/* ============================================================
   GoldenRatio Data - Landing Page Styles
   Color Scheme: Amber/Gold + Dark Navy
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --gold-primary: #f59e0b;
  --gold-light: #fbbf24;
  --gold-dark: #d97706;
  --gold-glow: rgba(245, 158, 11, 0.3);
  --navy-dark: #0a0e1a;
  --navy: #0f172a;
  --navy-light: #1e293b;
  --card-bg: #111827;
  --text-light: #e2e8f0;
  --text-muted: #94a3b8;
  --border-gold: rgba(245, 158, 11, 0.4);
}

/* --- Base & Typography --- */
html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  background-color: var(--navy-dark);
  color: var(--text-light);
  overflow-x: hidden;
}

/* --- Gradient Text --- */
.gold-text {
  background: linear-gradient(135deg, #f59e0b 0%, #fbbf24 40%, #fef3c7 70%, #f59e0b 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gold-text-solid {
  color: var(--gold-primary);
}

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
  padding: 1rem 0;
}

.navbar.scrolled {
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(245, 158, 11, 0.15);
  padding: 0.6rem 0;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  transition: color 0.3s;
}

.navbar-brand:hover {
  color: var(--gold-primary);
}

.navbar-brand i {
  font-size: 1.5rem;
  color: var(--gold-primary);
}

.nav-link-item {
  color: #cbd5e1;
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.9rem;
  border-radius: 0.5rem;
  transition: all 0.3s ease;
  position: relative;
}

.nav-link-item:hover {
  color: var(--gold-primary);
}

.nav-link-item::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--gold-primary);
  border-radius: 2px;
  transition: transform 0.3s ease;
}

.nav-link-item:hover::after {
  transform: translateX(-50%) scaleX(1);
}

.nav-cta-btn {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0a0e1a !important;
  font-weight: 700;
  padding: 0.55rem 1.4rem !important;
  border-radius: 0.6rem !important;
  transition: all 0.3s ease;
  box-shadow: 0 2px 15px rgba(245, 158, 11, 0.3);
}

.nav-cta-btn:hover {
  box-shadow: 0 4px 25px rgba(245, 158, 11, 0.5);
  transform: translateY(-1px);
  color: #0a0e1a !important;
}

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

.hamburger-btn span {
  display: block;
  width: 26px;
  height: 3px;
  background: #fff;
  border-radius: 3px;
  transition: all 0.3s ease;
}

.hamburger-btn.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}

.hamburger-btn.active span:nth-child(2) {
  opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  background: rgba(10, 14, 26, 0.98);
  backdrop-filter: blur(20px);
  padding: 5rem 2rem 2rem;
  transition: right 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 999;
  border-left: 1px solid rgba(245, 158, 11, 0.2);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.mobile-menu.active {
  right: 0;
}

.mobile-menu a {
  display: block;
  color: #e2e8f0;
  text-decoration: none;
  font-size: 1.1rem;
  padding: 0.8rem 1rem;
  border-radius: 0.5rem;
  transition: all 0.3s;
}

.mobile-menu a:hover {
  background: rgba(245, 158, 11, 0.1);
  color: var(--gold-primary);
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s;
}

.mobile-overlay.active {
  opacity: 1;
  pointer-events: all;
}

/* --- Hero Section --- */
.hero-section {
  position: relative;
  min-height: 100vh;
  background: linear-gradient(160deg, #0a0e1a 0%, #0f172a 30%, #1a1040 60%, #0f172a 100%);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 5rem;
}

.hero-bg-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
  pointer-events: none;
}

.hero-glow-1 {
  background: radial-gradient(circle, #f59e0b, transparent);
  top: -150px;
  right: -100px;
}

.hero-glow-2 {
  background: radial-gradient(circle, #d97706, transparent);
  bottom: -200px;
  left: -150px;
  opacity: 0.1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  padding: 0.4rem 1rem;
  border-radius: 2rem;
  font-size: 0.85rem;
  color: var(--gold-primary);
  margin-bottom: 1.5rem;
}

.hero-badge i {
  font-size: 0.75rem;
}

.hero-phone-mockup {
  position: relative;
  animation: floatPhone 6s ease-in-out infinite;
}

@keyframes floatPhone {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.phone-frame {
  background: #1a1a2e;
  border: 3px solid var(--gold-primary);
  border-radius: 2.5rem;
  padding: 0.6rem;
  box-shadow: 0 30px 60px rgba(245, 158, 11, 0.15), 0 0 80px rgba(245, 158, 11, 0.08);
  position: relative;
}

