lg: 0 30px 80px -30px rgba(0, 0, 0, 0.6);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
  --font-display: 'Sora', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
}

h1 { font-size: clamp(2.4rem, 4.5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.9rem, 3vw, 2.6rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
p { margin: 0 0 1em; color: var(--text-dim); }
.lede { font-size: 1.2rem; color: var(--text-dim); }

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

section { padding: 96px 0; position: relative; }
section.tight { padding: 64px 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(124, 111, 239, 0.12);
  border: 1px solid rgba(124, 111, 239, 0.25);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient-1);
  color: #08090d;
  box-shadow: 0 12px 30px -10px rgba(124, 111, 239, 0.55);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 40px -12px rgba(124, 111, 239, 0.7); }
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.07); border-color: rgba(255,255,255,0.25); }
.btn-sm { padding: 10px 20px; font-size: 0.85rem; }
.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  background: rgba(8, 9, 13, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--gradient-1);
  display: flex; align-items: center; justify-content: center;
  color: #08090d; font-weight: 800; font-size: 0.95rem;
}
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links a {
  padding: 9px 14px;
  font-size: 0.92rem;
  color: var(--text-dim);
  border-radius: 8px;
  transition: color 0.15s, background 0.15s;
  position: relative;
}
.nav-links a:hover { color: var(--text); background: rgba(255,255,255,0.04); }
.nav-links a.active { color: var(--text); }
.nav-cta { display: flex; align-items: center; gap: 10px; }
.has-dropdown { position: relative; }
.dropdown {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 260px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 8px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.15s, transform 0.15s, visibility 0.15s;
}
.has-dropdown:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown a { display: block; padding: 10px 12px; border-radius: 8px; font-size: 0.88rem; }
.dropdown a:hover { background: rgba(255,255,255,0.05); }
.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  padding: 88px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-2);
  pointer-events: none;
}
.hero-inner { max-width: 780px; position: relative; }
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}
.stat-num { font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--text); }
.stat-label { font-size: 0.85rem; color: var(--text-faint); }

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

.card {
  background: linear-gradient(180deg, var(--bg-elev), var(--bg-elev-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}
.card:hover { border-color: var(--border-strong); transform: translateY(-3px); }
.card-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  background: rgba(124, 111, 239, 0.14);
  border: 1px solid rgba(124, 111, 239, 0.25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
  color: var(--accent-2);
}
.card h3 { margin-bottom: 8px; }
.card p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Section headers ---------- */
.section-head { max-width: 680px; margin: 0 auto 56px; text-align: center; }
.section-head.left { margin: 0 0 48px; text-align: left; }

/* ---------- Process / Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding: 28px 24px 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg-elev); }
.step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.1em;
  display: block;
  margin-bottom: 12px;
}
.steps-vertical { display: flex; flex-direction: column; gap: 0; }
.steps-vertical .step { border-radius: 0; border: none; border-left: 2px solid var(--border); padding: 8px 0 40px 32px; margin-left: 12px; position: relative; background: transparent; }
.steps-vertical .step::before {
  position: absolute; left: -13px; top: 0;
  width: 24px; height: 24px;
  background: var(--bg);
  border: 2px solid var(--accent);
  border-radius: 50%;
  font-size: 0.6rem;
  display: flex; align-items: center; justify-content: center;
  margin: 0;
  color: var(--accent-2);
}
.steps-vertical .step:last-child { border-left-color: transparent; }

/* ---------- Logo / trust bar ---------- */
.trust-bar { display: flex; flex-wrap: wrap; gap: 32px; align-items: center; justify-content: center; opacity: 0.75; }
.trust-bar span { font-size: 0.85rem; color: var(--text-faint); border: 1px solid var(--border); padding: 8px 16px; border-radius: 999px; }

/* ---------- FAQ ---------- */
.faq-item { border-bottom: 1px solid var(--border); padding: 24px 0; }
.faq-item summary {
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: '+'; font-size: 1.4rem; color: var(--accent-2); transition: transform 0.2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { margin-top: 14px; }

/* ---------- CTA band ---------- */
.cta-band {
  border-radius: 24px;
  background: linear-gradient(135deg, rgba(124,111,239,0.16), rgba(240,185,77,0.08));
  border: 1px solid var(--border-strong);
  padding: 64px;
  text-align: center;
}

/* ---------- Forms ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 18px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 0.85rem; color: var(--text-dim); font-weight: 500; }
input, textarea, select {
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 13px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }
textarea { resize: vertical; min-height: 120px; }

/* ---------- Table (legal) ---------- */
.legal table { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 0.92rem; }
.legal th, .legal td { text-align: left; padding: 12px 14px; border: 1px solid var(--border); }
.legal th { background: var(--bg-elev); color: var(--text); }
.legal h2 { margin-top: 48px; }
.legal ul { color: var(--text-dim); }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 64px 0 32px; background: var(--bg-elev); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 48px; }
.footer-grid h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-faint); margin-bottom: 16px; }
.footer-grid a, .footer-grid p { display: block; font-size: 0.9rem; color: var(--text-dim); margin-bottom: 10px; }
.footer-grid a:hover { color: var(--text); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 28px; border-top: 1px solid var(--border);
  font-size: 0.82rem; color: var(--text-faint); flex-wrap: wrap; gap: 12px;
}

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.badge-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.badge-list span { font-size: 0.82rem; padding: 7px 14px; border-radius: 999px; border: 1px solid var(--border-strong); color: var(--text-dim); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.panel {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { display: flex; gap: 12px; padding: 10px 0; color: var(--text-dim); }
.check-list li::before { content: '✓'; color: var(--success); font-weight: 700; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .nav-links, .has-dropdown .dropdown { display: none; }
  .grid-3, .grid-4, .steps { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .two-col { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  section { padding: 64px 0; }
  .grid-2, .grid-3, .grid-4, .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .cta-band { padding: 40px 24px; }
  .nav-cta .btn-ghost { display: none; }
}

.popup-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(4, 5, 9, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.popup-overlay[hidden] { display: none; }
.popup-panel {
  position: relative;
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--bg-elev);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow-lg);
}
.popup-panel .form-grid { grid-template-columns: 1fr; margin-top: 20px; }
.popup-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  background: var(--bg-elev-2);
  color: var(--text);
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
}
.popup-close:hover { background: var(--bg-elev); }