/* ============================================================
   0065 - HHPoker Theme Styles
   Color Scheme: Slate-800 dark gray + Cyan-400 accent
   Dark Tech/Sci-Fi Style
   ============================================================ */

/* === CSS Custom Properties === */
:root {
  --bg-dark: #1e293b;
  --bg-darker: #0f172a;
  --bg-card: #1e293bcc;
  --accent: #22d3ee;
  --accent-glow: rgba(34, 211, 238, 0.5);
  --accent-dim: rgba(34, 211, 238, 0.15);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: rgba(34, 211, 238, 0.3);
  --font-cn: 'Microsoft YaHei', 'PingFang SC', 'Hiragino Sans GB', sans-serif;
  --transition-speed: 0.3s;
}

/* === Reset & Base === */
* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-darker);
  color: var(--text-primary);
  font-family: var(--font-cn);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--accent); text-decoration: none; transition: color var(--transition-speed); }
a:hover { color: #67e8f9; text-shadow: 0 0 10px var(--accent-glow); }

img { max-width: 100%; height: auto; display: block; }

/* === Utility Classes === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section-padding { padding: 80px 0; }
.text-accent { color: var(--accent); }
.text-gradient {
  background: linear-gradient(135deg, #22d3ee 0%, #3b82f6 50%, #8b5cf6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.glow-text {
  text-shadow: 0 0 20px var(--accent-glow), 0 0 40px rgba(34, 211, 238, 0.3);
}
.section-title {
  font-size: 2.2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}
.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
}

/* ============================================================
   NAVBAR - Dark semi-transparent with glowing bottom border
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 2px solid transparent;
  box-shadow: 0 1px 0 0 var(--accent-dim), 0 4px 20px rgba(34, 211, 238, 0.08);
  transition: all var(--transition-speed);
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.95);
  box-shadow: 0 1px 0 0 rgba(34, 211, 238, 0.4), 0 4px 30px rgba(34, 211, 238, 0.15);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo .logo-icon {
  font-size: 2rem;
  color: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 5px;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  padding: 8px 18px;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-speed);
  position: relative;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
  text-shadow: 0 0 8px var(--accent-glow);
}

.nav-cta-btn {
  background: linear-gradient(135deg, #22d3ee, #06b6d4);
  color: #0f172a !important;
  font-weight: 700 !important;
  padding: 10px 22px !important;
  border-radius: 25px !important;
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.4);
  transition: all var(--transition-speed) !important;
}

.nav-cta-btn:hover {
  box-shadow: 0 0 35px rgba(34, 211, 238, 0.6) !important;
  transform: translateY(-2px);
  background: linear-gradient(135deg, #67e8f9, #22d3ee) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  z-index: 1001;
  background: none;
  border: none;
  padding: 5px;
}

.hamburger span {
  width: 28px;
  height: 3px;
  background: var(--accent);
  border-radius: 3px;
  transition: all var(--transition-speed);
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(6px, 6px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(6px, -6px); }

/* ============================================================
   HERO - Dark bg + particle mesh + gradient title
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 120px 20px 80px;
  background: radial-gradient(ellipse at center, #1e293b 0%, #0f172a 70%);
}

/* Grid mesh overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(34, 211, 238, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 211, 238, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridPulse 4s ease-in-out infinite;
}

@keyframes gridPulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* Particle dots */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(34, 211, 238, 0.4) 1px, transparent 1px),
    radial-gradient(circle, rgba(59, 130, 246, 0.3) 1px, transparent 1px);
  background-size: 80px 80px, 120px 120px;
  background-position: 0 0, 40px 40px;
  animation: particleDrift 20s linear infinite;
}

@keyframes particleDrift {
  0% { background-position: 0 0, 40px 40px; }
  100% { background-position: 80px 80px, 160px 160px; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 20px;
  border: 1px solid var(--accent-glow);
  border-radius: 25px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 30px;
  background: var(--accent-dim);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: 30px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition-speed);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, #22d3ee, #06b6d4);
  color: #0f172a;
  box-shadow: 0 0 25px rgba(34, 211, 238, 0.4);
}

.btn-primary:hover {
  box-shadow: 0 0 45px rgba(34, 211, 238, 0.6);
  transform: translateY(-3px);
  color: #0f172a;
}

