/**
 * VideoWeigh Design System - Shared Styles
 *
 * Based on the app's theme.ts constants
 * Use this stylesheet for web pages that need to match the app's design
 */

/* ============================================
   CSS Custom Properties (Design Tokens)
   ============================================ */

:root {
  /* Colors - Light Theme */
  --color-primary: #0066CC;
  --color-primary-dark: #003366;
  --color-accent: #FF6B4A;
  --color-success: #34C759;
  --color-warning: #FF9500;
  --color-error: #FF3B30;
  --color-link: #007AFF;

  /* Text Colors */
  --color-text: rgba(0, 0, 0, 0.9);
  --color-text-secondary: rgba(0, 0, 0, 0.6);
  --color-text-white: #FFFFFF;
  --color-text-white-muted: rgba(255, 255, 255, 0.8);

  /* Background Colors */
  --color-bg-root: #FFFFFF;
  --color-bg-default: #F2F2F7;
  --color-bg-secondary: #EDF1F7;
  --color-bg-tertiary: #E5E5EA;

  /* Glass Effects */
  --color-glass-bg: rgba(255, 255, 255, 0.95);
  --color-glass-border: rgba(0, 0, 0, 0.04);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 12px;
  --spacing-lg: 16px;
  --spacing-xl: 20px;
  --spacing-2xl: 24px;
  --spacing-3xl: 32px;
  --spacing-4xl: 40px;
  --spacing-5xl: 48px;

  /* Sizes */
  --input-height: 48px;
  --button-height: 52px;

  /* Border Radius */
  --radius-xs: 8px;
  --radius-sm: 12px;
  --radius-md: 16px;
  --radius-lg: 20px;
  --radius-xl: 24px;
  --radius-2xl: 32px;
  --radius-full: 9999px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-h1: 32px;
  --font-size-h2: 28px;
  --font-size-h3: 24px;
  --font-size-h4: 20px;
  --font-size-body: 16px;
  --font-size-small: 14px;
  --font-size-caption: 12px;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Shadows */
  --shadow-small: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-medium: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-large: 0 4px 16px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
}

/* Dark Theme Variables */
@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #0A84FF;
    --color-success: #30D158;
    --color-warning: #FF9F0A;
    --color-error: #FF453A;
    --color-link: #0A84FF;

    --color-text: rgba(255, 255, 255, 0.9);
    --color-text-secondary: rgba(235, 235, 245, 0.6);

    --color-bg-root: #000000;
    --color-bg-default: #1C1C1E;
    --color-bg-secondary: #2C2C2E;
    --color-bg-tertiary: #3A3A3C;

    --color-glass-bg: rgba(28, 28, 30, 0.95);
    --color-glass-border: rgba(255, 255, 255, 0.08);
  }
}

/* ============================================
   Base Styles
   ============================================ */

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
  color: var(--color-text);
  background-color: var(--color-bg-root);
  line-height: 1.5;
}

/* ============================================
   Typography
   ============================================ */

h1, .h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

h2, .h2 {
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

h3, .h3 {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
}

h4, .h4 {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  line-height: 1.3;
}

.text-body {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-regular);
}

.text-small {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-regular);
}

.text-caption {
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-regular);
}

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

.text-white {
  color: var(--color-text-white);
}

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

/* ============================================
   Layout Components
   ============================================ */

/* Gradient Background (Ocean Blue) */
.gradient-bg {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  min-height: 100vh;
}

/* Glass Container */
.glass-container {
  background: var(--color-glass-bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-glass-border);
  box-shadow: var(--shadow-large);
  overflow: hidden;
}

/* Card */
.card {
  background: var(--color-bg-default);
  border-radius: var(--radius-md);
  padding: var(--spacing-xl);
}

/* Container with max-width */
.container {
  max-width: 400px;
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-2xl);
}

/* Centered layout */
.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: var(--spacing-xl);
}

/* ============================================
   Icons
   ============================================ */

