:root {
  --bg: #1a1a1a;
  --bg-card: #242424;
  --bg-elevated: #2e2e2e;
  --text: #ffffff;
  --text-muted: #c0c0c0;
  --gold: #d4af37;
  --gold-hover: #e8c84a;
  --silver: #c0c0c0;
  --border: #3a3a3a;
  --radius: 8px;
  --radius-lg: 16px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--gold); text-decoration: none; }
a:hover { color: var(--gold-hover); }

/* ── NAVIGATION ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26,26,26,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: -0.5px;
}
.nav-logo span { color: var(--text); }
.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--text); }
.nav-cta {
  background: var(--gold);
  color: #000 !important;
  padding: 8px 18px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
}
.nav-cta:hover { background: var(--gold-hover) !important; color: #000 !important; }

/* hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-mobile {
  display: none;
  flex-direction: column;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  gap: 16px;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  color: var(--text-muted);
  font-size: 1rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.nav-mobile a:last-child { border-bottom: none; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 12px 28px;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
  white-space: nowrap;
}
.btn-primary {
  background: var(--gold);
  color: #000;
}
.btn-primary:hover {
  background: var(--gold-hover);
  color: #000;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(212,175,55,0.3);
}
.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-1px);
}
.btn-lg { font-size: 1.1rem; padding: 16px 36px; min-height: 56px; }
.btn-full { width: 100%; }

/* ── HERO ── */
.hero {
  padding: 96px 24px 80px;
  text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(212,175,55,0.08) 0%, transparent 70%);
}
.hero-tag {
  display: inline-block;
  background: rgba(212,175,55,0.15);
  color: var(--gold);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: 100px;
  padding: 4px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  margin-bottom: 24px;
  text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 20px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}
.hero h1 em {
  font-style: normal;
  color: var(--gold);
}
.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 40px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── STATS ── */
.stats {
  padding: 56px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.stats-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}
.stat-item {
  text-align: center;
  padding: 24px 16px;
  border-right: 1px solid var(--border);
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ── SECTION GENERIC ── */
.section {
  padding: 80px 24px;
  max-width: 1200px;
  margin: 0 auto;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 12px;
}
.section-sub {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ── HOW IT WORKS ── */
.how-it-works {
  background: var(--bg-card);
  padding: 80px 24px;
}
.how-tabs {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 48px;
}
.how-tab {
  padding: 10px 24px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all 0.2s;
}
.how-tab.active {
  background: var(--gold);
  color: #000;
  border-color: var(--gold);
  font-weight: 700;
}
.how-panel { display: none; }
.how-panel.active { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

.step-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
}
.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(212,175,55,0.15);
  border: 2px solid var(--gold);
  color: var(--gold);
  font-size: 1.2rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}
.step-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.step-card p { font-size: 0.9rem; color: var(--text-muted); }

/* ── VALUE CARDS ── */
.value-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: border-color 0.2s;
}
.value-card:hover { border-color: var(--gold); }
.value-icon {
  font-size: 2rem;
  margin-bottom: 16px;
}
.value-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.value-card p { color: var(--text-muted); font-size: 0.95rem; }

/* ── PROCESS STEPS ── */
.process-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 640px;
  margin: 0 auto;
}
.process-step {
  display: flex;
  gap: 24px;
  align-items: flex-start;
  padding: 24px 0;
  border-bottom: 1px solid var(--border);
}
.process-step:last-child { border-bottom: none; }
.process-num {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--gold);
  color: #000;
  font-weight: 700;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.process-content h3 { font-size: 1rem; margin-bottom: 4px; }
.process-content p { color: var(--text-muted); font-size: 0.9rem; }

/* ── PRICING ── */
.pricing-card {
  max-width: 480px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 2px solid var(--gold);
  border-radius: var(--radius-lg);
  padding: 40px;
  text-align: center;
}
.pricing-tag {
  display: inline-block;
  background: var(--gold);
  color: #000;
  padding: 4px 16px;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  text-transform: uppercase;
}
.pricing-main { font-size: 3rem; font-weight: 800; line-height: 1; }
.pricing-period { color: var(--text-muted); margin: 8px 0 16px; }
.pricing-free {
  background: rgba(212,175,55,0.1);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: var(--radius);
  padding: 12px;
  color: var(--gold);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 24px;
}
.pricing-features {
  list-style: none;
  text-align: left;
  margin-bottom: 32px;
}
.pricing-features li {
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  color: var(--text-muted);
}
.pricing-features li::before {
  content: "✓ ";
  color: var(--gold);
  font-weight: 700;
}
.pricing-features li:last-child { border-bottom: none; }

