/* ==========================================================================
   MATERIAL 3 EXPRESSIVE - BRAND DESIGN SYSTEM
   "THE PIXEL PULSE" - RETRO-MODERN APP PROMOTIONAL LANDING STYLE
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* Dynamic seed: Default Pixel Blue (Hue: 215, Saturation: 86%, Lightness: 54%) */
  --seed-h: 215;
  --seed-s: 86%;
  --seed-l: 54%;

  /* Calculated Dynamic Colors via Seed HSL */
  --primary: HSL(var(--seed-h), var(--seed-s), var(--seed-l));
  --primary-hover: HSL(var(--seed-h), var(--seed-s), calc(var(--seed-l) - 8%));
  --primary-active: HSL(var(--seed-h), var(--seed-s), calc(var(--seed-l) - 15%));
  
  /* Tonal container formulas mapping back to seed */
  --primary-container: HSL(var(--seed-h), var(--seed-s), 92%);
  --on-primary-container: HSL(var(--seed-h), var(--seed-s), 20%);
  
  --secondary: HSL(calc(var(--seed-h) + 30), calc(var(--seed-s) * 0.8), 58%);
  --secondary-container: HSL(calc(var(--seed-h) + 30), calc(var(--seed-s) * 0.8), 92%);
  --on-secondary-container: HSL(calc(var(--seed-h) + 30), calc(var(--seed-s) * 0.8), 24%);

  --tertiary: HSL(calc(var(--seed-h) - 40), calc(var(--seed-s) * 0.7), 48%);
  --tertiary-container: HSL(calc(var(--seed-h) - 40), calc(var(--seed-s) * 0.7), 90%);
  --on-tertiary-container: HSL(calc(var(--seed-h) - 40), calc(var(--seed-s) * 0.7), 15%);

  /* Neutral Grey theme structures */
  --bg-color: #f6f8fa;
  --surface: #ffffff;
  --on-surface: #17242b;
  --surface-container-low: #f4f6f8;
  --surface-container: #eaedf1;
  --surface-container-high: #e2e6eb;
  --outline-variant: #e1e4e8;
  --text-muted: #5c6c75;

  /* Dark mode overrides (loaded via data-theme) */
  --dark-bg: #0d0e0f;
  --dark-surface: #16181a;
  --dark-on-surface: #e5e7e8;
  --dark-surface-container-low: #1d1f22;
  --dark-surface-container: #24272b;
  --dark-surface-container-high: #2c2f34;
  --dark-outline-variant: #2c2f33;
  --dark-text-muted: #8d9fa9;

  /* Spring easing for fluid tactile physics */
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-standard: cubic-bezier(0.2, 0.8, 0.2, 1);
  
  /* Font Family Stacks */
  --font-display: 'Outfit', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  /* Standard Layout Spacing */
  --container-width: 1200px;
  --nav-height: 80px;
  --border-radius-xl: 28px;
  --border-radius-lg: 24px;
  --border-radius-md: 16px;
  --border-radius-pill: 100px;
}

/* Dynamic Themes via selector flags */
[data-theme="dark"] {
  --bg-color: var(--dark-bg);
  --surface: var(--dark-surface);
  --on-surface: var(--dark-on-surface);
  --surface-container-low: var(--dark-surface-container-low);
  --surface-container: var(--dark-surface-container);
  --surface-container-high: var(--dark-surface-container-high);
  --outline-variant: var(--dark-outline-variant);
  --text-muted: var(--dark-text-muted);

  /* Adjust Tonal containers in dark mode for M3 Expressive container alpha strategies */
  --primary-container: HSL(var(--seed-h), calc(var(--seed-s) * 0.4), 16%);
  --on-primary-container: HSL(var(--seed-h), var(--seed-s), 82%);

  --secondary-container: HSL(calc(var(--seed-h) + 30), calc(var(--seed-s) * 0.4), 16%);
  --on-secondary-container: HSL(calc(var(--seed-h) + 30), calc(var(--seed-s) * 0.8), 82%);

  --tertiary-container: HSL(calc(var(--seed-h) - 40), calc(var(--seed-s) * 0.4), 15%);
  --on-tertiary-container: HSL(calc(var(--seed-h) - 40), calc(var(--seed-s) * 0.7), 80%);
}

