/* ============================================================
   LANDING PAGE STYLES - TRO
   File: assets/css/landing.css
   ============================================================ */

/* ============== HEADER ============== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--t-base);
}
[data-theme="dark"] .site-header { background: rgba(11, 18, 32, 0.82); }
[data-theme="emerald"] .site-header { background: rgba(240, 253, 244, 0.82); }
[data-theme="sunset"] .site-header { background: rgba(255, 247, 237, 0.82); }
[data-theme="royal"] .site-header { background: rgba(250, 245, 255, 0.82); }

.nav { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: var(--space-8); }
.brand { display: inline-flex; align-items: center; gap: 12px; color: var(--text-primary); }
.brand-mark { display: inline-flex; }
.brand-text { display: inline-flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-family: var(--font-display); font-size: 1.0625rem; font-weight: 700; letter-spacing: -0.02em; }
.brand-text small { font-size: 0.6875rem; color: var(--text-muted); font-weight: 500; letter-spacing: 0.04em; text-transform: uppercase; }

.nav-links { display: flex; gap: var(--space-6); flex: 1; justify-content: center; }
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  transition: color var(--t-fast);
}
.nav-links a::after {
  content: '';
  position: absolute; bottom: 0; left: 0;
  width: 0; height: 2px;
  background: var(--brand-gradient);
  transition: width var(--t-base);
  border-radius: 2px;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-actions { display: flex; align-items: center; gap: var(--space-3); }

/* Mobile nav */
.mobile-nav {
  display: none;
  padding: var(--space-4) var(--space-6) var(--space-6);
  border-top: 1px solid var(--border-subtle);
  background: var(--surface-1);
}
.mobile-nav a { display: block; padding: 12px 0; color: var(--text-secondary); font-weight: 500; border-bottom: 1px solid var(--border-subtle); }
.mobile-nav a.btn { border: none; }
body.mobile-nav-open .mobile-nav { display: block; }

/* ============== HERO ============== */
.hero {
  position: relative;
  padding: var(--space-20) 0 var(--space-16);
  overflow: hidden;
  background:
    radial-gradient(at 15% 20%, var(--accent-primary-soft) 0px, transparent 40%),
    radial-gradient(at 85% 10%, rgba(139, 92, 246, 0.12) 0px, transparent 40%),
    radial-gradient(at 50% 100%, rgba(16, 185, 129, 0.08) 0px, transparent 40%);
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--border-subtle) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-subtle) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  opacity: 0.4;
  pointer-events: none;
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: center;
}
@media (max-width: 1024px) { .hero-inner { grid-template-columns: 1fr; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  box-shadow: var(--shadow-xs);
}
.eyebrow::before {
  content: ''; width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--success);
  animation: pulse 2s ease-in-out infinite;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.18);
}

.hero h1 {
  font-size: clamp(2.25rem, 4.5vw, 4.25rem);
  line-height: 1.05;
  margin: var(--space-5) 0;
  font-weight: 800;
  letter-spacing: -0.04em;
}
.hero h1 em {
  font-style: normal;
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.6;
  margin-bottom: var(--space-8);
}
.hero-cta { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.hero-stats {
  display: flex; gap: var(--space-8);
  margin-top: var(--space-10);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-subtle);
  flex-wrap: wrap;
}

/* Hero visual - 3D orbit graphic */
.hero-visual {
  position: relative;
  aspect-ratio: 1;
  display: flex; align-items: center; justify-content: center;
}
.orbit-container {
  position: relative;
  width: 100%; max-width: 480px;
  aspect-ratio: 1;
}
.orbit-ring {
  position: absolute; inset: 0;
  border: 1.5px dashed var(--border-default);
  border-radius: 50%;
  opacity: 0.5;
}
.orbit-ring-1 { animation: rotate 40s linear infinite; }
.orbit-ring-2 { inset: 12%; animation: rotate 30s linear infinite reverse; border-color: var(--accent-primary); opacity: 0.3; }
.orbit-ring-3 { inset: 24%; animation: rotate 20s linear infinite; border-color: var(--accent-secondary); opacity: 0.35; }
@keyframes rotate { to { transform: rotate(360deg); } }

.orbit-core {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 40%; aspect-ratio: 1;
  background: var(--brand-gradient);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-2xl), 0 0 100px rgba(14, 165, 233, 0.5);
  animation: float 6s ease-in-out infinite;
}
.orbit-core svg { width: 50%; height: 50%; color: white; }
.orbit-core::before {
  content: ''; position: absolute; inset: -20%;
  background: var(--brand-gradient);
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.4;
  z-index: -1;
  animation: pulse 3s ease-in-out infinite;
}

