/* Modern Grade Dashboard Styles */

:root {
    --dashboard-bg: transparent;
    /* 背景透明，融合到页面 */
    --card-bg: #FFFFFF;
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --text-primary: #2e384d;
    --text-secondary: #6c757d;
    --border-color: #e3e6f0;
    --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 8px 24px rgba(0, 0, 0, 0.12);
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border: 1px solid rgba(255, 255, 255, 0.6);
    /* 渐变色定义 - Streamex风格 */
    --gradient-primary: linear-gradient(135deg, #3498db 0%, #5dade2 100%);
    --gradient-success: linear-gradient(135deg, #f39c12 0%, #f7c65f 100%);
    --gradient-info: linear-gradient(135deg, #2ecc71 0%, #58d68d 100%);
    --gradient-warning: linear-gradient(135deg, #e74c3c 0%, #ff8a65 100%);
}

/* Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.dashboard-animate {
    animation: fadeInUp 0.5s ease-out forwards;
}

/* Layout */
.grade-dashboard-container {
    padding: 20px 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-primary);
    background-color: transparent !important;
    /* 强制去除可能的背景色 */
}

.dashboard-header-section {
    margin-bottom: 24px;
}

.dashboard-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.dashboard-subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Grade Selector */
.grade-selector-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 30px;
}

.grade-pill {
    padding: 10px 20px;
    border-radius: 50px;
    background: #fff;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 8px;
}

.grade-pill:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: #fff;
}

.grade-pill.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(78, 115, 223, 0.3);
}

.grade-pill .badge-count {
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 8px;
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.grade-pill.active .badge-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* KPI Cards Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

/* KPI Card - 纯色背景风格 (类似单学科分析) */
.kpi-card {
    border-radius: 16px;
    padding: 24px;
    position: relative;
    overflow: hidden;
    border: none;
    /* 无边框 */
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
    color: #fff;
    /* 强制白字 */
}

.kpi-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    filter: brightness(1.05);
    /* 悬停微亮 */
}

/* 类型定义 - 纯色渐变背景 */
.kpi-card.primary {
    background: var(--gradient-primary);
}

.kpi-card.info {
    background: var(--gradient-info);
}

.kpi-card.success {
    background: var(--gradient-success);
}

.kpi-card.warning {
    background: var(--gradient-warning);
}

.kpi-content {
    position: relative;
    z-index: 2;
}

/* 标签文字 - 白色半透明 */
.kpi-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    color: rgba(255, 255, 255, 0.85) !important;
}

/* 数值文字 - 纯白 */
.kpi-value {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff !important;
    margin-bottom: 5px;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* 次级文字 - 白色半透明 */
.kpi-subtext {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.75);
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* 背景大图标 - 装饰用 */
.kpi-icon {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 4rem;
    opacity: 0.15;
    /* 稍微提高不透明度 */
    z-index: 1;
    color: #fff;
    /* 图标白色 */
    pointer-events: none;
}

/* Subject Analysis Card */
.modern-card {
    background: #ffffff;
    border-radius: 16px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    margin-bottom: 24px;
    overflow: hidden;
    padding: 18px 20px;
}

.modern-card-header {
    padding: 0 0 12px 0;
    border-bottom: 1px solid #eef2f7;
    background: transparent;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modern-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
}

.modern-card-body {
    padding: 12px 0 0;
    color: var(--text-primary);
}

/* Admin Cockpit (tabs above area only) */
.admin-header-stats {
    margin-top: 16px;
}

.admin-cockpit-shell {
    max-width: 1440px;
    margin: 0 auto;
    padding: 24px;
    border-radius: 16px;
    background: linear-gradient(135deg, #dbeafe 0%, #ecfeff 100%);
    border: 1px solid rgba(30, 58, 138, 0.15);
    box-shadow: 0 18px 36px rgba(30, 58, 138, 0.12);
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.admin-cockpit-topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.admin-cockpit-title-block h2 {
    margin: 0;
    color: #1e3a8a;
    font-size: 34px;
    line-height: 1.2;
    font-weight: 800;
}

.admin-cockpit-filters {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.admin-cockpit-filter,
.admin-cockpit-export {
    border-radius: 999px;
    border: 1px solid rgba(30, 58, 138, 0.18);
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 600;
    min-height: 44px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.admin-cockpit-filter {
    background: rgba(255, 255, 255, 0.72);
    color: #1e3a8a;
    backdrop-filter: blur(8px);
}

.admin-cockpit-export {
    background: linear-gradient(135deg, #2563eb 0%, #1d4ed8 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.3);
}

.admin-cockpit-export:hover,
.admin-cockpit-filter:hover {
    transform: translateY(-1px);
}