/* ==========================================================================
   RESET & BASE STYLING
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-color);
  color: var(--on-surface);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 0.4s var(--ease-standard), color 0.4s var(--ease-standard);
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--on-surface);
  line-height: 1.25;
}

/* ==========================================================================
   NAVIGATION BAR
   ========================================================================== */

.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-height);
  z-index: 1000;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
}

.nav-header.scrolled {
  background-color: rgba(246, 248, 250, 0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: var(--outline-variant);
}

/* Toggling translucent overlay strictly based on theme mode */
body:not([data-theme="dark"]) .nav-header.scrolled {
  background-color: rgba(246, 248, 250, 0.75);
}
body[data-theme="dark"] .nav-header.scrolled {
  background-color: rgba(13, 14, 15, 0.75);
}

.nav-container {
  width: 90%;
  max-width: var(--container-width);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--on-surface);
  letter-spacing: -0.5px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: transform 0.3s var(--ease-spring);
}

.logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 12px;
}

.logo:hover .logo-icon {
  transform: scale(1.1) rotate(5deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-link {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

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

.btn-header {
  padding: 10px 20px;
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  font-family: var(--font-display);
  font-weight: 700;
  border-radius: var(--border-radius-pill);
  transition: transform 0.2s var(--ease-spring), opacity 0.2s ease;
}

.btn-header:hover {
  transform: translateY(-2px);
  opacity: 0.95;
}

/* ==========================================================================
   HERO SECTION
   ========================================================================== */

.hero-section {
  padding: 180px 0 100px 0;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  overflow: hidden;
}

/* Dynamic background gradients */
.hero-bg-accent {
  position: absolute;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(var(--seed-h), var(--seed-s), 50%, 0.12) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  z-index: 1;
  pointer-events: none;
}

.hero-container {
  width: 90%;
  max-width: var(--container-width);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-pill-badge {
  align-self: flex-start;
  padding: 6px 16px;
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: var(--border-radius-pill);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: pulseBadge 3s infinite ease-in-out;
}

@keyframes pulseBadge {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--on-surface);
}

.hero-title span.pulse-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  position: relative;
}

.hero-description {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 10px;
}

.btn-primary {
  padding: 18px 36px;
  background-color: var(--primary);
  color: #ffffff !important;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 24px rgba(var(--seed-h), var(--seed-s), 50%, 0.2);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform 0.2s var(--ease-spring), box-shadow 0.2s ease, background-color 0.2s ease;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
  transform: translateY(-4px);
  box-shadow: 0 15px 30px rgba(var(--seed-h), var(--seed-s), 50%, 0.35);
}

.btn-primary:active {
  background-color: var(--primary-active);
  transform: translateY(-2px);
}

.btn-secondary {
  padding: 18px 32px;
  background-color: var(--surface-container);
  color: var(--on-surface);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--outline-variant);
  display: flex;
  align-items: center;
  gap: 12px;
  transition: transform 0.2s var(--ease-spring), background-color 0.2s ease;
}

.btn-secondary:hover {
  background-color: var(--surface-container-high);
  transform: translateY(-4px);
}

.hero-stats-row {
  display: flex;
  gap: 40px;
  margin-top: 20px;
  border-top: 1px solid var(--outline-variant);
  padding-top: 30px;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--on-surface);
}

.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

/* ==========================================================================
   CSS DEVICE PREVIEW
   ========================================================================== */

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

.hero-screenshot {
  width: 100%;
  max-width: 320px;
  filter: drop-shadow(0 20px 35px rgba(0, 0, 0, 0.18));
  transition: transform 0.3s var(--ease-spring);
  z-index: 2;
}

.hero-screenshot:hover {
  transform: scale(1.03) translateY(-4px);
  filter: drop-shadow(0 25px 45px rgba(0, 0, 0, 0.22));
}



/* Decorator overlays in preview section */
.decorator-pill-1 {
  position: absolute;
  top: 15%;
  left: -80px;
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
  transition: background-color 0.4s var(--ease-standard);
}

