/* ==========================================================================
   Day2Day — Core Design System & Styles (Redesign)
   ========================================================================== */

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

/* --- Custom Properties & Tokens --- */
:root {
  /* Brand Primary */
  --brand-color: #38BDF8;
  --brand-rgb: 56, 189, 248;
  --brand-hsl: 199, 89%, 60%;

  /* Fonts */
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3.5rem;
  --space-3xl: 5.5rem;
  --space-4xl: 7.5rem;

  /* Radius */
  --radius-xs: 6px;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-base: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;

  /* Semantic Module Color Tokens */
  --color-today: #3b82f6;
  --color-schedule: #64748b;
  --color-priorities: #64748b;
  --color-habits: #64748b;
  --color-food: #10b981;
  --color-spending: #f59e0b;
  --color-investing: #f4f4f5;
  --color-intelligence: #f59e0b;
  --color-leisure: #f43f5e;
  --color-planning: #8b5cf6;
  --color-reflecting: #38bdf8;
}

/* --- Dark Theme (Default) --- */
:root {
  --bg-primary: #08080c;
  --bg-secondary: #0f0f15;
  --bg-card: rgba(255, 255, 255, 0.025);
  --bg-card-hover: rgba(255, 255, 255, 0.05);
  --bg-glass: rgba(15, 15, 21, 0.6);
  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);

  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --color-investing: #f4f4f5;
  --color-investing-rgb: 244, 244, 245;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.5);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 20px 40px -15px rgba(0, 0, 0, 0.8);
  --glow-opacity: 0.12;
  --nav-bg: rgba(8, 8, 12, 0.8);
}

/* --- Light Theme Overrides --- */
:root.light-mode {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-card: rgba(0, 0, 0, 0.015);
  --bg-card-hover: rgba(0, 0, 0, 0.035);
  --bg-glass: rgba(248, 250, 252, 0.75);
  --border: rgba(0, 0, 0, 0.06);
  --border-hover: rgba(0, 0, 0, 0.12);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --color-investing: #0f172a;
  --color-investing-rgb: 15, 23, 42;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.08);
  --glow-opacity: 0.05;
  --nav-bg: rgba(248, 250, 252, 0.85);
}

/* --- Base & Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* --- Structure / Container --- */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

/* --- Typography Helpers --- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
}

.gradient-text {
  background: linear-gradient(135deg, var(--brand-color), #818cf8, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-2xl);
}

.section__title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-top: var(--space-sm);
  margin-bottom: var(--space-md);
  letter-spacing: -1px;
}

.section__desc {
  font-size: clamp(1rem, 1.25vw, 1.15rem);
  color: var(--text-secondary);
}

/* --- Badges --- */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.badge--primary {
  background: rgba(var(--brand-rgb), 0.1);
  border: 1px solid rgba(var(--brand-rgb), 0.2);
  color: var(--brand-color);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  cursor: pointer;
  outline: none;
  border: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--brand-color), #4f46e5);
  color: #ffffff;
  padding: 14px 28px;
  box-shadow: 0 4px 20px rgba(var(--brand-rgb), 0.25);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(var(--brand-rgb), 0.35);
  filter: brightness(1.1);
}

.btn--secondary {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 14px 28px;
}

.btn--secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
}

.btn--small {
  padding: 8px 18px;
  font-size: 0.875rem;
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  min-height: 48px;
  height: auto;
  z-index: 1000;
  background: var(--nav-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.nav__inner {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  padding: 6px 24px;
}

.nav__logo-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
  height: auto;
}

.nav__logo img {
  height: 34px;
  width: auto;
  display: block;
}

.nav__logo img.logo-light {
  display: none;
}

.nav__logo img.logo-dark {
  display: block;
}

:root.light-mode .nav__logo img.logo-light {
  display: block;
}

:root.light-mode .nav__logo img.logo-dark {
  display: none;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: var(--transition-base);
}

