/* ==========================================================================
   LANDING PAGE DESIGN SYSTEM & STYLESHEET
   Pure Vanilla CSS - Zero Frameworks, Fully Responsive, Anti-Slop Calibrated
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS Custom Properties (Theme Tokens & Dynamic Palette)
   -------------------------------------------------------------------------- */
:root {
  /* Dynamic Palette (Defaults injected or overridden by app.js from content.json) */
  --primary-color: #4f46e5;
  --accent-color: #62E647;
  --surface-color: #090d16;

  /* Typography variables (Defaults populated from content.json) */
  --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* Default Dark Mode Tokens (Calm, high-contrast, zero-slop neon) */
  --bg-page: var(--surface-color, #090d16);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-subtle: #64748b;
  
  /* Glass card surfaces */
  --card-bg: rgba(17, 24, 39, 0.72);
  --card-border: rgba(255, 255, 255, 0.1);
  --card-shadow: 0 20px 45px -15px rgba(0, 0, 0, 0.6);
  
  /* Metallic silver chassis tokens (Independent of theme - always sleek silver) */
  --phone-metal-gradient: linear-gradient(145deg, #f8fafc 0%, #cbd5e1 40%, #94a3b8 75%, #e2e8f0 100%);
  --phone-metal-border: rgba(148, 163, 184, 0.75);
  --phone-button-metal: linear-gradient(180deg, #f1f5f9, #94a3b8);
  --phone-shadow: 0 0 0 1px rgba(255, 255, 255, 0.75) inset, 0 0 0 2px rgba(100, 116, 139, 0.35), 0 35px 70px -15px rgba(0, 0, 0, 0.65);

  /* Spotlight effect tokens */
  --spotlight-glow: rgba(79, 70, 229, 0.25);
  --spotlight-size: 340px;

  /* Layout & transitions */
  --max-width: 1140px;
  --transition-theme: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* Light Mode Overrides */
[data-theme="light"] {
  --bg-page: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #475569;
  --text-subtle: #94a3b8;

  --card-bg: rgba(255, 255, 255, 0.88);
  --card-border: rgba(0, 0, 0, 0.08);
  --card-shadow: 0 20px 40px -12px rgba(15, 23, 42, 0.12);

  --spotlight-glow: rgba(79, 70, 229, 0.12);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-page);
  transition: var(--transition-theme);
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  color: inherit;
  text-wrap: balance; /* Prevents orphan words on headings */
}

p {
  text-wrap: pretty; /* Prevents orphan words on the last line */
}

a {
  color: inherit;
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   2.5 App Launch Splash Screen (Smoothly reveals page once content is ready)
   -------------------------------------------------------------------------- */
.page-splash {
  position: fixed;
  inset: 0;
  z-index: 100000;
  background-color: var(--bg-page);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.35s ease, visibility 0.35s ease;
  pointer-events: auto;
}

.page-splash.splash-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash-spinner {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid rgba(255, 255, 255, 0.14);
  border-top-color: var(--primary-color);
  animation: splashSpin 0.75s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

[data-theme="light"] .splash-spinner {
  border-color: rgba(0, 0, 0, 0.08);
  border-top-color: var(--primary-color);
}

@keyframes splashSpin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* --------------------------------------------------------------------------
   3. Floating Theme Switcher (Fixed Bottom-Right)
   -------------------------------------------------------------------------- */
.floating-theme-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: 1px solid var(--card-border);
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
  color: var(--text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1), background-color 0.2s ease, border-color 0.2s ease;
}

.floating-theme-btn:hover {
  transform: scale(1.1);
}

.floating-theme-btn:active {
  transform: scale(0.95);
}

.theme-icon {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.25s ease, transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Toggle icon display based on theme */
[data-theme="dark"] .sun-icon {
  display: flex;
}
[data-theme="dark"] .moon-icon {
  display: none;
}

[data-theme="light"] .sun-icon {
  display: none;
}
[data-theme="light"] .moon-icon {
  display: flex;
}

/* --------------------------------------------------------------------------
   4. Hero Section & 3D Phone Scroll Effect Track
   -------------------------------------------------------------------------- */
.hero-scroll-track {
  position: relative;
  width: 100%;
  min-height: 190vh; /* Smooth, tactile scroll runway for phone climb */
}

.hero-sticky-stage {
  position: sticky;
  top: 0;
  width: 100%;
  height: 100vh;
  overflow: hidden; /* Phone gracefully extends off fold in start.png, climbs into view in end.png */
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: clamp(4.5rem, 22vh, 13rem); /* Space before first text, matching start.png */
  padding-bottom: 0;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
  box-sizing: border-box;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  will-change: transform;
}