.decorator-pill-1-icon {
  font-size: 1.5rem;
}

.decorator-pill-2 {
  position: absolute;
  bottom: 12%;
  right: -50px;
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  padding: 12px 20px;
  border-radius: var(--border-radius-md);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.05);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 10;
  transition: background-color 0.4s var(--ease-standard);
}

/* ==========================================================================
   DYNAMIC THEME ENGINE SECTION
   ========================================================================== */

.theme-showcase-section {
  padding: 100px 0;
  background-color: var(--surface-container-low);
  display: flex;
  justify-content: center;
  transition: background-color 0.4s var(--ease-standard);
}

.theme-container {
  width: 90%;
  max-width: var(--container-width);
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 80px;
  align-items: center;
}

.theme-text {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.section-label {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--primary);
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -1px;
}

.section-description {
  font-size: 1.1rem;
  color: var(--text-muted);
}

/* Tonal Palette Engine Controls */
.engine-control-panel {
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--border-radius-xl);
  padding: 32px;
  box-shadow: 0 15px 40px rgba(0,0,0,0.03);
  display: flex;
  flex-direction: column;
  gap: 24px;
  transition: background-color 0.4s var(--ease-standard);
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.control-label {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--on-surface);
}

/* Chip style color picker */
.color-picker-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.color-chip {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 3px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease-spring), border-color 0.2s ease;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.08);
}

.color-chip:hover {
  transform: scale(1.1);
}

.color-chip.active {
  border-color: var(--on-surface);
  transform: scale(1.08);
}

/* Theme seed values mapping */
.color-chip.blue   { background-color: #005faf; }
.color-chip.violet { background-color: #6750A4; }
.color-chip.green  { background-color: #386a20; }
.color-chip.orange { background-color: #a45300; }
.color-chip.pink   { background-color: #b90063; }
.color-chip.charcoal { background-color: #4b616d; }

/* Dynamic mode togglers */
.mode-toggle-group {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  background-color: var(--surface-container-low);
  padding: 6px;
  border-radius: var(--border-radius-md);
  border: 1px solid var(--outline-variant);
  transition: background-color 0.4s var(--ease-standard);
}

.mode-btn {
  background: none;
  border: none;
  padding: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-muted);
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.mode-btn.active {
  background-color: var(--surface);
  color: var(--primary);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

/* Interactive tonal palette output cards */
.tonal-palette-visualizer {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
  margin-top: 10px;
}

.tonal-swatch {
  height: 60px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 8px;
  font-size: 0.65rem;
  font-weight: 700;
  color: transparent;
  transition: background-color 0.4s ease;
}

.tonal-swatch:hover {
  color: inherit;
}

.swatch-0 { background-color: var(--primary); color: #ffffff !important; }
.swatch-1 { background-color: var(--primary-container); color: var(--on-primary-container) !important; }
.swatch-2 { background-color: var(--secondary-container); color: var(--on-secondary-container) !important; }
.swatch-3 { background-color: var(--tertiary-container); color: var(--on-tertiary-container) !important; }
.swatch-4 { background-color: var(--surface-container-high); color: var(--on-surface) !important; }

/* ==========================================================================
   APP PILLARS / SPECIFICATIONS FEATURES SECTION
   ========================================================================== */

.features-section {
  padding: 120px 0;
  display: flex;
  justify-content: center;
}

.features-container {
  width: 90%;
  max-width: var(--container-width);
  display: flex;
  flex-direction: column;
  gap: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Material 3 Card style styling */
.feature-card {
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--border-radius-xl);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.01);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease, background-color 0.4s var(--ease-standard);
  position: relative;
  overflow: hidden;
}

.feature-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.04);
}

.feature-icon-wrapper {
  width: 58px;
  height: 58px;
  border-radius: var(--border-radius-md);
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  transition: transform 0.3s var(--ease-spring);
}

.feature-card:hover .feature-icon-wrapper {
  transform: rotate(6deg) scale(1.05);
}

.feature-card h3 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--on-surface);
}

.feature-card p {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.feature-card-decoration {
  position: absolute;
  bottom: -20px;
  right: -20px;
  font-size: 5rem;
  opacity: 0.03;
  pointer-events: none;
  font-weight: bold;
}

