:root {
  --bg: #0e0e12;
  --bg-card: #14141a;
  --fg: #f0ece4;
  --fg-muted: #8a867c;
  --accent: #c9a84c;
  --accent-dim: rgba(201, 168, 76, 0.15);
  --border: rgba(240, 236, 228, 0.08);
  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
}

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

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ── Navigation ── */
.nav {
  padding: 28px 48px;
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: baseline;
  gap: 12px;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--fg);
}
.nav-tagline {
  font-size: 0.8rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

/* ── Hero ── */
.hero {
  padding: 100px 48px 80px;
}
.hero-inner {
  max-width: 760px;
}
.hero-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 28px;
}
.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(3.2rem, 6vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--fg);
  margin-bottom: 32px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 540px;
  line-height: 1.7;
}
.hero-divider {
  width: 48px;
  height: 1px;
  background: var(--accent);
  margin: 36px 0;
}
.hero-attribution {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--fg-muted);
}

/* ── Thesis ── */
.thesis {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 48px;
}
.thesis-inner {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 48px;
  max-width: 900px;
}
.thesis-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  padding-top: 6px;
}
.thesis-heading {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 16px;
}
.thesis-rule {
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 28px;
}
.thesis-body {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 48px;
}
.thesis-features {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.thesis-feature {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.thesis-feature-icon {
  flex-shrink: 0;
  margin-top: 4px;
  opacity: 0.9;
}
.thesis-feature-title {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--fg);
  margin-bottom: 4px;
}
.thesis-feature-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* ── Masterclass ── */
.masterclass {
  padding: 80px 48px;
  background: var(--bg);
}
.masterclass-inner { max-width: 760px; }
.masterclass-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}
.masterclass-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
}
.masterclass-label {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}
.masterclass-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 20px;
}
.masterclass-desc {
  font-size: 1rem;
  color: var(--fg-muted);
  line-height: 1.7;
  max-width: 540px;
  margin-bottom: 48px;
}
.masterclass-details {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-bottom: 36px;
}
.masterclass-detail { text-align: center; }
.detail-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.1;
}
.detail-label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-top: 6px;
}
.masterclass-divider-v {
  width: 1px;
  height: 40px;
  background: var(--border);
}
.masterclass-stamp {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid var(--accent-dim);
  padding: 8px 18px;
  background: var(--accent-dim);
}

/* ── Advisory ── */
.advisory {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 80px 48px;
}
.advisory-inner {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 48px;
  max-width: 900px;
}
.advisory-number {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 700;
  color: var(--border);
  line-height: 1;
  padding-top: 6px;
}
.advisory-tag {
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.advisory-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 16px;
}
.advisory-rule {
  width: 40px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 28px;
}
.advisory-body {
  font-size: 1.05rem;
  color: var(--fg-muted);
  line-height: 1.8;
  max-width: 580px;
  margin-bottom: 36px;
}
.advisory-slots {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.slot {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.slot-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

/* ── Closing CTA ── */
.closing {
  padding: 100px 48px 80px;
  background: var(--bg);
  text-align: center;
}
.closing-cta-wrap {
  margin-top: 48px;
}
.btn-gold {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  border: 1px solid var(--accent);
  padding: 14px 32px;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}
.btn-gold:hover { background: #d4b554; }
.btn-gold:disabled { opacity: 0.6; cursor: not-allowed; }
.btn-ghost {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--fg-muted);
  background: none;
  border: 1px solid var(--border);
  padding: 10px 24px;
  cursor: pointer;
  transition: border-color 0.2s;
}
.btn-ghost:hover { border-color: var(--fg-muted); }
.btn-full { width: 100%; }

/* ── Modal ── */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  align-items: center;
  justify-content: center;
}
.modal[aria-hidden="false"] { display: flex; }
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(14, 14, 18, 0.85);
  backdrop-filter: blur(4px);
}
.modal-panel {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 48px 40px;
  max-width: 420px;
  width: 90%;
  text-align: center;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 1.5rem;
  cursor: pointer;
  line-height: 1;
  padding: 4px;
  transition: color 0.2s;
}
.modal-close:hover { color: var(--fg); }
.modal-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.modal-title {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 12px;
}
.modal-sub {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 32px;
}
.form-group {
  margin-bottom: 16px;
  text-align: left;
}
.form-group label {
  display: block;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 6px;
}
.optional { font-size: 0.72rem; text-transform: none; letter-spacing: 0; }
.form-group input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 10px 14px;
  outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus { border-color: var(--accent); }
.form-group input::placeholder { color: var(--fg-muted); opacity: 0.5; }
.form-error {
  font-size: 0.82rem;
  color: #e05c5c;
  margin-bottom: 12px;
  min-height: 20px;
  text-align: left;
}
.modal-note {
  font-size: 0.72rem;
  color: var(--fg-muted);
  margin-top: 14px;
  opacity: 0.7;
}
.loading-spinner {
  display: inline-block;
  width: 14px;
  height: 14px;
  border: 2px solid var(--bg);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: 8px;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Success ── */
.success-panel { border-color: rgba(201, 168, 76, 0.3); }
.success-icon {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 16px;
  line-height: 1;
}
.closing-quote-mark {
  font-family: var(--font-display);
  font-size: 6rem;
  line-height: 0.5;
  color: var(--accent-dim);
  margin-bottom: 32px;
  display: block;
}
.closing-quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  font-weight: 400;
  color: var(--fg);
  line-height: 1.3;
  max-width: 680px;
  margin: 0 auto 24px;
}
.closing-attr {
  font-size: 0.85rem;
  color: var(--fg-muted);
  margin-bottom: 48px;
}
.closing-rule {
  width: 48px;
  height: 1px;
  background: var(--border);
  margin: 0 auto 28px;
}
.closing-body {
  font-size: 0.95rem;
  color: var(--fg-muted);
  max-width: 460px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px;
}
.footer-inner { max-width: 760px; }
.footer-brand {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 24px;
}
.footer-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
}
.footer-sub {
  font-size: 0.75rem;
  color: var(--fg-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}
.footer-rule {
  width: 40px;
  height: 1px;
  background: var(--accent);
  margin-bottom: 20px;
}
.footer-tagline {
  font-size: 0.9rem;
  color: var(--fg-muted);
}

/* ── Mobile ── */
@media (max-width: 640px) {
  .nav, .hero, .thesis, .masterclass, .advisory, .closing, .footer {
    padding-left: 24px;
    padding-right: 24px;
  }
  .thesis-inner, .advisory-inner {
    grid-template-columns: 1fr;
  }
  .thesis-number, .advisory-number {
    font-size: 2.5rem;
  }
  .masterclass-details {
    gap: 24px;
  }
  .footer-brand {
    flex-direction: column;
    gap: 6px;
  }
}