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

:root {
  --black: #000;
  --bg: #050505;
  --surface: #0c0c0c;
  --border: rgba(201, 168, 76, 0.08);
  --border-hover: rgba(201, 168, 76, 0.2);
  --gold: #b8972f;
  --gold-light: #d4b95e;
  --gold-bright: #e8cc6a;
  --gold-dim: #7a6420;
  --text: #d4d4d4;
  --text-secondary: #6e6e6e;
  --heading: 'Cormorant Garamond', Georgia, serif;
  --body: 'Outfit', -apple-system, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--body);
  background: var(--black);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 56px;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border-bottom: 1px solid var(--border);
  opacity: 0;
  transform: translateY(-100%);
  transition: opacity 0.5s ease, transform 0.5s ease;
  pointer-events: none;
}

.nav.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.nav-brand {
  font-family: var(--heading);
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--gold-light);
  text-decoration: none;
}

.nav-menu { display: flex; gap: 40px; }

.nav-menu a {
  text-decoration: none;
  font-family: var(--body);
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.4s ease;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--gold);
  transition: width 0.4s cubic-bezier(0.4, 0, 0, 1);
}

.nav-menu a:hover { color: var(--gold-light); }
.nav-menu a:hover::after { width: 100%; }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  z-index: 1;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 200px;
  background: linear-gradient(to bottom, transparent, var(--black));
  z-index: 2;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  padding: 0 24px;
}

.hero-title {
  font-family: var(--heading);
  font-size: clamp(4rem, 14vw, 12rem);
  font-weight: 300;
  letter-spacing: 0.2em;
  padding-right: 0.2em;
  line-height: 0.9;
  color: var(--gold-light);
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.7), 0 2px 10px rgba(0, 0, 0, 0.9);
}

.hero-sub {
  font-family: var(--body);
  font-size: clamp(0.85rem, 1.6vw, 1.05rem);
  font-weight: 300;
  color: var(--gold-light);
  letter-spacing: 0.12em;
  padding-right: 0.12em;
  max-width: 500px;
  text-shadow: 0 2px 16px rgba(184, 151, 47, 0.4), 0 1px 6px rgba(0, 0, 0, 0.6);
}

/* HERO BUTTONS */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 12px;
}

.hero-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 36px;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(184, 151, 47, 0.25);
  border-radius: 6px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease, transform 0.3s ease;
}

.hero-btn:hover {
  background: rgba(0, 0, 0, 0.75);
  border-color: var(--gold-light);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 20px rgba(184, 151, 47, 0.08);
  transform: translateY(-2px);
}

.hero-btn:active {
  transform: translateY(0) scale(0.98);
}

.hero-btn-label {
  font-family: var(--body);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--gold-light);
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.hero-btn-icon {
  width: 16px;
  height: 16px;
  color: var(--gold-light);
}

/* HERO CA */
.hero-ca {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  cursor: pointer;
  position: relative;
}

.hero-ca-label {
  font-family: var(--body);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--gold-dim);
}

.hero-ca-address {
  font-family: var(--body);
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--gold-light);
  padding: 6px 14px;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(184, 151, 47, 0.15);
  border-radius: 4px;
  transition: border-color 0.3s ease, background 0.3s ease;
}

.hero-ca-address:hover {
  border-color: var(--gold-light);
  background: rgba(0, 0, 0, 0.7);
}

.hero-ca-copied {
  font-family: var(--body);
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--gold-light);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.hero-ca-copied.show {
  opacity: 1;
}

/* ===== SECTIONS ===== */
.section {
  padding: 140px 56px;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 80px;
}

.section-label {
  font-family: var(--body);
  font-size: 0.65rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
  text-transform: uppercase;
}

.section-title {
  font-family: var(--heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 300;
  letter-spacing: 0.15em;
  color: var(--gold-light);
}

.section-line {
  width: 30px;
  height: 1px;
  background: var(--gold-dim);
}

/* ===== ABOUT ===== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.about-card {
  position: relative;
  background: var(--surface);
  padding: 56px 40px;
  border: 1px solid var(--border);
  transition: background 0.5s ease, border-color 0.5s ease;
  overflow: hidden;
}

.about-card:hover {
  background: #0f0f0f;
  border-color: var(--border-hover);
}

.about-card-accent {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
  opacity: 0;
  transition: opacity 0.5s ease;
}