.btn-outline {
  border: 2px solid var(--accent);
  color: var(--accent);
  background: transparent;
  box-shadow: 0 0 10px var(--accent-dim);
}

.btn-outline:hover {
  background: var(--accent-dim);
  box-shadow: 0 0 30px var(--accent-glow);
  transform: translateY(-3px);
}

/* ============================================================
   HEXAGON / HONEYCOMB LAYOUT
   ============================================================ */
.features {
  background: var(--bg-darker);
  position: relative;
}

.hex-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  max-width: 1000px;
  margin: 0 auto;
  gap: 0;
}

.hex-item {
  width: 280px;
  height: 320px;
  position: relative;
  margin: 10px 5px;
}

.hex-card {
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #1e293b, #0f172a);
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 30px;
  border: 2px solid rgba(34, 211, 238, 0.2);
  transition: all 0.4s ease;
  position: relative;
  cursor: pointer;
}

.hex-card::before {
  content: '';
  position: absolute;
  inset: 0;
  clip-path: polygon(50% 0%, 100% 25%, 100% 75%, 50% 100%, 0% 75%, 0% 25%);
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.1), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.hex-card:hover {
  transform: scale(1.05);
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-dim), 0 0 80px rgba(34, 211, 238, 0.1);
}

.hex-card:hover::before { opacity: 1; }

.hex-icon {
  font-size: 2.5rem;
  color: var(--accent);
  margin-bottom: 15px;
  filter: drop-shadow(0 0 10px var(--accent-glow));
  position: relative;
  z-index: 1;
}

.hex-card h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin-bottom: 8px;
  position: relative;
  z-index: 1;
}

.hex-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  position: relative;
  z-index: 1;
  line-height: 1.5;
}

/* Honeycomb row offset */
.hex-row-offset {
  transform: translateX(-145px);
}

@media (max-width: 960px) {
  .hex-row-offset { transform: none; }
  .hex-item { width: 230px; height: 270px; }
  .hex-card { padding: 30px 20px; }
  .hex-icon { font-size: 2rem; }
  .hex-card h3 { font-size: 1rem; }
}

@media (max-width: 640px) {
  .hex-item { width: 200px; height: 240px; }
}

/* ============================================================
   STATS - Glowing numbers + progress bars
   ============================================================ */
.stats {
  background: linear-gradient(180deg, #0f172a, #1e293b);
  position: relative;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
}

.stat-item {
  text-align: center;
  padding: 30px 20px;
  background: rgba(30, 41, 59, 0.6);
  border-radius: 16px;
  border: 1px solid rgba(34, 211, 238, 0.1);
  transition: all var(--transition-speed);
}

.stat-item:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 0 30px var(--accent-dim);
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow), 0 0 40px rgba(34, 211, 238, 0.4);
  line-height: 1;
}

.stat-number .suffix {
  font-size: 1.5rem;
  margin-left: 2px;
}

.stat-label {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-top: 10px;
}

.stat-bar-container {
  margin-top: 20px;
  background: rgba(15, 23, 42, 0.8);
  border-radius: 10px;
  height: 8px;
  overflow: hidden;
}

.stat-bar-fill {
  height: 100%;
  border-radius: 10px;
  background: linear-gradient(90deg, #22d3ee, #3b82f6);
  box-shadow: 0 0 10px var(--accent-glow);
  width: 0;
  transition: width 1.5s ease-out;
}

/* ============================================================
   TESTIMONIALS - 3D Flip Card
   ============================================================ */
.testimonials {
  background: var(--bg-darker);
  position: relative;
}

.flip-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
  perspective: 1500px;
}

.flip-card {
  height: 380px;
  perspective: 1000px;
}

.flip-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.flip-card:hover .flip-card-inner {
  transform: rotateY(180deg);
}

.flip-card-front,
.flip-card-back {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 20px;
  padding: 35px 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  border: 1px solid rgba(34, 211, 238, 0.15);
}

.flip-card-front {
  background: linear-gradient(145deg, #1e293b, #0f172a);
  text-align: center;
  align-items: center;
}

.flip-card-front .flip-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--accent);
  box-shadow: 0 0 20px var(--accent-dim);
  margin-bottom: 20px;
}

.flip-card-front .flip-name {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 5px;
}

.flip-card-front .flip-role {
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 15px;
}

.flip-card-front .flip-quote-short {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.95rem;
}

