/**
 * OfferQuest Web Portal - Stylesheet
 * 
 * This file contains styles for:
 * - Auth pages (login, signup, forgot password, reset password)
 * - Success/redirect page
 * - CSS custom properties for legacy compatibility
 * 
 * Dashboard (app.html) uses Tailwind CSS for styling.
 */

/* ============================================================
   CSS Custom Properties - For Auth Pages
   ============================================================ */
:root {
  /* Colors - Light Theme */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-input: #f1f5f9;
  
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  
  /* Accent Colors - Updated to match new design */
  --accent: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: rgba(37, 99, 235, 0.1);
  
  /* Status Colors */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.1);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.1);
  --error: #ef4444;
  --error-bg: rgba(239, 68, 68, 0.1);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.1);
  
  /* Borders */
  --border: #e2e8f0;
  --border-light: #cbd5e1;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --border-radius-full: 9999px;
  
  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  
  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 32px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* ============================================================
   Dark Theme Override (for auth pages)
   ============================================================ */
[data-theme="dark"] {
  --bg-primary: #020617;
  --bg-secondary: #0F172A;
  --bg-card: #1E293B;
  --bg-input: #334155;
  
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  
  --border: #334155;
  --border-light: #475569;
  
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.3);
}

/* ============================================================
   Auth Pages - Always Light Theme
   ============================================================ */
body.auth-page {
  --bg-primary: #f8fafc !important;
  --bg-secondary: #ffffff !important;
  --bg-card: #ffffff !important;
  --bg-input: #f1f5f9 !important;
  
  --text-primary: #1e293b !important;
  --text-secondary: #64748b !important;
  --text-muted: #94a3b8 !important;
  
  --border: #e2e8f0 !important;
  --border-light: #cbd5e1 !important;
}

/* ============================================================
   Reset & Base Styles (Auth Pages)
   ============================================================ */
.auth-page *, .auth-page *::before, .auth-page *::after {
  box-sizing: border-box;
}

.auth-page {
  margin: 0;
  padding: 0;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.5;
  min-height: 100vh;
}

.auth-page a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.auth-page a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ============================================================
   Login Page Layout
   ============================================================ */
.login-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 400px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  margin-bottom: var(--spacing-lg);
}

.login-logo img {
  width: 80px;
  height: 80px;
  margin-bottom: var(--spacing-md);
}

.login-logo h1 {
  margin: 0;
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.login-tagline {
  color: var(--text-secondary);
  margin: 0 0 var(--spacing-xl);
  font-size: var(--font-size-base);
}

.login-terms {
  margin-top: var(--spacing-lg);
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

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

.login-features {
  display: flex;
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
  flex-wrap: wrap;
  justify-content: center;
}

.feature {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
}

.feature-icon {
  font-size: var(--font-size-2xl);
}

.feature-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ============================================================
   Auth Form Components
   ============================================================ */

/* Auth Tabs */
.auth-tabs {
  display: flex;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border);
}

.auth-tab {
  flex: 1;
  padding: var(--spacing-sm) var(--spacing-md);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.auth-tab:hover {
  color: var(--text-primary);
}

.auth-tab.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Auth Form */
.auth-form {
  text-align: left;
}

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

.auth-form .form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--text-primary);
}

.auth-form .form-group input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-input);
  border: 2px solid var(--border);
  border-radius: var(--border-radius);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.auth-form .form-group input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

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

/* Input error state */
.auth-form .form-group input.error {
  border-color: var(--error);
}

.auth-form .form-group input.error:focus {
  box-shadow: 0 0 0 3px var(--error-bg);
}

/* Inline field error */
.field-error {
  display: block;
  min-height: 18px;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-xs);
  color: var(--error);
  line-height: 1.4;
}

.field-error:empty {
  visibility: hidden;
}

/* Password strength indicator */
.password-strength {
  margin-top: var(--spacing-xs);
}

.strength-bar {
  height: 4px;
  background: var(--border);
  border-radius: var(--border-radius-full);
  overflow: hidden;
  margin-bottom: var(--spacing-xs);
}

.strength-fill {
  height: 100%;
  width: 0%;
  border-radius: var(--border-radius-full);
  transition: width var(--transition-fast), background-color var(--transition-fast);
}

.strength-fill[data-strength="1"] {
  width: 20%;
  background-color: var(--error);
}

.strength-fill[data-strength="2"] {
  width: 40%;
  background-color: var(--error);
}

.strength-fill[data-strength="3"] {
  width: 60%;
  background-color: var(--warning);
}

.strength-fill[data-strength="4"] {
  width: 80%;
  background-color: var(--success);
}

.strength-fill[data-strength="5"] {
  width: 100%;
  background-color: var(--success);
}

.strength-text {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.strength-text.weak {
  color: var(--error);
}

.strength-text.medium {
  color: var(--warning);
}

.strength-text.strong {
  color: var(--success);
}

/* Auth form submit button */
.auth-form .btn-primary {
  width: 100%;
  padding: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

/* Forgot password link */
.forgot-link {
  display: block;
  text-align: center;
  margin-top: var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.forgot-link:hover {
  color: var(--accent);
}

/* Auth divider */
.auth-divider {
  display: flex;
  align-items: center;
  margin: var(--spacing-lg) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.auth-divider span {
  padding: 0 var(--spacing-md);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* Auth message (success/error) */
.auth-message {
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  text-align: center;
  margin-bottom: var(--spacing-md);
}

.auth-message:empty {
  display: none;
}

.auth-message.success {
  background: var(--success-bg);
  color: var(--success);
  border: 1px solid var(--success);
}

.auth-message.error {
  background: var(--error-bg);
  color: var(--error);
  border: 1px solid var(--error);
}

.auth-message.info {
  background: var(--info-bg);
  color: var(--info);
  border: 1px solid var(--info);
}

/* Back to login link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.back-link:hover {
  color: var(--accent);
  text-decoration: none;
}

/* ============================================================
   Buttons (Auth Pages)
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--border-radius);
  font-family: inherit;
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
}

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

.btn-primary {
  background: var(--accent);
  color: white;
  border: 2px solid var(--accent-hover);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

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

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-card);
  border-color: var(--border-light);
}

.btn-text {
  background: transparent;
  color: var(--text-secondary);
  padding: var(--spacing-xs) var(--spacing-sm);
}

.btn-text:hover:not(:disabled) {
  color: var(--text-primary);
}

.btn-google {
  background: white;
  color: #1f2937;
  border: 2px solid #e5e7eb;
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--font-size-base);
}

.btn-google:hover:not(:disabled) {
  background: #f9fafb;
  border-color: #d1d5db;
}

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

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: var(--font-size-xs);
}

.btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

/* ============================================================
   Success Page
   ============================================================ */
.success-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-primary);
}

.success-icon {
  font-size: 64px;
  margin-bottom: var(--spacing-lg);
}

.success-container h1 {
  margin: 0 0 var(--spacing-md);
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--text-primary);
}

.success-container p {
  color: var(--text-secondary);
  margin: 0 0 var(--spacing-lg);
}

.countdown {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ============================================================
   Utility Classes
   ============================================================ */
.hidden {
  display: none !important;
}

.loading {
  opacity: 0.6;
  pointer-events: none;
}

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

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

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }

/* ============================================================
   Responsive Design (Auth Pages)
   ============================================================ */
@media (max-width: 480px) {
  .login-card {
    padding: var(--spacing-lg);
  }
  
  .login-features {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}