/* ==========================================================================
   BYAJ NOTE — Modern Financial App Landing Page Stylesheet
   Color Palette:
   - Primary: #6C3CEB (Vibrant Royal Indigo/Purple)
   - Secondary: #8B5CF6 (Vibrant Violet Accent)
   - Background: #F8F7FC (Soft Tinted Alabaster)
   - Text: #1F1F29 (Deep Charcoal)
   - White: #FFFFFF
   ========================================================================== */

/* 1. CSS Custom Properties / Design Tokens */
:root {
  --color-primary: #6C3CEB;
  --color-primary-dark: #5527D6;
  --color-primary-darker: #3E16A8;
  --color-primary-light: #ECE5FD;
  --color-primary-subtle: #F5F1FE;
  --color-primary-glow: rgba(108, 60, 235, 0.22);

  --color-secondary: #8B5CF6;
  --color-secondary-light: #F5F0FF;

  --color-bg: #F8F7FC;
  --color-bg-alt: #FFFFFF;
  --color-surface: #FFFFFF;

  --color-text-main: #1F1F29;
  --color-text-muted: #585A6B;
  --color-text-subtle: #8E91A4;
  --color-text-inverted: #FFFFFF;

  --color-border: #E8E5F2;
  --color-border-subtle: #F1EFF8;
  --color-border-focus: #6C3CEB;

  --color-emerald: #10B981;
  --color-emerald-light: #ECFDF5;
  --color-rose: #EF4444;
  --color-rose-light: #FEF2F2;
  --color-amber: #F59E0B;
  --color-amber-light: #FFFBEB;

  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 30px;
  --radius-full: 9999px;

  --shadow-xs: 0 1px 3px rgba(31, 31, 41, 0.05);
  --shadow-sm: 0 4px 12px rgba(31, 31, 41, 0.05);
  --shadow-md: 0 10px 25px rgba(108, 60, 235, 0.07);
  --shadow-lg: 0 18px 40px rgba(108, 60, 235, 0.12);
  --shadow-xl: 0 25px 60px rgba(108, 60, 235, 0.18);
  --shadow-glow: 0 0 35px rgba(108, 60, 235, 0.28);

  --transition-fast: 160ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 260ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 400ms cubic-bezier(0.16, 1, 0.3, 1);

  --container-max: 1200px;
  --header-height: 76px;
}

/* 2. Global Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-main);
  background-color: var(--color-bg);
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 24px);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--color-bg);
  color: var(--color-text-main);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: none;
  cursor: pointer;
}

ul, ol {
  list-style: none;
}

/* 3. Utility Classes */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: 96px;
  padding-bottom: 96px;
  position: relative;
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1.25;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* 4. Button Components */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  white-space: nowrap;
  text-align: center;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  color: var(--color-text-inverted);
  box-shadow: 0 6px 20px rgba(108, 60, 235, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(108, 60, 235, 0.45);
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--secondary {
  background-color: #FFFFFF;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.btn--secondary:hover {
  background-color: var(--color-primary-light);
  border-color: var(--color-secondary);
  color: var(--color-primary-dark);
  transform: translateY(-2px);
}

.btn--google-play {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background-color: #111116;
  color: #FFFFFF;
  padding: 10px 22px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
  transition: all var(--transition-normal);
}

.btn--google-play:hover {
  transform: translateY(-2px);
  background-color: #1A1A22;
  box-shadow: 0 14px 34px rgba(108, 60, 235, 0.3);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--google-play .play-icon {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}

.btn--google-play .play-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.15;
}

.btn--google-play .play-text-small {
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #A0A3BD;
  font-weight: 600;
}

.btn--google-play .play-text-large {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: 0.02em;
}

/* 5. Sticky Header / Navbar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background-color: rgba(248, 247, 252, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
}

.site-header.is-scrolled {
  background-color: rgba(255, 255, 255, 0.94);
  box-shadow: 0 4px 20px rgba(108, 60, 235, 0.08);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-main);
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(108, 60, 235, 0.3);
}

.brand-name {
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-muted);
  position: relative;
  padding: 6px 0;
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  padding: 8px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.hamburger-btn span {
  display: block;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

/* Mobile Nav Drawer */
.mobile-nav-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 82%;
  max-width: 360px;
  height: 100vh;
  background-color: #FFFFFF;
  box-shadow: -10px 0 35px rgba(0, 0, 0, 0.15);
  z-index: 1050;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-nav-drawer.is-open {
  right: 0;
}

.mobile-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-close-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--color-text-muted);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 36px;
}