.nav__link:hover {
  color: var(--text-primary);
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* --- Theme Toggle Switch --- */
.theme-toggle {
  display: none !important; /* Set theme automatically from system preference */
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 8px;
  border-radius: 50%;
  transition: var(--transition-base);
  align-items: center;
  justify-content: center;
}

.nav__promo-text-mobile {
  display: none;
}

.theme-toggle:hover {
  color: var(--text-primary);
  background: var(--bg-card-hover);
}

.theme-toggle svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- Hero Section --- */
.hero {
  padding-top: 118px;
  padding-bottom: var(--space-4xl);
  overflow: hidden;
  position: relative;
}

@media (min-width: 769px) {
  .hero {
    height: 100vh !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    padding-top: 118px !important;
    padding-bottom: 24px !important;
    box-sizing: border-box !important;
  }
}

.hero__glow {
  position: absolute;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 800px;
  height: 400px;
  background: radial-gradient(circle, rgba(var(--brand-rgb), 0.15) 0%, transparent 70%);
  z-index: -1;
  pointer-events: none;
  display: none; /* Disabled on dark mode */
}

:root.light-mode .hero__glow {
  display: block; /* Enabled on light mode */
}

.hero__content {
  text-align: center;
  max-width: 840px;
  margin: 0 auto var(--space-3xl);
}

.hero__title {
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-top: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__subtitle {
  font-size: clamp(1.15rem, 1.8vw, 1.4rem);
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.6;
  text-wrap: balance;
}

.hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

/* --- CSS Interactive App Mockup (Hero) --- */
.hero__mockup {
  position: relative;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-secondary);
  box-shadow: var(--shadow-lg);
  padding: 16px;
  transform: perspective(1000px) rotateX(5deg);
  transition: transform var(--transition-slow);
}

.hero__mockup:hover {
  transform: perspective(1000px) rotateX(0deg);
}

.mockup-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  margin-bottom: 16px;
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}

.mockup-dots span:nth-child(1) { background-color: #ef4444; }
.mockup-dots span:nth-child(2) { background-color: #eab308; }
.mockup-dots span:nth-child(3) { background-color: #22c55e; }

.mockup-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.mockup-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 16px;
  min-height: 360px;
}

.mockup-sidebar {
  border-right: 1px solid var(--border);
  padding-right: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.mockup-nav-item:hover, .mockup-nav-item.active {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.mockup-nav-item.active {
  border-left: 2px solid var(--brand-color);
}

.mockup-body {
  padding-left: 8px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.mockup-today-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
}

.mockup-today-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.mockup-h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

.mockup-cheekybux {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.2);
  color: #f59e0b;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.mockup-habit-tiles {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.mockup-habit-tile {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  transition: var(--transition-base);
  font-size: 0.85rem;
  font-weight: 500;
  user-select: none;
}

.mockup-habit-tile.checked {
  border-color: var(--brand-color);
  background: rgba(56, 189, 248, 0.05);
}

.mockup-checkbox {
  width: 16px;
  height: 16px;
  border-radius: 4px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.65rem;
  color: transparent;
  transition: var(--transition-fast);
}

.mockup-habit-tile.checked .mockup-checkbox {
  background: var(--brand-color);
  border-color: var(--brand-color);
  color: #ffffff;
}

.mockup-progress-wrapper {
  margin-top: 12px;
}

.mockup-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.mockup-progress-bar {
  height: 6px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.mockup-progress-fill {
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, var(--brand-color), #818cf8);
  transition: width 0.5s ease;
}

/* --- Grand Vision Section --- */
.grand-vision {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.ecosystem-mobile-preview-wrapper {
  display: none;
}

.ecosystem {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.ecosystem-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  position: sticky;
  top: 100px;
}

.ecosystem-nav-btn {
  background: none;
  border: none;
  outline: none;
  text-align: left;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition-fast);
  color: var(--text-secondary);
}

.ecosystem-nav-btn:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.ecosystem-nav-btn.active {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-left: 3px solid var(--module-color);
}