.icon-container {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-2xl);
}

.icon-container.icon-success {
  background: rgba(52, 199, 89, 0.15);
}

.icon-container.icon-primary {
  background: rgba(0, 102, 204, 0.15);
}

.icon-container.icon-warning {
  background: rgba(255, 149, 0, 0.15);
}

.icon-container.icon-error {
  background: rgba(255, 59, 48, 0.15);
}

.icon-container svg {
  width: 50px;
  height: 50px;
}

.icon-container.icon-lg {
  width: 120px;
  height: 120px;
}

.icon-container.icon-lg svg {
  width: 64px;
  height: 64px;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  width: 100%;
  height: var(--button-height);
  padding: 0 var(--spacing-2xl);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-white);
}

.btn-primary:hover {
  opacity: 0.9;
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: rgba(0, 102, 204, 0.05);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-white);
  border: 2px solid var(--color-text-white);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Link Button (text only) */
.btn-link {
  background: transparent;
  color: var(--color-primary);
  font-weight: var(--font-weight-semibold);
  height: auto;
  padding: var(--spacing-sm);
  width: auto;
}

.btn-link:hover {
  opacity: 0.7;
}

/* ============================================
   Form Elements
   ============================================ */

.input-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  background: rgba(255, 255, 255, 0.9);
  border-radius: var(--radius-sm);
  padding: 0 var(--spacing-lg);
  height: var(--input-height);
  margin-bottom: var(--spacing-md);
}

.input-container svg {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  flex-shrink: 0;
}

.input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--font-size-body);
  font-family: var(--font-family);
  color: var(--color-text);
  outline: none;
}

.input::placeholder {
  color: var(--color-text-secondary);
}

/* Checkbox */
.checkbox-container {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin: var(--spacing-sm) 0 var(--spacing-md);
}

.checkbox {
  width: 22px;
  height: 22px;
  border-radius: 4px;
  border: 2px solid var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
}

.checkbox.checked {
  background: var(--color-primary);
}

.checkbox svg {
  width: 14px;
  height: 14px;
  color: white;
}

/* ============================================
   Info Box
   ============================================ */

.info-box {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  background: rgba(0, 102, 204, 0.1);
  border-radius: var(--radius-sm);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  text-align: left;
}

.info-box.info-warning {
  background: rgba(255, 149, 0, 0.1);
}

.info-box.info-success {
  background: rgba(52, 199, 89, 0.1);
}

.info-box.info-error {
  background: rgba(255, 59, 48, 0.1);
}

.info-box svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--color-primary);
}

.info-box.info-warning svg {
  color: var(--color-warning);
}

.info-box.info-success svg {
  color: var(--color-success);
}

.info-box.info-error svg {
  color: var(--color-error);
}

.info-box p {
  font-size: var(--font-size-small);
  color: var(--color-text);
  line-height: 1.5;
}

/* ============================================
   Error & Success Messages
   ============================================ */

.error-text {
  color: var(--color-error);
  font-size: var(--font-size-small);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.success-text {
  color: var(--color-success);
  font-size: var(--font-size-small);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

/* ============================================
   Divider
   ============================================ */

.divider {
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
  margin: var(--spacing-2xl) 0;
}

.divider-with-text {
  display: flex;
  align-items: center;
  margin: var(--spacing-xl) 0;
}

.divider-with-text::before,
.divider-with-text::after {
  content: '';
  flex: 1;
  height: 1px;
  background: rgba(0, 0, 0, 0.1);
}

.divider-with-text span {
  color: var(--color-text-secondary);
  padding: 0 var(--spacing-lg);
  font-size: var(--font-size-small);
}

/* ============================================
   Store Buttons
   ============================================ */

.store-buttons {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

.store-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  background: #1a1a1a;
  color: white;
  border-radius: 10px;
  text-decoration: none;
  font-size: var(--font-size-caption);
  font-weight: var(--font-weight-medium);
  transition: opacity var(--transition-normal);
}

.store-btn:hover {
  opacity: 0.85;
}

.store-btn svg {
  width: 20px;
  height: 20px;
}

/* ============================================
   Loading Spinner
   ============================================ */

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(0, 102, 204, 0.2);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* ============================================
   Utility Classes
   ============================================ */

.hidden {
  display: none !important;
}

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

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

.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }
.p-2xl { padding: var(--spacing-2xl); }

.w-full { width: 100%; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }