:root {
    /* Light Theme (Glassmorphism) */
    --bg: linear-gradient(135deg, #e0eafc 0%, #cfdef3 100%);
    --surface: rgba(255, 255, 255, 0.55);
    --surface-panel: rgba(255, 255, 255, 0.7);
    --surface-hover: rgba(255, 255, 255, 0.85);
    --surface-modal: rgba(255, 255, 255, 0.9);
    --surface-overlay: rgba(0, 0, 0, 0.4);
    
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    
    --text: #1f2937;
    --text-sec: #4b5563;
    --text-inverse: #ffffff;
    --text-tooltip: #1f2937;
    
    --accent-yellow: #d97706; /* Better contrast in light mode */
    --accent-green: #2563eb; /* Non-fluorescent readable green */
    
    --border: rgba(255, 255, 255, 0.5);
    --border-light: rgba(255, 255, 255, 0.8);
    --border-strong: rgba(0, 0, 0, 0.1);
    
    --sidebar-bg: rgba(255, 255, 255, 0.4);
    --sidebar-hover: rgba(255, 255, 255, 0.6);
    
    --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
    --glass-blur: blur(12px);
    
    --tooltip-bg: rgba(255, 255, 255, 1);
    --tooltip-border: rgba(255, 255, 255, 0.8);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
    
    --grade-s: #e0f2f1;
    --grade-s-text: #00695c;
    --grade-a: #e3f2fd;
    --grade-a-text: #1565c0;
    --grade-b: #f3e5f5;
    --grade-b-text: #7b1fa2;
    --grade-c: #fff3e0;
    --grade-c-text: #ef6c00;
    --grade-d: #ffebee;
    --grade-d-text: #c62828;
    
    /* Normalization Tokens */
    --text-xs: 0.75rem;
    --text-sm: 0.85rem;
    --text-base: 1rem;
    --text-lg: 1.15rem;
    --text-xl: 1.3rem;
    --text-2xl: 1.5rem;
    
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-full: 9999px;
}

[data-theme="dark"] {
    /* Dark Theme (Glassmorphism) */
    --bg: linear-gradient(135deg, #0f111a 0%, #1e1e2f 100%);
    --surface: rgba(26, 29, 45, 0.5);
    --surface-panel: rgba(30, 34, 53, 0.6);
    --surface-hover: rgba(40, 45, 70, 0.8);
    --surface-modal: rgba(26, 29, 45, 0.95);
    --surface-overlay: rgba(0, 0, 0, 0.7);
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    
    --text: #e0e0e0;
    --text-tooltip: #e0e0e0;
    
    --accent-yellow: #facc15; /* Bright yellow in dark mode */
    --accent-green: #3b82f6; /* Pleasant green in dark mode */
    --text-inverse: #ffffff;
    --text-tooltip: #e0e0e0;
    
    --border: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-strong: rgba(255, 255, 255, 0.15);
    
    --sidebar-bg: rgba(20, 23, 36, 0.4);
    --sidebar-hover: rgba(34, 38, 58, 0.6);
    
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --glass-blur: blur(12px);
    
    --tooltip-bg: rgba(30, 30, 30, 1);
    --tooltip-border: rgba(255, 255, 255, 0.1);
    
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.5);
    
    --grade-s: #004d40;
    --grade-s-text: #80cbc4;
    --grade-a: #0d47a1;
    --grade-a-text: #90caf9;
    --grade-b: #4a148c;
    --grade-b-text: #ce93d8;
    --grade-c: #e65100;
    --grade-c-text: #ffcc80;
    --grade-d: #b71c1c;
    --grade-d-text: #ef9a9a;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 58%; /* More scale down to mimic zoomed-out dense UI */
    background: var(--bg);
    color: var(--text);
    margin: 0;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout Structure */
.app-layout {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.sidebar {
    width: 240px;
    height: 100%;          /* 부모(app-layout) 높이에 정확히 맞춤 */
    background-color: var(--sidebar-bg);
    display: flex;
    flex-direction: column;
    overflow: hidden;      /* 내부 항목이 넘쳐도 사이드바 자체가 늘어나지 않음 */
    border-right: 1px solid var(--border);
    transition: all 0.3s ease;
}

.sidebar-logo {
    height: 60px;
    padding: 0 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1.2rem;
}

.sidebar-nav {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 20px 10px;
    gap: 5px;
    overflow-y: auto;      /* 메뉴 항목이 많으면 내부 스크롤 */
    min-height: 0;         /* flexbox 자식이 shrink되도록 허용 */
}

.sidebar-nav .tab-btn {
    background: transparent;
    border: none;
    color: var(--text-sec);
    padding: 10px 10px;
    text-align: left;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sidebar-nav .tab-btn:hover {
    background: var(--sidebar-hover);
    color: var(--text);
}

.sidebar-nav .tab-btn.active {
    background: var(--primary);
    color: white;
}

.sidebar-footer {
    padding: 12px 14px;
    border-top: 1px solid var(--border);
    flex-shrink: 0;        /* 위젯이 항상 하단에 고정, 절대 잘리지 않음 */
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--bg);
}

.top-header {
    height: 60px;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 30px;
    position: relative;
    z-index: 105;
    z-index: 1000;
}

.global-search input {
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 16px;
    border-radius: 20px;
    width: 300px;
    outline: none;
}

.global-search input:focus {
    border-color: var(--primary);
}

.page-content {
    flex: 1;
    padding: 30px;
    overflow-y: auto;
}

.tab-content {
    display: none;
    opacity: 0;
}

.tab-content.active {
    display: block;
    animation: fadeInTab 0.3s ease-out forwards;
}

