/* ============================================================
   Nexus Pricing — Design System
   Palette: Deep Navy + Warm Gold + Slate
   Fonts: Syne (display) + Plus Jakarta Sans (body)
   ============================================================ */

:root {
  --navy-950: #050810;
  --navy-900: #0A0F1E;
  --navy-800: #111827;
  --navy-700: #1A2540;
  --navy-600: #1E2A45;
  --navy-500: #2A3A5C;
  --navy-400: #3D5080;

  --gold-500: #C9A84C;
  --gold-400: #D4B86A;
  --gold-300: #E2CC8E;
  --gold-glow: rgba(201, 168, 76, 0.25);
  --gold-glow-strong: rgba(201, 168, 76, 0.45);

  --text-primary: #EEF2FF;
  --text-secondary: #94A3B8;
  --text-muted: #4B5E7A;
  --text-gold: #C9A84C;

  --border: rgba(255, 255, 255, 0.07);
  --border-gold: rgba(201, 168, 76, 0.35);
  --border-gold-strong: rgba(201, 168, 76, 0.6);

  --green: #34D399;
  --red-muted: #4B5E7A;

  --font-display: 'Syne', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--navy-900);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
svg { display: block; }
ul { list-style: none; }

/* ── Background Mesh ── */
.bg-mesh {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}
.mesh-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.18;
  animation: orbDrift 12s ease-in-out infinite;
}
.mesh-orb--1 {
  width: 700px; height: 700px;
  background: radial-gradient(circle, #1E3A8A 0%, transparent 70%);
  top: -200px; left: -150px;
  animation-delay: 0s;
}
.mesh-orb--2 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--gold-500) 0%, transparent 70%);
  top: 20%; right: -100px;
  opacity: 0.1;
  animation-delay: -4s;
}
.mesh-orb--3 {
  width: 600px; height: 600px;
  background: radial-gradient(circle, #312E81 0%, transparent 70%);
  bottom: 0; left: 30%;
  animation-delay: -8s;
}
@keyframes orbDrift {
  0%, 100% { transform: translate(0, 0); }
  33%       { transform: translate(40px, -30px); }
  66%       { transform: translate(-20px, 20px); }
}

/* ── Nav ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 68px;
  background: rgba(10, 15, 30, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}
.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  color: var(--navy-900);
  font-weight: 800;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--text-primary); }
.nav-links a.active { color: var(--gold-400); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-ghost {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.btn-ghost:hover { color: var(--text-primary); }
.btn-primary {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--navy-900);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  padding: 8px 20px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  box-shadow: 0 0 20px var(--gold-glow);
}
.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 32px var(--gold-glow-strong);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ── Hero ── */
.hero {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 100px 24px 60px;
  max-width: 760px;
  margin: 0 auto;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--gold-400);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
}
.eyebrow-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--gold-400);
  box-shadow: 0 0 8px var(--gold-500);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.8); }
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.hero-title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--gold-500) 0%, var(--gold-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto 48px;
  line-height: 1.75;
  font-weight: 300;
}

/* ── Billing Toggle ── */
.billing-toggle {
  display: inline-flex;
  align-items: center;
  gap: 16px;
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 20px;
}
.toggle-btn {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 4px 0;
  transition: color var(--transition);
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  cursor: pointer;
}
.toggle-btn.active { color: var(--text-primary); }
.save-badge {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--navy-900);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  padding: 2px 8px;
  border-radius: 100px;
  letter-spacing: 0.04em;
}
.toggle-track {
  width: 44px; height: 24px;
  background: var(--navy-700);
  border: 1px solid var(--border);
  border-radius: 100px;
  position: relative;
  cursor: pointer;
  transition: background var(--transition);
}
.toggle-track.on {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-400));
  border-color: var(--gold-500);
  box-shadow: 0 0 12px var(--gold-glow);
}
.toggle-thumb {
  position: absolute;
  top: 3px; left: 3px;
  width: 16px; height: 16px;
  background: var(--text-secondary);
  border-radius: 50%;
  transition: transform var(--transition), background var(--transition);
}
.toggle-track.on .toggle-thumb {
  transform: translateX(20px);
  background: var(--navy-900);
}

/* ── Pricing Cards ── */
.pricing-section {
  position: relative;
  z-index: 1;
  padding: 20px 24px 80px;
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
  align-items: start;
}

.card {
  position: relative;
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px;
  transition: transform var(--transition-slow), box-shadow var(--transition-slow), border-color var(--transition);
  overflow: hidden;
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}
.card--starter:hover { border-color: rgba(255,255,255,0.15); }
.card--enterprise:hover { border-color: rgba(255,255,255,0.15); }

