/* ============================================
   ValueHound Design System
   Centralized design tokens and base styles
   Applied across all pages
   ============================================ */

/* ============================================
   Design Tokens - Colors
   ============================================ */
:root {
    /* Background Colors - Default (dark theme) */
    /* Note: Landing page uses same values, so these match */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-card: #1a1a24;
    --bg-card-hover: #22222e;
    
    /* Accent Colors */
    --accent-green: #00d4aa;
    --accent-green-dim: rgba(0, 212, 170, 0.1);
    --accent-blue: #4f8cff;
    --accent-blue-dim: rgba(79, 140, 255, 0.1);
    
    /* Text Colors */
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #6a6a7a;
    
    /* Border & Divider */
    --border-color: rgba(255, 255, 255, 0.08);
    --border-light: rgba(255, 255, 255, 0.05);
    
    /* Gradients */
    --gradient-main: linear-gradient(135deg, #00d4aa 0%, #4f8cff 100%);
    
    /* Typography */
    --font-heading: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Spacing & Layout */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.2);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.3);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
}

/* Light Theme Overrides */
[data-theme="light"] {
    /* Background Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9;
    
    /* Accent Colors */
    --accent-green: #10b981;
    --accent-green-dim: rgba(16, 185, 129, 0.1);
    --accent-blue: #667eea;
    --accent-blue-dim: rgba(102, 126, 234, 0.1);
    
    /* Text Colors */
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #475569; /* Darker for better contrast in light theme */
    
    /* Border & Divider */
    --border-color: rgba(0, 0, 0, 0.1);
    --border-light: rgba(0, 0, 0, 0.05);
    
    /* Gradients */
    --gradient-main: linear-gradient(135deg, #10b981 0%, #667eea 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.15);
}

/* Dark Theme Overrides - Preserve gradient backgrounds from common.css */
[data-theme="dark"] {
    /* Background Colors - Using gradients like common.css for consistency */
    --bg-primary: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --bg-body: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    
    /* Keep existing accent and text colors, but let common.css override if needed */
    /* These will be overridden by common.css's [data-theme="dark"] selector anyway */
}

/* ============================================
   Base Styles
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Body styles - landing_page.css will override these for landing page */
/* Only set base properties, let individual pages set background/color */
body {
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color var(--transition-slow), color var(--transition-slow);
    position: relative;
}

/* Ensure main content appears above background effects */
main,
.container,
.container-fluid {
    position: relative;
    z-index: 1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* ============================================
   Background Effects
   ============================================ */
.bg-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

[data-theme="light"] .bg-grid {
    background-image: 
        linear-gradient(rgba(0,0,0,0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0,0,0,0.02) 1px, transparent 1px);
}

.bg-glow {
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 20%, rgba(0, 212, 170, 0.12) 0%, transparent 40%),
                radial-gradient(circle at 70% 60%, rgba(79, 140, 255, 0.08) 0%, transparent 40%);
    pointer-events: none;
    z-index: 0;
}

[data-theme="light"] .bg-glow {
    background: radial-gradient(circle at 30% 20%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
                radial-gradient(circle at 70% 60%, rgba(102, 126, 234, 0.04) 0%, transparent 40%);
}

/* ============================================
   Button Styles
   ============================================ */
.btn-primary,
.btn-gradient {
    background: var(--gradient-main);
    color: var(--bg-primary);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all var(--transition-base);
    cursor: pointer;
    white-space: nowrap;
    text-align: center;
}

[data-theme="light"] .btn-primary,
[data-theme="light"] .btn-gradient {
    color: white;
}

.btn-primary:hover,
.btn-gradient:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

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

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: all var(--transition-base);
    cursor: pointer;
    text-align: center;
}

.btn-secondary:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-green);
    color: var(--accent-green);
    text-decoration: none;
}

/* ============================================
   Card Styles
   ============================================ */
.card,
.feature-card,
.problem-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    transition: all var(--transition-base);
}

.card:hover,
.feature-card:hover,
.problem-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Glassmorphism Card Variant */
.card-glass {
    background: rgba(26, 26, 36, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
}

[data-theme="light"] .card-glass {
    background: rgba(255, 255, 255, 0.9);
}

/* ============================================
   Form Styles
   ============================================ */
.form-control,
.form-select {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    transition: all var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    background: var(--bg-card-hover);
    border-color: var(--accent-green);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--accent-green-dim);
    outline: none;
}

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

/* ============================================
   Badge & Label Styles
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.75rem;
    border-radius: var(--border-radius-sm);
    font-size: 0.875rem;
    font-weight: 500;
}

.badge-primary {
    background: var(--gradient-main);
    color: var(--bg-primary);
}

[data-theme="light"] .badge-primary {
    color: white;
}

.badge-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.badge-success {
    background: var(--accent-green-dim);
    color: var(--accent-green);
    border: 1px solid var(--accent-green);
}

/* ============================================
   Link Styles
   ============================================ */
a {
    color: var(--accent-green);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--accent-blue);
    text-decoration: none;
}

/* ============================================
   Utility Classes
   ============================================ */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-accent { color: var(--accent-green) !important; }

/* Light theme - make text-muted more visible for better contrast */
[data-theme="light"] .text-muted {
    color: var(--text-muted, #475569) !important;
}

.bg-primary { background: var(--bg-primary) !important; }
.bg-secondary { background: var(--bg-secondary) !important; }
.bg-card { background: var(--bg-card) !important; }

