/*
* FacultyFinder Custom Theme
* Professional academic theme for faculty discovery platform
*/

:root {
    /* Primary Color Palette - Academic Blues */
    --ff-primary: #1e3a8a;        /* Deep academic blue */
    --ff-primary-light: #3b82f6;   /* Lighter blue for hover states */
    --ff-primary-dark: #1e293b;    /* Dark blue for headers */
    --ff-primary-50: #eff6ff;
    --ff-primary-100: #dbeafe;
    --ff-primary-500: #3b82f6;
    --ff-primary-600: #2563eb;
    --ff-primary-700: #1d4ed8;
    --ff-primary-800: #1e40af;
    --ff-primary-900: #1e3a8a;

    /* Secondary Color Palette - Academic Gold */
    --ff-secondary: #d97706;       /* Academic gold/orange */
    --ff-secondary-light: #f59e0b; /* Lighter gold */
    --ff-secondary-dark: #b45309;  /* Darker gold */

    /* Accent Color Palette - Research Green */
    --ff-accent: #059669;          /* Research/knowledge green */
    --ff-accent-light: #10b981;    /* Lighter green */
    --ff-accent-dark: #047857;     /* Darker green */

    /* Light Theme Colors */
    --ff-bg-primary: #ffffff;
    --ff-bg-secondary: #f8fafc;
    --ff-bg-tertiary: #f1f5f9;
    --ff-text-primary: #1e293b;
    --ff-text-secondary: #475569;
    --ff-text-muted: #64748b;
    --ff-border-color: #e2e8f0;
    --ff-border-light: #f1f5f9;

    /* Neutral Grays */
    --ff-gray-50: #f8fafc;
    --ff-gray-100: #f1f5f9;
    --ff-gray-200: #e2e8f0;
    --ff-gray-300: #cbd5e1;
    --ff-gray-400: #94a3b8;
    --ff-gray-500: #64748b;
    --ff-gray-600: #475569;
    --ff-gray-700: #334155;
    --ff-gray-800: #1e293b;
    --ff-gray-900: #0f172a;

    /* Semantic Colors */
    --ff-success: #059669;
    --ff-warning: #d97706;
    --ff-danger: #dc2626;
    --ff-info: #0284c7;

    /* Typography */
    --ff-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --ff-font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;

    /* Spacing and Layout */
    --ff-radius: 0.5rem;
    --ff-radius-lg: 0.75rem;
    --ff-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --ff-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --ff-transition: all 0.2s ease-in-out;
}

/* Dark Theme Variables */
[data-theme="dark"] {
    /* Dark Theme Background Colors */
    --ff-bg-primary: #0f172a;
    --ff-bg-secondary: #1e293b;
    --ff-bg-tertiary: #334155;
    
    /* Dark Theme Text Colors */
    --ff-text-primary: #f1f5f9;
    --ff-text-secondary: #cbd5e1;
    --ff-text-muted: #94a3b8;
    
    /* Dark Theme Border Colors */
    --ff-border-color: #334155;
    --ff-border-light: #475569;
    
    /* Adjusted Primary Colors for Dark Theme */
    --ff-primary-50: #1e293b;
    --ff-primary-100: #334155;
    
    /* Dark Theme Shadows */
    --ff-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --ff-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

/* Global Styles */
html[data-theme="dark"] {
    color-scheme: dark;
}

html[data-theme="light"] {
    color-scheme: light;
}

body {
    background-color: var(--ff-bg-primary);
    color: var(--ff-text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navigation Bar */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--ff-primary) !important;
}

.navbar {
    background-color: var(--ff-bg-primary) !important;
    border-bottom: 1px solid var(--ff-border-color);
}

.navbar .nav-link {
    color: var(--ff-text-secondary) !important;
}

.navbar .nav-link:hover {
    color: var(--ff-primary) !important;
}

.navbar .nav-link.active {
    color: var(--ff-primary) !important;
    font-weight: 600;
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, var(--ff-primary-800) 0%, var(--ff-primary-600) 100%);
    border-bottom: 3px solid var(--ff-secondary);
    color: white;
}