@keyframes fadeInTab {
    0% { opacity: 0; transform: translateY(5px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Buttons */
.primary-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: bold;
    font-size: var(--text-sm);
    transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
}

.primary-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.secondary-btn {
    background: var(--surface-panel);
    border: 1px solid var(--border);
    color: var(--text);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--text-sm);
    transition: background 0.2s, transform 0.2s;
}
.secondary-btn:hover {
    background: var(--surface-hover);
    transform: translateY(-2px);
}

.magic-btn {
    background: linear-gradient(45deg, #4285f4, #aa00ff);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    cursor: pointer;
    font-weight: bold;
}

.critical-btn {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: var(--text-xs);
    font-weight: bold;
    transition: all 0.2s;
}
.critical-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    transform: translateY(-2px);
}

/* Filter & Inputs */
.search-panel,
.filter-bar {
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
}

.input-group {
    display: flex;
    gap: 10px;
    align-items: center;
}

input[type="text"],
input[type="number"],
select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg);
    color: var(--text);
    font-size: var(--text-sm);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}
input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

input[type="text"] {
    flex: 1;
}

.hidden {
    display: none !important;
}

.options-panel {
    margin-top: 10px;
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.row {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}

/* Dash Widgets */
.dash-widget {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative; /* For hide button */
}
.dash-widget:hover {
    box-shadow: var(--shadow-md);
}

/* Dashboard Personalization (Edit Mode) */
.dashboard-edit-mode .dash-widget,
.dashboard-edit-mode #ott-trending-widget {
    border: 2px dashed var(--primary);
    cursor: grab;
    transition: transform 0.2s, border-color 0.2s, background-color 0.2s;
    user-select: none;
    -webkit-user-select: none;
    -webkit-user-drag: element;
}
.dashboard-edit-mode .dash-widget:active,
.dashboard-edit-mode #ott-trending-widget:active {
    cursor: grabbing;
}

/* SortableJS 드래그 시 자식 요소 이벤트 간섭 방지 */
.dashboard-edit-mode .dash-widget > *,
.dashboard-edit-mode #ott-trending-widget > * {
    pointer-events: none;
}
/* 위사 스크롤스크롤 버튼은 클릭 가능하게 유지 */
.dashboard-edit-mode .widget-hide-btn {
    pointer-events: auto !important;
    cursor: pointer !important;
}

/* SortableJS ghost: 드래그 중 원본 위치 표시 */
.sortable-ghost {
    opacity: 0.3;
    background: rgba(99, 102, 241, 0.1);
    border: 2px dashed var(--primary) !important;
}
/* SortableJS chosen: 선택된 위젯 */
.sortable-chosen {
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4) !important;
    transform: scale(1.02);
}
/* SortableJS fallback: forceFallback 모드에서 드래그 중 복사본 */
.sortable-fallback {
    opacity: 0.85;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
    cursor: grabbing !important;
}
/* dragClass: 드래그 중 클론 */
.dashboard-edit-mode .dragging {
    opacity: 0.5;
    background: rgba(99, 102, 241, 0.1);
    border: 2px dashed var(--primary) !important;
}
.dashboard-edit-mode .drag-over {
    border: 2px solid var(--accent-yellow) !important;
}

.widget-hide-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    z-index: 10;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}
.widget-hide-btn:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
}
.dashboard-edit-mode .widget-hide-btn {
    display: flex;
}

.hidden-widget-chip {
    background: var(--bg);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    box-shadow: var(--shadow-sm);
}
.hidden-widget-chip button {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}
.hidden-widget-chip button:hover {
    background: #4f46e5;
    transform: scale(1.1);
}

.widget-title {
    margin: 0;
    font-size: var(--text-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: bold;
    color: var(--text);
}

/* Chips */
.chip {
    padding: 5px 12px;
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--bg);
    color: var(--text);
    cursor: pointer;
    font-size: 0.9rem;
}

.chip.selected {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Results & Tables */
.results-meta {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    color: var(--text-sec);
    font-size: 0.9rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
    font-size: 0.9rem;
}

table th,
table td {
    padding: 10px;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

table th {
    background: var(--surface);
    font-weight: 600;
    color: var(--text);
}

table th.sortable {
    cursor: pointer;
    user-select: none;
}

table th.sortable:hover {
    background: var(--sidebar-hover);
}

.thumb-img {
    width: 80px;
    height: 45px;
    object-fit: cover;
    border-radius: 4px;
}

.ch-thumb {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

/* Grades */
.grade-badge {
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: bold;
    font-size: 0.8rem;
}

.grade-S {
    background: var(--grade-s);
    color: var(--grade-s-text);
}

.grade-A {
    background: var(--grade-a);
    color: var(--grade-a-text);
}

.grade-B {
    background: var(--grade-b);
    color: var(--grade-b-text);
}

.grade-C {
    background: var(--grade-c);
    color: var(--grade-c-text);
}

.grade-D {
    background: var(--grade-d);
    color: var(--grade-d-text);
}

/* Analysis Results */
.analysis-result {
    background: #f0f4c3;
    padding: 20px;
    border-radius: 8px;
    margin-top: 20px;
    white-space: pre-wrap;
    font-family: monospace;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    background: var(--surface);
}

.card img {
    width: 100%;
    height: 140px;
    object-fit: cover;
}

.card-body {
    padding: 10px;
}

.card-title {
    font-weight: bold;
    font-size: 0.95rem;
    margin-bottom: 5px;
    height: 2.8em;
    overflow: hidden;
}

/* Filter Tabs */
.filter-tab {
    background: var(--surface);
    border: none;
    color: var(--text-sec);
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9em;
    margin-right: 5px;
    transition: all 0.2s;
}