.admin-cockpit-kpi-row {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 16px;
}

.admin-cockpit-kpi.glass,
.admin-cockpit-card {
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.65);
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.09);
}

.admin-cockpit-kpi {
    padding: 12px 16px;
}

.admin-cockpit-kpi .kpi-label {
    color: #334155;
    margin-bottom: 4px;
    font-weight: 700;
    font-size: 14px;
}

.admin-cockpit-kpi .kpi-value {
    color: #1e3a8a;
    font-size: 32px;
    line-height: 1.1;
    display: inline-block;
    vertical-align: baseline;
}

.admin-cockpit-kpi .kpi-delta {
    margin-top: 0;
    font-size: 14px;
    font-weight: 700;
    display: inline-block;
    vertical-align: baseline;
    margin-left: 6px;
}

.admin-cockpit-kpi .kpi-delta.up {
    color: #059669;
}

.admin-cockpit-kpi .kpi-delta.down {
    color: #d97706;
}

.admin-cockpit-kpi .kpi-helper {
    color: #64748b;
    font-size: 12px;
    margin-top: 2px;
}

.admin-cockpit-grid.two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.admin-cockpit-card {
    padding: 16px 18px;
}

.admin-cockpit-card .card-title {
    color: #0f172a;
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 12px;
}

.admin-cockpit-radar-svg {
    width: 100%;
    max-width: 440px;
    display: block;
}

.admin-cockpit-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 15px;
}

.admin-cockpit-table th,
.admin-cockpit-table td {
    padding: 10px 8px;
    border-bottom: 1px solid rgba(30, 58, 138, 0.08);
    text-align: left;
}

.admin-cockpit-table thead th {
    color: #0f172a;
    font-weight: 800;
}

.admin-cockpit-table tr.warning {
    background: rgba(251, 191, 36, 0.2);
}

.admin-cockpit-table td.up {
    color: #059669;
    font-weight: 700;
}

.admin-cockpit-table td.down {
    color: #d97706;
    font-weight: 700;
}

.admin-cockpit-strip {
    display: grid;
    gap: 10px;
}

.admin-cockpit-strip-item {
    padding: 10px 12px;
    border-radius: 12px;
    background: rgba(239, 246, 255, 0.92);
    border: 1px solid rgba(30, 58, 138, 0.12);
    display: grid;
    grid-template-columns: 120px repeat(3, 1fr);
    gap: 8px;
    align-items: center;
}

.admin-cockpit-strip-name {
    color: #1e3a8a;
    font-weight: 800;
}

.admin-cockpit-strip-meta {
    color: #334155;
    font-size: 14px;
}

.admin-cockpit-layer-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 14px;
}

.admin-cockpit-layer-mean {
    color: #334155;
    font-size: 16px;
}

.admin-cockpit-layer-mean strong {
    color: #1e3a8a;
    font-size: 26px;
}

.admin-cockpit-layer-tabs {
    display: flex;
    gap: 8px;
}

.admin-cockpit-layer-tab {
    border: 1px solid rgba(30, 58, 138, 0.2);
    border-radius: 999px;
    min-height: 36px;
    padding: 6px 14px;
    background: #f8fbff;
    color: #1e3a8a;
    font-weight: 700;
    cursor: pointer;
}

.admin-cockpit-layer-tab.active {
    background: #1d4ed8;
    color: #fff;
}

.admin-cockpit-layer-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.admin-cockpit-layer-cols h4 {
    margin: 0 0 8px;
    color: #1e293b;
}

.admin-cockpit-layer-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 8px;
}

.admin-cockpit-layer-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    border-radius: 10px;
    background: rgba(239, 246, 255, 0.9);
}

.admin-cockpit-layer-list strong {
    color: #1e3a8a;
}

.admin-cockpit-risk-grid {
    display: grid;
    gap: 14px;
}

.admin-cockpit-risk-grid .sub-title {
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 8px;
}

.admin-cockpit-mini-bars {
    height: 56px;
    display: flex;
    align-items: flex-end;
    gap: 6px;
}

.admin-cockpit-mini-bar {
    flex: 1;
    border-radius: 6px 6px 0 0;
    background: linear-gradient(180deg, #60a5fa 0%, #1d4ed8 100%);
}

.admin-cockpit-risk-grid .sub-text {
    color: #64748b;
    margin-top: 6px;
    font-size: 13px;
}

.admin-cockpit-top3 {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 6px;
}

.admin-cockpit-top3 li {
    display: flex;
    justify-content: space-between;
    padding: 6px 8px;
    border-radius: 8px;
    background: rgba(239, 246, 255, 0.9);
}

