/* Whispus Global Styles */

:root {
  /* Brand Colors */
  --color-cyan: #66CCFF;
  --color-blue: #3366FF;
  --color-dark: #0D1426;
  --color-dark-lighter: #1a2438;
  --color-dark-card: #151d2e;

  /* State Colors */
  --color-recording: #FF3B30;
  --color-processing: #FF9500;
  --color-success: #34C759;

  /* Text Colors */
  --color-text: #FFFFFF;
  --color-text-secondary: rgba(255, 255, 255, 0.7);
  --color-text-muted: rgba(255, 255, 255, 0.6); /* WCAG AA compliant */

  /* Effects */
  --glow-cyan: 0 0 20px rgba(102, 204, 255, 0.4);
  --glow-blue: 0 0 30px rgba(51, 102, 255, 0.3);

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-blue) 100%);
  --gradient-bg: linear-gradient(180deg, var(--color-dark) 0%, #0a0f1a 100%);

  /* 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;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--gradient-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
}

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

a {
  color: var(--color-cyan);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text);
}

/* Utility Classes */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.glow {
  box-shadow: var(--glow-cyan);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 44px; /* Apple minimum touch target */
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-dark);
}

.btn-primary:hover {
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

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

/* Cards */
.card {
  background: var(--color-dark-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: rgba(102, 204, 255, 0.3);
  box-shadow: var(--glow-cyan);
}

/* Glassmorphism */
.glass {
  background: rgba(13, 20, 38, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Sections */
section {
  padding: var(--space-3xl) 0;
}

/* Focus States for Accessibility */
:focus-visible {
  outline: 2px solid var(--color-cyan);
  outline-offset: 2px;
}

/* Selection */
::selection {
  background: var(--color-cyan);
  color: var(--color-dark);
}

/* Common Grid Layouts */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
}

.grid-auto-lg {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

/* Badge/Pill Component */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-md);
  background: rgba(102, 204, 255, 0.1);
  border: 1px solid rgba(102, 204, 255, 0.3);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-cyan);
}

/* Trust Item (reused in Hero, Download) */
.trust-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.trust-item svg {
  color: var(--color-success);
}

/* Icon Box (feature icons, use case icons) */
.icon-box {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(102, 204, 255, 0.1);
  border-radius: var(--radius-lg);
  color: var(--color-cyan);
}

.icon-box-lg {
  width: 56px;
  height: 56px;
}

/* Tag List (small tags/chips) */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  list-style: none;
}

.tag-list li,
.tag {
  font-size: 0.75rem;
  padding: var(--space-xs) var(--space-sm);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

/* Feature List with Check Icons */
.check-list {
  list-style: none;
}

.check-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.check-list svg {
  color: var(--color-success);
  flex-shrink: 0;
}

/* Centered Content Block */
.content-center {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--color-dark-lighter);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-cyan);
}

/* Skip Link (Accessibility) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-cyan);
  color: var(--color-dark);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius-md);
  font-weight: 600;
  z-index: 9999;
  transition: top var(--transition-base);
}

.skip-link:focus {
  top: var(--space-md);
}

/* Responsive Breakpoints */

/* Tablet (1024px) */
@media (max-width: 1024px) {
  .container {
    padding: 0 var(--space-md);
  }

  section {
    padding: var(--space-2xl) 0;
  }

  .grid-auto {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
  }

  .grid-auto-lg {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-lg);
  }
}

/* Small Mobile (480px) */
@media (max-width: 480px) {
  html {
    font-size: 15px;
  }

  .container {
    padding: 0 var(--space-sm);
  }

  section {
    padding: var(--space-xl) 0;
  }

  .btn {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.9rem;
    width: 100%;
  }

  .grid-auto,
  .grid-auto-lg {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .card {
    padding: var(--space-lg);
  }

  .badge {
    font-size: 0.7rem;
    padding: var(--space-xs) var(--space-sm);
  }

  .icon-box {
    width: 40px;
    height: 40px;
  }

  .icon-box-lg {
    width: 48px;
    height: 48px;
  }
}