/* VIA Website - Main Stylesheet */

/* ========================================
   CSS RESET & BASE
   ======================================== */

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

/* ========================================
   CSS VARIABLES
   ======================================== */

:root {
  /* Colors - Light Mode */
  --color-bg-light: #FAFAFA;
  --color-bg-dark: #0a0a0a;
  --color-text-light: #1a1a1a;
  --color-text-dark: #ffffff;
  --color-border: #C85A54;
  --color-gray-light: #e5e5e5;
  --color-gray-dark: #404040;
  --color-accent-light: #f3f3f3;
  --color-accent-dark: #1a1a1a;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  
  /* Typography */
  --font-mono: 'Courier New', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  
  /* Container Widths */
  --container-narrow: 48rem;
  --container-wide: 64rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.6s ease;
}

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

html {
  font-family: var(--font-mono);
  scroll-behavior: smooth;
  font-size: 16px;
}

html.dark {
  color-scheme: dark;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow-x: hidden;
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

html.dark body {
  background-color: var(--color-bg-dark);
  color: var(--color-text-dark);
}

/* ========================================
   HEADER & LOGO
   ======================================== */

header {
  position: absolute;
  top: var(--spacing-md);
  left: var(--spacing-md);
  z-index: 50;
}

.logo {
  display: block;
  height: 80px;
  width: 80px;
  object-fit: contain;
  animation: fadeInDown var(--transition-slow) ease forwards;
  transition: transform var(--transition-fast);
}

.logo:hover {
  transform: scale(1.05);
}

.logo img {
  height: 100%;
  width: 100%;
  object-fit: contain;
}

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

.theme-toggle {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  z-index: 50;
  padding: var(--spacing-xs);
  background: none;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  transition: background-color var(--transition-normal);
}

body .theme-toggle {
  color: #4b5563;
}

html.dark .theme-toggle {
  color: #9ca3af;
}

.theme-toggle:hover {
  background-color: rgba(0, 0, 0, 0.1);
}

html.dark .theme-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.theme-toggle:hover {
  color: var(--color-text-light);
}

html.dark .theme-toggle:hover {
  color: var(--color-text-dark);
}

.sun-icon, .moon-icon {
  width: 1.25rem;
  height: 1.25rem;
  display: none;
}

html.dark .sun-icon {
  display: block;
}

body .moon-icon {
  display: block;
}

/* ========================================
   MAIN CONTENT
   ======================================== */

main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 5rem 1rem;
  width: 100%;
}

.container {
  max-width: var(--container-wide);
  width: 100%;
}

.container-narrow {
  max-width: var(--container-narrow);
}

/* ========================================
   TYPOGRAPHY
   ======================================== */

h1 {
  text-align: center;
  font-size: clamp(1.875rem, 5vw, 3rem);
  font-weight: 400;
  text-transform: uppercase;
  margin-bottom: var(--spacing-lg);
  letter-spacing: 0.05em;
  line-height: 1.2;
  font-family: var(--font-sans);
  animation: fadeInUp 0.8s ease 0.2s both;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

p {
  line-height: 1.6;
  font-size: 1rem;
}

p + p {
  margin-top: var(--spacing-sm);
}

.subtitle {
  text-align: center;
  font-size: 1rem;
  opacity: 0.7;
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease 0.3s both;
}

.section-title {
  font-size: 1.875rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--spacing-md);
  font-family: var(--font-sans);
}

/* ========================================
   CARDS
   ======================================== */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
  margin-bottom: 3rem;
  animation: fadeInUp 0.8s ease 0.4s both;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.card {
  background-color: white;
  border: 2px solid var(--color-border);
  border-radius: 1rem;
  padding: var(--spacing-md);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  min-height: 250px;
  display: flex;
  flex-direction: column;
}

html.dark .card {
  background-color: #1a1a1a;
}

.card:hover {
  transform: translateY(-1rem) scale(1.02);
  box-shadow: 0 12px 16px rgba(0, 0, 0, 0.15);
}

html.dark .card:hover {
  box-shadow: 0 12px 16px rgba(0, 0, 0, 0.3);
}

.card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.card p {
  line-height: 1.6;
  font-size: 1rem;
}

html.dark .card p {
  color: #d1d5db;
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* ========================================
   CONTENT SECTIONS
   ======================================== */

.content-section {
  background-color: white;
  border: 2px solid var(--color-border);
  border-radius: 1rem;
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.6s ease both;
}

html.dark .content-section {
  background-color: #1a1a1a;
}

.content-section h3 {
  color: var(--color-border);
  margin-bottom: var(--spacing-sm);
}

html.dark .content-section p {
  color: #d1d5db;
}

/* ========================================
   BUTTONS & CTAs
   ======================================== */

.cta-button {
  width: 100%;
  padding: 1rem 2rem;
  background-color: var(--color-border);
  color: white;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color var(--transition-normal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-sans);
}