.admin-cockpit-top3 strong {
    color: #1e3a8a;
}

.admin-cockpit-quadrant {
    display: grid;
    gap: 8px;
}

.admin-cockpit-quadrant span {
    font-size: 13px;
    color: #334155;
    padding: 8px;
    border-radius: 10px;
    background: rgba(239, 246, 255, 0.9);
}

.admin-cockpit-stack .stack-bar {
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    height: 34px;
}

.admin-cockpit-stack .stack-bar i {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-style: normal;
    font-weight: 700;
    font-size: 12px;
}

.admin-cockpit-stack .stack-bar i.excellent {
    background: #1d4ed8;
}

.admin-cockpit-stack .stack-bar i.good {
    background: #2563eb;
}

.admin-cockpit-stack .stack-bar i.pass {
    background: #60a5fa;
}

.admin-cockpit-stack .stack-bar i.critical {
    background: #f59e0b;
}

.admin-cockpit-stack .stack-bar i.fail {
    background: #fb923c;
}

.admin-cockpit-stack .stack-legend {
    margin-top: 8px;
    color: #475569;
    font-size: 13px;
}

.admin-cockpit-sub-seg-list {
    margin-top: 12px;
    display: grid;
    gap: 8px;
}

.admin-cockpit-sub-seg {
    display: grid;
    grid-template-columns: 54px 1fr;
    align-items: center;
    gap: 8px;
}

.admin-cockpit-sub-seg span {
    color: #1e293b;
    font-size: 13px;
    font-weight: 700;
}

.admin-cockpit-sub-seg .bar {
    height: 10px;
    border-radius: 999px;
    background: #e2e8f0;
    overflow: hidden;
}

.admin-cockpit-sub-seg .bar i {
    display: block;
    height: 100%;
    background: linear-gradient(90deg, #38bdf8 0%, #2563eb 100%);
}

.admin-cockpit-card.action-card {
    border-left: 4px solid #1d4ed8;
}

.admin-cockpit-actions {
    margin: 0;
    padding-left: 20px;
    display: grid;
    gap: 8px;
}

.admin-cockpit-actions li {
    color: #1e3a8a;
    font-weight: 600;
    line-height: 1.6;
}

@media (max-width: 1200px) {
    .admin-cockpit-kpi-row {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .admin-cockpit-grid.two-col,
    .admin-cockpit-layer-cols {
        grid-template-columns: 1fr;
    }

    .admin-cockpit-strip-item {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-cockpit-shell {
        padding: 16px;
    }

    .admin-cockpit-title-block h2 {
        font-size: 24px;
    }

    .admin-cockpit-kpi-row {
        grid-template-columns: 1fr 1fr;
    }
}

/* 教务关键班级卡片 */
.admin-key-classes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 16px;
}

.admin-key-card {
    background: #ffffff;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.admin-key-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: rgba(78, 115, 223, 0.35);
}

.admin-key-card.best {
    background: linear-gradient(135deg, #ffffff 0%, #ecfdf5 100%);
    border-color: rgba(16, 185, 129, 0.35);
}

.admin-key-card.needs-improve {
    background: linear-gradient(135deg, #ffffff 0%, #fff7ed 100%);
    border-color: rgba(245, 158, 11, 0.35);
}

.admin-key-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    background: rgba(78, 115, 223, 0.12);
    color: var(--primary-color);
    flex-shrink: 0;
}

.admin-key-card.best .admin-key-icon {
    background: rgba(16, 185, 129, 0.15);
    color: #0f766e;
}

.admin-key-card.needs-improve .admin-key-icon {
    background: rgba(245, 158, 11, 0.15);
    color: #b45309;
}

.admin-key-meta {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.admin-key-label {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.admin-key-name {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.admin-key-score {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.admin-key-score strong {
    color: var(--text-primary);
}

/* Subject Analysis Grid inside the card */
.subject-analysis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.subject-stat-item {
    background: #fff;
    border-radius: 12px;
    padding: 16px;
    border: 1px solid #eaecf4;
    transition: all 0.2s;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
}

.subject-stat-item:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    border-color: #d1d3e2;
}

.subject-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #f1f3f9;
    display: flex;
    justify-content: space-between;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.stat-label {
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-val {
    font-weight: 700;
    color: var(--text-primary);
}

.stat-val.high {
    color: var(--success-color);
}

.stat-val.low {
    color: var(--danger-color);
}

/* Empty State */
.empty-state-modern {
    text-align: center;
    padding: 60px 20px;
    background: white;
    border-radius: 16px;
    border: 2px dashed #e3e6f0;
}

.empty-icon {
    font-size: 4rem;
    color: #d1d3e2;
    margin-bottom: 20px;
}

.empty-text {
    font-size: 1.2rem;
    color: #858796;
    margin-bottom: 10px;
}