.orbit-planet {
  position: absolute;
  top: 50%; left: 50%;
  width: 54px; height: 54px;
  background: var(--surface-1);
  border: 2px solid var(--accent-primary);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-lg);
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--accent-primary);
}
.orbit-planet-1 { animation: orbit-1 20s linear infinite; }
.orbit-planet-2 { animation: orbit-2 28s linear infinite; animation-delay: -5s; }
.orbit-planet-3 { animation: orbit-3 36s linear infinite; animation-delay: -12s; }
@keyframes orbit-1 {
  from { transform: translate(-50%, -50%) rotate(0) translateX(140px) rotate(0); }
  to   { transform: translate(-50%, -50%) rotate(360deg) translateX(140px) rotate(-360deg); }
}
@keyframes orbit-2 {
  from { transform: translate(-50%, -50%) rotate(0) translateX(185px) rotate(0); }
  to   { transform: translate(-50%, -50%) rotate(-360deg) translateX(185px) rotate(360deg); }
}
@keyframes orbit-3 {
  from { transform: translate(-50%, -50%) rotate(0) translateX(230px) rotate(0); }
  to   { transform: translate(-50%, -50%) rotate(360deg) translateX(230px) rotate(-360deg); }
}

/* ============== SECTION BASE ============== */
.section { padding: var(--space-20) 0; position: relative; }
.section-header { text-align: center; max-width: 720px; margin: 0 auto var(--space-12); }
.section-header .eyebrow { margin-bottom: var(--space-4); }
.section-header h2 { margin-bottom: var(--space-4); }
.section-header p { color: var(--text-tertiary); font-size: 1.0625rem; }

/* ============== HOW IT WORKS ============== */
.how-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
  position: relative;
}
@media (max-width: 1024px) { .how-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .how-grid { grid-template-columns: 1fr; } }

.step {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  position: relative;
  transition: all var(--t-base);
  overflow: hidden;
}
.step::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--brand-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--t-slow);
}
.step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}
.step:hover::before { transform: scaleX(1); }
.step-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  border-radius: var(--radius-md);
  font-weight: 800;
  font-size: 1.125rem;
  font-family: var(--font-numeric);
  margin-bottom: var(--space-4);
}
.step h4 { font-size: 1.125rem; margin-bottom: var(--space-2); }
.step p { font-size: 0.875rem; color: var(--text-tertiary); line-height: 1.55; }

/* ============== REWARDS ============== */
.rewards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 1024px) { .rewards-grid { grid-template-columns: 1fr; } }

.reward-card {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: relative;
  transition: all var(--t-slow);
  overflow: hidden;
  transform-style: preserve-3d;
}
.reward-card::before {
  content: '';
  position: absolute;
  top: -40%; right: -20%;
  width: 280px; height: 280px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.2;
  transition: opacity var(--t-slow);
}
.reward-card:hover {
  transform: perspective(1200px) rotateX(-3deg) rotateY(3deg) translateY(-6px);
  box-shadow: -20px 30px 60px rgba(14, 165, 233, 0.12), var(--shadow-xl);
  border-color: transparent;
}
.reward-card:hover::before { opacity: 0.4; }
.reward-card.featured {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  color: white;
  border: none;
}
.reward-card.featured h4, .reward-card.featured .reward-amount { color: white; }
.reward-card.featured p { color: rgba(255,255,255,0.85); }
.reward-card.featured::before { background: rgba(255,255,255,0.3); }

.reward-card-1::before { background: #0EA5E9; }
.reward-card-2::before { background: #8B5CF6; }
.reward-card-3::before { background: #10B981; }

.reward-icon {
  width: 56px; height: 56px;
  border-radius: var(--radius-md);
  background: var(--accent-primary-soft);
  color: var(--accent-primary);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--space-4);
  position: relative; z-index: 1;
}
.reward-card.featured .reward-icon { background: rgba(255,255,255,0.18); color: white; }
.reward-amount {
  font-family: var(--font-numeric);
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2);
  display: flex; align-items: baseline; gap: 6px;
  position: relative; z-index: 1;
}
.reward-amount small { font-size: 1rem; font-weight: 600; opacity: 0.7; }
.reward-card p { position: relative; z-index: 1; }

/* ============== BUSINESS MODEL (table) ============== */
.biz-table {
  max-width: 880px;
  margin: 0 auto;
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.biz-row {
  display: grid;
  grid-template-columns: 200px 1fr auto;
  gap: var(--space-6);
  padding: var(--space-5) var(--space-6);
  align-items: center;
  border-bottom: 1px solid var(--border-subtle);
  transition: background var(--t-fast);
}
.biz-row:last-child { border-bottom: none; }
.biz-row:hover { background: var(--surface-2); }
.biz-row strong { color: var(--text-primary); }
.biz-row .val {
  font-family: var(--font-numeric);
  font-weight: 700;
  color: var(--accent-primary);
  background: var(--accent-primary-soft);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
@media (max-width: 640px) {
  .biz-row { grid-template-columns: 1fr; gap: var(--space-2); }
}