.filter-tab.active {
    background: #4facfe;
    color: white;
    font-weight: bold;
}

.filter-tab:hover {
    filter: brightness(1.2);
}

.critical-btn {
    background: #ff6b6b;
    color: white;
}

/* Modal Styles */
.modal {
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--surface-overlay);
    display: flex;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(8px);
    transition: opacity 0.3s;
}

.modal.hidden {
    display: none;
    opacity: 0;
}

.modal-content {
    background-color: var(--surface);
    padding: 2.5rem;
    border: 1px solid var(--border);
    width: 95%;
    max-width: 650px;
    border-radius: 16px;
    position: relative;
    box-shadow: var(--shadow-lg);
    color: var(--text);
}

.close-modal {
    position: absolute;
    right: 1.5rem;
    top: 1rem;
    color: var(--text-sec);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.2s, transform 0.2s;
}

.close-modal:hover {
    color: white;
    transform: scale(1.1);
}

.ch-thumb-link {
    cursor: pointer;
    transition: transform 0.2s, filter 0.2s;
    border-radius: 50%;
    border: 2px solid transparent;
}

.ch-thumb-link:hover {
    transform: scale(1.1);
    filter: brightness(1.2);
    border-color: #ff0000;
}

.channel-detail-title {
    cursor: pointer;
    color: #4facfe;
    transition: color 0.2s;
}

.channel-detail-title:hover {
    color: #00f2fe;
    text-decoration: underline;
}

.modal-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    margin-top: 1.5rem;
}

.modal-card {
    background: #222;
    padding: 1.25rem;
    border-radius: 12px;
    border: 1px solid var(--border);
}

.modal-card-label {
    font-size: 0.75rem;
    color: #aaa;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.modal-card-value {
    font-size: 1.25rem;
    font-weight: 700;
}

.modal-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border);
    padding-bottom: 1.5rem;
}

.modal-h.trend-members {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #1a1a1a;
    border: 1px solid #444;
    border-radius: 8px;
    padding: 10px;
    display: none;
    z-index: 1000;
    width: max-content;
    max-width: 280px;
    flex-wrap: wrap;
    gap: 6px;
    box-shadow: var(--shadow-lg);
    margin-top: 10px;
    pointer-events: none;
    /* Prevent flickering when moving mouse to popover */
}

.trend-group-container:hover .trend-members {
    display: flex;
}

.trend-members span {
    font-size: 0.75rem;
    color: #4ac9ff;
    background: rgba(74, 201, 255, 0.1);
    padding: 3px 8px;
    border-radius: 4px;
    border: 1px solid rgba(74, 201, 255, 0.2);
    white-space: nowrap;
}

.modal-header img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 3px solid #4facfe;
}

/* Trend Keywords Styles */
/* Trends Section Improvements */
.trends-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    padding: 20px;
}

.trend-group-container {
    position: relative;
    display: inline-block;
}

.trend-chip {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 8px 16px;
    border-radius: 24px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    display: flex;
    align-items: center;
    gap: 8px;
    user-select: none;
    box-shadow: var(--shadow-sm);
}

.trend-chip:hover {
    transform: scale(1.05);
    box-shadow: 0 5px 15px rgba(255, 0, 0, 0.15);
    border-color: #ff0000;
}

.trend-score {
    font-size: 0.7em;
    background: #ff0000;
    color: white;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: bold;
}

#tab-trends .search-panel {
    background: var(--surface);
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border);
}

/* ================================================================== */
/* Google Auth Layout & Buttons */
/* ================================================================== */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: radial-gradient(circle at top right, #2a1140, #0a0a0a);
    background-size: cover;
    color: #ffffff;
    padding: 20px;
    box-sizing: border-box;
}

.auth-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 50px 40px;
    border-radius: 24px;
    text-align: center;
    max-width: 420px;
    width: 100%;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    box-sizing: border-box;
}

.auth-card h1 {
    font-size: 2.2rem;
    margin-bottom: 15px;
    font-weight: bold;
    background: linear-gradient(135deg, #ffdd57, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-text-gradient {
    /* 라이트 모드 (기본) 에서는 조금 더 진한 그라데이션 */
    background: linear-gradient(135deg, var(--primary), #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="dark"] .brand-text-gradient {
    /* 다크 모드에서는 밝은 그라데이션 */
    background: linear-gradient(135deg, #ffdd57, #4facfe);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.auth-card p {
    color: #bbb;
    margin-bottom: 25px;
    font-size: 0.95rem;
    line-height: 1.6;
}

.google-login-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    font-weight: 600;
    text-decoration: none;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 1.05rem;
    width: 100%;
    box-sizing: border-box;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.google-login-btn:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2), 0 4px 6px -2px rgba(0, 0, 0, 0.1);
}

.google-login-btn svg {
    width: 24px;
    height: 24px;
}
/* Advanced Filter Bar */
.advanced-filter-bar {
    background: var(--surface);
    padding: 10px 15px;
    border-radius: 8px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}

.pill-select {
    appearance: none;
    background-color: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 8px 30px 8px 16px;
    font-size: 0.9rem;
    color: var(--text);
    cursor: pointer;
    outline: none;
    transition: all 0.2s ease-in-out;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23888888%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 12px top 50%;
    background-size: 10px auto;
}

.pill-select:hover {
    border-color: #ff4d4d;
    box-shadow: 0 0 5px rgba(255, 77, 77, 0.2);
}

.pill-select.active-select {
    background-color: rgba(255, 77, 77, 0.1);
    border-color: #ff4d4d;
    color: #ff4d4d;
    font-weight: 600;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23ff0000%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
}

