/* ============================================
   THP KEY Management - Optimized Styles
   ============================================ */

/* CSS Variables for Theme Management */
:root {
    /* Light Theme Colors */
    --bg-primary: linear-gradient(135deg, #1e3a5f 0%, #2d4a6b 100%);
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-navbar: rgba(255, 255, 255, 0.95);
    --bg-table: rgba(255, 255, 255, 0.9);
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #868e96;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.1);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.15);
    
    /* Brand Colors - Professional Blue */
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #1e40af;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #06b6d4;
    
    /* Typography */
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --line-height-base: 1.6;
    --line-height-tight: 1.4;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 15px;
    
    /* Transitions - Reduced for performance */
    --transition-fast: 0.15s ease;
    --transition-base: 0.2s ease;
    --transition-slow: 0.3s ease;
    
    /* Animation Duration - Reduced */
    --anim-duration-fast: 0.2s;
    --anim-duration-base: 0.3s;
    --anim-duration-slow: 0.5s;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --bg-card: rgba(30, 41, 59, 0.95);
    --bg-navbar: rgba(15, 23, 42, 0.95);
    --bg-table: rgba(30, 41, 59, 0.9);
    --text-primary: #e9ecef;
    --text-secondary: #adb5bd;
    --text-muted: #6c757d;
    --border-color: #475569;
    --shadow-sm: 0 2px 10px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
    --shadow-lg: 0 4px 20px rgba(0,0,0,0.5);
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    background: var(--bg-primary);
    min-height: 100vh;
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    transition: background var(--transition-base), color var(--transition-base);
}

/* Typography Improvements */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

p {
    margin-bottom: var(--spacing-md);
    line-height: var(--line-height-base);
    color: var(--text-primary);
}

/* Override Bootstrap text utilities for dark mode */
[data-theme="dark"] .text-muted,
[data-theme="dark"] .text-secondary {
    color: var(--text-secondary) !important;
}

[data-theme="dark"] .text-primary {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-dark {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-black {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-white {
    color: var(--text-primary) !important;
}

/* Ensure all text elements use theme colors */
[data-theme="dark"] {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .card,
[data-theme="dark"] .card-body,
[data-theme="dark"] .card-header,
[data-theme="dark"] .card-title,
[data-theme="dark"] .card-text,
[data-theme="dark"] .table,
[data-theme="dark"] .table td,
[data-theme="dark"] .table th,
[data-theme="dark"] small,
[data-theme="dark"] .small {
    color: var(--text-primary) !important;
}

/* Override Bootstrap default text colors */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] p,
[data-theme="dark"] span,
[data-theme="dark"] div,
[data-theme="dark"] label {
    color: var(--text-primary);
}

[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select,
[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea {
    color: var(--text-primary);
    background-color: var(--bg-card);
}

[data-theme="dark"] .form-control::placeholder,
[data-theme="dark"] .form-select::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

/* Navbar */
.navbar {
    background: var(--bg-navbar) !important;
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: background var(--transition-base), box-shadow var(--transition-base);
    z-index: 1030;
    position: sticky;
    top: 0;
}

.navbar-brand {
    font-weight: 600;
    color: var(--text-primary) !important;
}

.nav-link {
    color: var(--text-primary) !important;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xs);
    transition: all var(--transition-base);
    padding: var(--spacing-sm) var(--spacing-md) !important;
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary);
    color: white !important;
}

/* Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: background var(--transition-base), box-shadow var(--transition-base);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-lg);
    background: transparent;
}

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

/* Buttons */
.btn {
    border-radius: var(--radius-md);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-lg);
    transition: all var(--transition-base);
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: none;
}

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

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

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

.form-control:focus,
.form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
    outline: none;
}

.form-label {
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

/* Tables */
.table {
    background: var(--bg-table);
    border-radius: var(--radius-md);
    overflow: hidden;
    color: var(--text-primary);
}

.table th {
    background-color: rgba(37, 99, 235, 0.1);
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
}

.table td {
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
    color: var(--text-primary);
}

[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > td {
    background-color: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
}

[data-theme="dark"] .table-hover > tbody > tr:hover > td {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--text-primary);
}

/* Badges */
.badge {
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 20px;
    font-weight: 500;
    color: white;
}

[data-theme="dark"] .badge.bg-primary,
[data-theme="dark"] .badge.bg-success,
[data-theme="dark"] .badge.bg-danger,
[data-theme="dark"] .badge.bg-warning,
[data-theme="dark"] .badge.bg-info {
    color: white;
}

/* Alerts */
.alert {
    border-radius: var(--radius-md);
    border: none;
    padding: var(--spacing-md);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 1055;
    width: 350px;
}

.toast-notification {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: none;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-md);
    position: relative;
    opacity: 0;
    transform: translateX(100%);
    transition: all var(--transition-base);
}

