/* ============================================================
   周报助手 — 全局样式
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

:root {
    /* 色彩系统 */
    --bg-primary: #0f111a;
    --bg-secondary: #1a1d2e;
    --bg-card: #1e2235;
    --bg-card-hover: #252940;
    --bg-surface: rgba(255, 255, 255, 0.03);

    --text-primary: #e8eaf6;
    --text-secondary: #9da5b4;
    --text-muted: #5c6370;

    --accent-blue: #5b8def;
    --accent-purple: #9d7aed;
    --accent-green: #4ec9b0;
    --accent-orange: #e5a54b;
    --accent-red: #e06c75;
    --accent-pink: #e991d3;

    --gradient-primary: linear-gradient(135deg, #5b8def 0%, #9d7aed 100%);
    --gradient-success: linear-gradient(135deg, #4ec9b0 0%, #5b8def 100%);
    --gradient-warning: linear-gradient(135deg, #e5a54b 0%, #e06c75 100%);

    --border-color: rgba(255, 255, 255, 0.06);
    --border-active: rgba(91, 141, 239, 0.4);

    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 24px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.35);
    --shadow-glow: 0 0 20px rgba(91, 141, 239, 0.15);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;

    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Background decoration */
body::before {
    content: '';
    position: fixed;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background:
        radial-gradient(circle at 20% 20%, rgba(91, 141, 239, 0.06) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(157, 122, 237, 0.05) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(78, 201, 176, 0.03) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
}

/* ============================================================
   Layout
   ============================================================ */

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px 32px;
}

/* ============================================================
   Header / Navigation
   ============================================================ */

.app-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 14px;
}

.app-logo-icon {
    width: 42px;
    height: 42px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    box-shadow: var(--shadow-glow);
}

.app-logo h1 {
    font-size: 22px;
    font-weight: 600;
    letter-spacing: -0.5px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.app-logo .subtitle {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 400;
    margin-top: 2px;
}

.nav-links {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    padding: 4px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.nav-link {
    padding: 8px 20px;
    border-radius: var(--radius-sm);
    text-decoration: none;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    cursor: pointer;
}

.nav-link:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.nav-link.active {
    color: #fff;
    background: var(--gradient-primary);
    box-shadow: var(--shadow-sm);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* ============================================================
   Week Selector
   ============================================================ */

.week-selector {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.week-selector label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.week-selector select {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%239da5b4' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    min-width: 180px;
}

.week-selector select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(91, 141, 239, 0.15);
}

/* ============================================================
   Cards
   ============================================================ */

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: var(--transition);
}

.card:hover {
    border-color: var(--border-active);
    box-shadow: var(--shadow-md);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.card-title {
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-title .icon {
    font-size: 20px;
}

/* ============================================================
   Stats Cards (Dashboard)
   ============================================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.stat-card.blue::before { background: var(--gradient-primary); }
.stat-card.green::before { background: var(--gradient-success); }
.stat-card.orange::before { background: var(--gradient-warning); }
.stat-card.purple::before { background: linear-gradient(135deg, #9d7aed 0%, #e991d3 100%); }

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-label {
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
    margin-bottom: 8px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: -1px;
}

.stat-card.blue .stat-value { color: var(--accent-blue); }
.stat-card.green .stat-value { color: var(--accent-green); }
.stat-card.orange .stat-value { color: var(--accent-orange); }
.stat-card.purple .stat-value { color: var(--accent-purple); }

.stat-extra {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ============================================================
   Member Grid (Dashboard)
   ============================================================ */

.members-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.member-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
}

.member-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-active);
    transform: translateX(4px);
}

.member-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    flex-shrink: 0;
}

.member-avatar.submitted { background: var(--gradient-success); }
.member-avatar.missing { background: var(--gradient-warning); }
.member-avatar.short { background: linear-gradient(135deg, #e5a54b 0%, #e5a54b 100%); }

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

.member-name {
    font-size: 14px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.member-status {
    font-size: 12px;
    margin-top: 2px;
}

.member-status.ok { color: var(--accent-green); }
.member-status.short { color: var(--accent-orange); }
.member-status.missing { color: var(--accent-red); }

.member-chars {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md), var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    color: var(--text-primary);
    background: var(--bg-card);
    border-color: var(--border-active);
}

.btn-danger {
    background: linear-gradient(135deg, #e06c75, #c0392b);
    color: #fff;
}