.pill-select:focus {
    border-color: #ff0000;
    box-shadow: 0 0 0 2px rgba(255, 0, 0, 0.2);
}


/* Rocket Channel Premium Styles */
.rocket-card {
    display: flex;
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
    gap: 25px;
    box-shadow: var(--shadow-md);
    align-items: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.rocket-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), 0 8px 20px rgba(79, 70, 229, 0.15);
}

.rocket-rank {
    font-size: 1.6rem;
    font-weight: 900;
    color: #fff;
    min-width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.3);
}

.rocket-channel-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.rocket-channel-title {
    font-size: 1.4rem;
    font-weight: 800;
    display: flex;
    align-items: center;
    gap: 15px;
    color: var(--text);
    text-decoration: none;
    transition: color 0.2s;
}
.rocket-channel-title:hover {
    color: var(--primary);
}
.rocket-channel-title img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: var(--shadow-sm);
    border: 2px solid var(--bg);
}

.rocket-stats {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.rocket-videos-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    max-width: 55%;
    width: 100%;
}

.rocket-video-card {
    background: var(--bg);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s, box-shadow 0.2s;
    border: 1px solid var(--border);
    cursor: pointer;
}
.rocket-video-card:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-md);
    z-index: 2;
}

.rocket-video-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.rocket-video-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
    padding: 15px 10px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.rocket-video-stat {
    color: white;
    font-size: 0.8rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 4px;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}


/* Advanced Collapsible Channel Filter */
.advanced-filter-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    margin-top: 15px;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.advanced-filter-panel.hidden {
    display: none;
}

.filter-toggle-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 10px 15px;
    border-radius: 8px;
    font-weight: 500;
}

.filter-row-group {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-bottom: 15px;
}

.filter-row-group:last-child {
    margin-bottom: 0;
}

.filter-label {
    min-width: 80px;
    color: var(--text-sec);
    font-size: 0.9rem;
    font-weight: bold;
}

.active-filter-pill {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text);
    box-shadow: var(--shadow-md);
}

.active-filter-pill button {
    background: none;
    border: none;
    color: var(--text-sec);
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    padding: 0;
    display: flex;
    align-items: center;
}

.active-filter-pill button:hover {
    color: #ef4444;
}

/* Advanced Table Styles */
.adv-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 10px;
    background: transparent;
}
.adv-table th {
    color: #a0a0b0;
    font-size: 0.85em;
    font-weight: normal;
    padding: 10px;
    border-bottom: 1px solid var(--border);
    text-align: center;
    white-space: nowrap;
}
.adv-table td {
    background: #141724;
    padding: 15px 10px;
    vertical-align: middle;
    border-top: 1px solid #2a2d3d;
    border-bottom: 1px solid #2a2d3d;
    text-align: center;
}
.adv-table td:first-child {
    border-left: 1px solid #2a2d3d;
    border-radius: 8px 0 0 8px;
    text-align: center;
}
.adv-table td:last-child {
    border-right: 1px solid #2a2d3d;
    border-radius: 0 8px 8px 0;
}
.adv-table tr:hover td {
    background: #1e2235;
}

.ch-info-col {
    display: flex;
    align-items: center;
    gap: 15px;
    text-align: left;
}
.ch-thumb-lg {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
}
.ch-name-block {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.ch-name-block a {
    color: var(--text-inverse);
    font-weight: bold;
    font-size: 1.1em;
    text-decoration: none;
}
.ch-name-block a:hover {
    text-decoration: underline;
}
.ch-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    font-size: 0.7em;
    font-weight: bold;
    margin-right: 5px;
}
.ch-sub-growth {
    color: #3b82f6;
    font-size: 0.8em;
}

.daily-views-col {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.daily-views-val {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--text-inverse);
}
.daily-views-sub {
    color: #ef4444;
    font-size: 0.8em;
}
.daily-views-rev {
    color: #3b82f6;
    font-size: 0.9em;
    font-weight: bold;
    margin-top: 5px;
}

.pop-videos-col {
    display: flex;
    gap: 10px;
    justify-content: center;
}
.pop-video {
    position: relative;
    width: 80px;
    height: 120px;
    border-radius: 6px;
    overflow: hidden;
    background: #000;
}
.pop-video img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.8;
    transition: transform 0.3s ease;
}
.pop-video:hover img {
    transform: scale(1.1);
    opacity: 1;
}
.pop-video-rank {
    position: absolute;
    top: 4px;
    left: 4px;
    background: var(--surface-overlay);
    color: var(--text-inverse);
    font-size: 0.7em;
    padding: 2px 6px;
    border-radius: 4px;
}
.pop-video-views {
    position: absolute;
    bottom: 4px;
    left: 4px;
    right: 4px;
    background: var(--surface-overlay);
    color: var(--text-inverse);
    font-size: 0.65em;
    padding: 3px;
    text-align: center;
    border-radius: 4px;
}

.ch-metric {
    color: #6366f1;
    font-weight: bold;
    font-size: 0.9em;
}
.sortable-hdr {
    cursor: pointer;
    user-select: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.sortable-hdr:hover {
    color: var(--text-inverse);
}

.sub-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}
.sub-tab-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border);
    background: var(--bg);
    color: var(--text-sec);
    border-radius: var(--radius-sm);
    font-weight: bold;
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all 0.2s;
}
.sub-tab-btn:hover {
    background: var(--surface);
    color: var(--text);
}
.sub-tab-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* Sidebar Collapse on PC & Mobile */
.sidebar {
    transition: transform 0.3s ease, margin-left 0.3s ease;
}
.sidebar.collapsed {
    margin-left: -240px;
}