/* Featured card */
.card--featured {
  border-color: var(--border-gold);
  background: linear-gradient(160deg, rgba(201,168,76,0.06) 0%, var(--navy-800) 50%);
  transform: translateY(-12px);
  box-shadow: 0 0 60px rgba(201,168,76,0.12), 0 24px 60px rgba(0,0,0,0.4);
}
.card--featured:hover {
  transform: translateY(-18px);
  border-color: var(--border-gold-strong);
  box-shadow: 0 0 80px rgba(201,168,76,0.2), 0 32px 80px rgba(0,0,0,0.5);
}

/* Glow effect behind featured card */
.card-glow {
  position: absolute;
  top: -40px; left: 50%;
  transform: translateX(-50%);
  width: 200px; height: 200px;
  background: radial-gradient(circle, var(--gold-glow-strong) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(30px);
  opacity: 0.6;
}

/* Popular badge */
.popular-badge {
  position: absolute;
  top: -1px; left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--navy-900);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  padding: 5px 16px;
  border-radius: 0 0 12px 12px;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.popular-badge svg { width: 12px; height: 12px; }

/* Card header */
.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
  padding-top: 8px;
}
.card--featured .card-header { padding-top: 20px; }

.tier-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.tier-icon svg { width: 22px; height: 22px; }
.tier-icon--starter {
  background: rgba(99, 179, 237, 0.1);
  border: 1px solid rgba(99, 179, 237, 0.2);
  color: #63B3ED;
}
.tier-icon--pro {
  background: rgba(201, 168, 76, 0.12);
  border: 1px solid rgba(201, 168, 76, 0.3);
  color: var(--gold-400);
}
.tier-icon--enterprise {
  background: rgba(167, 139, 250, 0.1);
  border: 1px solid rgba(167, 139, 250, 0.2);
  color: #A78BFA;
}

.tier-name {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.tier-tagline {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* Price */
.card-price {
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.price-display {
  display: flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 6px;
}
.currency {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-secondary);
  align-self: flex-start;
  margin-top: 6px;
}
.amount {
  font-family: var(--font-display);
  font-size: 3.25rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.04em;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.amount.flip {
  transform: translateY(-4px);
  opacity: 0;
}
.period {
  font-size: 1rem;
  color: var(--text-muted);
  margin-left: 2px;
}
.price-display--custom { align-items: center; }
.amount-custom {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
}
.price-note {
  font-size: 0.8125rem;
  color: var(--text-muted);
  transition: opacity 0.2s;
}

/* CTA buttons */
.card-cta {
  display: block;
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 13px 24px;
  border-radius: var(--radius-md);
  margin-bottom: 28px;
  transition: all var(--transition);
  letter-spacing: 0.01em;
}
.btn-outline {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.04);
  transform: translateY(-1px);
}
.btn-gold {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  color: var(--navy-900);
  box-shadow: 0 0 24px var(--gold-glow);
}
.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px var(--gold-glow-strong);
}

/* Feature list */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: 11px;
}
.feature-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  line-height: 1.4;
}
.feature-item--included { color: var(--text-secondary); }
.feature-item--excluded { color: var(--text-muted); }
.check-icon {
  width: 16px; height: 16px;
  flex-shrink: 0;
  color: var(--green);
}
.x-icon {
  width: 16px; height: 16px;
  flex-shrink: 0;
  color: var(--text-muted);
}

/* ── Comparison Table ── */
.comparison-section {
  position: relative;
  z-index: 1;
  padding: 80px 24px;
  background: linear-gradient(180deg, transparent 0%, rgba(17,24,39,0.6) 100%);
}
.comparison-inner {
  max-width: 1000px;
  margin: 0 auto;
}
.comparison-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  text-align: center;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.03em;
}
.comparison-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 48px;
}
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
.comparison-table thead tr {
  background: var(--navy-800);
  border-bottom: 1px solid var(--border);
}
.comparison-table th {
  padding: 20px 24px;
  text-align: center;
  font-family: var(--font-display);
  font-weight: 600;
}
.col-feature { text-align: left; width: 35%; }
.col-tier { width: 21.67%; }
.col-tier--featured {
  background: rgba(201,168,76,0.06);
  border-left: 1px solid var(--border-gold);
  border-right: 1px solid var(--border-gold);
}
.th-tier-name {
  display: block;
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.th-price {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 400;
  font-family: var(--font-body);
}
.th-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--navy-900);
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  padding: 2px 8px;
  border-radius: 100px;
  margin-bottom: 6px;
  letter-spacing: 0.04em;
}

.comparison-table tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.comparison-table tbody tr:last-child { border-bottom: none; }
.comparison-table tbody tr:hover { background: rgba(255,255,255,0.02); }

