/**
 * POKER MASTERS - Dark Theme CSS
 * Mobile-first responsive design
 */

:root {
    --bg-primary: #0f1115;
    --bg-secondary: #1a1d21;
    --bg-card: #22262b;
    --bg-card-hover: #2a2f35;
    --text-primary: #ffffff;
    --text-secondary: #a0aec0;
    --text-muted: #6c757d;
    --accent-primary: #ffc107;
    --accent-success: #28a745;
    --accent-danger: #dc3545;
    --accent-info: #17a2b8;
    --accent-warning: #fd7e14;
    --border-color: #2d3238;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --radius: 12px;
    --radius-sm: 8px;
    --transition: all 0.2s ease;
}

* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: var(--text-primary);
    background-color: var(--bg-primary);
    -webkit-font-smoothing: antialiased;
}

body {
    padding-bottom: 80px;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #e0a800;
}

/* Container */
.container {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 16px;
}

@media (min-width: 768px) {
    .container {
        max-width: 720px;
    }
}

@media (min-width: 992px) {
    .container {
        max-width: 960px;
    }
}

/* Header */
.app-header {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
    padding: 20px 16px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

.app-header h1 {
    margin: 0;
    font-size: 1.5rem;
    color: var(--accent-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-header .subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    margin-bottom: 16px;
    overflow: hidden;
    transition: var(--transition);
}

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

.card-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-header h2, .card-header h3 {
    margin: 0;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.card-body {
    padding: 16px;
}

.card-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    background: rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-primary);
    color: #000;
}

.btn-primary:hover {
    background: #e0a800;
    color: #000;
}

.btn-success {
    background: var(--accent-success);
    color: #fff;
}

.btn-success:hover {
    background: #218838;
    color: #fff;
}

.btn-danger {
    background: var(--accent-danger);
    color: #fff;
}

.btn-danger:hover {
    background: #c82333;
    color: #fff;
}

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

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

.btn-sm {
    padding: 8px 16px;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 16px 32px;
    font-size: 1.125rem;
}

.btn-block {
    display: flex;
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(255, 193, 7, 0.1);
}

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

select.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%23a0aec0' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10l-5 5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    padding-right: 40px;
}

/* Alerts */
.alert {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alert-success {
    background: rgba(40, 167, 69, 0.15);
    border: 1px solid rgba(40, 167, 69, 0.3);
    color: #5cb85c;
}

.alert-danger {
    background: rgba(220, 53, 69, 0.15);
    border: 1px solid rgba(220, 53, 69, 0.3);
    color: #e74c3c;
}

.alert-warning {
    background: rgba(253, 126, 20, 0.15);
    border: 1px solid rgba(253, 126, 20, 0.3);
    color: #fd7e14;
}

.alert-info {
    background: rgba(23, 162, 184, 0.15);
    border: 1px solid rgba(23, 162, 184, 0.3);
    color: #17a2b8;
}

/* Bottom Navigation */
.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: space-around;
    padding: 8px 0;
    z-index: 1000;
}

.bottom-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    padding: 8px 16px;
    color: var(--text-muted);
    font-size: 0.75rem;
    text-decoration: none;
    transition: var(--transition);
}

.bottom-nav a:hover,
.bottom-nav a.active {
    color: var(--accent-primary);
}

.bottom-nav a i {
    font-size: 1.25rem;
}

/* Ranking List */
.ranking-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.ranking-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

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

.ranking-item:hover {
    background: var(--bg-card-hover);
}

.ranking-position {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 50%;
    font-weight: bold;
    font-size: 0.9rem;
}

.ranking-position.gold {
    background: linear-gradient(135deg, #ffc107, #e0a800);
    color: #000;
}

.ranking-position.silver {
    background: linear-gradient(135deg, #c0c0c0, #a0a0a0);
    color: #000;
}

.ranking-position.bronze {
    background: linear-gradient(135deg, #cd7f32, #b87333);
    color: #fff;
}

.ranking-info {
    flex: 1;
}

.ranking-name {
    font-weight: 600;
    color: var(--text-primary);
}

.ranking-stats {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.ranking-score {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--accent-primary);
}

/* Event Cards */
.event-card {
    cursor: pointer;
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 60px;
    padding: 8px;
    background: var(--accent-primary);
    color: #000;
    border-radius: var(--radius-sm);
    font-weight: bold;
}

.event-date .day {
    font-size: 1.5rem;
    line-height: 1;
}

.event-date .month {
    font-size: 0.75rem;
    text-transform: uppercase;
}

.event-info {
    flex: 1;
}

.event-title {
    font-weight: 600;
    margin-bottom: 4px;
}

.event-meta {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    gap: 16px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.stat-item {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: var(--radius-sm);
    text-align: center;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-primary);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* Badge */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    text-transform: uppercase;
}

.badge-success {
    background: rgba(40, 167, 69, 0.2);
    color: var(--accent-success);
}

.badge-danger {
    background: rgba(220, 53, 69, 0.2);
    color: var(--accent-danger);
}

.badge-warning {
    background: rgba(253, 126, 20, 0.2);
    color: var(--accent-warning);
}

.badge-info {
    background: rgba(23, 162, 184, 0.2);
    color: var(--accent-info);
}

/* Table */
.table-responsive {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
}

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

.table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-muted);
    font-weight: 600;
}

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

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--accent-success) !important; }
.text-danger { color: var(--accent-danger) !important; }
.text-warning { color: var(--accent-warning) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-primary { color: var(--accent-primary) !important; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }

.hidden { display: none !important; }

/* Login Page */
.auth-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 24px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo h1 {
    font-size: 2rem;
    color: var(--accent-primary);
    margin: 0;
}

.auth-logo p {
    color: var(--text-secondary);
    margin-top: 8px;
}

.auth-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    border: 1px solid var(--border-color);
}

/* Toggle Switch */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 28px;
}

.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-secondary);
    border-radius: 28px;
    transition: var(--transition);
}

.toggle-slider:before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background: var(--text-primary);
    border-radius: 50%;
    transition: var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent-success);
}

.toggle-switch input:checked + .toggle-slider:before {
    transform: translateX(22px);
}

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: var(--accent-primary);
    animation: spin 1s linear infinite;
}

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

/* Empty State */
.empty-state {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.empty-state i {
    font-size: 4rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Modal */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-backdrop.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    width: 90%;
    max-width: 400px;
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(20px);
    transition: var(--transition);
}

.modal-backdrop.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

.modal-body {
    padding: 16px;
}

.modal-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

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