/* ==========================================================================
   APP COMPONENT EXPLAINERS (IN-DEPTH VALUE PROPOSITIONS)
   ========================================================================== */

.explainer-section {
  padding: 100px 0;
  display: flex;
  justify-content: center;
}

.explainer-section.alt {
  background-color: var(--surface-container-low);
  transition: background-color 0.4s var(--ease-standard);
}

.explainer-container {
  width: 90%;
  max-width: var(--container-width);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}

.explainer-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Rich responsive mockup illustration using strictly semantic structures */
.retro-widget {
  background-color: var(--surface);
  border: 1px solid var(--outline-variant);
  border-radius: var(--border-radius-xl);
  padding: 30px;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.02);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: background-color 0.4s var(--ease-standard);
}

.retro-widget-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--outline-variant);
  padding-bottom: 15px;
}

.retro-widget-badge {
  padding: 6px 12px;
  background-color: var(--secondary-container);
  color: var(--on-secondary-container);
  border-radius: 8px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.75rem;
}

/* Settings divided segmented demonstration card */
.segmented-menu {
  display: flex;
  flex-direction: column;
  gap: 4px; /* Strict 4dp gap from app guidelines */
}

.segmented-item {
  background-color: var(--surface-container-low);
  padding: 16px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color 0.2s ease, border-radius 0.2s ease;
}

/* Adaptive Roundings from CONSTITUTION.md */
.segmented-item.top {
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
}

.segmented-item.middle {
  border-radius: 4px;
}

.segmented-item.bottom {
  border-top-left-radius: 4px;
  border-top-right-radius: 4px;
  border-bottom-left-radius: 24px;
  border-bottom-right-radius: 24px;
}

.segmented-item-label {
  font-weight: 700;
  font-size: 0.95rem;
}

.segmented-toggle {
  width: 44px;
  height: 24px;
  background-color: var(--surface-container-high);
  border-radius: 12px;
  padding: 2px;
  cursor: pointer;
  position: relative;
  transition: background-color 0.2s ease;
}

.segmented-toggle.active {
  background-color: var(--primary);
}

.segmented-toggle-thumb {
  width: 20px;
  height: 20px;
  background-color: var(--surface);
  border-radius: 50%;
  position: absolute;
  left: 2px;
  top: 2px;
  transition: transform 0.2s var(--ease-spring);
}

.segmented-toggle.active .segmented-toggle-thumb {
  transform: translateX(20px);
}

/* Streak Showcase Screenshot Styling */
.streak-showcase-img {
  width: 100%;
  max-width: 440px;
  border-radius: var(--border-radius-xl);
  border: 1px solid var(--outline-variant);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s ease;
}

.streak-showcase-img:hover {
  transform: scale(1.02) translateY(-4px);
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   ROADMAP TIMELINE
   ========================================================================== */

.roadmap-section {
  padding: 100px 0;
  display: flex;
  justify-content: center;
}

.roadmap-container {
  width: 90%;
  max-width: 800px;
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.roadmap-timeline {
  display: flex;
  flex-direction: column;
  position: relative;
  padding-left: 32px;
}

.roadmap-timeline::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  background-color: var(--outline-variant);
}

.roadmap-item {
  position: relative;
  padding-bottom: 40px;
}

.roadmap-item::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--surface);
  border: 3px solid var(--primary);
  z-index: 2;
  transition: background-color 0.4s var(--ease-standard);
}

.roadmap-item.completed::before {
  background-color: var(--primary);
}

.roadmap-version {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.9rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.roadmap-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 4px 0 8px 0;
}

.roadmap-desc {
  color: var(--text-muted);
}

/* ==========================================================================
   DOWNLOAD CALL TO ACTION (CTA)
   ========================================================================== */

.cta-section {
  padding: 100px 0;
  display: flex;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.cta-container {
  width: 90%;
  max-width: var(--container-width);
  background: linear-gradient(135deg, var(--primary-container), var(--secondary-container));
  border-radius: var(--border-radius-xl);
  padding: 80px 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  position: relative;
  z-index: 2;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05);
}

.cta-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.cta-title {
  font-size: 3rem;
  font-weight: 800;
  color: var(--on-primary-container);
  letter-spacing: -1.5px;
  line-height: 1.1;
}

