/* Landing Page Styles - Stone & Clay Theme */

/* ============================================================================
   BASE STYLES
   ============================================================================ */

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

body {
  font-family: var(--font-readable);
  color: var(--text-primary);
  background-color: var(--bg-app);
  line-height: var(--leading-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  
  /* Dotted notebook background pattern - subtle and elegant */
  background-image: radial-gradient(circle, var(--stone-4) 1px, transparent 1px);
  background-size: 24px 24px;
  background-attachment: fixed;
}

/* ============================================================================
   THEME TOGGLE
   ============================================================================ */

.theme-toggle {
  position: fixed;
  top: var(--space-4);
  right: var(--space-4);
  z-index: var(--z-sticky);
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.theme-toggle:hover {
  background-color: var(--bg-hover);
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.theme-toggle:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

.theme-icon {
  width: 20px;
  height: 20px;
  color: var(--text-primary);
}

.theme-icon-light {
  display: block;
}

.theme-icon-dark {
  display: none;
}

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

[data-theme="dark"] .theme-icon-dark {
  display: block;
}

/* ============================================================================
   BUTTONS
   ============================================================================ */

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  font-family: var(--font-accent);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
  text-align: center;
  min-height: 44px;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

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

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-default);
  font-family: var(--font-readable);
}

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

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.google-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

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

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-8) var(--space-4);
  text-align: center;
  position: relative;
  background-color: transparent;
}

.hero-content {
  max-width: 800px;
  width: 100%;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
  color: var(--text-primary);
}

.hero-subtitle {
  font-family: var(--font-readable);
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
  color: var(--text-secondary);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
}

.logged-in-cta {
  margin-top: var(--space-4);
}

/* ============================================================================
   FEATURES SECTION
   ============================================================================ */

.features {
  padding: var(--space-16) var(--space-4);
  background-color: transparent;
}

.features-container {
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  text-align: center;
  margin-bottom: var(--space-3);
  color: var(--text-primary);
  font-weight: var(--font-bold);
}

.section-subtitle {
  font-family: var(--font-readable);
  font-size: var(--text-lg);
  text-align: center;
  color: var(--text-secondary);
  margin-bottom: var(--space-12);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.feature-card {
  background-color: var(--bg-surface);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--border-default);
}

.feature-icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-4);
  color: var(--accent-primary);
}

.feature-icon svg {
  width: 100%;
  height: 100%;
}

.feature-title {
  font-family: var(--font-accent);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

.feature-description {
  font-family: var(--font-readable);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ============================================================================
   HOW IT WORKS SECTION
   ============================================================================ */

.how-it-works {
  padding: var(--space-16) var(--space-4);
  background-color: var(--bg-secondary);
}

.how-it-works-container {
  max-width: 1200px;
  margin: 0 auto;
}

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.step-card {
  background-color: var(--bg-surface);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
  position: relative;
}

.step-number {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-accent);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  margin-bottom: var(--space-4);
}

.step-title {
  font-family: var(--font-accent);
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
  color: var(--text-primary);
  font-weight: var(--font-medium);
}

.step-description {
  font-family: var(--font-readable);
  font-size: var(--text-base);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
}

/* ============================================================================
   TESTIMONIALS SECTION
   ============================================================================ */

.testimonials {
  padding: var(--space-16) var(--space-4);
  background-color: transparent;
}

.testimonials-container {
  max-width: 1200px;
  margin: 0 auto;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  margin-top: var(--space-8);
}

.testimonial-card {
  background-color: var(--bg-surface);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-sm);
}

.testimonial-text {
  font-family: var(--font-readable);
  font-size: var(--text-base);
  color: var(--text-primary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
  font-style: italic;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.testimonial-author strong {
  font-family: var(--font-readable);
  font-size: var(--text-base);
  color: var(--text-primary);
  font-weight: var(--font-semibold);
}

.testimonial-author span {
  font-family: var(--font-readable);
  font-size: var(--text-sm);
  color: var(--text-secondary);
}

/* ============================================================================
   FINAL CTA SECTION
   ============================================================================ */

.final-cta {
  padding: var(--space-16) var(--space-4);
  background-color: var(--accent-primary);
  color: var(--text-inverse);
  text-align: center;
}

.final-cta-container {
  max-width: 800px;
  margin: 0 auto;
}

.final-cta-title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  margin-bottom: var(--space-3);
  font-weight: var(--font-bold);
  color: var(--text-inverse);
}

.final-cta-subtitle {
  font-family: var(--font-readable);
  font-size: var(--text-lg);
  margin-bottom: var(--space-8);
  line-height: var(--leading-relaxed);
  color: var(--text-inverse);
  opacity: 0.95;
}

.final-cta .btn-primary {
  background-color: var(--stone-1);
  color: var(--accent-primary);
}

.final-cta .btn-primary:hover {
  background-color: var(--stone-2);
  transform: translateY(-2px);
}

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

.footer {
  padding: var(--space-8) var(--space-4);
  background-color: var(--stone-12);
  color: var(--text-inverse);
  text-align: center;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-container p {
  font-family: var(--font-readable);
  font-size: var(--text-sm);
  color: var(--text-inverse);
  opacity: 0.8;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.footer-nav a {
  font-family: var(--font-readable);
  font-size: var(--text-sm);
  color: var(--text-inverse);
  opacity: 0.8;
  transition: opacity var(--transition-base);
  text-decoration: none;
}

.footer-nav a:hover {
  opacity: 1;
}

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

/* Tablet (>= 768px) */
@media (min-width: 768px) {
  .hero-title {
    font-size: 48px;
  }
  
  .hero-subtitle {
    font-size: var(--text-xl);
  }
  
  .cta-buttons {
    flex-direction: row;
    justify-content: center;
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-nav {
    flex-direction: row;
    justify-content: center;
  }
}

/* Desktop (>= 1024px) */
@media (min-width: 1024px) {
  .hero-title {
    font-size: 56px;
  }
  
  .hero-subtitle {
    font-size: 22px;
  }
  
  .section-title {
    font-size: 42px;
  }
  
  .section-subtitle {
    font-size: var(--text-xl);
  }
  
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .steps-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .final-cta-title {
    font-size: 48px;
  }
  
  .final-cta-subtitle {
    font-size: var(--text-xl);
  }
}

/* ============================================================================
   ACCESSIBILITY
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

a:focus,
button:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 2px;
}

/* ============================================================================
   PRINT STYLES
   ============================================================================ */

@media print {
  .theme-toggle {
    display: none;
  }
  
  .final-cta {
    background: white;
    color: black;
  }
  
  .btn-primary,
  .btn-secondary {
    border: 1px solid black;
  }
}