/**
 * YouTube Trend Dashboard - K-Maker Style CSS
 * Playboard 구조 + K-Maker 디자인 시스템
 *
 * @package YouTubeTrendDashboard
 */

/* ============================================
   Font Import & Variables
   ============================================ */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    /* PRETENDARD FONT */
    --font-sans: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont, system-ui, Roboto, "Helvetica Neue", "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;

    /* K-Maker Color Palette */
    --slate-50: rgb(248 250 252);
    --slate-100: rgb(241 245 249);
    --slate-200: rgb(226 232 240);
    --slate-300: rgb(203 213 225);
    --slate-400: rgb(148 163 184);
    --slate-500: rgb(100 116 139);
    --slate-600: rgb(71 85 105);
    --slate-700: rgb(51 65 85);
    --slate-800: rgb(30 41 59);
    --slate-900: rgb(15 23 42);

    --indigo-50: rgb(238 242 255);
    --indigo-600: rgb(79 70 229);
    --indigo-700: rgb(67 56 202);

    --emerald-50: rgb(236 253 245);
    --emerald-400: rgb(52 211 153);
    --emerald-600: rgb(5 150 105);

    --red-50: rgb(254 242 242);
    --red-400: rgb(248 113 113);
    --red-600: rgb(220 38 38);
}

/* ============================================
   Global Font Override
   ============================================ */
.yttd-playboard-dashboard,
.yttd-playboard-dashboard *,
.yttd-frontend-wrapper,
.yttd-frontend-wrapper * {
    font-family: var(--font-sans) !important;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

::-webkit-scrollbar-track {
    background: var(--slate-100);
}

::-webkit-scrollbar-thumb {
    background: var(--slate-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--slate-400);
}

/* ============================================
   Main Container
   ============================================ */
.yttd-playboard-dashboard,
.yttd-frontend-wrapper .yttd-playboard-dashboard {
    background: var(--slate-50);
    padding: 2rem 1.5rem;
    margin: 0;
}

.wp-heading-inline {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--slate-900);
    margin-bottom: 0.5rem;
}

.wp-header-end {
    border-color: var(--slate-100);
    margin: 1rem 0 1.5rem;
}

/* ============================================
   Main Tabs Navigation
   ============================================ */
.yttd-main-tabs {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.yttd-main-tab {
    padding: 0.75rem 1.5rem;
    border-radius: 1rem;
    background: white;
    border: 1px solid var(--slate-200);
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    color: var(--slate-400);
    transition: all 0.2s;
    text-decoration: none;
}

.yttd-main-tab:hover {
    color: var(--slate-600);
    border-color: var(--slate-300);
    text-decoration: none;
}

.yttd-main-tab-active {
    background: var(--slate-900);
    color: white;
    border-color: var(--slate-900);
}

/* ============================================
   Playboard Filters
   ============================================ */
.yttd-playboard-filters {
    display: flex;
    gap: 1rem;
    align-items: center;
    padding: 1.5rem;
    background: white;
    border: 1px solid var(--slate-100);
    border-radius: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.yttd-filter-label {
    font-size: 0.75rem;
    color: var(--slate-400);
    margin-right: 0.5rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Filter Dropdown */
.yttd-filter-dropdown {
    position: relative;
}

.yttd-filter-btn {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.625rem 1rem;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: 0.75rem;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    min-width: 180px;
    font-weight: 600;
}

.yttd-filter-btn:hover {
    border-color: var(--slate-400);
    background: white;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

.yttd-filter-value {
    flex: 1;
    color: var(--slate-800);
    font-weight: 700;
}

.yttd-filter-arrow {
    color: var(--slate-400);
    font-size: 0.625rem;
}

.yttd-filter-menu {
    position: absolute;
    top: 100%;
    left: 0;
    z-index: 1000;
    min-width: 240px;
    max-height: 400px;
    overflow-y: auto;
    background: white;
    border: 1px solid var(--slate-100);
    border-radius: 1rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    margin-top: 0.5rem;
}

.yttd-filter-search {
    padding: 1rem;
    border-bottom: 1px solid var(--slate-100);
}