.hero-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--primary-color);
  margin-bottom: 0.85rem;
}

.hero-title {
  font-size: clamp(2.1rem, 5.2vw, 4.25rem);
  font-weight: 800;
  letter-spacing: -0.035em;
  max-width: 15ch;
  margin: 0 auto 1rem auto;
  color: var(--text-main);
  line-height: 1.08;
  white-space: pre-line;
}

.hero-main-text {
  font-size: clamp(0.95rem, 1.3vw, 1.12rem);
  font-weight: 400;
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 auto;
  line-height: 1.55;
  white-space: pre-line;
}

.hero-subtitle:empty,
.hero-title:empty,
.hero-main-text:empty,
.stores-heading:empty,
.copyright-text:empty,
.feature-headline:empty {
  display: none;
}

/* 3D Phone Scroll Container - Sits below text at start.png, climbs over text at end.png */
.phone-scroll-stage {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 720px;
  margin-top: 0;
  display: flex;
  justify-content: center;
}

.phone-perspective {
  width: 100%;
  display: flex;
  justify-content: center;
}

/* Phone chassis with metallic silver styling (Fixed across themes) */
.phone-chassis {
  position: relative;
  width: fit-content;
  height: fit-content;
  background: var(--phone-metal-gradient);
  border-radius: 40px;
  padding: 8px;
  border: 1px solid var(--phone-metal-border);
  box-shadow: var(--phone-shadow);
  transform-style: preserve-3d;
  transform-origin: 50% 50%;
  /* Initial tilt & scale matching start.png */
  transform: translateY(-45px) perspective(900px) rotateX(24deg) scale(0.94);
  will-change: transform;
}

/* Physical Phone Side Buttons (Metallic finish) */
.phone-button {
  position: absolute;
  width: 3.5px;
  background: var(--phone-button-metal);
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.35);
  border-radius: 2px;
}

.button-left-top {
  left: -4.5px;
  top: 18%;
  height: 28px;
}

.button-left-bottom {
  left: -4.5px;
  top: 26%;
  height: 44px;
}

.button-right {
  right: -4.5px;
  top: 23%;
  height: 52px;
}

.button-right-secondary {
  display: none;
}

/* Device chassis variants (Android: sleeker radii & right-side buttons) */
.phone-chassis[data-device="android"] {
  border-radius: 28px;
}

.phone-chassis[data-device="android"] .phone-bezel {
  border-radius: 22px;
}

.phone-chassis[data-device="android"] .phone-glare {
  border-radius: 22px;
}

.phone-chassis[data-device="android"] .button-left-top,
.phone-chassis[data-device="android"] .button-left-bottom {
  display: none;
}

.phone-chassis[data-device="android"] .button-right {
  top: 20%;
  height: 32px;
}

.phone-chassis[data-device="android"] .button-right-secondary {
  display: block;
  right: -4.5px;
  top: 28%;
  height: 58px;
}

/* Device screen inner bezel - aspect-ratio applied directly here so screenshot fits 1:1 with zero top/bottom gaps */
.phone-bezel {
  position: relative;
  height: clamp(444px, 64vh, 624px);
  width: auto;
  aspect-ratio: 1170 / 2532;
  background: #000000;
  border-radius: 32px;
  overflow: hidden;
  box-shadow: inset 0 0 6px rgba(0, 0, 0, 0.9), 0 0 0 2px #0a0a0a;
}

/* Physical glass glare reflection overlay (fades as phone stands upright) */
.phone-glare {
  position: absolute;
  inset: 0;
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.14) 0%, rgba(255, 255, 255, 0.01) 50%, rgba(0, 0, 0, 0.18) 100%);
  pointer-events: none;
  z-index: 15;
  opacity: 0.45;
  transition: opacity 0.08s ease-out;
}

/* Camera Cutouts (always pitch black, mirroring physical glass hole) */
.phone-camera-cutout,
.phone-camera-island {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background-color: #000000;
  z-index: 20;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

/* Pill (iPhone Dynamic Island) */
.phone-camera-cutout.cutout-pill,
.phone-camera-island {
  top: 8px;
  width: 76px;
  height: 20px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
}

.phone-camera-cutout.cutout-pill .camera-lens,
.phone-camera-island .camera-lens {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #334155, #000);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

/* Punch-hole (Android Centered Camera Pin) */
.phone-camera-cutout.cutout-punch-hole {
  top: 10px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-right: 0;
}

