/* ============================================
   HHpoker - Premium SaaS Landing Page Styles
   ============================================ */

/* Custom Font Import */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --primary-light: #6366f1;
  --accent: #f59e0b;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --bg-light: #f8fafc;
  --bg-white: #ffffff;
  --glass-bg: rgba(255, 255, 255, 0.85);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  color: var(--text-primary);
  background: var(--bg-white);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============ NAVBAR ============ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(255, 255, 255, 0.82);
  border-bottom: 1px solid rgba(229, 231, 235, 0.6);
  transition: all 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.06);
  background: rgba(255, 255, 255, 0.95);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary);
  letter-spacing: -0.5px;
}

.navbar-logo .logo-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 8px 18px;
  border-radius: 12px;
  transition: all 0.25s ease;
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--primary);
  background: rgba(79, 70, 229, 0.06);
}

.navbar-links a.nav-cta {
  background: var(--primary);
  color: white;
  padding: 10px 24px;
  border-radius: 14px;
  font-weight: 600;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.3);
}

.navbar-links a.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

/* Mobile menu toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 4px;
}

@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }

  .navbar-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px;
    gap: 4px;
    border-bottom: 1px solid #e5e7eb;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  }

  .navbar-links.open {
    display: flex;
  }

  .navbar-links a {
    padding: 12px 16px;
    font-size: 1rem;
    border-radius: 10px;
  }
}

/* ============ HERO ============ */
.hero-section {
  padding: 140px 24px 100px;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(79, 70, 229, 0.06);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.875rem;
  padding: 8px 18px;
  border-radius: 50px;
  margin-bottom: 24px;
  border: 1px solid rgba(79, 70, 229, 0.12);
}

.hero-badge .badge-dot {
  width: 8px;
  height: 8px;
  background: #22c55e;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
  50% { box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--primary), #7c3aed, #a855f7);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 500px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 16px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: white;
  box-shadow: 0 8px 30px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(79, 70, 229, 0.45);
}

.btn-secondary {
  background: white;
  color: var(--primary);
  border: 2px solid rgba(79, 70, 229, 0.2);
}

.btn-secondary:hover {
  background: rgba(79, 70, 229, 0.04);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.hero-image-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image {
  width: 100%;
  max-width: 540px;
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
  transition: transform 0.4s ease;
}

.hero-image:hover {
  transform: scale(1.02);
}

.hero-glow {
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79, 70, 229, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-section {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .hero-section {
    grid-template-columns: 1fr;
    text-align: center;
    padding: 120px 20px 60px;
  }

  .hero-title {
    font-size: 2rem;
  }

  .hero-subtitle {
    max-width: 100%;
    font-size: 1rem;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-image {
    max-width: 360px;
  }
}

/* ============ FEATURES ============ */
.features-section {
  padding: 100px 24px;
  background: var(--bg-light);
}

.section-label {
  display: inline-block;
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 60px;
}

.features-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: white;
  border-radius: 20px;
  padding: 36px 32px;
  border: 1px solid rgba(229, 231, 235, 0.8);
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), #7c3aed);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.feature-card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.1);
  border-color: transparent;
}

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

.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(124, 58, 237, 0.08));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: white;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .section-title {
    font-size: 1.75rem;
  }
}

/* ============ STATS ============ */
.stats-section {
  padding: 80px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 32px 20px;
  background: white;
  border-radius: 20px;
  border: 1px solid rgba(229, 231, 235, 0.6);
  transition: all 0.3s ease;
}

.stat-item:hover {
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.06);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 6px;
}

.stat-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

@media (max-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-number {
    font-size: 2rem;
  }
}

/* ============ TESTIMONIALS ============ */
.testimonials-section {
  padding: 100px 24px;
  background: var(--bg-light);
}

.testimonials-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: white;
  border-radius: 20px;
  padding: 32px;
  border: 1px solid rgba(229, 231, 235, 0.6);
  transition: all 0.3s ease;
}

.testimonial-card:hover {
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
  transform: translateY(-4px);
}