.yttd-filter-search input {
    width: 100%;
    padding: 0.625rem 1rem;
    border: 1px solid var(--slate-200);
    border-radius: 0.75rem;
    font-size: 0.875rem;
    background: var(--slate-50);
    outline: none;
    transition: all 0.2s;
}

.yttd-filter-search input:focus {
    border-color: var(--indigo-600);
    background: white;
}

.yttd-filter-options {
    max-height: 320px;
    overflow-y: auto;
}

.yttd-filter-option {
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--slate-600);
    transition: all 0.2s;
}

.yttd-filter-option:hover {
    background: var(--slate-50);
    color: var(--slate-900);
}

.yttd-filter-option.selected {
    background: var(--indigo-50);
    color: var(--indigo-600);
    font-weight: 700;
}

/* Filter Buttons (Period) */
.yttd-filter-buttons {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.yttd-filter-button-group {
    display: flex;
    gap: 0.25rem;
    background: var(--slate-100);
    padding: 0.25rem;
    border-radius: 0.75rem;
}

.yttd-period-btn {
    padding: 0.5rem 1rem;
    background: transparent;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 700;
    transition: all 0.2s;
    color: var(--slate-400);
}

.yttd-period-btn:hover {
    color: var(--slate-600);
}

.yttd-period-btn-active {
    background: white;
    color: var(--slate-900);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

/* Date Range Display */
.yttd-filter-daterange {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.yttd-daterange-display {
    padding: 0.5rem 1rem;
    background: var(--slate-50);
    border: 1px solid var(--slate-200);
    border-radius: 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--slate-700);
}

/* ============================================
   Content Panels
   ============================================ */
.yttd-playboard-content {
    background: white;
    border-radius: 1.5rem;
    border: 1px solid var(--slate-100);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.yttd-content-panel {
    display: none;
}

.yttd-content-panel-active {
    display: block;
}

/* ============================================
   Results Header
   ============================================ */
.yttd-results-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--slate-100);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1rem;
}

.yttd-results-header h2 {
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--slate-900);
    margin: 0;
}

.yttd-results-info {
    font-size: 0.875rem;
    color: var(--slate-500);
    font-weight: 600;
}

.yttd-results-info span {
    color: var(--indigo-600);
    font-weight: 800;
}

.yttd-loading {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--slate-500);
    font-size: 0.875rem;
    font-weight: 600;
}

.yttd-loading .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid var(--slate-200);
    border-top-color: var(--indigo-600);
    border-radius: 50%;
    animation: yttd-spin 0.8s linear infinite;
}

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

/* ============================================
   Table Container & Table
   ============================================ */
.yttd-table-container {
    overflow-x: auto;
    padding: 0;
}

.yttd-playboard-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.yttd-playboard-table thead th {
    background: var(--slate-50);
    padding: 1rem 1.5rem;
    text-align: left;
    font-weight: 800;
    font-size: 0.75rem;
    color: var(--slate-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--slate-200);
    border-left: none;
    border-right: none;
}

.yttd-playboard-table tbody tr {
    border-bottom: 1px solid var(--slate-100);
    border-left: none;
    border-right: none;
    transition: all 0.2s;
}

.yttd-playboard-table tbody tr:hover {
    background: var(--slate-50);
}

.yttd-playboard-table tbody td {
    padding: 1.25rem 1.5rem;
    color: var(--slate-700);
    font-weight: 500;
    vertical-align: middle;
    border-left: none;
    border-right: none;
}

/* Table Columns */
.col-rank {
    width: 80px;
    text-align: left;
}

.col-rank .yttd-rank-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.col-rank .yttd-rank {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 28px;
    font-weight: 800;
    font-size: 0.875rem;
    color: var(--slate-900);
}

.col-rank .yttd-rank.top-3 {
    color: var(--indigo-600);
}

/* 순위 변동 표시 */
.yttd-rank-change {
    display: inline-flex;
    align-items: center;
    gap: 0.125rem;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
}

