/* ==========================================================================
   SURVOL LANDING PAGE STYLES
   Light "Ciel" theme — warm beige base with sky blue accents
   ========================================================================== */

/* --------------------------------------------------------------------------
   CSS Variables — Edit these to change the entire color scheme
   -------------------------------------------------------------------------- */
:root {
  /* Colors - Ciel (Light) Theme */
  --color-background: #FDF2E4;
  --color-surface: #FEFBF6;
  --color-surface-elevated: #F6E6D7;
  --color-surface-subtle: #EFD9C6;
  --color-border: #E1CDBB;
  --color-border-hover: #D1BDA9;

  --color-text-primary: #2C241C;
  --color-text-secondary: #675C50;
  --color-text-tertiary: #968675;
  --color-text-on-primary: #FFFFFF;

  --color-primary: #77A6B1;
  --color-primary-hover: #5D8A94;
  --color-primary-light: #A8D1DB;
  --color-primary-glow: rgba(119, 166, 177, 0.25);

  --color-accent: #C7936E;
  --color-accent-soft: rgba(199, 147, 110, 0.15);
  --color-secondary: #E1B48C;

  --color-success: #80B79D;
  --color-warning: #F1BD72;
  --color-error: #D88D7C;

  /* Gradients */
  --gradient-background: linear-gradient(180deg, #FDF2E4 0%, #F3DFC9 45%, #E8F1F3 100%);
  --gradient-primary: linear-gradient(135deg, #77A6B1 0%, #A8D1DB 100%);
  --gradient-warm: linear-gradient(135deg, #E1B48C 0%, #F1D9C1 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.6) 0%, rgba(255,255,255,0.3) 100%);
  --gradient-frost: linear-gradient(135deg, rgba(255,255,255,0.9) 0%, rgba(253,252,251,0.7) 100%);

  /* Typography */
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  
  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  
  /* Effects */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

img {
  max-width: 100%;
  height: auto;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section-header {
  text-align: center;
  max-width: var(--container-narrow);
  margin: 0 auto var(--space-3xl);
}

.section-eyebrow {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-md);
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.section-title em {
  font-style: italic;
  color: var(--color-primary);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* --------------------------------------------------------------------------
   Navigation
   -------------------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-lg) 0;
  background: linear-gradient(to bottom, rgba(253, 242, 228, 0.95), rgba(253, 242, 228, 0));
  backdrop-filter: blur(8px);
  transition: background var(--transition-base);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  font-size: 1.25rem;
}

.logo-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-cta {
  background: var(--color-primary);
  color: var(--color-text-on-primary) !important;
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-full);
  font-weight: 600;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.nav-cta:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-text-on-primary);
  box-shadow: 0 4px 20px var(--color-primary-glow);
}

.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 30px var(--color-primary-glow);
}

.btn-secondary {
  background: var(--color-surface-elevated);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

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

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: var(--space-4xl);
  padding: var(--space-4xl) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background: var(--gradient-background);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(119, 166, 177, 0.15) 1px, transparent 1px),
    linear-gradient(90deg, rgba(119, 166, 177, 0.15) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  opacity: 0.6;
}

.hero-content {
  max-width: 600px;
  margin-left: auto;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary);
  background: var(--color-primary-glow);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-lg);
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 400;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
}

.hero-title-accent {
  font-style: italic;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

/* Phone Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.phone-mockup {
  width: 280px;
  height: 580px;
  background: var(--color-surface);
  border-radius: 40px;
  padding: 12px;
  box-shadow:
    0 0 0 1px var(--color-border),
    0 25px 50px -12px rgba(140, 125, 109, 0.2),
    0 0 60px var(--color-primary-glow);
  position: relative;
  transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
  transition: transform var(--transition-slow);
}

.phone-mockup:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, #E8F1F3 0%, #FDF8F3 100%);
  border-radius: 32px;
  overflow: hidden;
  position: relative;
}

.mockup-map {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, transparent 60%, var(--color-surface) 100%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 20px,
      rgba(119, 166, 177, 0.15) 20px,
      rgba(119, 166, 177, 0.15) 21px
    ),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 20px,
      rgba(119, 166, 177, 0.15) 20px,
      rgba(119, 166, 177, 0.15) 21px
    );
}

.mockup-card {
  position: absolute;
  bottom: 20px;
  left: 16px;
  right: 16px;
  background: var(--gradient-frost);
  backdrop-filter: blur(20px);
  border-radius: 16px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.mockup-card-theme {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.mockup-card-title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  margin-bottom: 8px;
  color: var(--color-text-primary);
}

.mockup-card-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Features Section
   -------------------------------------------------------------------------- */
.features {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.feature-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
}

.feature-card:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px -20px rgba(140, 125, 109, 0.15);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-glow);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  margin-bottom: var(--space-lg);
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.feature-description {
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   How It Works Section
   -------------------------------------------------------------------------- */
.how-it-works {
  padding: var(--space-4xl) 0;
}

.steps {
  max-width: 700px;
  margin: 0 auto;
}

.step {
  display: flex;
  gap: var(--space-2xl);
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.step:last-child {
  border-bottom: none;
}