.ecosystem-nav-btn__emoji {
  font-size: 1.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
}

.ecosystem-nav-btn__name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
}

.module-status {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: inline-block;
  line-height: 1;
}

.module-status--beta {
  background: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.2);
}

.module-status--progress {
  background: rgba(245, 158, 11, 0.12);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.module-status--soon {
  background: rgba(100, 116, 139, 0.12);
  color: #94a3b8;
  border: 1px solid rgba(100, 116, 139, 0.2);
}

.ecosystem-content {
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px 32px;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: var(--space-md);
  box-shadow: var(--shadow-md);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.ecosystem-header {
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}

.ecosystem-tagline {
  font-size: 1.35rem;
  font-weight: 700;
}

.ecosystem-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 32px;
  align-items: start;
}

.ecosystem-features {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ecosystem-feature-item {
  display: flex;
  gap: 12px;
}

.ecosystem-feature-icon {
  font-size: 1rem;
  flex-shrink: 0;
  color: var(--module-color);
}

.ecosystem-feature-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ecosystem-feature-text strong {
  color: var(--text-primary);
}

/* --- Ecosystem 3-Column/4-Column Sub-Card Layout --- */
.ecosystem-features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  width: 100%;
  margin-top: var(--space-md);
}

@media (min-width: 992px) {
  .ecosystem-features-grid {
    grid-template-columns: repeat(3, 1fr) !important;
  }
  .ecosystem-features-grid.grid-4-col {
    grid-template-columns: repeat(4, 1fr) !important;
  }
}

.ecosystem-feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  transition: var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.ecosystem-feature-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.ecosystem-feature-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.ecosystem-feature-card__icon {
  font-size: 1.5rem;
}

.ecosystem-feature-card__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.ecosystem-feature-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Live CSS Mockups per Module --- */
.ecosystem-mockup-pane {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: relative;
  overflow: hidden;
  transition: var(--transition-base);
}

/* Specific mockup panels */
.mockup-item-schedule {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mockup-schedule-event {
  background: rgba(100, 116, 139, 0.08);
  border-left: 3px solid var(--color-schedule);
  padding: 10px 14px;
  border-radius: var(--radius-xs);
  font-size: 0.8rem;
}

.mockup-schedule-time {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.mockup-item-priorities {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mockup-priority-pill {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px;
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mockup-pill-tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  background: rgba(100, 116, 139, 0.1);
  border: 1px solid var(--border);
}

.mockup-item-food {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-food-chart {
  display: flex;
  justify-content: space-around;
  margin-bottom: 8px;
}

.mockup-donut {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: conic-gradient(var(--color-food) 70%, var(--border) 0);
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-donut-inner {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--bg-secondary);
  font-size: 0.7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mockup-item-spending {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.mockup-spending-limit {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.mockup-spending-bar {
  height: 8px;
  background: var(--border);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.mockup-spending-fill {
  height: 100%;
  width: 65%;
  background: var(--color-spending);
}

.mockup-item-investing {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mockup-invest-val {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-heading);
}

.mockup-invest-graph {
  height: 60px;
  background: linear-gradient(180deg, rgba(var(--color-investing-rgb), 0.1) 0%, transparent 100%);
  border-bottom: 2px solid var(--color-investing);
  border-radius: 2px;
}

/* --- Interactive Whitelist/Waitlist Beta Form Section --- */
.waitlist-section {
  padding: var(--space-4xl) 0;
  background-color: var(--bg-primary);
  border-top: 1px solid var(--border);
  transition: background-color var(--transition-base);
}

.waitlist-video-container {
  display: none;
}

.waitlist-card {
  max-width: 640px;
  margin: 0 auto;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.waitlist-card__title {
  font-size: 2.25rem;
  margin-bottom: var(--space-xs);
  letter-spacing: -0.5px;
}

.waitlist-card__desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto var(--space-xl);
  line-height: 1.6;
  text-wrap: balance;
}

