/**
 * Bezpečnostní Demonstrační Aplikace
 * Hlavní styly
 */

/* CSS Proměnné */
:root {
    --primary-color: #00ff88;
    --primary-hover: #00cc6a;
    --secondary-color: #00ccff;
    --danger-color: #ff4444;
    --warning-color: #ffaa00;
    --success-color: #00ff88;
    --info-color: #00ccff;
    
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-input: #1a1a25;
    --bg-hover: #1e1e2a;
    
    --text-primary: #ffffff;
    --text-secondary: #888899;
    --text-muted: #555566;
    
    --border-color: #2a2a3a;
    --border-light: #3a3a4a;
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.5);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

/* Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--border-light);
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: var(--bg-dark);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

.container-fluid {
    padding: 20px;
}

/* Header */
.main-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 15px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Navigation */
.main-nav {
    display: flex;
    gap: 5px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.nav-link:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.nav-link.active {
    background: var(--bg-input);
    color: var(--primary-color);
}

.nav-icon {
    font-size: 1.1rem;
}

/* Status Indicator */
.header-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
}

.status-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-muted);
}

.status-indicator.online {
    background: var(--success-color);
    box-shadow: 0 0 8px var(--success-color);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

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

/* Main Content */
.main-content {
    min-height: calc(100vh - 70px);
    padding: 20px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 20px;
    transition: all var(--transition-normal);
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-title-icon {
    font-size: 1.3rem;
}

.card-body {
    padding: 0;
}

/* Grid */
.grid {
    display: grid;
    gap: 20px;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.grid-auto {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Info Box */
.info-box {
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: 15px;
    margin-bottom: 10px;
}

.info-box:last-child {
    margin-bottom: 0;
}

.info-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 5px;
}

.info-value {
    font-size: 1rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    word-break: break-all;
}

.info-value.highlight {
    color: var(--primary-color);
}

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

.info-value.danger {
    color: var(--danger-color);
}

/* Data Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-input);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.data-table td {
    font-family: var(--font-mono);
    font-size: 0.9rem;
}

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

.data-table tbody tr:last-child td {
    border-bottom: none;
}

/* Tags */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 4px 10px;
    background: var(--bg-input);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.tag-primary {
    background: rgba(0, 255, 136, 0.15);
    color: var(--primary-color);
}

.tag-secondary {
    background: rgba(0, 204, 255, 0.15);
    color: var(--secondary-color);
}

.tag-warning {
    background: rgba(255, 170, 0, 0.15);
    color: var(--warning-color);
}

.tag-danger {
    background: rgba(255, 68, 68, 0.15);
    color: var(--danger-color);
}

/* Progress Bar */
.progress-bar {
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 4px;
    transition: width var(--transition-normal);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: none;
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

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

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

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

.btn-danger:hover {
    background: #cc3333;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 1rem;
}

/* Code Block */
.code-block {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 15px;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.code-inline {
    background: var(--bg-input);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.85em;
}

/* Alert */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.alert-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

.alert-content {
    flex: 1;
}

.alert-title {
    font-weight: 600;
    margin-bottom: 5px;
}

.alert-message {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.alert-info {
    background: rgba(0, 204, 255, 0.1);
    border: 1px solid rgba(0, 204, 255, 0.3);
}

.alert-info .alert-icon {
    color: var(--secondary-color);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border: 1px solid rgba(255, 170, 0, 0.3);
}

.alert-warning .alert-icon {
    color: var(--warning-color);
}

.alert-danger {
    background: rgba(255, 68, 68, 0.1);
    border: 1px solid rgba(255, 68, 68, 0.3);
}

.alert-danger .alert-icon {
    color: var(--danger-color);
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border: 1px solid rgba(0, 255, 136, 0.3);
}

.alert-success .alert-icon {
    color: var(--success-color);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.stat-card {
    background: var(--bg-input);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 5px;
}

/* Stat Card Variants */
.stat-card-warning {
    border: 1px solid var(--warning-color);
    background: linear-gradient(135deg, rgba(255, 170, 0, 0.1), transparent);
}

.stat-card-warning .stat-value {
    background: linear-gradient(135deg, var(--warning-color), #ff8800);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card-info {
    border: 1px solid var(--info-color);
    background: linear-gradient(135deg, rgba(0, 204, 255, 0.1), transparent);
}

.stat-card-info .stat-value {
    background: linear-gradient(135deg, var(--info-color), #0088ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card-danger {
    border: 1px solid var(--danger-color);
    background: linear-gradient(135deg, rgba(255, 68, 68, 0.1), transparent);
}

.stat-card-danger .stat-value {
    background: linear-gradient(135deg, var(--danger-color), #ff0000);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Fingerprint Display */
.fingerprint-display {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--bg-input);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
}

.fingerprint-hash {
    flex: 1;
    font-size: 0.9rem;
    color: var(--primary-color);
    word-break: break-all;
}

.fingerprint-copy {
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.fingerprint-copy:hover {
    background: var(--bg-hover);
}

/* Section */
.section {
    margin-bottom: 30px;
}

.section-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title-icon {
    font-size: 1.4rem;
}

/* Divider */
.divider {
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    padding: 0 6px;
    background: var(--danger-color);
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

.tooltip:hover::after {
    opacity: 1;
    visibility: visible;
}

/* Loading */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 15px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.empty-state-message {
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1200px) {
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 992px) {
    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .header-content {
        flex-wrap: wrap;
    }
    
    .main-nav {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: 10px;
    }
}

@media (max-width: 768px) {
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .main-nav {
        flex-wrap: wrap;
        gap: 5px;
    }
    
    .nav-link {
        padding: 8px 12px;
        font-size: 0.8rem;
    }
    
    .header-status {
        display: none;
    }
    
    .card {
        padding: 15px;
    }
    
    .data-table {
        display: block;
        overflow-x: auto;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.align-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.gap-3 { gap: 1.5rem; }

.hidden { display: none; }
.visible { display: block; }

/* Animations */
.fade-in {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.slide-up {
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Print Styles */
@media print {
    .main-header,
    .loading-screen,
    .btn {
        display: none;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}