.phone-camera-cutout.cutout-punch-hole .camera-lens {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, #38bdf8, #000);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

/* None (Clean bezel with no camera cutout overlay) */
.phone-camera-cutout.cutout-none {
  display: none !important;
}

/* Screen container & screenshot image - Flush edge-to-edge inside bezel with zero top/bottom gaps */
.phone-screen {
  width: 100%;
  height: 100%;
  background-color: #000000;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover; /* Bezel aspect-ratio matches image 1:1 so image fills bezel edge-to-edge without gaps */
  object-position: center center;
  display: block;
  transition: opacity 0.25s ease-out;
}

.phone-screen img:not([src]),
.phone-screen img[src=""] {
  opacity: 0;
}

/* --------------------------------------------------------------------------
   5. Store Badges Section (Flat on surface color, no card wrapper)
   -------------------------------------------------------------------------- */
.stores-section {
  position: relative;
  z-index: 20;
  margin-top: -24vh; /* Pulls store badges up close beneath the hero phone at end of scroll */
  margin-bottom: 0;
  padding: 0 1.5rem 4rem;
  text-align: center;
  background-color: transparent;
  border: none;
  box-shadow: none;
}

.stores-container {
  max-width: var(--max-width);
  margin: 0 auto;
  background: transparent;
  border: none;
  box-shadow: none;
}

.stores-heading {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-subtle);
  margin-bottom: 1.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.stores-badges-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.store-badge-link {
  display: inline-block;
  line-height: 0;
  border-radius: 10px;
  background: transparent;
  border: none;
  box-shadow: none;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.2s ease;
}

.store-badge-link:hover {
  transform: translateY(-3px) scale(1.02);
  opacity: 0.92;
}

.store-badge-img {
  height: 52px; /* Clean, prominent badge size */
  width: auto;
  display: block;
  border-radius: 8px;
  border: none;
  box-shadow: none; /* Flat on the surface color, no card, no shadow */
}

/* --------------------------------------------------------------------------
   6. Dynamic Feature Sections (Color Bands + Spotlight Glass Tabs on Text)
   -------------------------------------------------------------------------- */
.features-wrapper {
  width: 100%;
  display: flex;
  flex-direction: column;
}

/* Full-width alternating color bands */
.feature-band {
  width: 100%;
  padding: 6.5rem 1.5rem;
  position: relative;
  transition: background-color 0.3s ease;
}

/* Surface Band (Even items) */
.feature-band.band-surface {
  background-color: var(--bg-page);
  color: var(--text-main);
}

.feature-band.band-surface .feature-headline {
  color: var(--text-main);
}

.feature-band.band-surface .feature-desc {
  color: var(--text-muted);
}

/* Accent Band (Odd items) with INVERSE text color */
.feature-band.band-accent {
  background-color: var(--accent-color);
}

/* In Dark Theme: Normal text is light (#f8fafc), so inverse text in accent band is dark (#090d16) */
[data-theme="dark"] .feature-band.band-accent {
  color: #090d16;
}
[data-theme="dark"] .feature-band.band-accent .feature-headline {
  color: #090d16;
}
[data-theme="dark"] .feature-band.band-accent .feature-desc {
  color: #1e293b;
}
[data-theme="dark"] .feature-band.band-accent .feature-glass-tab {
  background: rgba(255, 255, 255, 0.38);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.15);
  --spotlight-glow: rgba(255, 255, 255, 0.45);
}

/* In Light Theme: Normal text is dark (#0f172a), so inverse text in accent band is crisp white */
[data-theme="light"] .feature-band.band-accent {
  color: #ffffff;
}
[data-theme="light"] .feature-band.band-accent .feature-headline {
  color: #ffffff;
}
[data-theme="light"] .feature-band.band-accent .feature-desc {
  color: #f1f5f9;
}
[data-theme="light"] .feature-band.band-accent .feature-glass-tab {
  background: rgba(15, 23, 42, 0.35);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.25);
  box-shadow: 0 20px 45px -10px rgba(0, 0, 0, 0.25);
  --spotlight-glow: rgba(255, 255, 255, 0.3);
}

/* Row container inside the band */
.band-container {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 5rem;
}

/* Reverse alternating row (Image Left, Text Right) */
.band-container.reverse {
  flex-direction: row-reverse;
}

/* Glass Tab wrapping the TEXT */
.feature-card-wrapper {
  flex: 1 1 50%;
  display: flex;
  justify-content: center;
}