.toast-notification.show {
    opacity: 1;
    transform: translateX(0);
}

.toast-notification .toast-close {
    position: absolute;
    top: 10px;
    right: 10px;
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.6;
    color: var(--text-primary);
    transition: opacity var(--transition-fast);
}

.toast-notification .toast-close:hover,
.toast-notification .toast-close:focus {
    opacity: 1;
}

.toast-success {
    border-left: 4px solid var(--success);
}

.toast-error {
    border-left: 4px solid var(--danger);
}

.toast-warning {
    border-left: 4px solid var(--warning);
}

.toast-info {
    border-left: 4px solid var(--info);
}

/* Dark Mode Toggle */
.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: all var(--transition-base);
    color: var(--text-primary);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.theme-toggle:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.theme-toggle:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Code Blocks */
code {
    background-color: rgba(0,0,0,0.05);
    color: var(--text-primary);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    word-break: break-all;
}

[data-theme="dark"] code {
    background-color: rgba(255,255,255,0.1);
    color: var(--text-primary);
}

/* Key code display - special styling */
.key-code {
    color: var(--primary);
    background-color: rgba(37, 99, 235, 0.1);
    font-family: 'Courier New', monospace;
    font-weight: 500;
}

[data-theme="dark"] .key-code {
    color: #60a5fa;
    background-color: rgba(96, 165, 250, 0.15);
}

/* Accessibility Improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Skip to main content link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 var(--radius-md) 0;
}

.skip-link:focus {
    top: 0;
}

/* Focus visible improvements */
*:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    :root {
        --font-size-base: 0.875rem;
        --spacing-lg: 1rem;
    }
    
    body {
        font-size: var(--font-size-base);
    }
    
    .container {
        padding-left: var(--spacing-md);
        padding-right: var(--spacing-md);
    }
    
    .card {
        margin: var(--spacing-md) 0;
    }
    
    .card-body,
    .card-header {
        padding: var(--spacing-md);
    }
    
    .toast-container {
        width: calc(100% - 20px);
        left: 10px;
        right: 10px;
        top: 10px;
    }
    
    .table-responsive {
        font-size: var(--font-size-sm);
    }
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 576px) {
    :root {
        --font-size-base: 0.8125rem;
        --spacing-md: 0.75rem;
    }
    
    .card-body,
    .card-header {
        padding: var(--spacing-md);
    }
    
    .form-control,
    .form-select {
        font-size: 16px; /* Prevent zoom on iOS */
        padding: var(--spacing-sm);
    }
}

/* Tabs styling */
.nav-tabs {
    border-bottom: 2px solid var(--border-color);
    position: relative;
    z-index: 1;
}

.nav-tabs .nav-link {
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    transition: all var(--transition-base);
    padding: var(--spacing-sm) var(--spacing-md);
}

.nav-tabs .nav-link:hover {
    border-bottom-color: var(--primary);
    color: var(--text-primary);
}

.nav-tabs .nav-link.active {
    border-bottom-color: var(--primary);
    color: var(--primary);
    font-weight: 600;
    background: transparent;
}

[data-theme="dark"] .nav-tabs .nav-link {
    color: var(--text-secondary);
}

[data-theme="dark"] .nav-tabs .nav-link.active {
    color: #88a3ff;
}

/* Pagination */
.pagination {
    gap: var(--spacing-xs);
}

.pagination .page-link {
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    background: var(--bg-card);
    transition: all var(--transition-base);
}

.pagination .page-link:hover {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .page-item.active .page-link {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
}

.pagination .page-item.disabled .page-link {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Additional dark mode overrides for Bootstrap components */
[data-theme="dark"] .alert {
    color: var(--text-primary);
}

[data-theme="dark"] .alert-info {
    background-color: rgba(23, 162, 184, 0.2);
    border-color: rgba(23, 162, 184, 0.3);
    color: var(--text-primary);
}

[data-theme="dark"] .alert-success {
    background-color: rgba(40, 167, 69, 0.2);
    border-color: rgba(40, 167, 69, 0.3);
    color: var(--text-primary);
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.2);
    border-color: rgba(255, 193, 7, 0.3);
    color: var(--text-primary);
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.3);
    color: var(--text-primary);
}

[data-theme="dark"] .dropdown-menu {
    background-color: var(--bg-card);
    border-color: var(--border-color);
    z-index: 1050;
    box-shadow: var(--shadow-md);
}

.dropdown-menu {
    z-index: 1050;
    box-shadow: var(--shadow-md);
}

[data-theme="dark"] .dropdown-item {
    color: var(--text-primary);
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background-color: rgba(37, 99, 235, 0.2);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
    background-color: var(--bg-card);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-body,
[data-theme="dark"] .modal-footer {
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .close,
[data-theme="dark"] .btn-close {
    filter: invert(1);
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .navbar,
    .btn,
    .theme-toggle {
        display: none;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}