.mobile-nav-link {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  padding: 8px 0;
}

.mobile-nav-link.active,
.mobile-nav-link:hover {
  color: var(--color-primary);
}

.drawer-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(31, 31, 41, 0.45);
  backdrop-filter: blur(4px);
  z-index: 1040;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.drawer-backdrop.is-active {
  opacity: 1;
  visibility: visible;
}

/* 6. Hero Section */
.hero-section {
  padding-top: 48px;
  padding-bottom: 80px;
  overflow: hidden;
  background: radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 60%),
              radial-gradient(circle at 10% 70%, rgba(108, 60, 235, 0.08) 0%, transparent 50%),
              var(--color-bg);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  align-items: center;
  gap: 48px;
}

.hero-content {
  max-width: 580px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--color-emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-emerald);
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-text-main);
  margin-bottom: 20px;
}

.hero-title-highlight {
  color: var(--color-primary);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  padding-top: 28px;
  border-top: 1px solid var(--color-border);
}

.hero-highlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-text-main);
}

.hero-highlight-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background-color: var(--color-emerald-light);
  color: var(--color-emerald);
  font-size: 0.8rem;
  flex-shrink: 0;
}

/* Hero Mockup Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-mockup-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.hero-mockup-img {
  width: 100%;
  filter: drop-shadow(0 25px 50px rgba(108, 60, 235, 0.22));
  transition: transform var(--transition-slow);
}

.hero-mockup-wrapper:hover .hero-mockup-img {
  transform: translateY(-6px) scale(1.01);
}

/* 7. About Section */
.about-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 56px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

.about-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-secondary));
}

.about-lead {
  font-size: 1.45rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
}

.about-body {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.75;
  margin-bottom: 40px;
}

.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding-top: 36px;
  border-top: 1px solid var(--color-border);
}

.about-stat {
  text-align: left;
}

.about-stat-number {
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-primary);
  margin-bottom: 4px;
  line-height: 1.2;
}

.about-stat-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

/* 8. Features Section */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.feature-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 32px 26px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-secondary);
  box-shadow: var(--shadow-lg);
}

.feature-icon-box {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  font-size: 1.5rem;
  transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon-box {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  transform: scale(1.08);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: auto;
}

/* 9. Interactive Live Interest Calculator Widget */
.calc-demo-container {
  margin-top: 60px;
  background: linear-gradient(135deg, #251B45 0%, #15102A 100%);
  border-radius: var(--radius-xl);
  padding: 48px;
  color: #FFFFFF;
  box-shadow: 0 20px 50px rgba(21, 16, 42, 0.35);
  position: relative;
  overflow: hidden;
}

.calc-demo-container::after {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35) 0%, transparent 70%);
  pointer-events: none;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.calc-inputs-col h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.calc-inputs-col p {
  color: #B5B0CD;
  font-size: 0.95rem;
  margin-bottom: 28px;
}

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

.calc-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
  color: #DDD6FE;
  margin-bottom: 8px;
}

.calc-label-val {
  font-family: var(--font-mono);
  color: #FFFFFF;
  font-weight: 700;
}

.calc-input-row {
  position: relative;
}

.calc-input {
  width: 100%;
  background: rgba(255, 255, 255, 0.08);
  border: 1.5px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  padding: 12px 16px;
  color: #FFFFFF;
  font-size: 1.05rem;
  font-weight: 600;
  outline: none;
  transition: border-color var(--transition-fast);
}

.calc-input:focus {
  border-color: var(--color-secondary);
  background: rgba(255, 255, 255, 0.12);
}

.calc-range {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--color-secondary);
  cursor: pointer;
}

.calc-result-box {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.calc-result-tag {
  font-size: 0.8125rem;
  font-weight: 700;
  color: #A78BFA;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.calc-result-val {
  font-size: 2.75rem;
  font-weight: 900;
  color: #10B981;
  line-height: 1.2;
  margin-bottom: 12px;
}

.calc-result-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding-top: 20px;
  margin-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: left;
}

.calc-detail-item span {
  display: block;
  font-size: 0.75rem;
  color: #9CA3AF;
  text-transform: uppercase;
}

.calc-detail-item strong {
  font-size: 1.1rem;
  color: #FFFFFF;
  font-weight: 700;
}

/* 10. How It Works Section */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}

.step-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: all var(--transition-normal);
}

.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 24px;
  box-shadow: 0 4px 14px rgba(108, 60, 235, 0.35);
}