.testimonial-stars {
  color: #f59e0b;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.testimonial-quote {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-size: 1.1rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

@media (max-width: 1024px) {
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

/* ============ FAQ ============ */
.faq-section {
  padding: 100px 24px;
  max-width: 800px;
  margin: 0 auto;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.faq-item {
  border: 1px solid rgba(229, 231, 235, 0.8);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s ease;
  background: white;
}

.faq-item:hover {
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
}

.faq-item summary {
  padding: 22px 28px;
  font-weight: 600;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 1rem;
  color: var(--text-secondary);
  transition: transform 0.3s ease;
}

.faq-item[open] summary {
  color: var(--primary);
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-answer {
  padding: 0 28px 22px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ============ CTA ============ */
.cta-section {
  padding: 100px 24px;
  max-width: 1280px;
  margin: 0 auto;
}

.cta-card {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #6366f1 100%);
  border-radius: 32px;
  padding: 80px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(79, 70, 229, 0.35);
}

.cta-card::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 50%;
  top: -200px;
  right: -150px;
}

.cta-card::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 50%;
  bottom: -100px;
  left: -80px;
}

.cta-card h2 {
  font-size: 2.5rem;
  font-weight: 900;
  color: white;
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.cta-card p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: 36px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
  position: relative;
  z-index: 1;
}

.btn-white {
  background: white;
  color: var(--primary);
  font-weight: 700;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  position: relative;
  z-index: 1;
}

.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.2);
}

@media (max-width: 640px) {
  .cta-card {
    padding: 50px 24px;
    border-radius: 24px;
  }

  .cta-card h2 {
    font-size: 1.75rem;
  }
}

/* ============ FOOTER ============ */
.footer {
  background: var(--text-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 24px 30px;
}

.footer-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-brand h3 {
  color: white;
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-column h4 {
  color: white;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 20px;
}

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

.footer-column ul li {
  margin-bottom: 10px;
}

.footer-column ul li a {
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

.footer-column ul li a:hover {
  color: white;
}

.footer-bottom {
  max-width: 1280px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

/* ============ PAGE HEADER (inner pages) ============ */
.page-header {
  padding: 140px 24px 60px;
  text-align: center;
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.03) 0%, transparent 100%);
}

.page-header h1 {
  font-size: 2.75rem;
  font-weight: 900;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}

.page-header p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ============ DOWNLOAD CARDS ============ */
.download-grid {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.download-card {
  background: white;
  border-radius: 20px;
  padding: 40px 28px;
  text-align: center;
  border: 1px solid rgba(229, 231, 235, 0.8);
  transition: all 0.35s ease;
}

.download-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.1);
  border-color: transparent;
}

.download-card.featured {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.04);
  position: relative;
}

.download-card.featured::before {
  content: '推荐';
  position: absolute;
  top: 16px;
  right: 16px;
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
}

.download-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(124, 58, 237, 0.08));
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--primary);
}

.download-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.download-card .version {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

/* ============ CLUB CARDS ============ */
.club-grid {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.club-card {
  background: white;
  border-radius: 20px;
  padding: 36px 32px;
  border: 1px solid rgba(229, 231, 235, 0.8);
  transition: all 0.35s ease;
  display: flex;
  gap: 24px;
  align-items: flex-start;
}

.club-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.1);
  border-color: transparent;
}

.club-icon {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(79, 70, 229, 0.08), rgba(124, 58, 237, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--primary);
}

.club-card:hover .club-icon {
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: white;
}

.club-info h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.club-info .club-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 10px;
  background: rgba(245, 158, 11, 0.1);
  color: #d97706;
  border-radius: 20px;
  margin-bottom: 10px;
}

.club-info p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .download-grid,
  .club-grid {
    grid-template-columns: 1fr;
  }

  .page-header h1 {
    font-size: 2rem;
  }
}

/* ============ ANIMATIONS ============ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

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

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 48px;
  height: 48px;
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: 0 8px 24px rgba(79, 70, 229, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(79, 70, 229, 0.4);
}