.phone-notch {
  position: absolute;
  top: 0.6rem;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 22px;
  background: #0f172a;
  border-radius: 0 0 14px 14px;
  z-index: 2;
}

.phone-screen-img {
  width: 100%;
  height: auto;
  border-radius: 2rem;
  display: block;
}

/* --- Feature Cards --- */
.feature-card {
  background: var(--card-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 1rem;
  padding: 2rem 1.5rem;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: 1rem;
  opacity: 0;
  transition: opacity 0.4s ease;
  box-shadow: inset 0 0 40px rgba(245, 158, 11, 0.15), 0 0 30px rgba(245, 158, 11, 0.1);
  pointer-events: none;
}

.feature-card:hover {
  border-color: var(--gold-primary);
  transform: translateY(-6px);
}

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

.feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 0.9rem;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.2rem;
  font-size: 1.5rem;
  color: var(--gold-primary);
  transition: all 0.3s;
}

.feature-card:hover .feature-icon-wrap {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0a0e1a;
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.4);
}

/* --- Stats Section --- */
.stats-section {
  background: linear-gradient(180deg, #0f172a 0%, #0a0e1a 100%);
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.4), transparent);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(180deg, #fbbf24 0%, #f59e0b 50%, #d97706 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}

/* Ring Progress */
.ring-progress-wrap {
  position: relative;
  width: 100px;
  height: 100px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.ring-progress-wrap svg {
  transform: rotate(-90deg);
}

.ring-bg {
  fill: none;
  stroke: rgba(245, 158, 11, 0.12);
  stroke-width: 6;
}

.ring-fill {
  fill: none;
  stroke: url(#ringGradient);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 1.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.ring-text {
  position: absolute;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--gold-primary);
}

/* --- Testimonials --- */
.testimonial-section {
  background: linear-gradient(180deg, #0a0e1a 0%, #0f172a 50%, #0a0e1a 100%);
}

.testimonial-card {
  background: var(--card-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 1.5rem;
  padding: 2.5rem;
  max-width: 750px;
  margin: 0 auto;
  position: relative;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: -20px;
  left: 2rem;
  font-size: 8rem;
  color: rgba(245, 158, 11, 0.12);
  font-family: serif;
  line-height: 1;
  pointer-events: none;
}

.testimonial-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  border: 3px solid var(--gold-primary);
  object-fit: cover;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.testimonial-rating i {
  color: #f59e0b;
  font-size: 0.9rem;
}

.carousel-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 2px solid rgba(245, 158, 11, 0.4);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s;
}

.carousel-dot.active {
  background: var(--gold-primary);
  border-color: var(--gold-primary);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.5);
}

.carousel-nav-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, 0.4);
  background: rgba(245, 158, 11, 0.08);
  color: var(--gold-primary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s;
  font-size: 1rem;
}

.carousel-nav-btn:hover {
  background: var(--gold-primary);
  color: #0a0e1a;
  border-color: var(--gold-primary);
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.4);
}

/* --- FAQ Accordion --- */
.faq-section {
  background: linear-gradient(180deg, #0f172a 0%, #0a0e1a 100%);
}

.faq-item {
  border: 1px solid rgba(245, 158, 11, 0.15);
  border-radius: 0.8rem;
  margin-bottom: 0.75rem;
  overflow: hidden;
  background: rgba(17, 24, 39, 0.6);
  transition: all 0.3s;
}

.faq-item:hover {
  border-color: rgba(245, 158, 11, 0.35);
}

.faq-question {
  width: 100%;
  padding: 1.2rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  text-align: left;
  font-size: 1rem;
  font-weight: 600;
  color: #e2e8f0;
  background: none;
  border: none;
  cursor: pointer;
  transition: color 0.3s;
  gap: 1rem;
}

.faq-question:hover {
  color: var(--gold-primary);
}

.faq-question i {
  font-size: 0.85rem;
  color: var(--gold-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding: 0 1.5rem 1.2rem;
}

.faq-answer p {
  color: #94a3b8;
  line-height: 1.8;
  font-size: 0.95rem;
}

/* --- CTA Section --- */
.cta-section {
  background: linear-gradient(135deg, #0f172a 0%, #1a1040 50%, #0f172a 100%);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta-card {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.08), rgba(217, 119, 6, 0.05));
  border: 1px solid rgba(245, 158, 11, 0.25);
  border-radius: 1.5rem;
  padding: 3.5rem 2rem;
  position: relative;
  overflow: hidden;
}