/* Cards */
.card {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.facultyfinder-card {
    border: 1px solid var(--ff-border-color);
    border-radius: var(--ff-radius-lg);
    box-shadow: var(--ff-shadow);
    transition: var(--ff-transition);
    background-color: var(--ff-bg-secondary);
}

.facultyfinder-card:hover {
    box-shadow: var(--ff-shadow-lg);
    transform: translateY(-2px);
}

/* Featured content highlighting */
.featured-content {
    border-left: 4px solid var(--ff-primary);
    padding-left: 1rem;
}

/* Search and Filter Components */
.search-form {
    background: var(--ff-bg-secondary);
    border-radius: var(--ff-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--ff-border-color);
}

.search-filters {
    background: var(--ff-bg-secondary);
    border-radius: var(--ff-radius-lg);
    padding: 1.5rem;
    border: 1px solid var(--ff-border-color);
}

.filter-section {
    border-top: 4px solid var(--ff-secondary);
    padding-top: 1rem;
}

/* Form Controls */
.form-control {
    background-color: var(--ff-bg-primary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.form-control:focus {
    background-color: var(--ff-bg-primary);
    border-color: var(--ff-primary);
    color: var(--ff-text-primary);
    box-shadow: 0 0 0 0.2rem rgba(30, 58, 138, 0.25);
}

.form-select {
    background-color: var(--ff-bg-primary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.form-select:focus {
    background-color: var(--ff-bg-primary);
    border-color: var(--ff-primary);
    color: var(--ff-text-primary);
    box-shadow: 0 0 0 0.2rem rgba(30, 58, 138, 0.25);
}

/* Form Labels */
.form-label {
    color: var(--ff-text-secondary);
    font-weight: 600;
}

.filter-label {
    color: var(--ff-text-secondary);
    font-weight: 600;
}

/* Buttons */
.btn-primary {
    background-color: var(--ff-primary);
    border-color: var(--ff-primary);
}

.btn-primary:hover {
    background-color: var(--ff-primary-light);
    border-color: var(--ff-primary-light);
}

.btn-outline-primary {
    color: var(--ff-primary);
    border-color: var(--ff-primary);
}

.btn-outline-primary:hover {
    background-color: var(--ff-primary);
    border-color: var(--ff-primary);
    color: white;
}

.btn-outline-secondary {
    color: var(--ff-text-secondary);
    border-color: var(--ff-border-color);
}

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

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

.table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: var(--ff-bg-tertiary);
}

.table-hover > tbody > tr:hover > td {
    background-color: var(--ff-bg-tertiary);
}

.table-dark {
    background-color: var(--ff-bg-tertiary);
    color: var(--ff-text-primary);
}

/* Alerts */
.alert {
    border-color: var(--ff-border-color);
}

.alert-success {
    background-color: var(--ff-success);
    color: white;
    border-color: var(--ff-success);
}

.alert-warning {
    background-color: var(--ff-warning);
    color: white;
    border-color: var(--ff-warning);
}

.alert-danger {
    background-color: var(--ff-danger);
    color: white;
    border-color: var(--ff-danger);
}

.alert-info {
    background-color: var(--ff-info);
    color: white;
    border-color: var(--ff-info);
}

/* Text Colors */
.text-muted {
    color: var(--ff-text-muted) !important;
}

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

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

/* Backgrounds */
.bg-light {
    background-color: var(--ff-bg-secondary) !important;
}

.bg-white {
    background-color: var(--ff-bg-primary) !important;
}

/* Footer */
.footer {
    background-color: var(--ff-bg-tertiary);
    border-top: 1px solid var(--ff-border-color);
    color: var(--ff-text-primary);
}

.footer h5, .footer h6 {
    color: var(--ff-text-primary);
}

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

.footer a:hover {
    color: var(--ff-primary);
}

/* Dropdown Menus */
.dropdown-menu {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
}