.about-card:hover .about-card-accent {
  opacity: 1;
}

.about-card h3 {
  font-family: var(--heading);
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--gold-light);
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.about-card p {
  font-family: var(--body);
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.85;
  color: var(--text-secondary);
}

.about-video-wrap {
  margin-top: 60px;
  max-width: 480px;
  margin-left: calc(50% - 230px);
  border: none;
  overflow: hidden;
}

.about-video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

/* ===== HOW TO BUY ===== */
.htb-timeline {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding-left: 40px;
}

.htb-line {
  position: absolute;
  left: 7px;
  top: 0;
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, var(--gold-dim), rgba(122, 100, 32, 0.15));
}

.htb-step {
  position: relative;
  padding: 0 0 56px 48px;
}

.htb-step:last-child { padding-bottom: 0; }

.htb-dot {
  position: absolute;
  left: -40px;
  top: 6px;
  width: 15px;
  height: 15px;
  border: 1px solid var(--gold-dim);
  border-radius: 50%;
  background: var(--black);
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.htb-step:hover .htb-dot {
  border-color: var(--gold-light);
  box-shadow: 0 0 20px rgba(184, 151, 47, 0.15);
}

.htb-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 40px 44px;
  transition: border-color 0.4s ease, background 0.4s ease;
}

.htb-step:hover .htb-card {
  border-color: var(--border-hover);
  background: #0f0f0f;
}

.htb-num {
  font-family: var(--heading);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.2em;
  color: var(--gold-dim);
  display: block;
  margin-bottom: 14px;
}

.htb-card h3 {
  font-family: var(--heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--gold-light);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
}

.htb-card p {
  font-family: var(--body);
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ===== CHART ===== */
.chart-frame {
  position: relative;
  border: 1px solid var(--border);
  background: var(--surface);
  min-height: 480px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: border-color 0.5s ease;
}

.chart-frame:hover {
  border-color: var(--border-hover);
}

.chart-frame-border {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.chart-frame-border::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold-dim), transparent);
  opacity: 0.4;
}

.chart-embed {
  width: 100%;
  height: 600px;
}

.chart-embed iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* ===== FOOTER ===== */
.footer {
  padding: 0 56px 56px;
  margin-top: 40px;
}

.footer-line {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin-bottom: 48px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  font-family: var(--heading);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--gold-dim);
}

.footer-legal {
  font-size: 0.68rem;
  color: #333;
  max-width: 480px;
  text-align: center;
  line-height: 1.6;
  font-weight: 300;
}

/* ===== REVEAL ANIMATIONS ===== */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s cubic-bezier(0.4, 0, 0, 1),
              transform 0.9s cubic-bezier(0.4, 0, 0, 1);
}

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

.about-card:nth-child(2) { transition-delay: 0.12s; }
.about-card:nth-child(3) { transition-delay: 0.24s; }

.htb-step:nth-child(2) { transition-delay: 0s; }
.htb-step:nth-child(3) { transition-delay: 0.1s; }
.htb-step:nth-child(4) { transition-delay: 0.2s; }
.htb-step:nth-child(5) { transition-delay: 0.3s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (max-width: 768px) {
  .nav { padding: 20px 28px; }
  .nav-menu { gap: 24px; }
  .nav-menu a { font-size: 0.65rem; }

  .section { padding: 100px 28px; }

  .about-card { padding: 40px 28px; }

  .htb-timeline { padding-left: 32px; }
  .htb-step { padding-left: 36px; }
  .htb-card { padding: 32px 28px; }
  .htb-dot { left: -32px; }

  .hero-title {
    font-size: clamp(3rem, 14vw, 8rem);
  }
}

@media (max-width: 480px) {
  .nav { padding: 16px 20px; }
  .nav-menu { gap: 16px; }
  .nav-menu a { font-size: 0.6rem; letter-spacing: 0.12em; }

  .section { padding: 80px 20px; }

  .hero-actions { gap: 10px; flex-wrap: wrap; justify-content: center; }
  .hero-btn { padding: 12px 24px; }
  .hero-btn-label { font-size: 0.6rem; letter-spacing: 0.18em; }

  .htb-timeline { padding-left: 24px; }
  .htb-step { padding-left: 28px; }
  .htb-dot { left: -24px; width: 12px; height: 12px; }
}