.cta-button:hover {
  background-color: #a84840;
}

.cta-button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   FORMS
   ======================================== */

form {
  max-width: 400px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--spacing-sm);
}

label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--color-border);
  border-radius: 0.5rem;
  font-family: var(--font-mono);
  font-size: 1rem;
  background-color: white;
  color: #1a1a1a;
  transition: border-color var(--transition-fast);
}

html.dark input[type="text"],
html.dark input[type="email"],
html.dark textarea {
  background-color: #1a1a1a;
  color: white;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  outline: none;
  border-color: #a84840;
}

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

.bottom-nav {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  margin-top: var(--spacing-lg);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.bottom-nav {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.bottom-nav-link {
  text-decoration: none;
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.875rem;
  line-height: 1;
  color: inherit;
  background: transparent;
  transition: 
    background-color 0.2s ease,
    color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

/* Hover / focus */
.bottom-nav-link:hover,
.bottom-nav-link:focus {
  background-color: rgba(200, 90, 84, 0.12);
  box-shadow: 0 0 6px rgba(200, 90, 84, 0.4);
  transform: translateY(-1px);
  text-decoration: none;
}

/* Active page (optional but recommended) */
.bottom-nav-link.active {
  background-color: var(--color-border);
  color: white;
}

/* Dark mode tweak if needed */
html.dark .bottom-nav-link {
  border-color: var(--color-border);
}

.bottom-nav-link {
  font-size: 0.875rem;
  text-decoration: none;
  color: var(--color-text-light);
  padding: var(--spacing-xs) var(--spacing-sm);
  border: 1px solid var(--color-gray-light);
  border-radius: 4px;
  transition: all var(--transition-normal);
}

html.dark .bottom-nav-link {
  color: var(--color-text-dark);
  border-color: var(--color-gray-dark);
}

.bottom-nav-link:hover {
  background-color: var(--color-border);
  color: white;
  border-color: var(--color-border);
}

/* ========================================
   SPECIAL LINKS
   ======================================== */

.what-is-link {
  display: block;
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-sans);
  color: var(--color-border);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.25rem;
  transition: color var(--transition-normal);
  animation: fadeInUp 0.8s ease 0.5s both;
  margin-top: var(--spacing-md);
  cursor: pointer;
}

.what-is-link:hover {
  color: #a84840;
  opacity: 0.8;
}

html.dark .what-is-link:hover {
  color: #ff6b5b;
}

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

.footer-left,
.footer-right {
  position: fixed;
  bottom: var(--spacing-md);
  font-size: 0.875rem;
  z-index: 40;
  animation: fadeIn 1s ease 1s both;
}

.footer-left {
  left: var(--spacing-md);
}

.footer-right {
  right: var(--spacing-md);
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
}

.social-link {
  color: inherit;
  text-decoration: none;
  opacity: 0.6;
  transition: opacity var(--transition-normal);
}

.social-link:hover {
  opacity: 1;
}

.social-icon {
  width: 1.25rem;
  height: 1.25rem;
}

/* ========================================
   FAQ SECTIONS
   ======================================== */

.faq-section {
  margin-bottom: var(--spacing-lg);
}

.faq-category {
  margin-bottom: var(--spacing-md);
}

.faq-category h3 {
  color: var(--color-border);
  margin-bottom: var(--spacing-sm);
}

.faq-item {
  background-color: white;
  border: 1px solid var(--color-gray-light);
  border-radius: 0.5rem;
  padding: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

html.dark .faq-item {
  background-color: #1a1a1a;
  border-color: var(--color-gray-dark);
}

.faq-question {
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.faq-answer {
  opacity: 0.8;
  line-height: 1.6;
}

/* ========================================
   VIDEO CONTAINER
   ======================================== */

.video-container {
  padding: 56.25% 0 0 0;
  position: relative;
  margin-bottom: var(--spacing-md);
  border-radius: 1rem;
  overflow: hidden;
}

.video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

#audio-toggle {
  position: absolute;
  bottom: 15px;
  right: 15px;
  z-index: 10;
  background-color: rgba(0, 0, 0, 0.6);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color var(--transition-fast);
}

#audio-toggle:hover {
  background-color: rgba(0, 0, 0, 0.8);
}

/* ========================================
   ANIMATIONS
   ======================================== */

@keyframes fadeInDown {
  from {
    opacity: 0;
    transform: translateX(-20px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

@media (max-width: 640px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  header {
    top: var(--spacing-sm);
    left: var(--spacing-sm);
  }

  .theme-toggle {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }

  main {
    padding: 5rem 1rem 2rem;
  }

  .footer-left,
  .footer-right {
    font-size: 0.75rem;
    bottom: var(--spacing-sm);
  }

  .footer-left {
    left: var(--spacing-sm);
  }

  .footer-right {
    right: var(--spacing-sm);
  }

  .logo {
    height: 40px;
    width: 40px;
  }
  
  h1 {
    margin-bottom: var(--spacing-md);
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

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

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }

.hidden {
  display: none;
}

.visible {
  display: block;
}