.cta-desc {
  font-size: 1.2rem;
  color: var(--on-primary-container);
  opacity: 0.85;
  max-width: 680px;
}

.cta-badge-wrapper {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 10px;
}

.play-store-badge-btn {
  height: 58px;
  transition: transform 0.2s var(--ease-spring);
}

.play-store-badge-btn:hover {
  transform: translateY(-4px);
}



/* ==========================================================================
   SCROLL MORPHING FLOATING ACTION BUTTON (FAB)
   ========================================================================== */

.morphing-fab {
  position: fixed;
  bottom: 30px;
  right: 30px;
  height: 60px;
  background-color: var(--primary);
  color: #ffffff !important;
  border-radius: var(--border-radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow: 0 10px 30px rgba(var(--seed-h), var(--seed-s), 50%, 0.3);
  z-index: 999;
  cursor: pointer;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  padding: 0 24px;
  border: none;
  transition: width 0.4s var(--ease-spring), 
              border-radius 0.4s var(--ease-spring), 
              padding 0.4s var(--ease-spring), 
              transform 0.2s var(--ease-spring), 
              background-color 0.2s ease,
              box-shadow 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
}

.morphing-fab:hover {
  transform: translateY(-4px);
  background-color: var(--primary-hover);
  box-shadow: 0 15px 35px rgba(var(--seed-h), var(--seed-s), 50%, 0.45);
}

.morphing-fab-icon {
  font-size: 1.4rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.morphing-fab-label {
  transition: opacity 0.3s ease;
}

/* Collapsed class triggered via JS on scroll */
.morphing-fab.collapsed {
  width: 60px;
  padding: 0;
  border-radius: 20px; /* Squircle */
}

.morphing-fab.collapsed .morphing-fab-label {
  display: none;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  padding: 80px 0 40px 0;
  background-color: var(--dark-bg);
  color: #96999f;
  display: flex;
  justify-content: center;
  border-top: 1px solid var(--dark-outline-variant);
}

.footer-container {
  width: 90%;
  max-width: var(--container-width);
  display: flex;
  flex-direction: column;
  gap: 50px;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 60px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  color: #ffffff;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-logo .logo-icon {
  box-shadow: none;
}

.footer-desc {
  line-height: 1.6;
}

.footer-links-group {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  text-align: right;
  gap: 16px;
}

.footer-links-title {
  font-family: var(--font-display);
  font-weight: 700;
  color: #ffffff;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.footer-links-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-link-item a {
  color: #96999f;
  transition: color 0.2s ease;
}

.footer-link-item a:hover {
  color: #ffffff;
}

.footer-socials {
  display: flex;
  gap: 16px;
  margin-top: 10px;
}

.footer-social-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.05);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease;
}

.footer-social-btn:hover {
  background-color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 30px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.footer-bottom a {
  color: #ffffff;
  font-weight: 700;
}

/* ==========================================================================
   SCROLL REVEAL ANIMATIONS
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-standard), transform 0.8s var(--ease-standard);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   RESPONSIVE DESIGN BREAKPOINTS
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --nav-height: 70px;
  }
  
  .hero-container {
    grid-template-columns: 1fr;
    gap: 50px;
    text-align: center;
  }
  
  .hero-pill-badge {
    align-self: center;
  }
  
  .hero-description {
    max-width: 100%;
  }
  
  .hero-actions {
    justify-content: center;
  }
  
  .hero-stats-row {
    justify-content: center;
  }
  
  .hero-preview {
    margin-top: 20px;
  }
  
  .theme-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .explainer-container {
    grid-template-columns: 1fr;
    gap: 50px;
    text-align: center;
  }
  
  .explainer-container .explainer-visual {
    order: -1;
  }
  
  .cta-container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding: 60px 40px;
  }
}

@media (max-width: 768px) {
  .nav-links, .btn-header {
    display: none; /* Mobile hamburger menus are complex; keep it clean and focused */
  }
  
  .hero-title {
    font-size: 2.8rem;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-main {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .footer-links-group {
    align-items: flex-start;
    text-align: left;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }
  
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }
  
  .btn-primary, .btn-secondary {
    width: 100%;
    justify-content: center;
  }
}