/* ========================
   CSS VARIABLES
   ======================== */
:root {
  --bg: #0A0A0A;
  --bg-elevated: #111111;
  --bg-card: #141414;
  --gold: #D4A843;
  --gold-dim: rgba(212, 168, 67, 0.15);
  --gold-glow: rgba(212, 168, 67, 0.08);
  --text: #E8E4D9;
  --text-muted: #888888;
  --text-dim: #555555;
  --border: rgba(212, 168, 67, 0.12);
  --border-bright: rgba(212, 168, 67, 0.25);
}

/* ========================
   RESET & BASE
   ======================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ========================
   TYPOGRAPHY
   ======================== */
h1, h2, h3, h4 {
  font-family: 'Sora', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

overline, .overline {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
}

.section-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label::before {
  content: '';
  display: inline-block;
  width: 24px;
  height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}

.section-title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 48px;
}

/* ========================
   HERO
   ======================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 6vw 80px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.grid-lines {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212, 168, 67, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 168, 67, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}

.glow-orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(212, 168, 67, 0.08) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.glow-orb-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(212, 168, 67, 0.05) 0%, transparent 70%);
  bottom: 0;
  left: 20%;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.overline {
  margin-bottom: 24px;
}

.headline {
  font-family: 'Sora', sans-serif;
  font-size: clamp(42px, 5.5vw, 72px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 28px;
  display: flex;
  flex-direction: column;
}

.headline .line-2 {
  color: var(--gold);
  font-style: italic;
  font-weight: 700;
}

.subhead {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 480px;
}

/* HERO VISUAL - PVD Metal Plate */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

.metal-plate {
  position: relative;
  width: 100%;
  max-width: 440px;
  background: linear-gradient(145deg, #1a1a1a 0%, #0d0d0d 50%, #1a1a1a 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  overflow: hidden;
}

.metal-plate::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(212,168,67,0.06) 0%, transparent 40%, transparent 60%, rgba(212,168,67,0.03) 100%);
  pointer-events: none;
}

.plate-shine {
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 100px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.04), transparent);
  transform: rotate(-15deg);
  animation: shimmer 4s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { transform: translateX(-100%) rotate(-15deg); }
  50% { transform: translateX(100%) rotate(-15deg); }
}

.plate-texture {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.color-bar {
  height: 52px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
}

.color-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: rgba(255,255,255,0.1);
}

.bar-gold  { background: linear-gradient(135deg, #C9A84C 0%, #A8863A 100%); }
.bar-rose  { background: linear-gradient(135deg, #B87352 0%, #A05A3E 100%); }
.bar-bronze{ background: linear-gradient(135deg, #8C5E3C 0%, #6E4A2E 100%); }
.bar-black  { background: linear-gradient(135deg, #2A2A2A 0%, #1A1A1A 100%); border-color: rgba(255,255,255,0.08); }
.bar-champagne { background: linear-gradient(135deg, #C4A96B 0%, #A8944F 100%); }

.bar-label {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,0.95);
  letter-spacing: 0.02em;
}

.bar-width {
  font-family: 'DM Sans', sans-serif;
  font-size: 11px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.05em;
}

/* ========================
   HOW IT WORKS
   ======================== */
.howitworks {
  padding: 100px 6vw;
  position: relative;
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: 20px;
  align-items: start;
}

.process-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  position: relative;
  transition: border-color 0.3s ease;
}

.process-card:hover {
  border-color: var(--border-bright);
}

.card-num {
  font-family: 'Sora', sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--gold-dim);
  line-height: 1;
  margin-bottom: 16px;
  -webkit-text-stroke: 1px rgba(212, 168, 67, 0.3);
}

.process-card h3 {
  font-family: 'Sora', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.process-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

.process-arrow {
  display: flex;
  align-items: center;
  padding-top: 80px;
}

/* ========================
   FEATURES
   ======================== */
.features {
  padding: 100px 6vw;
  background: var(--bg-elevated);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.feature-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  background: var(--gold-glow);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-family: 'Sora', sans-serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 12px;
}

.feature-card p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ========================
   DIFFERENCE
   ======================== */
.difference {
  padding: 100px 6vw;
}

.diff-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  max-width: 1400px;
  margin: 0 auto;
}

.diff-title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
  margin: 24px 0 24px;
}

.diff-body {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.75;
  margin-bottom: 16px;
}

.diff-specs {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.spec-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 14px;
}

.spec-label {
  color: var(--text-muted);
}

.spec-check {
  color: var(--gold);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.05em;
}

/* Comparison table */
.comparison {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
}

.comp-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
}

.comp-col {
  padding: 16px 24px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.col-before { color: var(--text-dim); }
.col-after { color: var(--gold); }

.comp-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.comp-row:last-child { border-bottom: none; }

.comp-item {
  padding: 16px 24px;
  font-size: 13px;
  line-height: 1.55;
}

.before-item {
  color: var(--text-muted);
  background: rgba(255,255,255,0.02);
}

.after-item {
  color: var(--text);
  border-left: 1px solid var(--border);
}

/* ========================
   CLOSING
   ======================== */
.closing {
  padding: 100px 6vw 120px;
  background: var(--bg-elevated);
  position: relative;
  overflow: hidden;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.3;
}

.closing-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.closing-badge {
  display: inline-block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--border);
  background: var(--gold-dim);
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 32px;
}

.closing-title {
  font-family: 'Sora', sans-serif;
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.closing-sub {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 56px;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.closing-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.stat {
  text-align: center;
  padding: 0 40px;
}

.stat-val {
  font-family: 'Sora', sans-serif;
  font-size: 48px;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 160px;
  line-height: 1.4;
}

.stat-divider {
  width: 1px;
  height: 60px;
  background: var(--border);
}

/* ========================
   FOOTER
   ======================== */
.footer {
  padding: 60px 6vw;
  border-top: 1px solid var(--border);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.footer-logo {
  width: 36px;
  height: 36px;
  background: var(--gold);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', sans-serif;
  font-size: 14px;
  font-weight: 800;
  color: #0A0A0A;
}

.footer-name {
  font-family: 'Sora', sans-serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}

.footer-tagline {
  font-size: 14px;
  color: var(--text-muted);
}

.footer-meta {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

/* ========================
   RESPONSIVE
   ======================== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 60px; }
  .hero-visual { display: none; }
  .process-grid { grid-template-columns: 1fr; }
  .process-arrow { display: none; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .diff-layout { grid-template-columns: 1fr; gap: 48px; }
  .closing-stats { flex-direction: column; gap: 32px; }
  .stat-divider { display: none; }
}

@media (max-width: 640px) {
  .hero { padding: 80px 5vw 60px; }
  .howitworks, .features, .difference, .closing, .footer { padding: 60px 5vw; }
  .features-grid { grid-template-columns: 1fr; }
  .headline { font-size: clamp(36px, 9vw, 56px); }
  .stat-val { font-size: 36px; }
}