/**
 * Frontend Styles
 * 
 * Spezifische Styles für den Radio-Stream-Monitor
 * Stream-Tabelle, Badges, Statistiken
 * 
 * @package RadioMonitor
 * @version 1.0
 */

/* ============================================
   📺 HAUPTCONTAINER
   ============================================ */

.stream-monitor {
    min-height: 100vh;
    padding: var(--spacing-xl) 0;
}

.stream-monitor .container {
    max-width: 1400px;
}

/* ============================================
   📊 HEADER-BEREICH
   ============================================ */

.monitor-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.monitor-title {
    font-size: var(--font-size-4xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.monitor-subtitle {
    font-size: var(--font-size-lg);
    color: var(--text-secondary);
    font-weight: var(--font-weight-normal);
}

/* ============================================
   🔄 NAVIGATION / UMSCHALTER (EINHEITLICH)
   ============================================ */

.monitor-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.monitor-nav-left,
.monitor-nav-right {
    display: flex;
    gap: var(--spacing-sm);
}

/* Button Groups & Day Switcher - EINHEITLICHES DESIGN */
.btn-group,
.day-switcher {
    display: inline-flex;
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-pill);
    padding: var(--spacing-xs);
    border: 1px solid var(--border-color);
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

/* Buttons - EINHEITLICHES DESIGN */
.btn-group .btn,
.day-switcher .btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    border-radius: var(--border-radius-pill);
    padding: 0.5rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    border: none;
    background: transparent;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
}

/* Hover State */
.btn-group .btn:hover:not(.active),
.day-switcher .btn:hover:not(.active) {
    background-color: var(--bg-hover);
    color: var(--text-primary);
    transform: translateY(-2px);
}

/* Active State */
.btn-group .btn.active,
.day-switcher .btn.active {
    background-color: var(--color-primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-sm);
}

/* Badge innerhalb der Buttons */
.btn .badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
}

/* Badge bei aktivem Button */
.btn.active .badge {
    background: var(--text-inverse);
    color: var(--color-primary);
}

/* Badge bei inaktivem Button */
.btn:not(.active) .badge {
    background: var(--text-inverse);
    color: var(--text-primary);
}

/* ============================================
   📋 STREAM-TABELLE
   ============================================ */

.stream-table-wrapper {
    background-color: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.stream-table {
    width: 100%;
    margin-bottom: 0;
    border-radius: 0;
}

.stream-table thead {
    background-color: var(--bg-tertiary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.stream-table thead th {
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: var(--spacing-lg);
    border-bottom: 2px solid var(--border-color);
}

.stream-table tbody td {
    padding: var(--spacing-md);
    vertical-align: middle;
    border-bottom: 1px solid var(--border-color);
}

.stream-table tbody tr {
    transition: all var(--transition-fast);
}

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

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

/* Spalten-spezifisches Styling */
.stream-table .col-name {
    font-weight: var(--font-weight-medium);
    color: var(--text-primary);
    min-width: 200px;
}

.stream-table .col-song {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    max-width: 400px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.stream-table .col-song.offline {
    color: var(--color-danger);
    font-style: italic;
}

.stream-table .col-listeners {
    text-align: center;
    font-weight: var(--font-weight-semibold);
    min-width: 100px;
}

/* ============================================
   🏷️ STREAM-BADGES
   ============================================ */

.listener-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 50px;
    padding: 0.4rem 0.9rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    border-radius: var(--border-radius-pill);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.listener-badge.online {
    background: linear-gradient(135deg, var(--badge-online) 0%, var(--color-success-dark) 100%);
    color: var(--text-inverse);
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.3);
}

.listener-badge.offline {
    background: linear-gradient(135deg, var(--badge-offline) 0%, var(--color-danger-dark) 100%);
    color: var(--text-inverse);
    box-shadow: 0 2px 8px rgba(255, 68, 68, 0.2);
}

.listener-badge.online:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 15px rgba(0, 255, 136, 0.5);
}

/* Online-Indikator (Pulse-Animation) */
.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: var(--spacing-xs);
    flex-shrink: 0;
}

.status-indicator.online {
    background-color: var(--color-success);
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.6);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.status-indicator.offline {
    background-color: var(--color-danger);
    opacity: 0.7;
}

/* Stream Info Wrapper für Mobile */
.stream-info-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;
}

.stream-info-wrapper .stream-name {
    flex: 1;
    min-width: 0;
}

/* Mobile/Desktop Toggle */
.mobile-only {
    display: none;
}

.desktop-only {
    display: inline-flex;
}

/* ============================================
   📊 STATISTIK-FOOTER
   ============================================ */

.stream-table tfoot {
    background-color: var(--bg-tertiary);
    border-top: 2px solid var(--border-color);
}

.stream-table tfoot td {
    padding: var(--spacing-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    border-bottom: none;
}

.stream-table tfoot .label {
    text-align: right;
    padding-right: var(--spacing-md);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.stream-table tfoot .value {
    text-align: center;
}

