/* =====================================================
   VORTEX INDEX — Shared Stylesheet
   ===================================================== */

:root {
  --bg-0: #0a0a0a;
  --bg-1: #111114;
  --bg-2: #18181c;
  --bg-3: #1f1f24;
  --border: #2a2a30;
  --border-bright: #3a3a42;
  --text-0: #f5f5f4;
  --text-1: #d4d4d1;
  --text-2: #a8a29e;
  --text-3: #57534e;
  --gold: #d4af37;
  --gold-bright: #f0c651;
  --gold-dim: #9a7c1f;
  --green: #4ade80;
  --red: #ef4444;
  --blue: #60a5fa;
  --grad-gold: linear-gradient(135deg, #f0c651 0%, #d4af37 40%, #9a7c1f 100%);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg-0);
  color: var(--text-0);
  font-family: 'Manrope', sans-serif;
  font-weight: 400;
  line-height: 1.5;
  overflow-x: hidden;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(212,175,55,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,55,0.025) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.3'/%3E%3C/svg%3E");
  opacity: 0.04;
  pointer-events: none;
  z-index: 1;
  mix-blend-mode: overlay;
}

main, header, footer, section { position: relative; z-index: 2; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 32px;
}

/* === HEADER === */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  background: rgba(10, 10, 10, 0.7);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-family: 'Instrument Serif', serif;
  font-size: 28px;
  letter-spacing: -0.01em;
  color: var(--text-0);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-mark {
  width: 28px;
  height: 28px;
  background: var(--grad-gold);
  border-radius: 50%;
  position: relative;
  box-shadow: 0 0 24px rgba(212,175,55,0.5);
}

.logo-mark::before {
  content: '';
  position: absolute;
  inset: 6px;
  background: var(--bg-0);
  border-radius: 50%;
}

.logo-mark::after {
  content: '';
  position: absolute;
  inset: 11px;
  background: var(--gold);
  border-radius: 50%;
}

.logo b {
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 17px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.logo i { font-style: italic; color: var(--gold); }

.logo-text {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
}

.logo-text > span:first-child {
  font-size: 17px;
  letter-spacing: 0.18em;
}

.logo-sub {
  font-family: 'Manrope', sans-serif;
  font-weight: 400;
  font-size: 8px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--text-2, #8a8a92);
  margin-top: 4px;
}

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

.nav-links a {
  color: var(--text-1);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: color 0.2s;
  padding: 4px 0;
  position: relative;
}

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

.nav-links a.active {
  color: var(--gold);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--gold);
}

.nav-cta {
  display: flex;
  gap: 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 6px;
  font-family: 'Manrope', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  text-decoration: none;
}

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

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

.btn-primary {
  background: var(--grad-gold);
  color: #1a1503;
  box-shadow: 0 4px 20px rgba(212,175,55,0.25);
}

.btn-primary:hover {
  box-shadow: 0 6px 30px rgba(212,175,55,0.4);
  transform: translateY(-1px);
}

.btn-lg { padding: 16px 32px; font-size: 14px; }

/* === SECTION === */
section.block {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}

.section-header {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  margin-bottom: 60px;
  align-items: end;
}

@media (max-width: 768px) {
  .section-header { grid-template-columns: 1fr; gap: 32px; }
}

.section-eyebrow {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--gold);
  text-transform: uppercase;
}

.section-title {
  font-family: 'Fraunces', serif;
  font-weight: 350;
  font-size: clamp(36px, 4vw, 56px);
  letter-spacing: -0.03em;
  line-height: 1;
  margin-top: 16px;
}

.section-title em {
  font-style: italic;
  color: var(--gold);
}

.section-desc {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.6;
}

/* === BADGES === */
.badge-buy {
  background: rgba(74,222,128,0.1);
  color: var(--green);
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid rgba(74,222,128,0.3);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.badge-sell {
  background: rgba(239,68,68,0.1);
  color: var(--red);
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid rgba(239,68,68,0.3);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.badge-hold {
  background: rgba(168,162,158,0.1);
  color: var(--text-2);
  padding: 3px 10px;
  border-radius: 3px;
  border: 1px solid var(--border-bright);
  font-size: 11px;
  letter-spacing: 0.1em;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.pos { color: var(--green); }
.neg { color: var(--red); }

/* === FOOTER === */
footer {
  padding: 60px 0 40px;
  background: var(--bg-0);
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 60px;
}

@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

.footer-brand p {
  font-size: 13px;
  color: var(--text-2);
  margin-top: 16px;
  max-width: 340px;
  line-height: 1.6;
}

.footer-col h5 {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  color: var(--text-1);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--gold); }

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 12px;
  color: var(--text-3);
}

/* === MODAL === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(8px);
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.active { display: flex; }

.modal {
  background: var(--bg-1);
  border: 1px solid var(--border-bright);
  width: 100%;
  max-width: 440px;
  padding: 48px 40px;
  position: relative;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { transform: translateY(20px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  font-size: 24px;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.modal-close:hover { color: var(--gold); }

.modal h2 {
  font-family: 'Fraunces', serif;
  font-weight: 400;
  font-size: 28px;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.modal-sub {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 32px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.field label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--text-2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.field input {
  background: var(--bg-0);
  border: 1px solid var(--border-bright);
  color: var(--text-0);
  padding: 14px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  transition: border-color 0.2s;
  border-radius: 4px;
}

.field input:focus {
  outline: none;
  border-color: var(--gold);
}

.modal-foot {
  text-align: center;
  margin-top: 24px;
  font-size: 13px;
  color: var(--text-2);
}

.modal-foot a { color: var(--gold); text-decoration: none; }
.modal-foot a:hover { text-decoration: underline; }

/* === MOBILE === */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .container { padding: 0 20px; }
}

/* Reveal animation */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

[data-reveal].visible {
  opacity: 1;
  transform: translateY(0);
}