.yttd-rank-change.up {
    color: var(--emerald-600);
}

.yttd-rank-change.down {
    color: var(--red-600);
}

.yttd-rank-change.new {
    color: var(--slate-500);
    font-size: 0.6875rem;
}

.yttd-rank-arrow {
    font-size: 0.625rem;
}

.col-channel,
.col-video {
    min-width: 300px;
}

.yttd-channel-info,
.yttd-video-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.yttd-channel-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50% !important; /* 원형 강제 적용 */
    background: var(--slate-100);
    object-fit: cover;
    flex-shrink: 0;
}

.yttd-video-thumbnail {
    width: 64px;
    height: 36px;
    border-radius: 0.375rem;
    background: var(--slate-100);
    object-fit: cover;
    flex-shrink: 0;
}

.yttd-channel-details,
.yttd-video-details {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.yttd-channel-name,
.yttd-video-title {
    font-weight: 700;
    color: var(--slate-900);
    font-size: 0.9375rem;
    line-height: 1.4;
    cursor: pointer;
    transition: color 0.2s;
}

.yttd-channel-name:hover,
.yttd-video-title:hover {
    color: var(--indigo-600);
}

.yttd-channel-meta,
.yttd-video-meta {
    font-size: 0.75rem;
    color: var(--slate-500);
    font-weight: 500;
}

.col-subscribers {
    min-width: 120px;
}

.yttd-subscriber-count {
    font-weight: 800;
    color: var(--slate-900);
    font-size: 1rem;
}

.yttd-delta-label {
    font-size: 0.75rem;
    color: var(--slate-400);
    font-weight: 600;
    margin-top: 0.125rem;
}

.col-delta {
    min-width: 140px;
}

.yttd-delta-value {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.yttd-delta-main {
    font-weight: 800;
    font-size: 0.9375rem;
    color: var(--slate-900);
}

.yttd-delta-sub {
    font-size: 0.75rem;
    color: var(--emerald-600);
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.yttd-delta-sub.negative {
    color: var(--red-400);
}

.yttd-delta-sub::before {
    content: '↑';
}

.yttd-delta-sub.negative::before {
    content: '↓';
}

.col-videos {
    min-width: 150px;
}

.yttd-videos-thumbnails {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.yttd-video-thumb {
    width: 85px;
    height: 48px;
    border-radius: 0.375rem;
    object-fit: cover;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.yttd-video-thumb:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.yttd-video-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.375rem 0.875rem;
    background: var(--slate-100);
    color: var(--slate-700);
    border-radius: 6.25rem;
    font-weight: 700;
    font-size: 0.75rem;
}

/* ============================================
   Pagination
   ============================================ */
.yttd-pagination {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    border-top: 1px solid var(--slate-100);
}

.yttd-page-btn {
    padding: 0.5rem 0.875rem;
    border: 1px solid var(--slate-200);
    background: white;
    color: var(--slate-600);
    border-radius: 0.5rem;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 700;
    transition: all 0.2s;
}

.yttd-page-btn:hover {
    border-color: var(--slate-400);
    color: var(--slate-900);
}

.yttd-page-btn.active {
    background: var(--slate-900);
    color: white;
    border-color: var(--slate-900);
}

.yttd-page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================
   Modal
   ============================================ */
.yttd-modal {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(10px);
    z-index: 100000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.25rem;
}

.yttd-modal-overlay {
    position: absolute;
    inset: 0;
}

.yttd-modal-content {
    position: relative;
    background: white;
    border-radius: 1.875rem;
    max-width: 900px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    z-index: 1;
}

.yttd-modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    background: var(--slate-100);
    color: var(--slate-500);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
    font-size: 1.5rem;
    font-weight: 700;
    transition: all 0.2s;
    z-index: 10;
}

.yttd-modal-close:hover {
    background: var(--slate-200);
    color: var(--slate-900);
}

/* Channel Detail Modal */
.yttd-channel-detail {
    padding: 2rem;
}

.yttd-channel-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--slate-100);
}

.yttd-channel-avatar {
    width: 80px;
    height: 80px;
    border-radius: 1.25rem;
    background: var(--slate-100);
    object-fit: cover;
}