.cta-card::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.08), transparent);
  pointer-events: none;
}

/* --- Footer --- */
.footer-section {
  background: #0a0e1a;
  border-top: 1px solid rgba(245, 158, 11, 0.15);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.3rem;
  font-weight: 700;
  color: #fff;
}

.footer-brand i {
  color: var(--gold-primary);
  font-size: 1.4rem;
}

.footer-link {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.3s;
  display: inline-block;
}

.footer-link:hover {
  color: var(--gold-primary);
}

.footer-social {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(245, 158, 11, 0.2);
  background: rgba(245, 158, 11, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #94a3b8;
  transition: all 0.3s;
  text-decoration: none;
}

.footer-social:hover {
  background: var(--gold-primary);
  color: #0a0e1a;
  border-color: var(--gold-primary);
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

/* --- Page Header (for inner pages) --- */
.page-header {
  background: linear-gradient(160deg, #0a0e1a 0%, #0f172a 40%, #1a1040 70%, #0f172a 100%);
  padding: 8rem 0 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245, 158, 11, 0.5), transparent);
}

/* --- About Page Specific --- */
.about-img-wrap {
  position: relative;
}

.about-img-wrap::before {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 1rem;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  opacity: 0.3;
  z-index: -1;
}

.about-stat-card {
  background: var(--card-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 0.8rem;
  padding: 1.5rem;
  text-align: center;
  transition: all 0.3s;
}

.about-stat-card:hover {
  border-color: var(--gold-primary);
  box-shadow: inset 0 0 25px rgba(245, 158, 11, 0.1);
}

/* --- Contact Page Specific --- */
.contact-form-input {
  width: 100%;
  background: var(--card-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 0.6rem;
  padding: 0.9rem 1rem;
  color: #e2e8f0;
  font-size: 0.95rem;
  transition: all 0.3s;
  outline: none;
}

.contact-form-input:focus {
  border-color: var(--gold-primary);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.1);
}

.contact-form-input::placeholder {
  color: #64748b;
}

.contact-info-card {
  background: var(--card-bg);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: 0.8rem;
  padding: 1.5rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all 0.3s;
}

.contact-info-card:hover {
  border-color: var(--gold-primary);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  border-radius: 0.7rem;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.2), rgba(217, 119, 6, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold-primary);
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* --- Buttons --- */
.btn-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #0a0e1a;
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 0.6rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.3);
}

.btn-gold:hover {
  box-shadow: 0 6px 30px rgba(245, 158, 11, 0.5);
  transform: translateY(-2px);
}

.btn-outline-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: transparent;
  color: var(--gold-primary);
  font-weight: 600;
  padding: 0.7rem 1.9rem;
  border-radius: 0.6rem;
  text-decoration: none;
  transition: all 0.3s ease;
  border: 2px solid rgba(245, 158, 11, 0.4);
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-outline-gold:hover {
  background: rgba(245, 158, 11, 0.1);
  border-color: var(--gold-primary);
  box-shadow: 0 4px 20px rgba(245, 158, 11, 0.2);
}

/* --- Animations --- */
.fade-in-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-phone-mockup {
    max-width: 280px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-links-desktop {
    display: none !important;
  }

  .hamburger-btn {
    display: flex;
  }

  .hero-section {
    text-align: center;
    min-height: auto;
    padding: 7rem 0 4rem;
  }

  .hero-phone-mockup {
    max-width: 220px;
    margin-top: 2rem;
  }

  .stat-number {
    font-size: 2.2rem;
  }

  .feature-card {
    padding: 1.5rem 1.2rem;
  }

  .testimonial-card {
    padding: 1.8rem 1.2rem;
  }

  .testimonial-card::before {
    font-size: 5rem;
    top: -10px;
  }

  .cta-card {
    padding: 2.5rem 1.2rem;
  }

  .page-header {
    padding: 6rem 0 3rem;
  }
}

@media (max-width: 480px) {
  .hero-title {
    font-size: 2rem !important;
  }

  .hero-subtitle {
    font-size: 1rem !important;
  }

  .stat-number {
    font-size: 1.8rem;
  }

  .ring-progress-wrap {
    width: 80px;
    height: 80px;
  }
}
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