/* Sidebar Overlay for Mobile */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0,0,0,0.5);
    z-index: 999;
}
.sidebar-overlay.active {
    display: block;
}

/* Table Responsive */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* Mobile Responsive Adjustments */
@media (max-width: 768px) {
    body, .app-layout {
        overflow-x: auto !important;
        overflow-y: auto !important;
        -webkit-overflow-scrolling: touch;
    }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        margin-left: 0 !important;
    }
    .sidebar.open {
        transform: translateX(0);
    }
    
    .grid-4-cols {
        grid-template-columns: 1fr 1fr !important;
    }
    .grid-2-cols {
        grid-template-columns: 1fr !important;
    }
    
    .search-panel, .input-group {
        flex-direction: column !important;
        align-items: stretch !important;
    }
    
    .search-panel input, .search-panel button, .pill-select {
        width: 100% !important;
        margin-bottom: 5px;
    }

    .top-header {
        padding: 10px 15px;
    }

    /* Make SEO and dashboard grids stack */
    div[style*="grid-template-columns: repeat(4, 1fr)"] {
        grid-template-columns: 1fr 1fr !important;
    }
    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }
}

/* --- Typography & Badges System --- */
.page-title {
    font-size: 1.6rem;
    font-weight: 800;
    margin: 0 0 8px 0;
    display: flex;
    align-items: center;
    color: var(--text);
    letter-spacing: -0.5px;
}
.page-desc {
    font-size: 0.85rem;
    color: var(--text-sec);
    margin: 0 0 20px 0;
    line-height: 1.5;
}
.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin: 0 0 15px 0;
    display: flex;
    align-items: center;
    color: var(--text);
}
.widget-title {
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-sec);
}
.status-badge {
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 12px;
    vertical-align: middle;
    margin-left: 10px;
    font-weight: 600;
    letter-spacing: normal;
    display: inline-block;
}
.status-badge.renewal {
    background: rgba(99, 102, 241, 0.1);
    color: var(--primary);
    border: 1px solid rgba(99, 102, 241, 0.3);
}
.status-badge.beta {
    background: rgba(234, 179, 8, 0.1);
    color: #eab308;
    border: 1px solid rgba(234, 179, 8, 0.3);
}
.status-badge.coming-soon {
    background: rgba(156, 163, 175, 0.1);
    color: #6b7280;
    border: 1px solid rgba(156, 163, 175, 0.3);
}
/* For dark theme adjustments if needed */
[data-theme="dark"] .status-badge.coming-soon {
    color: #9ca3af;
}

[data-theme="dark"] .analytics-glass-card {
    background: linear-gradient(135deg, rgba(30,41,59,0.7), rgba(15,23,42,0.7));
    border-color: rgba(255, 255, 255, 0.05);
}

/* --- Global Channel Action Menu --- */
#channelActionMenu {
    display: none; /* Hidden by default */
    position: absolute;
    z-index: 9999;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    width: 250px;
    overflow: hidden;
    animation: fadeIn 0.2s ease-out forwards;
}

.action-header {
    font-weight: bold;
    font-size: 0.95rem;
    color: var(--text);
    padding: 10px 15px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 5px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 12px 15px;
    border: none;
    background: transparent;
    color: var(--text);
    font-size: 0.95rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
    border-radius: 6px;
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Mobile adjustments for Action Menu */
@media (max-width: 768px) {
    #channelActionMenu {
        position: fixed;
        bottom: 20px;
        left: 50%;
        transform: translateX(-50%) !important;
        width: 90%;
        max-width: 400px;
        animation: slideUp 0.3s ease-out forwards;
    }
    
    @keyframes slideUp {
        from { opacity: 0; transform: translate(-50%, 20px); }
        to { opacity: 1; transform: translate(-50%, 0); }
    }
}

/* --- Global Channel Analytics Modal --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--surface-overlay);
    z-index: 10000;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(4px);
    padding: 20px;
}

.modal-content {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    box-shadow: var(--shadow-xl);
    animation: modalScale 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes modalScale {
    from { opacity: 0; transform: scale(0.95); }
    to { opacity: 1; transform: scale(1); }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 10;
}

.modal-close-btn {
    background: transparent;
    border: none;
    color: var(--text-sec);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 5px;
    transition: color 0.2s;
}

.modal-close-btn:hover {
    color: var(--primary);
}

.modal-body {
    padding: 25px;
}

/* Unified Tooltip using [data-tooltip] */
[data-tooltip] {
    position: relative;
    cursor: help;
    display: inline-block;
    color: var(--primary);
}
[data-tooltip]::before,
[data-tooltip]::after {
    visibility: hidden;
    opacity: 0;
    position: absolute;
    z-index: 1000;
    transition: opacity 0.2s;
    pointer-events: none;
}
[data-tooltip]::before {
    content: attr(data-tooltip);
    width: max-content;
    max-width: 250px;
    background-color: var(--tooltip-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-tooltip);
    text-align: left;
    border-radius: 8px;
    padding: 8px 12px;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    border: 1px solid var(--tooltip-border);
    box-shadow: var(--shadow-md);
    font-size: 0.75rem;
    line-height: 1.4;
    white-space: pre-wrap;
    font-weight: normal;
}
[data-tooltip]::after {
    content: "";
    bottom: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: var(--border) transparent transparent transparent;
    margin-bottom: -1px;
}
[data-tooltip]:hover::before,
[data-tooltip]:hover::after {
    visibility: visible;
    opacity: 1;
}

/* Monitoring Filter Buttons */
.monitoring-filter-btn, .best-video-filter-btn {
    color: var(--text-sec);
    transition: all 0.2s;
}
.monitoring-filter-btn.active, .best-video-filter-btn.active {
    color: var(--text);
    background: var(--surface-hover) !important;
}