/* --- Inline Waitlist Form --- */
.hero-waitlist-form {
  max-width: 460px;
  margin: 0 auto;
  width: 100%;
}

.hero-waitlist-form__inner {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px 6px 6px 20px;
  transition: var(--transition-base);
}

.hero-waitlist-form__inner:focus-within {
  border-color: var(--brand-color);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.hero-waitlist-form__input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-width: 0;
}

.hero-waitlist-form__input::placeholder {
  color: var(--text-muted);
}

.hero-waitlist-form__btn {
  flex-shrink: 0;
  padding: 10px 22px;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
}

.hero-waitlist-form__message {
  font-size: 0.875rem;
  margin-top: 12px;
  min-height: 20px;
  transition: var(--transition-base);
}

.hero-waitlist-form__message--success {
  color: var(--color-food);
}

.hero-waitlist-form__message--error {
  color: #ef4444;
}

/* --- Footer --- */
.footer {
  background-color: #050508;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-2xl) 0 var(--space-xl);
  color: #94a3b8; /* Slate-400 for high-contrast on dark background regardless of page theme */
}

.footer__inner {
  display: grid;
  grid-template-columns: 2.2fr repeat(3, 1.2fr);
  gap: 48px;
  margin-bottom: var(--space-2xl);
}

.footer__brand-desc {
  font-size: 0.95rem;
  line-height: 1.6;
  margin-top: 16px;
  max-width: 320px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #f8fafc; /* Permanent white color for footer headings to avoid visibility issues in light mode */
  margin-bottom: 16px;
}

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

.footer__link {
  color: #94a3b8;
  text-decoration: none;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer__link:hover {
  color: #f8fafc;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer__copyright {
  font-size: 0.85rem;
}

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

.footer__social {
  color: #94a3b8;
  text-decoration: none;
  transition: var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer__social-icon {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  filter: grayscale(1) brightness(0.8);
  transition: filter 0.15s ease;
  vertical-align: middle;
}

.footer__social:hover .footer__social-icon {
  filter: grayscale(0) brightness(1);
}

/* --- Animations & Fades --- */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1), transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* --- Responsive Adjustments --- */
@media (max-width: 992px) {
  .ecosystem {
    grid-template-columns: 1fr;
  }
  .ecosystem-sidebar {
    position: static;
    display: flex;
    flex-direction: row;
    overflow-x: auto;
    padding: 8px 24px 16px;
    margin: 0 -24px var(--space-md);
    gap: 8px;
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
    -webkit-mask-image: linear-gradient(to right, transparent, black 24px, black calc(100% - 24px), transparent);
    mask-image: linear-gradient(to right, transparent, black 24px, black calc(100% - 24px), transparent);
  }
  .ecosystem-sidebar::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
  }
  .ecosystem-nav-btn {
    flex-shrink: 0;
    border-radius: var(--radius-full) !important;
    padding: 8px 16px !important;
    background: var(--bg-card);
    border: 1px solid var(--border) !important;
    border-left: 1px solid var(--border) !important;
    white-space: nowrap !important;
    text-align: center;
    justify-content: center;
  }
  .ecosystem-nav-btn.active {
    background: rgba(var(--module-rgb), 0.08) !important;
    border-color: var(--module-color) !important;
    border-left-color: var(--module-color) !important;
    color: var(--text-primary);
  }
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .ecosystem-desktop-wrapper {
    display: none !important;
  }
  .ecosystem-mobile-preview-wrapper {
    display: block;
  }
  