.step-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 12px;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 11. Screenshots Gallery Section */
.screenshots-container {
  overflow-x: auto;
  padding-bottom: 24px;
  margin: 0 -12px;
  padding-left: 12px;
  padding-right: 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-secondary) var(--color-border);
}

.screenshots-grid {
  display: grid;
  grid-template-columns: repeat(5, 260px);
  gap: 28px;
  justify-content: center;
}

.screenshot-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  outline: none;
}

.phone-frame {
  width: 100%;
  background: #1C1C26;
  border-radius: 36px;
  padding: 10px;
  box-shadow: 0 16px 36px rgba(31, 31, 41, 0.16);
  border: 2px solid #373748;
  position: relative;
  transition: all var(--transition-normal);
}

.screenshot-item:hover .phone-frame,
.screenshot-item:focus-visible .phone-frame {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 24px 50px rgba(108, 60, 235, 0.28);
  border-color: var(--color-secondary);
}

.phone-screen {
  width: 100%;
  border-radius: 28px;
  overflow: hidden;
  background-color: #000000;
  aspect-ratio: 9 / 18;
  position: relative;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.phone-notch {
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background-color: #0F0F14;
  border-radius: 50%;
  z-index: 5;
}

.screenshot-caption {
  margin-top: 18px;
  text-align: center;
}

.screenshot-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text-main);
  margin-bottom: 4px;
}

.screenshot-hint {
  font-size: 0.8125rem;
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* 12. Native <dialog> Lightbox */
.lightbox-dialog {
  padding: 0;
  border: none;
  background: transparent;
  max-width: 90vw;
  max-height: 90vh;
  margin: auto;
  border-radius: var(--radius-xl);
  outline: none;
}

.lightbox-dialog::backdrop {
  background: rgba(18, 16, 30, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.lightbox-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  position: relative;
  padding: 20px;
}

.lightbox-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox-frame {
  max-height: 75vh;
  width: auto;
  border-radius: 36px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.6);
  border: 4px solid #373748;
  background-color: #1C1C26;
  padding: 8px;
}

.lightbox-frame img {
  max-height: calc(75vh - 16px);
  width: auto;
  border-radius: 28px;
  display: block;
}

.lightbox-footer {
  margin-top: 16px;
  text-align: center;
  color: #FFFFFF;
}

.lightbox-caption {
  font-size: 1.2rem;
  font-weight: 700;
}

.lightbox-counter {
  font-size: 0.875rem;
  color: #A0A3BD;
  margin-top: 4px;
}

.lightbox-close-btn {
  position: absolute;
  top: 0;
  right: 0;
  width: 44px;
  height: 44px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  color: #FFFFFF;
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lightbox-close-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

.lightbox-nav-btn {
  width: 50px;
  height: 50px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 50%;
  color: #FFFFFF;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.lightbox-nav-btn:hover {
  background: var(--color-primary);
  border-color: var(--color-primary);
  transform: scale(1.1);
}

/* 13. Why Byaj Note Section */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.why-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: all var(--transition-normal);
}

.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-secondary);
}

.why-check-icon {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background-color: var(--color-emerald-light);
  color: var(--color-emerald);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  font-weight: 800;
  flex-shrink: 0;
}

.why-content h4 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 6px;
}

.why-content p {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* 14. CTA Google Play Download Section */
.cta-section {
  padding: 96px 0;
  background: linear-gradient(135deg, #1C1335 0%, #2A175B 50%, #150E28 100%);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 70% 30%, rgba(139, 92, 246, 0.25) 0%, transparent 60%);
  pointer-events: none;
}

.cta-card {
  text-align: center;
  max-width: 740px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.cta-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(255, 255, 255, 0.12);
  color: #E9D5FF;
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
}

.cta-title {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  margin-bottom: 20px;
}

.cta-desc {
  font-size: 1.25rem;
  color: #DDD6FE;
  line-height: 1.6;
  margin-bottom: 40px;
}

.cta-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 36px;
}

.cta-trust-items {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.cta-trust-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: #E2E8F0;
}

/* 15. FAQ Section */
.faq-grid {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-item:hover {
  border-color: var(--color-secondary);
}

.faq-question {
  width: 100%;
  padding: 22px 26px;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  background: none;
  border: none;
  cursor: pointer;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}

.faq-item.is-open .faq-icon {
  transform: rotate(45deg);
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-normal);
}

.faq-answer-content {
  padding: 0 26px 24px 26px;
  font-size: 1rem;
  color: var(--color-text-muted);
  line-height: 1.65;
}