.dropdown-item {
    color: var(--ff-text-primary);
}

.dropdown-item:hover {
    background-color: var(--ff-bg-tertiary);
    color: var(--ff-text-primary);
}

/* Badges */
.badge {
    color: white;
}

.badge.bg-secondary {
    background-color: var(--ff-text-secondary) !important;
}

/* Statistics Section */
.stats-section {
    background-color: var(--ff-bg-secondary);
}

.stat-card {
    background-color: var(--ff-bg-primary);
    border: 1px solid var(--ff-border-color);
    border-radius: var(--ff-radius-lg);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--ff-shadow);
    border-top: 4px solid var(--ff-primary);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--ff-primary);
    display: block;
}

.stat-label {
    color: var(--ff-text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.5rem;
}

/* CV Upload Area */
.cv-upload-area, .upload-area {
    border: 2px dashed var(--ff-primary-300);
    border-radius: var(--ff-radius-lg);
    padding: 2rem;
    text-align: center;
    background: var(--ff-bg-secondary);
    transition: var(--ff-transition);
    color: var(--ff-text-primary);
}

.cv-upload-area:hover, .upload-area:hover {
    border-color: var(--ff-primary);
    background: var(--ff-bg-tertiary);
}

.cv-upload-area.dragover, .upload-area.dragover {
    border-color: var(--ff-accent);
    background: var(--ff-bg-tertiary);
}

.cv-upload-area.success {
    border-color: var(--ff-accent);
    background: var(--ff-bg-secondary);
}

/* Publication List */
.publication-item {
    border-bottom: 1px solid var(--ff-border-color);
    padding: 1rem 0;
}

.publication-item:last-child {
    border-bottom: none;
}

.publication-title {
    font-weight: 600;
    color: var(--ff-text-primary);
    margin-bottom: 0.25rem;
}

.publication-authors {
    color: var(--ff-text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.publication-journal {
    color: var(--ff-text-muted);
    font-size: 0.875rem;
    font-style: italic;
}

/* Theme Toggle Button */
#theme-toggle {
    transition: all 0.3s ease;
    background-color: var(--ff-bg-secondary) !important;
    border-color: var(--ff-border-color) !important;
    color: var(--ff-text-primary) !important;
    box-shadow: var(--ff-shadow-lg);
}

#theme-toggle:hover {
    background-color: var(--ff-bg-tertiary) !important;
    border-color: var(--ff-primary) !important;
    color: var(--ff-primary) !important;
    transform: scale(1.1);
}

/* AI Service Cards and other interactive elements */
.ai-service-card {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.ai-service-card:hover {
    background-color: var(--ff-bg-tertiary);
    border-color: var(--ff-primary);
}

.ai-service-card.selected {
    border-color: var(--ff-primary);
    background-color: var(--ff-bg-tertiary);
}

/* Payment Method Cards */
.payment-method-card {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.payment-method-card:hover {
    background-color: var(--ff-bg-tertiary);
    border-color: var(--ff-primary);
}

.payment-method-card.selected {
    border-color: var(--ff-primary);
    background-color: var(--ff-bg-tertiary);
}

/* Pricing Cards */
.pricing-card {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.pricing-card:hover {
    background-color: var(--ff-bg-tertiary);
    border-color: var(--ff-primary);
}

.pricing-card.recommended {
    border-color: var(--ff-accent);
    background-color: var(--ff-bg-tertiary);
}

/* Faculty and University Cards */
.faculty-card, .university-card {
    background-color: var(--ff-bg-secondary);
    border-color: var(--ff-border-color);
    color: var(--ff-text-primary);
}

.faculty-card:hover, .university-card:hover {
    background-color: var(--ff-bg-tertiary);
    border-color: var(--ff-primary);
}

/* Loading Spinners */
.loading-spinner {
    border-color: var(--ff-border-light);
    border-top-color: var(--ff-primary);
}

/* Links */
a {
    color: var(--ff-primary);
}

a:hover {
    color: var(--ff-primary-light);
}

/* Border utilities */
.border {
    border-color: var(--ff-border-color) !important;
}

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

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

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

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