.flip-card-front .flip-stars {
  color: #fbbf24;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.flip-card-back {
  background: linear-gradient(145deg, #0f172a, #1e293b);
  transform: rotateY(180deg);
  border-color: var(--accent-glow);
  box-shadow: 0 0 30px var(--accent-dim);
}

.flip-card-back .flip-quote-full {
  color: var(--text-primary);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 15px;
}

.flip-card-back .flip-detail {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 15px;
}

.flip-card-back .flip-date {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 600;
}

/* ============================================================
   FAQ - Vertical Stepper / Steps
   ============================================================ */
.faq {
  background: linear-gradient(180deg, #1e293b, #0f172a);
  position: relative;
}

.stepper {
  max-width: 750px;
  margin: 0 auto;
  position: relative;
  padding-left: 60px;
}

/* Vertical connecting line */
.stepper::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background: linear-gradient(180deg, var(--accent), rgba(34, 211, 238, 0.1));
}

.step {
  position: relative;
  margin-bottom: 40px;
  padding: 25px 30px;
  background: rgba(30, 41, 59, 0.5);
  border-radius: 16px;
  border: 1px solid rgba(34, 211, 238, 0.1);
  transition: all var(--transition-speed);
  cursor: default;
}

.step:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 0 25px var(--accent-dim);
}

.step:last-child { margin-bottom: 0; }

.step-circle {
  position: absolute;
  left: -44px;
  top: 25px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #22d3ee, #3b82f6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: #0f172a;
  box-shadow: 0 0 20px var(--accent-glow);
  z-index: 2;
}

.step.completed .step-circle {
  background: linear-gradient(135deg, #10b981, #059669);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

.step.active .step-circle {
  animation: pulseCircle 2s infinite;
}

@keyframes pulseCircle {
  0%, 100% { box-shadow: 0 0 20px var(--accent-glow); }
  50% { box-shadow: 0 0 40px var(--accent-glow), 0 0 60px rgba(34, 211, 238, 0.4); }
}

.step-question {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.step-question i {
  color: var(--accent);
  transition: transform var(--transition-speed);
}

.step.open .step-question i {
  transform: rotate(180deg);
}

.step-answer {
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease, margin 0.3s ease;
}

.step.open .step-answer {
  max-height: 300px;
  margin-top: 12px;
}

/* ============================================================
   CTA - Neon Glow Border Button
   ============================================================ */
.cta-section {
  background: var(--bg-darker);
  text-align: center;
  padding: 100px 20px;
  position: relative;
  overflow: hidden;
}

.cta-glow-bg {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.15) 0%, transparent 70%);
  pointer-events: none;
  animation: ctaPulse 3s ease-in-out infinite;
}

@keyframes ctaPulse {
  0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.7; }
  50% { transform: translate(-50%, -50%) scale(1.3); opacity: 1; }
}

.cta-section h2 {
  font-size: 2.5rem;
  font-weight: 900;
  margin-bottom: 20px;
  position: relative;
  z-index: 1;
}

.cta-section p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  position: relative;
  z-index: 1;
}

.btn-neon {
  position: relative;
  z-index: 1;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 50px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  background: transparent;
  border: 2px solid var(--accent);
  border-radius: 50px;
  cursor: pointer;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 3px;
  transition: all 0.4s ease;
  box-shadow:
    0 0 10px var(--accent-glow),
    0 0 30px rgba(34, 211, 238, 0.2),
    inset 0 0 10px var(--accent-dim);
}

.btn-neon::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 54px;
  background: linear-gradient(135deg, #22d3ee, #3b82f6, #8b5cf6);
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s ease;
  filter: blur(15px);
}

.btn-neon:hover {
  color: #0f172a;
  background: var(--accent);
  box-shadow:
    0 0 20px var(--accent-glow),
    0 0 60px rgba(34, 211, 238, 0.4),
    0 0 100px rgba(34, 211, 238, 0.2);
  transform: translateY(-3px);
}

.btn-neon:hover::before { opacity: 0.8; }

/* ============================================================
   FOOTER - 4 Column Dark
   ============================================================ */
.footer {
  background: #0b1120;
  border-top: 1px solid rgba(34, 211, 238, 0.15);
  padding: 60px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.footer-col h4 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 25px;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 40px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), transparent);
  border-radius: 3px;
}