/* 16. Contact Section */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.contact-card {
  background-color: #FFFFFF;
  border-radius: var(--radius-xl);
  padding: 44px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.contact-card h3 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.contact-card p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  margin-bottom: 28px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background-color: var(--color-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.contact-info-text strong {
  display: block;
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.contact-info-text a {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
}

.contact-info-text a:hover {
  text-decoration: underline;
}

/* 17. Footer */
.site-footer {
  background-color: #12111A;
  color: #A0A3BD;
  padding-top: 72px;
  padding-bottom: 36px;
  border-top: 1px solid #232230;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid #232230;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-logo-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
}

.footer-tagline {
  font-size: 0.95rem;
  color: #8E91A4;
}

.footer-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
}

.footer-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: #CBD5E1;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 32px;
  font-size: 0.875rem;
  color: #64748B;
}

.footer-disclaimer {
  max-width: 600px;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: #64748B;
  margin-top: 16px;
}

/* 18. Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  box-shadow: 0 8px 24px rgba(108, 60, 235, 0.4);
  z-index: 990;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-normal);
}

.back-to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 30px rgba(108, 60, 235, 0.5);
}

/* 19. Privacy Policy Page Styles */
.policy-page {
  padding-top: 48px;
  padding-bottom: 96px;
  background-color: var(--color-bg);
}

.policy-header {
  background: linear-gradient(135deg, #251B45 0%, #15102A 100%);
  color: #FFFFFF;
  padding: 60px 0;
  border-radius: var(--radius-xl);
  margin-bottom: 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.policy-header h1 {
  font-size: 2.75rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.policy-meta {
  font-size: 1rem;
  color: #DDD6FE;
}

.policy-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 48px;
  align-items: flex-start;
}

.policy-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 24px);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  max-height: calc(100vh - var(--header-height) - 48px);
  overflow-y: auto;
}

.policy-sidebar-title {
  font-size: 0.8125rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-subtle);
  margin-bottom: 16px;
}

.policy-toc-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.policy-toc-link {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.4;
  padding: 4px 0;
  transition: color var(--transition-fast);
}

.policy-toc-link:hover,
.policy-toc-link.is-active {
  color: var(--color-primary);
  font-weight: 700;
}

.policy-content-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 56px;
  box-shadow: var(--shadow-md);
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-main);
}

.policy-section {
  margin-bottom: 48px;
  scroll-margin-top: calc(var(--header-height) + 32px);
}

.policy-section:last-child {
  margin-bottom: 0;
}

.policy-section h2 {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--color-text-main);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-primary-light);
  letter-spacing: -0.01em;
}

.policy-section h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-top: 24px;
  margin-bottom: 12px;
}

.policy-section p {
  margin-bottom: 16px;
  color: var(--color-text-muted);
}

.policy-section ul {
  list-style: disc;
  margin-left: 24px;
  margin-bottom: 20px;
  color: var(--color-text-muted);
}

.policy-section li {
  margin-bottom: 8px;
}

.policy-callout {
  background-color: var(--color-primary-subtle);
  border-left: 4px solid var(--color-primary);
  padding: 20px 24px;
  border-radius: var(--radius-md);
  margin: 24px 0;
  font-weight: 600;
  color: var(--color-primary-dark);
}

/* 20. Responsive Media Queries */
@media (max-width: 1080px) {
  .hero-title {
    font-size: 2.75rem;
  }
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .about-stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-content {
    max-width: 100%;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-highlights {
    max-width: 440px;
    margin: 0 auto;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .policy-layout {
    grid-template-columns: 1fr;
  }
  .policy-sidebar {
    display: none;
  }
  .nav-menu,
  .nav-actions .btn--primary {
    display: none;
  }
  .hamburger-btn {
    display: flex;
  }
}

@media (max-width: 640px) {
  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }
  .section-title {
    font-size: 1.85rem;
  }
  .hero-title {
    font-size: 2.2rem;
  }
  .hero-subtitle {
    font-size: 1.05rem;
  }
  .hero-highlights {
    grid-template-columns: 1fr;
  }
  .features-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: 1fr;
  }
  .why-grid {
    grid-template-columns: 1fr;
  }
  .about-card {
    padding: 32px 20px;
  }
  .about-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
  .policy-content-card {
    padding: 28px 20px;
  }
  .cta-title {
    font-size: 2.1rem;
  }
  .cta-desc {
    font-size: 1.05rem;
  }
  .calc-demo-container {
    padding: 28px 20px;
  }
  .calc-result-val {
    font-size: 2.2rem;
  }
  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}