  /* Concept 1: Accordion */
  .accordion-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
  }
  .accordion-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }
  .accordion-item.open {
    border-color: var(--m-color);
    box-shadow: 0 4px 20px -5px rgba(0, 0, 0, 0.3);
  }
  .accordion-trigger {
    width: 100%;
    background: none;
    border: none;
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.95rem;
    text-align: left;
  }
  .accordion-icon-title {
    display: flex;
    align-items: center;
    gap: 12px;
  }
  .accordion-emoji {
    font-size: 1.1rem;
    display: inline-block;
  }
  .accordion-trigger-right {
    display: flex;
    align-items: center;
    gap: 10px;
  }
  .accordion-chevron {
    transition: transform 0.3s ease;
    font-size: 0.75rem;
    color: var(--text-muted);
  }
  .accordion-item.open .accordion-chevron {
    transform: rotate(180deg);
    color: var(--text-primary);
  }
  .accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .accordion-item.open .accordion-body {
    max-height: 1200px;
  }
  .accordion-content-inner {
    padding: 16px;
    border-top: 1px solid var(--border);
    background: rgba(var(--bg-secondary-rgb), 0.1);
  }  /* Concept 2: Swipeable Carousel */
  .carousel-concept {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
    width: 100%;
  }

  /* Horizontal Navbar */
  .carousel-navbar {
    display: flex;
    overflow-x: auto;
    gap: 8px;
    padding: 6px 12px 14px;
    margin-bottom: 2px;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    -webkit-mask-image: linear-gradient(to right, transparent, black 16px, black calc(100% - 16px), transparent);
    mask-image: linear-gradient(to right, transparent, black 16px, black calc(100% - 16px), transparent);
  }

  .carousel-navbar::-webkit-scrollbar {
    display: none;
  }

  .carousel-nav-btn {
    flex: 0 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
  }

  .carousel-nav-btn.active {
    background: rgba(var(--m-rgb), 0.12);
    border-color: var(--m-color);
    color: var(--m-color);
    font-weight: 700;
    box-shadow: 0 2px 10px -3px rgba(var(--m-rgb), 0.2);
  }

  /* Viewport and Track */
  .carousel-viewport {
    width: 100%;
    overflow: hidden;
  }

  .carousel-track {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
    gap: 14px;
    padding: 4px 16px 20px;
    margin: 0 -16px; /* offset the page padding so cards bleed to screen edges */
    width: calc(100% + 32px);
  }

  .carousel-track::-webkit-scrollbar {
    display: none;
  }

  /* Cards */
  .carousel-card {
    flex: 0 0 84vw;
    scroll-snap-align: center;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: 4px solid var(--m-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-sizing: border-box;
    box-shadow: 0 4px 12px -5px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
  }

  .carousel-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
  }

  .carousel-card-title-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    color: var(--text-primary);
    font-size: 1.05rem;
  }

  .carousel-card-emoji {
    font-size: 1.2rem;
  }

  .carousel-card-body {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }

  /* Mobile Compact Mode for Module Expandable Cards */
  .expandable-cards-list {
    display: flex;
    flex-direction: column;
    height: calc(100svh - 180px);
    min-height: 480px;
    gap: 5px !important;
    margin-top: 20px !important;
    box-sizing: border-box;
  }
  .expandable-cards-list.has-open,
  .expandable-cards-list:has(.open) {
    height: auto !important;
  }
  .expandable-card {
    padding: 10px 14px !important;
    gap: 0px !important;
    border-top: 1.5px solid var(--m-color) !important;
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex: 1 1 0% !important;
    height: 0 !important;
    min-height: 0 !important;
    overflow: hidden !important;
    box-sizing: border-box;
  }
  .expandable-card.open {
    padding: 12px 14px !important;
    gap: 10px !important;
    border-top: 3px solid var(--m-color) !important;
    flex: none !important;
    height: auto !important;
    overflow: visible !important;
  }
  .expandable-card-header-row {
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    width: 100% !important;
    gap: 8px !important;
  }
  .expandable-card-header {
    flex: 1 1 auto !important;
    display: flex !important;
    align-items: center !important;
    gap: 6px !important;
    min-width: 0 !important;
    font-size: 1.02rem !important;
    line-height: 1.2 !important;
  }
  .expandable-card-emoji {
    font-size: 1.2rem !important;
  }
  .expand-btn {
    flex: 0 0 54px !important;
    text-align: right !important;
    margin-top: 0 !important;
    font-size: 0.9rem !important;
    align-self: center !important;
    padding: 1px 5px !important;
    line-height: 1 !important;
    color: var(--brand-color) !important;
  }
  .module-status {
    flex: 0 0 82px !important;
    text-align: center !important;
    font-size: 0.65rem !important;
    padding: 2px 4px !important;
    line-height: 1.1 !important;
    white-space: nowrap !important;
  }
}