.comparison-table td {
  padding: 14px 24px;
  text-align: center;
  color: var(--text-secondary);
  vertical-align: middle;
}
.comparison-table td:first-child { text-align: left; }
.col-featured {
  background: rgba(201,168,76,0.04);
  border-left: 1px solid var(--border-gold);
  border-right: 1px solid var(--border-gold);
}
.feature-name { color: var(--text-primary); font-weight: 500; }

.row-group-header td {
  background: var(--navy-700);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 10px 24px;
  text-align: left !important;
}

.tbl-check {
  width: 18px; height: 18px;
  color: var(--green);
  margin: 0 auto;
}
.tbl-x {
  width: 18px; height: 18px;
  color: var(--text-muted);
  margin: 0 auto;
}

/* ── Trust Section ── */
.trust-section {
  position: relative;
  z-index: 1;
  padding: 60px 24px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.trust-inner {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.trust-item {
  text-align: center;
}
.trust-item svg {
  width: 28px; height: 28px;
  color: var(--gold-400);
  margin: 0 auto 12px;
}
.trust-item h3 {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}
.trust-item p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ── CTA Section ── */
.cta-section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
  text-align: center;
}
.cta-inner { max-width: 600px; margin: 0 auto; }
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.cta-subtitle {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
}
.cta-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}
.btn-lg {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  padding: 15px 36px;
  border-radius: var(--radius-md);
  transition: all var(--transition);
}
.btn-gold.btn-lg {
  background: linear-gradient(135deg, var(--gold-500), var(--gold-300));
  color: var(--navy-900);
  box-shadow: 0 0 32px var(--gold-glow);
}
.btn-gold.btn-lg:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 50px var(--gold-glow-strong);
}
.btn-ghost-lg {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  transition: color var(--transition);
}
.btn-ghost-lg:hover { color: var(--text-primary); }

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 24px 40px;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand p {
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: 8px;
}
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-secondary); }

/* ── Animations ── */
.card, .trust-item, .comparison-inner {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s cubic-bezier(0.4,0,0.2,1), transform 0.6s cubic-bezier(0.4,0,0.2,1);
}
.card.visible, .trust-item.visible, .comparison-inner.visible {
  opacity: 1;
  transform: translateY(0);
}
.card--featured.visible { transform: translateY(-12px); }
.card--featured:hover.visible { transform: translateY(-18px); }

.cards-grid .card:nth-child(1) { transition-delay: 0.05s; }
.cards-grid .card:nth-child(2) { transition-delay: 0.15s; }
.cards-grid .card:nth-child(3) { transition-delay: 0.25s; }
.trust-inner .trust-item:nth-child(1) { transition-delay: 0.05s; }
.trust-inner .trust-item:nth-child(2) { transition-delay: 0.1s; }
.trust-inner .trust-item:nth-child(3) { transition-delay: 0.15s; }
.trust-inner .trust-item:nth-child(4) { transition-delay: 0.2s; }

/* Hero fade-in */
.hero-eyebrow, .hero-title, .hero-subtitle, .billing-toggle {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeUp 0.7s cubic-bezier(0.4,0,0.2,1) forwards;
}
.hero-eyebrow  { animation-delay: 0.1s; }
.hero-title    { animation-delay: 0.2s; }
.hero-subtitle { animation-delay: 0.3s; }
.billing-toggle { animation-delay: 0.4s; }
@keyframes heroFadeUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: 1fr 1fr; }
  .card--enterprise { grid-column: span 2; max-width: 480px; margin: 0 auto; width: 100%; }
  .trust-inner { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .nav { padding: 0 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 68px; left: 0; right: 0;
    background: rgba(10,15,30,0.97);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 20px 24px;
    gap: 20px;
    z-index: 99;
  }
  .nav-links.nav-links--open { display: flex; }
  .nav-actions .btn-ghost { display: none; }
  .nav-hamburger { display: flex; }

  .cards-grid { grid-template-columns: 1fr; max-width: 420px; margin: 0 auto; }
  .card--featured { transform: none; }
  .card--featured:hover { transform: translateY(-6px); }
  .card--featured.visible { transform: none; }
  .card--enterprise { grid-column: span 1; max-width: 100%; }

  .trust-inner { grid-template-columns: repeat(2, 1fr); gap: 24px; }

  .comparison-table th, .comparison-table td { padding: 12px 14px; font-size: 0.8125rem; }
}

@media (max-width: 480px) {
  .hero { padding: 80px 20px 48px; }
  .billing-toggle { flex-wrap: wrap; justify-content: center; gap: 12px; }
  .trust-inner { grid-template-columns: 1fr 1fr; }
  .cta-actions { flex-direction: column; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}