/* Dark mode compatibility for native date pickers */
[data-theme="dark"] input[type="date"] {
    color-scheme: dark;
}


/* ================================================================== */
/* 📱 Comprehensive Mobile Responsiveness Overhaul                    */
/* ================================================================== */
@media (max-width: 768px) {
    /* Global Layout */
    .container {
        flex-direction: column !important;
    }
    
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1000;
        transform: translateX(-100%);
        margin-left: 0 !important;
        width: 260px !important;
        box-shadow: var(--shadow-md);
    }
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
        padding: 10px !important;
    }

    /* Top Navigation Tabs */
    .tab-container {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        justify-content: flex-start !important;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 10px;
        white-space: nowrap;
    }
    .tab-container::-webkit-scrollbar {
        display: none;
    }
    .tab {
        flex-shrink: 0;
    }

    /* Grids to Single Column */
    .grid-4-cols, .grid-3-cols, .grid-2-cols {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    div[style*="grid-template-columns: repeat(4, 1fr)"],
    div[style*="grid-template-columns: 1fr 1fr"] {
        grid-template-columns: 1fr !important;
    }

    /* Modals & Bottom Sheets */
    .modal-content {
        max-width: 95% !important;
        max-height: 85vh !important;
        margin: auto;
        padding: 1.5rem !important; /* 모바일에서 모달 여백 줄임 */
    }
    
    .modal-grid {
        grid-template-columns: 1fr !important; /* 모달 내 2단 그리드를 1단으로 변경 */
        gap: 0.8rem !important;
    }
    
    .modal-header {
        flex-direction: column !important; /* 모달 헤더 세로 정렬 */
        align-items: flex-start !important;
        gap: 1rem !important;
    }
    #channelActionMenu, #videoActionMenu {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        transform: none !important;
        width: 100% !important;
        max-width: 100% !important;
        border-radius: 16px 16px 0 0 !important;
        animation: slideUpSheet 0.3s ease-out forwards !important;
        border: none !important;
        border-top: 1px solid var(--border) !important;
    }
    @keyframes slideUpSheet {
        from { transform: translateY(100%); }
        to { transform: translateY(0); }
    }

    /* Charts & Canvases */
    canvas {
        max-width: 100% !important;
        height: auto !important;
    }
    
    /* Tables to Mobile Cards */
    table.adv-table, .responsive-table {
        display: block;
        width: 100%;
        border: none;
    }
    table.adv-table thead, table.adv-table th, .responsive-table thead, .responsive-table th {
        display: none;
    }
    table.adv-table tbody, .responsive-table tbody {
        display: flex;
        flex-direction: column;
        gap: 15px;
    }
    table.adv-table tr, .responsive-table tr {
        display: block;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: 8px;
        padding: 10px;
    }
    table.adv-table td, .responsive-table td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: 8px 5px !important;
        border-bottom: 1px solid var(--border) !important;
        text-align: right;
    }
    table.adv-table td:last-child, .responsive-table td:last-child {
        border-bottom: none !important;
    }
    table.adv-table td::before, .responsive-table td::before {
        content: attr(data-label);
        font-weight: bold;
        color: var(--text-sec);
        text-align: left;
        flex: 1;
        margin-right: 15px;
    }
    table.adv-table td > div, table.adv-table td > span, table.adv-table td > a,
    .responsive-table td > div, .responsive-table td > span, .responsive-table td > a {
        text-align: right;
    }
    
    /* Monitoring Best Video Vertical Stack */
    div[style*="grid-template-columns: 320px 1fr 220px"] {
        display: flex !important;
        flex-direction: column !important;
    }
    
    /* Responsive forms and inputs */
    .search-panel, .input-group, .sub-tabs {
        flex-direction: column !important;
        align-items: stretch !important;
        gap: 10px;
    }
    .search-panel input, .search-panel button, .pill-select {
        width: 100% !important;
        margin-bottom: 0 !important;
    }
    
    /* Text sizing */
    h1, .page-title { font-size: 1.4rem !important; }
    h2, .section-title { font-size: 1.1rem !important; }
}

/* Hamburger Menu Button (Hidden on Desktop) */
.mobile-menu-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 1.5rem;
    cursor: pointer;
    margin-right: 15px;
    padding: 5px;
}
@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    .page-title {
        display: flex;
        align-items: center;
    }
}

/* Fix for AI Benchmark modal */
.modal-overlay.active {
    display: flex !important;
}

/* Admin Tabs Styling */
.admin-tab-nav {
    display: flex;
    gap: 8px;
    border-bottom: 2px solid var(--border);
    padding-bottom: 8px;
    margin-bottom: 20px;
    overflow-x: auto;
}
.admin-tab-btn {
    padding: 10px 18px;
    font-size: 0.95em;
    font-weight: 600;
    color: var(--text-sec);
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    display: flex;
    align-items: center;
    gap: 6px;
}
.admin-tab-btn:hover {
    background: var(--sidebar-hover);
    color: var(--text);
}
.admin-tab-btn.active {
    background: var(--primary);
    color: var(--text-inverse) !important;
}
.admin-subcontent {
    display: none;
}
.admin-subcontent.active {
    display: block;
}

/* Toast Notification Styles */
#toast-container {
    position: fixed;
    top: 85px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 9999;
    pointer-events: none;
    align-items: center;
}