.border-color { border-color: var(--border-color) !important; }

/* ============================================
   Bootstrap Component Overrides
   ============================================ */
/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--accent-green);
    box-shadow: var(--shadow-md);
}

.card-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.card-body {
    color: var(--text-primary);
}

/* Buttons - Bootstrap Overrides */
/* Override Bootstrap's CSS variables for buttons */
/* Note: Bootstrap CSS variables don't support gradients, so we use solid color fallbacks */
/* The actual gradient is applied via background property override */
:root {
    --bs-btn-color: var(--bg-primary);
    --bs-btn-bg: #00d4aa; /* Solid color fallback for gradient */
    --bs-btn-border-color: transparent;
    --bs-btn-hover-color: var(--bg-primary);
    --bs-btn-hover-bg: #00d4aa;
    --bs-btn-hover-border-color: transparent;
    --bs-btn-focus-shadow-rgb: 0, 212, 170;
    --bs-btn-active-color: var(--bg-primary);
    --bs-btn-active-bg: #00d4aa;
    --bs-btn-active-border-color: transparent;
    --bs-btn-disabled-color: var(--bg-primary);
    --bs-btn-disabled-bg: #00d4aa;
    --bs-btn-disabled-border-color: transparent;
}

[data-theme="light"] {
    --bs-btn-color: #ffffff;
    --bs-btn-bg: #10b981; /* Solid color fallback for light theme gradient */
    --bs-btn-hover-bg: #10b981;
    --bs-btn-active-bg: #10b981;
    --bs-btn-disabled-bg: #10b981;
    --bs-btn-hover-color: #ffffff;
    --bs-btn-active-color: #ffffff;
    --bs-btn-disabled-color: #ffffff;
}

.btn {
    border-radius: var(--border-radius-md);
    font-weight: 500;
    transition: all var(--transition-base);
    border: 1px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-main) !important;
    background-image: var(--gradient-main) !important;
    border: none !important;
    color: var(--bg-primary) !important;
    --bs-btn-color: var(--bg-primary) !important;
    --bs-btn-bg: var(--accent-green) !important;
}

[data-theme="light"] .btn-primary {
    color: white !important;
    --bs-btn-color: #ffffff !important;
}

[data-theme="dark"] .btn-primary {
    color: #0a0a0f !important;
    --bs-btn-color: #0a0a0f !important;
}

.btn-primary:hover,
.btn-primary:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: var(--gradient-main) !important;
    background-image: var(--gradient-main) !important;
    --bs-btn-hover-bg: var(--accent-green) !important;
    --bs-btn-hover-color: var(--bg-primary) !important;
}

.btn-primary:active {
    background: var(--gradient-main) !important;
    background-image: var(--gradient-main) !important;
    --bs-btn-active-bg: var(--accent-green) !important;
    transform: translateY(0);
}

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

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

.btn-outline-primary {
    border-color: var(--accent-green);
    color: var(--accent-green);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--gradient-main) !important;
    background-image: var(--gradient-main) !important;
    color: var(--bg-primary) !important;
    border-color: transparent !important;
}

[data-theme="light"] .btn-outline-primary:hover {
    color: white !important;
}

[data-theme="dark"] .btn-outline-primary:hover {
    color: #0a0a0f !important;
}

/* Forms */
.form-control,
.form-select {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-control:focus,
.form-select:focus {
    background: var(--bg-card-hover);
    border-color: var(--accent-green);
    color: var(--text-primary);
    box-shadow: 0 0 0 3px var(--accent-green-dim);
    outline: none;
}

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

.form-label {
    color: var(--text-primary);
    font-weight: 500;
}

/* Navbar */
.navbar {
    background: rgba(var(--bg-card-rgb, 26, 26, 36), 0.85) !important;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="light"] .navbar {
    background: rgba(255, 255, 255, 0.9) !important;
}

.navbar-brand {
    color: var(--text-primary) !important;
}

.navbar-nav .nav-link {
    color: var(--text-secondary);
    transition: color var(--transition-base);
}

/* Ensure nav links are visible in light theme */
[data-theme="light"] .navbar-nav .nav-link {
    color: var(--text-primary);
}

.navbar-nav .nav-link:hover {
    color: var(--accent-green);
}

/* Modals */
.modal-content {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    color: var(--text-primary);
}

.modal-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.modal-body {
    background: var(--bg-card);
    color: var(--text-primary);
}

.modal-footer {
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}

/* Badges */
.badge {
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    padding: 0.375rem 0.75rem;
}

.badge-primary {
    background: var(--gradient-main);
    color: var(--bg-primary);
}

[data-theme="light"] .badge-primary {
    color: white;
}

.badge-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

/* Tables */
.table {
    color: var(--text-primary);
}

.table thead th {
    background: var(--bg-secondary);
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
}

.table tbody tr:hover {
    background: var(--bg-secondary);
}

/* Alerts */
.alert {
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
}

.alert-primary {
    background: var(--accent-green-dim);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

/* Dropdowns */
.dropdown-menu {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

.dropdown-item {
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.dropdown-item:hover {
    background: var(--bg-secondary);
    color: var(--accent-green);
}

/* Pagination */
.pagination .page-link {
    background: var(--bg-card);
    border-color: var(--border-color);
    color: var(--text-primary);
}

.pagination .page-link:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.pagination .page-item.active .page-link {
    background: var(--gradient-main);
    border-color: var(--accent-green);
    color: var(--bg-primary);
}

[data-theme="light"] .pagination .page-item.active .page-link {
    color: white;
}

/* ============================================
   Responsive Typography
   ============================================ */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
}