.yttd-channel-info {
    flex: 1;
}

.yttd-channel-info h2 {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--slate-900);
    margin: 0 0 0.75rem 0;
}

.yttd-channel-stats {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.yttd-channel-stats span {
    font-size: 0.875rem;
    color: var(--slate-500);
    font-weight: 600;
}

.yttd-channel-stats strong {
    color: var(--slate-900);
    font-weight: 800;
}

.yttd-btn-favorite {
    padding: 0.75rem 1.5rem;
    background: var(--indigo-600);
    color: white;
    border: none;
    border-radius: 0.75rem;
    font-weight: 700;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.yttd-btn-favorite:hover {
    background: var(--indigo-700);
}

.yttd-channel-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--slate-100);
}

.yttd-channel-tab {
    padding: 0.75rem 1rem;
    border-bottom: 2px solid transparent;
    color: var(--slate-400);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
}

.yttd-channel-tab:hover {
    color: var(--slate-600);
    text-decoration: none;
}

.yttd-channel-tab-active {
    color: var(--slate-900);
    border-bottom-color: var(--slate-900);
}

.yttd-channel-content {
    min-height: 200px;
}

/* Video Detail Modal */
.yttd-video-detail {
    padding: 0;
    max-width: 1000px;
}

.yttd-video-player {
    width: 100%;
    background: black;
    border-radius: 1.875rem 1.875rem 0 0;
    overflow: hidden;
}

.yttd-video-player iframe {
    width: 100%;
    height: 500px;
    border: none;
}

.yttd-video-info {
    padding: 2rem;
}

.yttd-video-info h2 {
    font-size: 1.375rem;
    font-weight: 800;
    color: var(--slate-900);
    margin: 0 0 0.75rem 0;
    line-height: 1.4;
}

.yttd-video-meta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
    color: var(--slate-500);
    font-weight: 600;
}

.yttd-video-stats {
    display: flex;
    gap: 2rem;
    padding: 1.5rem;
    background: var(--slate-50);
    border-radius: 1rem;
    margin-bottom: 1.5rem;
}

.stat-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--slate-400);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-value {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--slate-900);
}

.yttd-video-channel {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--slate-50);
    border-radius: 1rem;
}

.yttd-channel-avatar-small {
    width: 48px;
    height: 48px;
    border-radius: 0.75rem;
    background: var(--slate-100);
    object-fit: cover;
}

.yttd-channel-info-inline h3 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--slate-900);
    margin: 0 0 0.25rem 0;
}

.yttd-channel-info-inline span {
    font-size: 0.875rem;
    color: var(--slate-500);
    font-weight: 600;
}

/* ============================================
   Responsive Design
   ============================================ */
@media screen and (max-width: 768px) {
    .yttd-playboard-dashboard,
    .yttd-frontend-wrapper .yttd-playboard-dashboard {
        padding: 1rem;
    }

    .yttd-playboard-filters {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .yttd-filter-btn {
        width: 100%;
    }

    .yttd-filter-button-group {
        width: 100%;
    }

    .yttd-period-btn {
        flex: 1;
    }

    .yttd-table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .yttd-playboard-table {
        font-size: 0.8125rem;
    }

    .yttd-playboard-table thead th {
        padding: 0.75rem 1rem;
        font-size: 0.6875rem;
    }

    .yttd-playboard-table tbody td {
        padding: 1rem;
    }

    .yttd-modal-content {
        margin: 1rem;
        max-height: calc(100vh - 2rem);
    }

    .yttd-video-player iframe {
        height: 250px;
    }
}

/* ============================================
   WordPress Admin Compatibility
   ============================================ */
.wrap.yttd-playboard-dashboard {
    margin-left: 0;
    margin-right: 20px;
}

/* Frontend Wrapper */
.yttd-frontend-wrapper {
    background: var(--slate-50);
    min-height: 100vh;
    padding: 2rem 0;
}

.yttd-frontend-wrapper .yttd-playboard-dashboard {
    max-width: 1600px;
    margin: 0 auto;
}