.toast {
    background: var(--surface);
    color: var(--text);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    padding: 12px 20px;
    min-width: 250px;
    max-width: 400px;
    display: flex;
    align-items: center;
    border-left: 4px solid var(--primary);
    transform: translateY(-100%);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s;
    opacity: 0;
    pointer-events: auto;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-success { border-left-color: #2ecc71; }
.toast-error { border-left-color: #e74c3c; }
.toast-warning { border-left-color: #f1c40f; }

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    line-height: 1.4;
}

.toast i {
    font-size: 1.2rem;
}

.sidebar, .top-header, .stat-card, .chart-container, .panel, .modal-content, .card, .dashboard-card {
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: var(--glass-shadow) !important;
    border: 1px solid var(--border) !important;
}

/* --- UI/UX Refactoring (Compact) --- */
.sticky-header-container {
    position: sticky;
    top: -30px;
    z-index: 100;
    margin-top: -30px;
    margin-left: -30px;
    margin-right: -30px;
    padding-top: 30px;
    padding-left: 30px;
    padding-right: 30px;
    padding-bottom: 10px;
    background: var(--bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    margin-bottom: 15px;
    border-bottom: none;
}

.compact-filter-group {
    padding: 10px !important;
}
.compact-filter-group select,
.compact-filter-group input {
    font-size: 0.9em !important;
    padding: 6px !important;
}
.compact-tab-header {
    margin-bottom: 10px !important;
}
.compact-tab-header h2 {
    font-size: 1.2rem !important;
}

/* OTT Trending Container Responsive Grid */
#ott-trending-container {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 12px;
    padding-bottom: 15px;
    min-height: 100px;
}
@media (max-width: 1200px) {
    #ott-trending-container {
        grid-template-columns: repeat(5, 1fr);
    }
}
@media (max-width: 768px) {
    #ott-trending-container {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 480px) {
    #ott-trending-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Action Menu Popups (Channel & Video) */
.action-menu-popup {
    position: absolute;
    z-index: 10005;
    background: rgba(255, 255, 255, 0.85); /* fallback */
    background: var(--surface);
    backdrop-filter: blur(24px) saturate(180%);
    -webkit-backdrop-filter: blur(24px) saturate(180%);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 12px;
    width: 260px;
    box-shadow: var(--shadow-xl);
    display: flex;
    flex-direction: column;
    gap: 4px;
    transition: opacity 0.2s, transform 0.2s;
}

[data-theme="dark"] .action-menu-popup {
    background: rgba(30, 30, 30, 0.85);
    box-shadow: var(--shadow-xl);
}

.action-menu-popup .action-header {
    font-size: 1rem;
    font-weight: 800;
    color: var(--text);
    padding: 8px 12px 12px 12px;
    margin-bottom: 4px;
    border-bottom: 1px solid var(--border);
    word-break: break-all;
    text-align: center;
}

.action-menu-popup .action-btn {
    background: transparent;
    border: none;
    border-radius: 10px;
    padding: 10px 12px;
    text-align: left;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background 0.15s;
}

.action-menu-popup .action-btn:hover {
    background: rgba(0, 0, 0, 0.04);
}

[data-theme="dark"] .action-menu-popup .action-btn:hover {
    background: rgba(255, 255, 255, 0.08);
}

.action-menu-popup .action-btn .action-icon {
    font-size: 1.3rem;
    line-height: 1;
}

/* ================================================================== */
/* 🚀 Mobile UI/UX Refactoring Overrides                              */
/* ================================================================== */
@media (max-width: 768px) {
    /* 1. Global Font and Spacing */
    html, body {
        font-size: 85% !important;
    }
    .main-content {
        padding: 10px !important;
        margin-left: 0 !important;
    }

    /* 2. Sidebar Slide & Hamburger Menu */
    .sidebar {
        position: fixed !important;
        top: 0;
        left: 0;
        height: 100vh;
        z-index: 1000 !important;
        transform: translateX(-100%) !important;
        transition: transform 0.3s ease-in-out;
    }
    .sidebar.open {
        transform: translateX(0) !important;
    }
    /* Ensure the overlay covers everything properly when active */
    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0,0,0,0.5);
        z-index: 999;
    }
    .sidebar-overlay.active {
        display: block !important;
    }

    /* 3. Grid Layout Stacking */
    .dashboard-grid, .charts-grid, .grid-4-cols, .grid-3-cols, .grid-2-cols {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }

    /* 4. Data Table and Chart Scroll/Height */
    .table-container, .data-table-wrapper, .table-responsive {
        overflow-x: auto !important;
        -webkit-overflow-scrolling: touch;
        white-space: nowrap; /* prevent text wrapping causing vertical overflow */
    }
    .chart-container {
        min-height: 300px !important;
    }
}

/* Shorts Card Grid (10 items per row) */
.shorts-card-grid {
    display: grid;
    grid-template-columns: repeat(10, 1fr);
    gap: 15px;
}
@media (max-width: 1600px) {
    .shorts-card-grid { grid-template-columns: repeat(8, 1fr); }
}
@media (max-width: 1200px) {
    .shorts-card-grid { grid-template-columns: repeat(5, 1fr); }
}
}
@media (max-width: 768px) {
    .shorts-card-grid { grid-template-columns: repeat(3, 1fr); }
}

/* --- Channel Analytics Modal Premium Styles --- */
.analytics-modal-content {
    background: var(--surface-modal);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.analytics-glass-card {
    background: linear-gradient(135deg, rgba(255,255,255,0.4), rgba(255,255,255,0.1));
    border: 1px solid var(--border-light);
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}
.analytics-glass-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md), 0 8px 20px rgba(79, 70, 229, 0.15);
}

.analytics-gradient-text {
    background: linear-gradient(135deg, #4f46e5 0%, #ec4899 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

