/**
 * Greek TV Guide - Main Stylesheet
 * Πρόγραμμα Τηλεόρασης
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    /* Theme Colors */
    --gtvg-primary: #1e3a5f;
    --gtvg-secondary: #2563eb;
    --gtvg-accent: #f59e0b;
    --gtvg-success: #10b981;
    --gtvg-danger: #ef4444;
    
    /* Channel Brand Colors */
    --gtvg-alpha: #ff6b00;
    --gtvg-ant1: #e4002b;
    --gtvg-mega: #003087;
    --gtvg-skai: #0066cc;
    --gtvg-star: #ffd700;
    --gtvg-open: #00bcd4;
    --gtvg-ert1: #004d99;
    --gtvg-ert2: #0066cc;
    --gtvg-ert3: #3399ff;
    
    /* Neutrals */
    --gtvg-bg: #f8fafc;
    --gtvg-bg-dark: #0f172a;
    --gtvg-card: #ffffff;
    --gtvg-card-dark: #1e293b;
    --gtvg-text: #1e293b;
    --gtvg-text-muted: #64748b;
    --gtvg-border: #e2e8f0;
    
    /* Spacing */
    --gtvg-space-xs: 0.25rem;
    --gtvg-space-sm: 0.5rem;
    --gtvg-space-md: 1rem;
    --gtvg-space-lg: 1.5rem;
    --gtvg-space-xl: 2rem;
    
    /* Typography */
    --gtvg-font: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    --gtvg-font-size: 14px;
    --gtvg-radius: 12px;
    --gtvg-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --gtvg-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Dark Theme */
.gtvg-theme-dark {
    --gtvg-bg: var(--gtvg-bg-dark);
    --gtvg-card: var(--gtvg-card-dark);
    --gtvg-text: #f1f5f9;
    --gtvg-text-muted: #94a3b8;
    --gtvg-border: #334155;
}

/* ============================================
   Base Container
   ============================================ */
.gtvg-container {
    font-family: var(--gtvg-font);
    font-size: var(--gtvg-font-size);
    color: var(--gtvg-text);
    background: var(--gtvg-bg);
    border-radius: var(--gtvg-radius);
    padding: var(--gtvg-space-lg);
    line-height: 1.5;
}

.gtvg-container * {
    box-sizing: border-box;
}

/* ============================================
   Header & Controls
   ============================================ */
.gtvg-header {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gtvg-space-md);
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--gtvg-space-lg);
    padding-bottom: var(--gtvg-space-md);
    border-bottom: 2px solid var(--gtvg-border);
}

.gtvg-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gtvg-primary);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--gtvg-space-sm);
}

.gtvg-title svg {
    width: 28px;
    height: 28px;
    fill: var(--gtvg-accent);
}

.gtvg-controls {
    display: flex;
    flex-wrap: wrap;
    gap: var(--gtvg-space-sm);
    align-items: center;
}

/* Date Tabs */
.gtvg-date-tabs {
    display: flex;
    gap: var(--gtvg-space-xs);
    background: var(--gtvg-card);
    padding: var(--gtvg-space-xs);
    border-radius: 999px;
    box-shadow: var(--gtvg-shadow);
}

.gtvg-date-tab {
    padding: var(--gtvg-space-sm) var(--gtvg-space-md);
    border: none;
    background: transparent;
    border-radius: 999px;
    cursor: pointer;
    font-weight: 500;
    color: var(--gtvg-text-muted);
    transition: all 0.2s ease;
    font-size: 0.875rem;
}

.gtvg-date-tab:hover {
    background: var(--gtvg-bg);
    color: var(--gtvg-text);
}

.gtvg-date-tab.active {
    background: var(--gtvg-secondary);
    color: white;
}

.gtvg-date-tab .day-name {
    display: block;
    font-size: 0.75rem;
    opacity: 0.8;
}

.gtvg-date-tab .day-num {
    display: block;
    font-size: 1rem;
    font-weight: 700;
}

/* Channel Filter */
.gtvg-channel-filter {
    position: relative;
}

.gtvg-channel-select {
    appearance: none;
    background: var(--gtvg-card) url('data:image/svg+xml;charset=UTF-8,<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" fill="none" stroke="%2364748b" stroke-width="2"><path d="m6 9 6 6 6-6"/></svg>') no-repeat right 12px center;
    border: 1px solid var(--gtvg-border);
    border-radius: 999px;
    padding: var(--gtvg-space-sm) var(--gtvg-space-xl) var(--gtvg-space-sm) var(--gtvg-space-md);
    font-size: 0.875rem;
    color: var(--gtvg-text);
    cursor: pointer;
    min-width: 180px;
    box-shadow: var(--gtvg-shadow);
}

