/* Laserball Turnajový Systém - Moderní CSS */

:root {
    /* Světlý režim */
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #868e96;
    
    --border-color: #dee2e6;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --gradient-danger: linear-gradient(135deg, #ff416c 0%, #ff4b2b 100%);
}

[data-theme="dark"] {
    /* Tmavý režim */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #888888;
    
    --border-color: #404040;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.5);
}

/* Základní styly */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    margin: 0;
    padding: 0;
    transition: all 0.3s ease;
}

/* Navigace */
.navbar {
    background: var(--gradient-primary) !important;
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: white !important;
}

.navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    border-radius: 0.5rem;
    margin: 0 0.25rem;
    padding: 0.5rem 1rem !important;
}

.navbar-nav .nav-link:hover {
    color: white !important;
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    color: white !important;
}

/* Tlačítko pro přepínání režimu */
.theme-toggle {
    background: none;
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    cursor: pointer;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: rotate(180deg);
}

/* Kontejnery */
.container-fluid {
    padding: 2rem 1rem;
}

.main-content {
    background-color: var(--bg-primary);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

/* Karty */
.card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    overflow: hidden;
}

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

.card-header {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
    font-weight: 600;
    padding: 1.25rem 1.5rem;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
}

/* Tlačítka */
.btn {
    border-radius: 0.75rem;
    font-weight: 500;
    padding: 0.75rem 1.5rem;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.btn:hover::before {
    left: 100%;
}

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

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

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

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* Formuláře */
.form-control {
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.form-select {
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 0.75rem;
    color: var(--text-primary);
}

.form-check-input {
    border-radius: 0.5rem;
    border: 2px solid var(--border-color);
}

.form-check-input:checked {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Tabulky */
.table {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.table thead th {
    background: var(--gradient-primary);
    color: white;
    border: none;
    font-weight: 600;
    padding: 1rem;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.table tbody tr:hover {
    background-color: var(--bg-secondary);
    transform: scale(1.01);
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
    border: none;
}

/* Badges */
.badge {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.5rem 0.75rem;
}

.badge-success {
    background: var(--gradient-success);
}

.badge-danger {
    background: var(--gradient-danger);
}

.badge-warning {
    background: var(--warning-color);
    color: #212529;
}

.badge-info {
    background: var(--info-color);
}

/* Alerty */
.alert {
    border-radius: 1rem;
    border: none;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
}

.alert-success {
    background: linear-gradient(135deg, rgba(40, 167, 69, 0.1) 0%, rgba(40, 167, 69, 0.05) 100%);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(220, 53, 69, 0.1) 0%, rgba(220, 53, 69, 0.05) 100%);
    color: var(--danger-color);
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1) 0%, rgba(255, 193, 7, 0.05) 100%);
    color: #856404;
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background: linear-gradient(135deg, rgba(23, 162, 184, 0.1) 0%, rgba(23, 162, 184, 0.05) 100%);
    color: var(--info-color);
    border-left: 4px solid var(--info-color);
}

/* Modály */
.modal-content {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
    border-radius: 1rem 1rem 0 0;
}

.modal-footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-radius: 0 0 1rem 1rem;
}

/* Statistiky */
.stats-card {
    background: var(--gradient-primary);
    color: white;
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-5px) scale(1.02);
}

.stats-number {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stats-label {
    font-size: 0.875rem;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Turnajové barvy */
.team-color-left {
    background-color: #ff4757;
    color: white;
}

.team-color-right {
    background-color: #3742fa;
    color: white;
}

/* Zápasy */
.match-card {
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.match-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: var(--gradient-primary);
}

.match-card:hover {
    transform: translateX(5px);
    box-shadow: var(--shadow-lg);
}

.match-number {
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.team-name {
    font-weight: 600;
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.match-score {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.match-time {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responzivní design */
@media (max-width: 768px) {
    .container-fluid {
        padding: 1rem 0.5rem;
    }
    
    .main-content {
        padding: 1rem;
        border-radius: 0.5rem;
    }
    
    .card {
        border-radius: 0.5rem;
    }
    
    .btn {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .stats-number {
        font-size: 2rem;
    }
    
    .match-card {
        padding: 1rem;
    }
    
    .navbar-nav {
        text-align: center;
    }
}

/* Animace */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.slide-in {
    animation: slideIn 0.6s ease-out;
}

/* Loading spinner */
.spinner {
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Utility třídy */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.shadow-custom {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}