/* ============== CTA BAND ============== */
.cta-band {
  position: relative;
  background: var(--brand-gradient);
  border-radius: var(--radius-2xl);
  padding: var(--space-16) var(--space-8);
  text-align: center;
  color: white;
  overflow: hidden;
  margin: var(--space-8) 0;
}
.cta-band::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(at 20% 30%, rgba(255,255,255,0.2) 0px, transparent 50%),
    radial-gradient(at 80% 70%, rgba(255,255,255,0.15) 0px, transparent 50%);
}
.cta-band h2 { color: white; margin-bottom: var(--space-3); position: relative; }
.cta-band p { color: rgba(255,255,255,0.9); max-width: 560px; margin: 0 auto var(--space-6); position: relative; }
.cta-band .btn-primary {
  background: white;
  color: var(--accent-primary);
  position: relative;
}
.cta-band .btn-primary:hover { background: #f8fafc; color: var(--accent-primary-hover); }

/* ============== FAQ ============== */
.faq-list { max-width: 760px; margin: 0 auto; }
.faq-item {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-3);
  overflow: hidden;
  transition: all var(--t-base);
}
.faq-item:hover { border-color: var(--border-default); }
.faq-item[open] { box-shadow: var(--shadow-md); border-color: var(--accent-primary); }
.faq-item summary {
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  list-style: none;
  font-weight: 600;
  color: var(--text-primary);
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--space-4);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--accent-primary);
  transition: transform var(--t-base);
  font-weight: 300;
  line-height: 1;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-answer { padding: 0 var(--space-6) var(--space-5); color: var(--text-secondary); line-height: 1.65; }

/* ============== FOOTER ============== */
.site-footer {
  background: var(--surface-2);
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 2fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid var(--border-subtle);
}
@media (max-width: 768px) { .footer-top { grid-template-columns: 1fr; gap: var(--space-8); } }
.footer-cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 480px) { .footer-cols { grid-template-columns: 1fr 1fr; } }
.footer-cols h6 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}
.footer-cols a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 6px 0;
  transition: color var(--t-fast);
}
.footer-cols a:hover { color: var(--accent-primary); }
.footer-bottom {
  display: flex; justify-content: space-between;
  padding-top: var(--space-6);
  color: var(--text-muted);
  flex-wrap: wrap; gap: var(--space-3);
}

/* ============== AUTH PAGES ============== */
.auth-wrap {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  background: var(--bg-primary);
}
@media (max-width: 960px) { .auth-wrap { grid-template-columns: 1fr; } }
.auth-visual {
  position: relative;
  background: var(--brand-gradient);
  overflow: hidden;
  display: flex;
  align-items: center; justify-content: center;
  padding: var(--space-12);
  color: white;
}
@media (max-width: 960px) { .auth-visual { display: none; } }
.auth-visual::before {
  content: '';
  position: absolute; inset: 0;
  background:
    radial-gradient(at 30% 20%, rgba(255,255,255,0.2) 0px, transparent 50%),
    radial-gradient(at 80% 80%, rgba(255,255,255,0.15) 0px, transparent 50%);
}
.auth-visual-inner { position: relative; max-width: 440px; }
.auth-visual h2 { color: white; font-size: 2.5rem; letter-spacing: -0.03em; margin-bottom: var(--space-4); }
.auth-visual p { color: rgba(255,255,255,0.9); font-size: 1.0625rem; }
.auth-card {
  display: flex; align-items: center; justify-content: center;
  padding: var(--space-12) var(--space-6);
  min-height: 100vh;
}
.auth-card-inner { width: 100%; max-width: 440px; }
.auth-card-inner .brand { margin-bottom: var(--space-8); }

/* Step indicator */
.step-indicator {
  display: flex; gap: var(--space-2);
  margin-bottom: var(--space-8);
}
.step-indicator .step-dot {
  flex: 1;
  height: 4px;
  background: var(--border-subtle);
  border-radius: 2px;
  transition: background var(--t-base);
}
.step-indicator .step-dot.active { background: var(--brand-gradient); }
.step-indicator .step-dot.done { background: var(--success); }

/* Reveal on scroll */
[data-reveal] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 700ms var(--t-ease), transform 700ms var(--t-ease);
}
[data-reveal].revealed { opacity: 1; transform: translateY(0); }
[data-reveal][data-reveal-delay="1"] { transition-delay: 100ms; }
[data-reveal][data-reveal-delay="2"] { transition-delay: 200ms; }
[data-reveal][data-reveal-delay="3"] { transition-delay: 300ms; }
[data-reveal][data-reveal-delay="4"] { transition-delay: 400ms; }