  /* Common details layout for mobile concepts */
  .concept-details-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .concept-tagline {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
    display: block;
    line-height: 1.4;
  }
  .concept-features {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 8px;
  }
  .concept-feature-item {
    display: flex;
    gap: 12px;
    align-items: start;
  }
  .concept-feature-icon {
    font-size: 1rem;
    line-height: 1.4;
    flex-shrink: 0;
  }
  .concept-feature-text {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.45;
    margin: 0;
  }
  .concept-feature-text strong {
    color: var(--text-primary);
    font-weight: 600;
  }
  .concept-mockup-pane {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    margin-top: 4px;
    overflow-x: auto;
  }
  .concept-mockup-pane > * {
    max-width: 100%;
  }

  /* Concept 3: Expandable Cards */
  .expandable-cards-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 16px;
    width: 100%;
  }

  .expandable-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-top: 4px solid var(--m-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-sizing: border-box;
    box-shadow: 0 4px 12px -5px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 10px;
    text-align: left;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .expandable-card-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
  }

  .expandable-card-emoji {
    font-size: 1.2rem;
  }

  .expandable-card-tagline {
    font-size: 0.95rem;
    color: var(--text-secondary);
    font-style: italic;
    line-height: 1.4;
  }

  .expandable-card-body {
    height: 0;
    overflow: hidden;
    transition: none !important;
  }

  .expandable-card.open .expandable-card-body {
    margin-top: 8px;
    padding-top: 16px;
    border-top: 1px solid var(--border);
  }

  .expand-btn {
    background: none;
    border: none;
    color: var(--brand-color);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-block;
    padding: 0;
    margin-top: 6px;
    font-family: var(--font-heading);
    transition: opacity 0.2s ease;
    text-decoration: underline;
    white-space: nowrap;
    align-self: flex-start;
    text-align: left;
  }

  .required-tag {
    color: var(--brand-color) !important;
  }
}

@media (max-width: 768px) {
  :root.light-mode {
    --text-primary: #000000;
    --text-secondary: #000000;
  }
  .hero__subtitle {
    font-size: 1.1rem !important;
    line-height: 1.45 !important;
  }
  .nav__logo {
    display: none !important;
  }
  .nav__logo-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 1 auto;
    min-width: 0;
  }
  .nav__promo-text {
    display: inline-block !important;
    font-size: 0.75rem !important;
    max-width: 180px;
    line-height: 1.25;
    margin: 0;
    text-align: center !important;
  }
  .nav__promo-text-desktop {
    display: none !important;
  }
  .nav__promo-text-mobile {
    display: inline !important;
  }
  .nav__inner {
    flex-wrap: nowrap !important;
    justify-content: center !important;
    gap: var(--space-sm) !important;
    min-height: 48px !important;
    padding: 0 12px !important;
  }
  .hero {
    height: 100vh !important;
    min-height: 520px !important;
    display: flex !important;
    flex-direction: column !important;
    justify-content: center !important;
    padding-top: 118px !important;
    padding-bottom: 24px !important;
    box-sizing: border-box !important;
  }
  .hero__title {
    font-size: 2.25rem;
  }
  .hero__actions {
    flex-direction: column;
    width: 100%;
  }
  .hero__actions .btn {
    width: 100%;
  }
  .hero__mockup {
    transform: none !important;
  }
  .mockup-grid {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .mockup-sidebar {
    display: flex !important;
    flex-direction: row !important;
    overflow-x: auto !important;
    gap: 8px !important;
    padding: 0 0 12px 0 !important;
    border-right: none !important;
    border-bottom: 1px solid var(--border) !important;
    margin-bottom: 12px !important;
    -ms-overflow-style: none;
    scrollbar-width: none;
    -webkit-mask-image: linear-gradient(to right, transparent, black 12px, black calc(100% - 12px), transparent);
    mask-image: linear-gradient(to right, transparent, black 12px, black calc(100% - 12px), transparent);
  }
  .mockup-sidebar::-webkit-scrollbar {
    display: none;
  }
  .mockup-nav-item {
    white-space: nowrap !important;
    padding: 6px 12px !important;
  }
  .mockup-nav-item.active {
    border-left: none !important;
    border-bottom: 2px solid var(--brand-color) !important;
    border-radius: 0 !important;
  }
  .ecosystem-grid {
    grid-template-columns: 1fr;
  }
  .ecosystem-content {
    padding: 24px;
  }
}