.gtvg-channel-select:focus {
    outline: none;
    border-color: var(--gtvg-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

/* Search */
.gtvg-search {
    position: relative;
}

.gtvg-search input {
    background: var(--gtvg-card);
    border: 1px solid var(--gtvg-border);
    border-radius: 999px;
    padding: var(--gtvg-space-sm) var(--gtvg-space-md);
    padding-left: 2.5rem;
    font-size: 0.875rem;
    color: var(--gtvg-text);
    width: 200px;
    transition: all 0.2s ease;
}

.gtvg-search input:focus {
    outline: none;
    border-color: var(--gtvg-secondary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    width: 260px;
}

.gtvg-search svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    stroke: var(--gtvg-text-muted);
}

/* ============================================
   Channel List
   ============================================ */
.gtvg-channels {
    display: grid;
    gap: var(--gtvg-space-md);
}

/* Channel Card */
.gtvg-channel {
    background: var(--gtvg-card);
    border-radius: var(--gtvg-radius);
    box-shadow: var(--gtvg-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

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

.gtvg-channel-header {
    display: flex;
    align-items: center;
    gap: var(--gtvg-space-md);
    padding: var(--gtvg-space-md);
    background: linear-gradient(135deg, var(--channel-color, var(--gtvg-primary)) 0%, rgba(0,0,0,0.1) 100%);
    color: white;
    cursor: pointer;
}

/* Channel Brand Colors */
.gtvg-channel[data-channel*="ALPHA"] { --channel-color: var(--gtvg-alpha); }
.gtvg-channel[data-channel*="ANT1"] { --channel-color: var(--gtvg-ant1); }
.gtvg-channel[data-channel*="MEGA"] { --channel-color: var(--gtvg-mega); }
.gtvg-channel[data-channel*="SKAI"] { --channel-color: var(--gtvg-skai); }
.gtvg-channel[data-channel*="STAR"] { --channel-color: #333; }
.gtvg-channel[data-channel*="OPEN"] { --channel-color: var(--gtvg-open); }
.gtvg-channel[data-channel*="ERT"] { --channel-color: var(--gtvg-ert1); }

.gtvg-channel-logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
    background: white;
    border-radius: 8px;
    padding: 4px;
    flex-shrink: 0;
}

.gtvg-channel-logo-placeholder {
    width: 48px;
    height: 48px;
    background: rgba(255,255,255,0.2);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.75rem;
    flex-shrink: 0;
}

.gtvg-channel-name {
    font-size: 1.125rem;
    font-weight: 600;
    flex: 1;
}

.gtvg-channel-toggle {
    background: rgba(255,255,255,0.2);
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.gtvg-channel-toggle svg {
    width: 16px;
    height: 16px;
    fill: white;
}

.gtvg-channel.expanded .gtvg-channel-toggle {
    transform: rotate(180deg);
}

/* Channel Programs */
.gtvg-channel-programs {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.gtvg-channel.expanded .gtvg-channel-programs {
    max-height: 2000px;
}

/* ============================================
   Program List
   ============================================ */
.gtvg-programs {
    padding: var(--gtvg-space-sm);
}

.gtvg-program {
    display: flex;
    gap: var(--gtvg-space-md);
    padding: var(--gtvg-space-md);
    border-bottom: 1px solid var(--gtvg-border);
    transition: background 0.2s ease;
}

.gtvg-program:last-child {
    border-bottom: none;
}

.gtvg-program:hover {
    background: var(--gtvg-bg);
}

.gtvg-program.now-playing {
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.1) 0%, transparent 100%);
    border-left: 4px solid var(--gtvg-success);
    padding-left: calc(var(--gtvg-space-md) - 4px);
}

.gtvg-program-time {
    flex-shrink: 0;
    width: 60px;
    font-weight: 600;
    color: var(--gtvg-primary);
    font-size: 0.9rem;
}

.gtvg-program-content {
    flex: 1;
    min-width: 0;
}

.gtvg-program-title {
    font-weight: 600;
    color: var(--gtvg-text);
    margin-bottom: var(--gtvg-space-xs);
}

.gtvg-program-desc {
    font-size: 0.875rem;
    color: var(--gtvg-text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.gtvg-program-category {
    display: inline-block;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--gtvg-bg);
    color: var(--gtvg-text-muted);
    border-radius: 999px;
    margin-top: var(--gtvg-space-xs);
}