.footer-col p,
.footer-col li {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 2;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li a {
  color: var(--text-muted);
  transition: all var(--transition-speed);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 5px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-contact-item i {
  color: var(--accent);
  margin-top: 4px;
  width: 16px;
}

.footer-bottom {
  max-width: 1200px;
  margin: 40px auto 0;
  padding: 20px 20px 0;
  border-top: 1px solid rgba(34, 211, 238, 0.08);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ============================================================
   DOWNLOAD PAGE
   ============================================================ */
.download-hero {
  padding: 140px 20px 80px;
  text-align: center;
  background: radial-gradient(ellipse at center, #1e293b, #0f172a);
}

.download-tabs {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-bottom: 50px;
  flex-wrap: wrap;
}

.download-tab {
  padding: 12px 30px;
  border-radius: 30px;
  border: 2px solid rgba(34, 211, 238, 0.3);
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  transition: all var(--transition-speed);
}

.download-tab.active,
.download-tab:hover {
  background: linear-gradient(135deg, #22d3ee, #06b6d4);
  color: #0f172a;
  border-color: transparent;
  box-shadow: 0 0 20px var(--accent-glow);
}

.download-panel {
  display: none;
  max-width: 800px;
  margin: 0 auto;
  background: rgba(30, 41, 59, 0.6);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(34, 211, 238, 0.1);
}

.download-panel.active { display: block; }

.download-panel h3 {
  font-size: 1.8rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 10px;
}

.download-version {
  text-align: center;
  color: var(--accent);
  margin-bottom: 25px;
  font-size: 1rem;
}

.download-features {
  list-style: none;
  margin-bottom: 30px;
}

.download-features li {
  padding: 10px 0;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.download-features li i {
  color: var(--accent);
}

.download-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 15px;
}

.download-qr img {
  width: 160px;
  height: 160px;
  border-radius: 16px;
  border: 2px solid var(--accent-glow);
  box-shadow: 0 0 30px var(--accent-dim);
}

.version-history {
  max-width: 800px;
  margin: 60px auto 0;
  padding: 0 20px;
}

.version-item {
  display: flex;
  gap: 20px;
  padding: 20px;
  border-left: 3px solid var(--accent);
  margin-bottom: 20px;
  background: rgba(30, 41, 59, 0.4);
  border-radius: 0 12px 12px 0;
  transition: all var(--transition-speed);
}

.version-item:hover {
  background: rgba(30, 41, 59, 0.8);
  box-shadow: 0 0 20px var(--accent-dim);
}

.version-tag {
  background: var(--accent);
  color: #0f172a;
  padding: 4px 14px;
  border-radius: 20px;
  font-weight: 700;
  font-size: 0.85rem;
  white-space: nowrap;
  height: fit-content;
}

.version-info h4 { font-size: 1rem; margin-bottom: 5px; }
.version-info p { color: var(--text-muted); font-size: 0.9rem; }
.version-info .version-date { color: var(--accent); font-size: 0.8rem; margin-top: 5px; }

/* ============================================================
   CLUB PAGE
   ============================================================ */
.club-hero {
  padding: 140px 20px 80px;
  text-align: center;
  background: radial-gradient(ellipse at center, #1e293b, #0f172a);
}

.tier-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  max-width: 1100px;
  margin: 0 auto;
}

.tier-card {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  border: 1px solid rgba(34, 211, 238, 0.1);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.tier-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.tier-card:hover { transform: translateY(-10px); border-color: var(--accent-glow); box-shadow: 0 20px 50px var(--accent-dim); }
.tier-card:hover::before { opacity: 1; }

.tier-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.15);
  transform: scale(1.05);
}

.tier-card.featured:hover { transform: scale(1.05) translateY(-10px); }

.tier-badge {
  display: inline-block;
  padding: 5px 16px;
  border-radius: 15px;
  font-size: 0.8rem;
  font-weight: 700;
  background: var(--accent-dim);
  color: var(--accent);
  margin-bottom: 20px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.tier-card.featured .tier-badge {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
}

.tier-icon {
  font-size: 3rem;
  color: var(--accent);
  margin-bottom: 15px;
  filter: drop-shadow(0 0 10px var(--accent-glow));
}

.tier-name {
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.tier-price {
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--accent);
  margin-bottom: 5px;
}

.tier-price span { font-size: 1rem; color: var(--text-muted); }

.tier-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 25px;
}

.tier-benefits {
  list-style: none;
  text-align: left;
  margin-bottom: 30px;
}