/* --- Waitlist CTA Section Desktop Background Video & Overlay --- */
@media (min-width: 769px) {
  .waitlist-section {
    position: relative;
    overflow: hidden;
    background: none;
    padding: 0;
    width: 100%;
    aspect-ratio: 16 / 9;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .waitlist-video-container {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
  }

  .waitlist-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: none;
  }

  .waitlist-video--dark {
    display: block;
  }

  :root.light-mode .waitlist-video--dark {
    display: none;
  }

  :root.light-mode .waitlist-video--light {
    display: block;
  }

  .waitlist-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 2;
    background: linear-gradient(rgba(8, 8, 12, 0.5), rgba(8, 8, 12, 0.5));
    transition: background var(--transition-base);
  }

  :root.light-mode .waitlist-video-overlay {
    background: linear-gradient(rgba(248, 250, 252, 0.5), rgba(248, 250, 252, 0.5));
  }

  .waitlist-section .container {
    position: relative;
    z-index: 3;
    width: 100%;
  }

  .waitlist-card {
    background: rgba(15, 15, 21, 0.04875) !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.09) !important;
    box-shadow: 0 25px 60px -10px rgba(0, 0, 0, 0.85) !important;
  }

  :root.light-mode .waitlist-card {
    background: rgba(255, 255, 255, 0.04875) !important;
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid rgba(255, 255, 255, 0.4) !important;
    box-shadow: 0 25px 60px -10px rgba(15, 23, 42, 0.3) !important;
  }

  .grand-vision.section {
    padding-top: var(--space-md) !important;
    padding-bottom: var(--space-xl) !important;
  }
}

.shimmer-text {
  background: linear-gradient(120deg, var(--brand-color), #a78bfa, #f472b6, #a78bfa, var(--brand-color)) !important;
  background-size: 200% auto !important;
  -webkit-background-clip: text !important;
  -webkit-text-fill-color: transparent !important;
  background-clip: text !important;
  animation: pulseShimmerDark 2.5s ease-in-out infinite !important;
}

.light-mode .shimmer-text {
  animation: pulseShimmerLight 3s ease-in-out infinite !important;
}

@keyframes pulseShimmerDark {
  0% {
    background-position: 0% center;
    filter: brightness(1) saturate(1);
    text-shadow: 0 0 0px rgba(167, 139, 250, 0);
  }
  50% {
    background-position: 100% center;
    filter: brightness(1.5) saturate(1.5);
    text-shadow: 0 0 20px rgba(167, 139, 250, 0.8), 0 0 8px rgba(244, 114, 182, 0.5);
  }
  100% {
    background-position: 200% center;
    filter: brightness(1) saturate(1);
    text-shadow: 0 0 0px rgba(167, 139, 250, 0);
  }
}

@keyframes pulseShimmerLight {
  0% {
    background-position: 0% center;
    filter: brightness(1) saturate(1);
  }
  50% {
    background-position: 100% center;
    filter: brightness(1.3) saturate(1.3);
  }
  100% {
    background-position: 200% center;
    filter: brightness(1) saturate(1);
  }
}