/* ── BENEFITS BAR ── */
.benefits-bar {
  background: rgba(212,175,55,0.08);
  border: 1px solid rgba(212,175,55,0.2);
  border-radius: var(--radius);
  padding: 20px 28px;
  margin-bottom: 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.benefit-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 500;
}
.benefit-item::before {
  content: "✓";
  color: var(--gold);
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── FORM (registration) ── */
.form-page {
  max-width: 560px;
  margin: 48px auto;
  padding: 0 24px;
}
.form-progress {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 32px;
}
.progress-step {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}
.progress-step.active { color: var(--gold); font-weight: 600; }
.progress-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}
.progress-step.active .progress-dot {
  background: var(--gold);
  border-color: var(--gold);
  color: #000;
}
.progress-step.done .progress-dot {
  background: var(--gold);
  border-color: var(--gold);
  color: #000;
}
.progress-line {
  flex: 1;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
}
.progress-line.filled { background: var(--gold); }

.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.form-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.form-card .form-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 28px;
}
.form-group {
  margin-bottom: 20px;
}
label {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}
input[type="text"],
input[type="email"],
input[type="password"],
input[type="tel"],
input[type="number"],
select,
textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-size: 1rem;
  min-height: 48px;
  transition: border-color 0.2s;
  appearance: none;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--gold);
}
.input-with-btn {
  display: flex;
  gap: 8px;
}
.input-with-btn input { flex: 1; }
.input-with-btn .btn { flex-shrink: 0; min-height: 48px; padding: 12px 20px; }

.company-data-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 20px;
  display: none;
}
.company-data-box.visible { display: block; }
.company-data-box summary {
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.company-data-box summary::after { content: "▾"; }
details[open] summary::after { content: "▴"; }
.company-data-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
  font-size: 0.85rem;
}
.company-data-field { color: var(--text-muted); }
.company-data-value { color: var(--text); font-weight: 500; }

.metals-select {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}
.metal-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.15s;
}
.metal-chip input { display: none; }
.metal-chip:hover { border-color: var(--gold); }
.metal-chip.selected {
  background: rgba(212,175,55,0.15);
  border-color: var(--gold);
  color: var(--gold);
}
.metal-chip-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: 1.5px solid currentColor;
  flex-shrink: 0;
}
.metal-chip.selected .metal-chip-dot {
  background: var(--gold);
  border-color: var(--gold);
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 0;
}
.checkbox-row input[type="checkbox"] {
  width: 20px;
  min-height: 20px;
  height: 20px;
  flex-shrink: 0;
  accent-color: var(--gold);
  margin-top: 2px;
}
.checkbox-row label {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
  cursor: pointer;
}
.checkbox-row .sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.form-step { display: block; }
.form-step.hidden { display: none; }

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 12px;
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 40px 24px;
  margin-top: 80px;
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-logo {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold);
}
.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  flex-wrap: wrap;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links a:hover { color: var(--text); }
.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 16px;
}

/* ── CTA BANNER ── */
.cta-banner {
  background: radial-gradient(ellipse 80% 100% at 50% 50%, rgba(212,175,55,0.12) 0%, transparent 70%);
  border-top: 1px solid var(--border);
  padding: 80px 24px;
  text-align: center;
}
.cta-banner h2 { font-size: clamp(1.5rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: 12px; }
.cta-banner p { color: var(--text-muted); margin-bottom: 32px; max-width: 480px; margin-left: auto; margin-right: auto; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }

  .hero { padding: 64px 20px 56px; }

  .stats-inner { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:last-child { border-bottom: none; }

  .how-panel.active { grid-template-columns: 1fr; }

  .value-grid { grid-template-columns: 1fr; }

  .form-card { padding: 24px 20px; }

  .metals-select { grid-template-columns: repeat(2, 1fr); }

  .company-data-grid { grid-template-columns: 1fr; }

  .footer-inner { flex-direction: column; align-items: flex-start; }

  .how-tabs { flex-wrap: wrap; }
}

@media (max-width: 360px) {
  .hero h1 { font-size: 1.8rem; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .metals-select { grid-template-columns: 1fr 1fr; }
}