.analytics-stat-value {
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--text);
    margin-top: 5px;
    line-height: 1.2;
}

.analytics-stat-label {
    font-size: 0.85rem;
    color: var(--text-sec);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
}

/* Progress bar for engagement etc. */
.analytics-progress-bg {
    width: 100%;
    height: 8px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    margin-top: 12px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}
.analytics-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #4f46e5, #ec4899);
    border-radius: 4px;
    width: 0%;
    transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}

.analytics-avatar-wrapper {
    position: relative;
    padding: 4px;
    background: linear-gradient(135deg, #4f46e5, #ec4899);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 4px 15px rgba(79,70,229,0.3);
}
.analytics-avatar-wrapper img {
    border: 3px solid var(--surface);
    width: 110px;
    height: 110px;
    border-radius: 50%;
    object-fit: cover;
    display: block;
}

.analytics-header-gradient {
    background: linear-gradient(90deg, rgba(79,70,229,0.08), rgba(236,72,153,0.05));
    border-bottom: 1px solid var(--border);
}

.analytics-badge {
    background: rgba(79,70,229,0.1);
    color: var(--primary);
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 700;
    border: 1px solid rgba(79,70,229,0.2);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.analytics-video-card {
    display: flex;
    gap: 15px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    align-items: center;
}
.analytics-video-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(79,70,229,0.4);
}
.analytics-video-thumb {
    width: 120px;
    height: 68px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: var(--shadow-sm);
}

/* Animations */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in-up {
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
    opacity: 0;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* Skeleton UI */
@keyframes shimmer {
    0% { background-position: -1200px 0; }
    100% { background-position: 1200px 0; }
}
.skeleton-box {
    background: var(--surface-panel);
    background-image: linear-gradient(90deg, var(--surface-panel) 0%, var(--surface-hover) 50%, var(--surface-panel) 100%);
    background-repeat: no-repeat;
    background-size: 1200px 100%;
    animation: shimmer 1.8s infinite ease-in-out;
    border-radius: 8px;
    min-height: 20px;
    opacity: 0.85;
}
.dark-mode .skeleton-box {
    background-image: linear-gradient(90deg, var(--surface-panel) 0%, var(--surface-hover) 50%, var(--surface-panel) 100%);
}


/* Custom Channel Tags */
.channel-custom-tag {
    box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}
.tag-color-blue { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border: 1px solid rgba(59, 130, 246, 0.3); }
.tag-color-amber { background: rgba(245, 158, 11, 0.15); color: #fbbf24; border: 1px solid rgba(245, 158, 11, 0.3); }
.tag-color-emerald { background: rgba(16, 185, 129, 0.15); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.3); }
.tag-color-purple { background: rgba(139, 92, 246, 0.15); color: #a78bfa; border: 1px solid rgba(139, 92, 246, 0.3); }
.tag-color-rose { background: rgba(244, 63, 94, 0.15); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }

/* Tag Palette Selectable */
.tag-color-option {
    width: 32px; height: 32px; border-radius: 50%; display: inline-block; cursor: pointer; margin-right: 8px; border: 2px solid transparent; transition: 0.2s;
}
.tag-color-option.selected { border-color: var(--primary); transform: scale(1.1); box-shadow: 0 0 8px rgba(0,0,0,0.3); }
.tag-color-option[data-color="blue"] { background: #3b82f6; }
.tag-color-option[data-color="amber"] { background: #f59e0b; }
.tag-color-option[data-color="emerald"] { background: #10b981; }
.tag-color-option[data-color="purple"] { background: #8b5cf6; }
.tag-color-option[data-color="rose"] { background: #f43f5e; }

/* SEO Blog Detail Styles */
.blog-content h2 { margin-top: 30px; margin-bottom: 15px; font-size: 1.5rem; color: var(--text); border-bottom: 2px solid rgba(59,130,246,0.2); padding-bottom: 8px; }
.blog-content h3 { margin-top: 25px; margin-bottom: 12px; font-size: 1.25rem; color: var(--text); }
.blog-content p { margin-bottom: 20px; font-size: 1.05rem; line-height: 1.8; color: var(--text-sec); }
.blog-content ul, .blog-content ol { margin-bottom: 20px; padding-left: 20px; color: var(--text-sec); }
.blog-content li { margin-bottom: 10px; line-height: 1.6; }
.blog-content strong { color: var(--text); font-weight: 700; background: rgba(59,130,246,0.1); padding: 0 4px; border-radius: 4px; }
.blog-content blockquote { border-left: 4px solid var(--primary); padding-left: 15px; margin-left: 0; margin-bottom: 20px; color: var(--text-sec); font-style: italic; background: rgba(0,0,0,0.02); padding: 15px; border-radius: 0 8px 8px 0; }


/* =========================================================
   Community Board: Infinite Scroll, Search & Nested Comments
   ========================================================= */

/* 로딩 스피너 회전 애니메이션 */
@keyframes spin {
    0%   { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* 검색 결과 하이라이팅 */
mark {
    background: rgba(59, 130, 246, 0.25);
    color: var(--primary, #3b82f6);
    border-radius: 2px;
    padding: 0 2px;
}

/* 검색 입력창 포커스 */
#spaSearchInput:focus {
    border-color: var(--primary, #3b82f6) !important;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
    outline: none;
}

/* 대댓글 아이템 */
.reply-item {
    margin-left: 40px;
    border-left: 2px solid var(--border);
    padding: 12px 15px;
    background: rgba(255,255,255,0.02);
    border-radius: 0 8px 8px 0;
}

/* 무한 스크롤 센티널 */
#spa-community-sentinel {
    transition: opacity 0.3s;
    min-height: 60px;
}