.gtvg-program-live {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--gtvg-danger);
    color: white;
    border-radius: 999px;
    font-weight: 600;
}

.gtvg-program-live::before {
    content: '';
    width: 6px;
    height: 6px;
    background: white;
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}

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

/* ============================================
   Now Playing Grid
   ============================================ */
.gtvg-now-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--gtvg-space-md);
}

.gtvg-now-card {
    background: var(--gtvg-card);
    border-radius: var(--gtvg-radius);
    box-shadow: var(--gtvg-shadow);
    overflow: hidden;
    transition: all 0.3s ease;
}

.gtvg-now-card:hover {
    box-shadow: var(--gtvg-shadow-lg);
    transform: translateY(-4px);
}

.gtvg-now-card-header {
    display: flex;
    align-items: center;
    gap: var(--gtvg-space-sm);
    padding: var(--gtvg-space-md);
    background: var(--channel-color, var(--gtvg-primary));
    color: white;
}

.gtvg-now-card-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    background: white;
    border-radius: 6px;
    padding: 3px;
}

.gtvg-now-card-channel {
    font-weight: 600;
}

.gtvg-now-card-body {
    padding: var(--gtvg-space-md);
}

.gtvg-now-card-current {
    margin-bottom: var(--gtvg-space-md);
}

.gtvg-now-card-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--gtvg-text-muted);
    margin-bottom: var(--gtvg-space-xs);
}

.gtvg-now-card-title {
    font-weight: 600;
    font-size: 1rem;
    color: var(--gtvg-text);
    margin-bottom: var(--gtvg-space-xs);
}

.gtvg-now-card-time {
    font-size: 0.875rem;
    color: var(--gtvg-text-muted);
}

.gtvg-now-card-progress {
    height: 4px;
    background: var(--gtvg-bg);
    border-radius: 999px;
    margin-top: var(--gtvg-space-sm);
    overflow: hidden;
}

.gtvg-now-card-progress-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--gtvg-success), var(--gtvg-secondary));
    border-radius: 999px;
    transition: width 0.5s ease;
}

.gtvg-now-card-next {
    padding-top: var(--gtvg-space-md);
    border-top: 1px solid var(--gtvg-border);
    opacity: 0.7;
}

/* ============================================
   Widget Styles
   ============================================ */
.gtvg-widget {
    padding: 0;
}

.gtvg-widget-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.gtvg-widget-item {
    display: flex;
    gap: var(--gtvg-space-sm);
    padding: var(--gtvg-space-sm) 0;
    border-bottom: 1px solid var(--gtvg-border);
}

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

.gtvg-widget-logo {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 4px;
    flex-shrink: 0;
}

.gtvg-widget-info {
    flex: 1;
    min-width: 0;
}

.gtvg-widget-channel {
    font-size: 0.75rem;
    color: var(--gtvg-text-muted);
}

.gtvg-widget-title {
    font-weight: 500;
    font-size: 0.875rem;
    color: var(--gtvg-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gtvg-widget-time {
    font-size: 0.75rem;
    color: var(--gtvg-success);
}

/* ============================================
   Loading & Error States
   ============================================ */
.gtvg-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--gtvg-space-xl);
    color: var(--gtvg-text-muted);
}

.gtvg-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--gtvg-border);
    border-top-color: var(--gtvg-secondary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--gtvg-space-md);
}

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

.gtvg-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--gtvg-danger);
    padding: var(--gtvg-space-md);
    border-radius: var(--gtvg-radius);
    text-align: center;
}

.gtvg-empty {
    text-align: center;
    padding: var(--gtvg-space-xl);
    color: var(--gtvg-text-muted);
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
    .gtvg-container {
        padding: var(--gtvg-space-md);
    }
    
    .gtvg-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .gtvg-controls {
        flex-direction: column;
    }
    
    .gtvg-date-tabs {
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
    }
    
    .gtvg-channel-select,
    .gtvg-search input {
        width: 100%;
    }
    
    .gtvg-now-grid {
        grid-template-columns: 1fr;
    }
    
    .gtvg-program {
        flex-direction: column;
        gap: var(--gtvg-space-sm);
    }
    
    .gtvg-program-time {
        width: auto;
    }
}

/* ============================================
   Print Styles
   ============================================ */
@media print {
    .gtvg-container {
        background: white;
        box-shadow: none;
    }
    
    .gtvg-controls,
    .gtvg-channel-toggle {
        display: none;
    }
    
    .gtvg-channel-programs {
        max-height: none !important;
    }
}