.spotlight-card.feature-glass-tab {
  position: relative;
  width: 100%;
  max-width: 520px;
  border-radius: 28px;
  padding: 2.75rem 2.5rem;
  background-color: var(--card-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--card-border);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

a.feature-glass-tab {
  text-decoration: none;
  cursor: pointer;
  display: block;
}

.feature-img-link {
  display: block;
  text-decoration: none;
  cursor: pointer;
  line-height: 0;
  border-radius: 20px;
}

.spotlight-card.feature-glass-tab:hover {
  transform: translateY(-4px);
}

/* Dynamic spotlight radial glow on mouse movement */
.spotlight-card.feature-glass-tab::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 28px;
  pointer-events: none;
  background: radial-gradient(
    var(--spotlight-size) circle at var(--mouse-x, -500px) var(--mouse-y, -500px),
    var(--spotlight-glow),
    transparent 80%
  );
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: 1;
}

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

.feature-headline {
  position: relative;
  z-index: 2;
  font-size: clamp(1.85rem, 3.2vw, 2.5rem);
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
  line-height: 1.2;
  white-space: pre-line;
}

.feature-desc {
  position: relative;
  z-index: 2;
  font-size: 1.05rem;
  line-height: 1.65;
  white-space: pre-line;
}

/* Image wrapper (Clean, uncropped display) */
.feature-image-wrapper {
  flex: 1 1 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
}

.feature-img-link {
  display: flex;
  justify-content: center;
  align-items: center;
  max-width: 100%;
}

.feature-img {
  display: block;
  object-fit: contain;
  max-width: 100%;
  max-height: 540px;
  width: auto;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.45);
  transition: transform 0.3s ease;
}

.feature-img:hover {
  transform: scale(1.02);
}

/* Portrait screenshots (e.g. mobile phone capture) */
.feature-img.is-portrait {
  min-height: 300px;
  max-height: 540px;
  width: auto;
  max-width: 100%;
}

/* Landscape screenshots (e.g. desktop capture) */
.feature-img.is-landscape {
  max-width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   7. Footer Section
   -------------------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--card-border);
  padding: 1.5rem 1.5rem; /* 24px vertical spacing */
  text-align: center;
  background-color: var(--bg-page);
  transition: var(--transition-theme);
}

.footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.copyright-text {
  font-size: 0.95rem;
  color: var(--text-subtle);
  letter-spacing: 0.01em;
}

/* --------------------------------------------------------------------------
   8. Responsive Media Queries (Mobile First Stacking)
   -------------------------------------------------------------------------- */
@media (max-width: 860px) {
  .hero-scroll-track {
    min-height: 175vh;
  }

  .hero-sticky-stage {
    padding: clamp(3.5rem, 18vh, 10rem) 1rem 0;
  }

  .phone-chassis {
    width: fit-content;
    height: fit-content;
    border-radius: 36px;
    padding: 7px;
  }

  .phone-chassis[data-device="android"] {
    border-radius: 24px;
  }

  .phone-bezel {
    height: clamp(386px, 62vh, 586px);
    width: auto;
    aspect-ratio: 1170 / 2532;
    border-radius: 29px;
  }

  .phone-chassis[data-device="android"] .phone-bezel,
  .phone-chassis[data-device="android"] .phone-glare {
    border-radius: 18px;
  }

  .stores-section {
    margin-top: -22vh;
    margin-bottom: 0;
    padding: 0 1.25rem 3rem;
  }

  .feature-band {
    padding: 4.5rem 1.25rem;
  }

  /* Clean vertical stacking on mobile */
  .band-container,
  .band-container.reverse {
    flex-direction: column !important;
    gap: 2.5rem;
    text-align: center;
  }

  .feature-card-wrapper {
    width: 100%;
  }

  .spotlight-card.feature-glass-tab {
    max-width: 100%;
    padding: 2rem 1.5rem;
  }

  .feature-image-wrapper {
    width: 100%;
  }

  /* Mobile Portrait: Max 700px high */
  .feature-img.is-portrait {
    max-height: 700px;
    width: auto;
    max-width: 100%;
    min-height: auto;
  }

  /* Mobile Landscape: Full width minus padding */
  .feature-img.is-landscape {
    width: 100%;
    min-width: 0;
    max-width: 100%;
    height: auto;
  }

  .floating-theme-btn {
    bottom: 1.25rem;
    right: 1.25rem;
  }
}

@media (max-width: 480px) {
  .stores-badges-row {
    flex-direction: column;
    gap: 1.25rem;
  }
}