.total-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    padding: 0.5rem 1.2rem;
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    border-radius: var(--border-radius-pill);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--text-inverse);
    box-shadow: var(--shadow-glow);
}

.total-stations-badge {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-hover) 100%);
    color: var(--text-inverse);
}

/* ============================================
   ⏳ LOADING-STATES
   ============================================ */

.stream-table.updating {
    opacity: 0.6;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.loading-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    border-radius: var(--border-radius-lg);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

/* ============================================
   🔍 DATATABLE-INTEGRATION
   ============================================ */

/* DataTables Wrapper */
.dataTables_wrapper {
    padding: var(--spacing-lg);
}

/* Search Box */
.dataTables_filter {
    float: right;
    margin-bottom: var(--spacing-md);
}

.dataTables_filter label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
}

.dataTables_filter input {
    padding: 0.5rem 1rem;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    transition: all var(--transition-normal);
}

.dataTables_filter input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(0, 170, 255, 0.1);
}

/* Entries Info */
.dataTables_info {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    padding: var(--spacing-md) 0;
}

/* Pagination */
.dataTables_paginate {
    float: right;
    padding: var(--spacing-md) 0;
}

.dataTables_paginate .paginate_button {
    padding: 0.5rem 0.75rem;
    margin-left: var(--spacing-xs);
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dataTables_paginate .paginate_button:hover {
    background-color: var(--bg-hover);
    border-color: var(--color-primary);
}

.dataTables_paginate .paginate_button.current {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--text-inverse);
}

.dataTables_paginate .paginate_button.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
}

/* Sortierung */
.stream-table thead th.sorting,
.stream-table thead th.sorting_asc,
.stream-table thead th.sorting_desc {
    cursor: pointer;
    position: relative;
    padding-right: 30px;
}

.stream-table thead th.sorting::after,
.stream-table thead th.sorting_asc::after,
.stream-table thead th.sorting_desc::after {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    opacity: 0.3;
}

.stream-table thead th.sorting::after {
    content: '⇅';
}

.stream-table thead th.sorting_asc::after {
    content: '↑';
    opacity: 1;
    color: var(--color-primary);
}

.stream-table thead th.sorting_desc::after {
    content: '↓';
    opacity: 1;
    color: var(--color-primary);
}

/* ============================================
   🔔 EMPTY STATE
   ============================================ */

.empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.3;
}

.empty-state-title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.empty-state-text {
    color: var(--text-secondary);
    font-size: var(--font-size-base);
}

/* ============================================
   🎯 QUICK-INFO-CARDS (Optional)
   ============================================ */

.quick-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.stat-card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--color-primary);
}

.stat-card-value {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-card-label {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================================
   ✨ ANIMATIONEN
   ============================================ */

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(0.9);
    }
}

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

/* Fade-In Animation für Tabellenzeilen */
.stream-table tbody tr {
    animation: fadeInUp 0.3s ease-out;
    animation-fill-mode: both;
}

.stream-table tbody tr:nth-child(1) { animation-delay: 0.05s; }
.stream-table tbody tr:nth-child(2) { animation-delay: 0.1s; }
.stream-table tbody tr:nth-child(3) { animation-delay: 0.15s; }
.stream-table tbody tr:nth-child(4) { animation-delay: 0.2s; }
.stream-table tbody tr:nth-child(5) { animation-delay: 0.25s; }
/* Nach 5 Zeilen keine Verzögerung mehr */
.stream-table tbody tr:nth-child(n+6) { animation-delay: 0s; }


/* ============================================
   📊 DATA AGE HEADER - LIVE STATUS
   ============================================ */

.data-age-header {
    text-align: center !important;
    vertical-align: middle !important;
    padding: var(--spacing-lg) !important;
    background: var(--bg-tertiary) !important;
    width: 100% !important;
}

.data-age {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.5rem 1.5rem;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--border-radius-pill);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

/* Live Status (grün) */
.data-age.fresh {
    background: var(--bg-primary);
    color: var(--text-inverse);
    box-shadow: 0 2px 10px rgba(0, 255, 136, 0.3);
}

/* Live Indicator Dot mit Pulse */
.data-age.fresh::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    background-color: #fff;
    border-radius: 50%;
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
    box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

/* Veraltete Daten (orange) */
.data-age.stale {
    background: linear-gradient(135deg, var(--color-warning) 0%, var(--color-warning-dark) 100%);
    color: var(--text-inverse);
    box-shadow: 0 2px 8px rgba(255, 170, 0, 0.3);
}

/* Offline/Fehler (rot) */
.data-age.offline {
    background: linear-gradient(135deg, var(--color-danger) 0%, var(--color-danger-dark) 100%);
    color: var(--text-inverse);
    box-shadow: 0 2px 8px rgba(255, 68, 68, 0.3);
}

/* Loading State */
.data-age.loading {
    background: linear-gradient(135deg, var(--color-info) 0%, #138496 100%);
    color: var(--text-inverse);
}

.data-age.loading::before {
    content: '';
    display: inline-block;
    width: 10px;
    height: 10px;
    border: 2px solid #fff;
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}