.tier-benefits li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.tier-benefits li i {
  color: #10b981;
}

.club-intro {
  max-width: 900px;
  margin: 0 auto 60px;
  text-align: center;
}

.club-intro p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-hero {
  padding: 140px 20px 80px;
  text-align: center;
  background: radial-gradient(ellipse at center, #1e293b, #0f172a);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  max-width: 1100px;
  margin: 0 auto;
}

.contact-form-card {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid rgba(34, 211, 238, 0.1);
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: rgba(15, 23, 42, 0.8);
  border: 1px solid rgba(34, 211, 238, 0.15);
  border-radius: 12px;
  color: var(--text-primary);
  font-size: 1rem;
  font-family: var(--font-cn);
  transition: all var(--transition-speed);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 15px var(--accent-dim);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.btn-submit {
  width: 100%;
  padding: 16px;
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  cursor: pointer;
  background: linear-gradient(135deg, #22d3ee, #06b6d4);
  color: #0f172a;
  box-shadow: 0 0 25px rgba(34, 211, 238, 0.3);
  transition: all var(--transition-speed);
}

.btn-submit:hover {
  box-shadow: 0 0 45px rgba(34, 211, 238, 0.5);
  transform: translateY(-2px);
}

.contact-info-side {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.contact-info-card {
  background: rgba(30, 41, 59, 0.6);
  border-radius: 16px;
  padding: 25px;
  border: 1px solid rgba(34, 211, 238, 0.1);
  display: flex;
  align-items: flex-start;
  gap: 18px;
  transition: all var(--transition-speed);
}

.contact-info-card:hover {
  border-color: var(--accent-glow);
  box-shadow: 0 0 20px var(--accent-dim);
}

.contact-info-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
}

.contact-info-text h4 {
  font-size: 1rem;
  margin-bottom: 5px;
}

.contact-info-text p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.6;
}

.contact-social {
  display: flex;
  gap: 15px;
  margin-top: 10px;
}

.contact-social a {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(34, 211, 238, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--accent);
  border: 1px solid rgba(34, 211, 238, 0.2);
  transition: all var(--transition-speed);
}

.contact-social a:hover {
  background: var(--accent);
  color: #0f172a;
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ============================================================
   MOBILE RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(30px);
    flex-direction: column;
    padding: 100px 30px 30px;
    gap: 10px;
    transition: right 0.4s ease;
    border-left: 1px solid rgba(34, 211, 238, 0.15);
  }

  .nav-links.open { right: 0; }

  .nav-links a {
    display: block;
    padding: 12px 20px;
  }

  .hero h1 { font-size: 2.2rem; }
  .section-title { font-size: 1.8rem; }
  .cta-section h2 { font-size: 1.8rem; }

  .hex-item { width: 220px; height: 260px; }
  .hex-grid { gap: 0; }

  .flip-cards-grid { grid-template-columns: 1fr; max-width: 400px; }

  .stepper { padding-left: 45px; }
  .step-circle { left: -35px; width: 32px; height: 32px; font-size: 0.85rem; }
  .stepper::before { left: 21px; }

  .footer-grid { grid-template-columns: 1fr; gap: 30px; }

  .hero-buttons { flex-direction: column; align-items: center; }
  .btn { width: 100%; max-width: 300px; justify-content: center; }

  .tier-card.featured { transform: none; }
  .tier-card.featured:hover { transform: translateY(-10px); }

  .contact-grid { gap: 30px; }

  .version-item { flex-direction: column; gap: 10px; }
}

@media (max-width: 480px) {
  .hero { padding: 100px 15px 60px; }
  .hero h1 { font-size: 1.8rem; }
  .hero-subtitle { font-size: 1rem; }
  .section-padding { padding: 50px 0; }
  .hex-item { width: 100%; max-width: 280px; height: 250px; }
  .download-panel { padding: 25px 20px; }
  .tier-grid { grid-template-columns: 1fr; }
}

/* === Scroll Animation Trigger === */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* === Loading Shimmer === */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

/* === Page Header Common === */
.page-header {
  padding: 140px 20px 60px;
  text-align: center;
  background: radial-gradient(ellipse at center, #1e293b, #0f172a);
  position: relative;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
}

.page-header h1 {
  font-size: 2.8rem;
  font-weight: 900;
}