.btn-success {
    background: var(--gradient-success);
    color: #fff;
}

.btn-sm {
    padding: 6px 14px;
    font-size: 12px;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* ============================================================
   Loading Spinner
   ============================================================ */

.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 17, 26, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-content {
    text-align: center;
}

.loading-content .spinner {
    width: 40px;
    height: 40px;
    border-width: 3px;
    border-top-color: var(--accent-blue);
    margin-bottom: 16px;
}

.loading-content p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* ============================================================
   Toast Notifications
   ============================================================ */

.toast-container {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px 20px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    animation: slideIn 0.3s ease-out;
    min-width: 280px;
}

.toast.success { border-left: 3px solid var(--accent-green); }
.toast.error { border-left: 3px solid var(--accent-red); }
.toast.info { border-left: 3px solid var(--accent-blue); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================================
   Review Page Specifics
   ============================================================ */

.review-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 24px;
    min-height: calc(100vh - 160px);
}

.person-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.person-item {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 14px;
    color: var(--text-secondary);
    border: 1px solid transparent;
}

.person-item:hover {
    background: var(--bg-card);
    color: var(--text-primary);
}

.person-item.active {
    background: var(--bg-card);
    border-color: var(--border-active);
    color: var(--text-primary);
    font-weight: 500;
}

.person-item .score-badge {
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 11px;
    font-weight: 600;
}

.score-badge.high { background: rgba(78, 201, 176, 0.15); color: var(--accent-green); }
.score-badge.mid { background: rgba(229, 165, 75, 0.15); color: var(--accent-orange); }
.score-badge.low { background: rgba(224, 108, 117, 0.15); color: var(--accent-red); }

.review-content {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.report-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.report-panel {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.report-panel-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.report-panel-body {
    padding: 16px;
    font-size: 13px;
    line-height: 1.8;
    color: var(--text-primary);
    max-height: 400px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.issue-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.issue-item {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    padding: 16px 20px;
    border-left: 3px solid var(--accent-orange);
}

.issue-item.severe { border-left-color: var(--accent-red); }
.issue-item.minor { border-left-color: var(--accent-blue); }

.issue-type {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-orange);
    text-transform: uppercase;
    margin-bottom: 6px;
}

.issue-item.severe .issue-type { color: var(--accent-red); }

.issue-desc {
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.issue-suggestion {
    font-size: 13px;
    color: var(--accent-green);
    padding: 8px 12px;
    background: rgba(78, 201, 176, 0.06);
    border-radius: var(--radius-sm);
}

.issue-suggestion::before {
    content: '💡 ';
}

/* ============================================================
   Summary Page Specifics
   ============================================================ */

.summary-layout {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 24px;
}

.summary-editor {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.summary-editor-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.summary-textarea {
    width: 100%;
    min-height: 500px;
    padding: 20px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 14px;
    font-family: 'Noto Sans SC', 'Inter', sans-serif;
    line-height: 2;
    resize: vertical;
}

.summary-textarea:focus {
    outline: none;
}

.summary-textarea::placeholder {
    color: var(--text-muted);
}

.context-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.context-input {
    width: 100%;
    min-height: 120px;
    padding: 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    line-height: 1.6;
    resize: vertical;
    transition: var(--transition);
}

.context-input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.source-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.source-item {
    padding: 10px 14px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    font-size: 13px;
}

.source-item .source-idx {
    font-weight: 600;
    color: var(--accent-blue);
    margin-right: 8px;
}

.source-item .source-names {
    color: var(--accent-purple);
}

.source-item .source-cat {
    display: inline-block;
    margin-left: 8px;
    padding: 1px 8px;
    background: rgba(91, 141, 239, 0.1);
    border-radius: 10px;
    font-size: 11px;
    color: var(--accent-blue);
}

/* ============================================================
   Scrollbar
   ============================================================ */

::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================================
   Responsive
   ============================================================ */

@media (max-width: 1200px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .summary-layout { grid-template-columns: 1fr; }
    .review-layout { grid-template-columns: 200px 1fr; }
}

@media (max-width: 768px) {
    .app-container { padding: 16px; }
    .stats-grid { grid-template-columns: 1fr; }
    .report-comparison { grid-template-columns: 1fr; }
    .review-layout { grid-template-columns: 1fr; }
    .app-header { flex-direction: column; gap: 16px; align-items: flex-start; }
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.empty-state p {
    font-size: 14px;
    max-width: 400px;
    margin: 0 auto;
}