.step-number {
  font-family: var(--font-serif);
  font-size: 3rem;
  font-weight: 400;
  color: var(--color-primary);
  line-height: 1;
  opacity: 0.5;
  min-width: 80px;
}

.step-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.step-description {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   Themes Section
   -------------------------------------------------------------------------- */
.themes {
  padding: var(--space-4xl) 0;
  background: var(--color-surface);
}

.themes-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-md);
  max-width: 800px;
  margin: 0 auto;
}

.theme-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  transition: all var(--transition-fast);
}

.theme-tag:hover {
  border-color: var(--color-primary);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Waitlist Section
   -------------------------------------------------------------------------- */
.waitlist {
  padding: var(--space-4xl) 0;
}

.waitlist-card {
  background: var(--gradient-frost);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4xl);
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px -10px rgba(140, 125, 109, 0.1);
}

.waitlist-content {
  position: relative;
  z-index: 1;
  max-width: 500px;
}

.waitlist-title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 400;
  margin-bottom: var(--space-md);
}

.waitlist-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2xl);
  line-height: 1.7;
}

.waitlist-form {
  margin-bottom: var(--space-lg);
}

.form-group {
  display: flex;
  gap: var(--space-sm);
}

.form-group input {
  flex: 1;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-text-primary);
  outline: none;
  transition: border-color var(--transition-fast);
}

.form-group input::placeholder {
  color: var(--color-text-tertiary);
}

.form-group input:focus {
  border-color: var(--color-primary);
}

.form-group .btn {
  flex-shrink: 0;
}

.form-hint {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
  margin-top: var(--space-sm);
}

/* Loading state */
.btn-loading {
  display: none;
}

.btn.loading .btn-text {
  display: none;
}

.btn.loading .btn-loading {
  display: block;
}

.spinner {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Success state */
.waitlist-success {
  display: none;
  text-align: center;
  padding: var(--space-2xl);
}

.waitlist-success.show {
  display: block;
}

.waitlist-form.hidden {
  display: none;
}

.success-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-success);
  color: var(--color-text-on-primary);
  font-size: 2rem;
  font-weight: bold;
  border-radius: 50%;
  margin: 0 auto var(--space-lg);
}

.waitlist-success h3 {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
}

.waitlist-success p {
  color: var(--color-text-secondary);
}

/* Decoration */
.waitlist-decoration {
  position: absolute;
  right: -100px;
  top: 50%;
  transform: translateY(-50%);
}

.decoration-circle {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--color-border);
}

.decoration-circle:nth-child(1) {
  width: 300px;
  height: 300px;
  right: 0;
  top: -150px;
}

.decoration-circle:nth-child(2) {
  width: 400px;
  height: 400px;
  right: -50px;
  top: -200px;
  border-color: var(--color-primary-light);
}

.decoration-circle:nth-child(3) {
  width: 500px;
  height: 500px;
  right: -100px;
  top: -250px;
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  padding: var(--space-3xl) 0;
  border-top: 1px solid var(--color-border);
}

.footer-content {
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.footer-tagline {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.footer-links a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

.footer-divider {
  color: var(--color-text-tertiary);
}

.footer-copyright {
  font-size: 0.875rem;
  color: var(--color-text-tertiary);
}

/* --------------------------------------------------------------------------
   Responsive Design
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links a:not(.nav-cta) {
    display: none;
  }
  
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: 120px;
    min-height: auto;
  }
  
  .hero-content {
    margin: 0 auto;
  }
  
  .hero-cta {
    justify-content: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .phone-mockup {
    width: 240px;
    height: 500px;
    transform: none;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .step {
    flex-direction: column;
    gap: var(--space-md);
  }
  
  .step-number {
    font-size: 2rem;
  }
  
  .form-group {
    flex-direction: column;
  }
  
  .waitlist-card {
    padding: var(--space-2xl);
  }
  
  .waitlist-decoration {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Animations
   -------------------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content > * {
  animation: fadeInUp 0.8s ease-out backwards;
}

.hero-eyebrow { animation-delay: 0.1s; }
.hero-title { animation-delay: 0.2s; }
.hero-subtitle { animation-delay: 0.3s; }
.hero-cta { animation-delay: 0.4s; }

.hero-visual {
  animation: fadeInUp 1s ease-out 0.5s backwards;
}

/* --------------------------------------------------------------------------
   Legal Pages (Privacy, Terms)
   -------------------------------------------------------------------------- */
.legal-content {
  padding: 8rem 0 4rem;
  min-height: 100vh;
}

.legal-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 0.5rem;
}

.legal-date {
  color: var(--color-text-tertiary);
  margin-bottom: 3rem;
}

.legal-content section {
  margin-bottom: 2.5rem;
}

.legal-content h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
}

.legal-content p {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 0.75rem;
}

.legal-content ul {
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 0.75rem;
  padding-left: 1.5rem;
}

.legal-content li {
  margin-bottom: 0.5rem;
}

.legal-content a {
  color: var(--color-primary);
}

.legal-content a:hover {
  text-decoration: underline;
}

/* --------------------------------------------------------------------------
   Store Badges (hidden until app launch)
   -------------------------------------------------------------------------- */
.store-badges {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.store-badge {
  display: inline-block;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.store-badge:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.store-badge img {
  height: 50px;
  width: auto;
}