/* ============================================================
   文件: style.css
   描述: 全局样式
   ============================================================ */

/* ---------- 重置 & 基础 ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #818cf8;
    --primary-bg: #eef2ff;
    --success: #22c55e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 8px 40px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    color: var(--primary-dark);
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ---------- 头部 ---------- */
.header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 12px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
    background: rgba(255, 255, 255, 0.92);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 20px;
    font-weight: 700;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-nav a {
    padding: 6px 16px;
    border-radius: 8px;
    font-weight: 500;
    font-size: 14px;
    transition: var(--transition);
    color: var(--gray-600);
}

.header-nav a:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.header-nav a.active {
    background: var(--primary-bg);
    color: var(--primary);
}

/* ---------- 统计卡片 ---------- */
.stats-section {
    padding: 24px 0 8px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 16px;
}

.stat-card {
    background: white;
    border-radius: var(--radius);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

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

.stat-icon {
    font-size: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-bg);
    border-radius: 10px;
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-500);
}

/* ---------- 主布局 ---------- */
.main {
    padding: 24px 0 40px;
}

.main-grid {
    display: grid;
    grid-template-columns: 380px 1fr;
    gap: 24px;
}

@media (max-width: 1024px) {
    .main-grid {
        grid-template-columns: 1fr;
    }
}

/* ---------- 卡片 ---------- */
.card {
    background: white;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--gray-100);
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-hover);
}

.card-header {
    padding: 18px 24px;
    border-bottom: 1px solid var(--gray-100);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-subtitle {
    font-size: 13px;
    color: var(--gray-500);
    background: var(--gray-100);
    padding: 2px 12px;
    border-radius: 20px;
}

.card-body {
    padding: 20px 24px;
}

/* ---------- 排行榜 ---------- */
.leaderboard-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: 10px 14px;
    border-radius: 8px;
    transition: var(--transition);
    gap: 12px;
}

.leaderboard-item:hover {
    background: var(--gray-50);
}

.leaderboard-item.highlight {
    background: var(--primary-bg);
    border: 1px solid var(--primary-light);
}

.rank {
    width: 40px;
    text-align: center;
    flex-shrink: 0;
}

.rank-badge {
    font-size: 24px;
}

.rank-number {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-400);
}

.user-info {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.username {
    font-weight: 600;
    font-size: 15px;
}

.user-score {
    text-align: right;
    flex-shrink: 0;
}

.score-value {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.score-label {
    font-size: 12px;
    color: var(--gray-400);
    margin-left: 2px;
}

/* ---------- 用户网格 ---------- */
.users-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 640px) {
    .users-grid {
        grid-template-columns: 1fr;
    }
}

.user-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: 10px;
    border: 1px solid var(--gray-100);
    transition: var(--transition);
}

.user-card:hover {
    border-color: var(--primary-light);
    background: var(--gray-50);
}

.user-card.highlight {
    border-color: var(--primary);
    background: var(--primary-bg);
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.avatar-initial {
    color: white;
    font-weight: 700;
    font-size: 18px;
    text-transform: uppercase;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name-wrapper {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.user-name {
    font-weight: 600;
    font-size: 15px;
}

.user-score-display {
    display: flex;
    align-items: baseline;
    gap: 4px;
    margin-top: 2px;
}

.score-number {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
}

.score-unit {
    font-size: 12px;
    color: var(--gray-400);
}

/* ---------- 名牌 ---------- */
.badge {
    display: inline-flex;
    align-items: center;
    font-size: 12px;
    font-weight: 600;
    padding: 1px 10px;
    border-radius: 20px;
    line-height: 1.6;
    transition: var(--transition);
}

.badge-text {
    border: 2px solid;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(4px);
}

.badge-image {
    padding: 0;
    background: none;
    border: none;
}

.badge-img {
    height: 24px;
    max-width: 60px;
    border-radius: 6px;
    object-fit: contain;
}

.badge-mini {
    font-size: 11px;
    padding: 0 8px;
    border-radius: 12px;
    background: var(--gray-100);
    color: var(--gray-600);
    white-space: nowrap;
}

/* ---------- 表格 ---------- */
.table-wrapper {
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}

.table th {
    text-align: left;
    padding: 10px 12px;
    font-weight: 600;
    color: var(--gray-600);
    border-bottom: 2px solid var(--gray-200);
    background: var(--gray-50);
}

.table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--gray-100);
    vertical-align: middle;
}

.table tbody tr:hover {
    background: var(--gray-50);
}

.score-badge {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 14px;
    background: var(--primary-bg);
    color: var(--primary);
}

/* ---------- 表单 ---------- */
.form-inline .form-row {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
    min-width: 140px;
}

.form-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-700);
}

.form-group input,
.form-group select {
    padding: 8px 14px;
    border: 1.5px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    transition: var(--transition);
    background: white;
    color: var(--gray-800);
    width: 100%;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.form-group input[type="color"] {
    padding: 2px;
    height: 40px;
    width: 60px;
    cursor: pointer;
}

.form-hint {
    font-size: 12px;
    color: var(--gray-400);
    margin-top: 2px;
}

/* ---------- 按钮 ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

.btn-danger {
    background: var(--danger);
    color: white;
}

.btn-danger:hover {
    background: #dc2626;
}

.btn-outline {
    background: transparent;
    color: var(--gray-600);
    border: 1.5px solid var(--gray-300);
}

.btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-400);
}

.btn-sm {
    padding: 4px 14px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
    justify-content: center;
}

/* ---------- 标签导航 ---------- */
.tab-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-bottom: 24px;
    background: white;
    border-radius: var(--radius);
    padding: 6px;
    border: 1px solid var(--gray-200);
}

.tab-btn {
    padding: 8px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    background: transparent;
    color: var(--gray-600);
}

.tab-btn:hover {
    background: var(--gray-100);
    color: var(--gray-800);
}

.tab-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 2px 12px rgba(79, 70, 229, 0.3);
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ---------- 弹窗 ---------- */
.modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
}

.modal-content {
    position: relative;
    background: white;
    border-radius: var(--radius);
    padding: 32px;
    max-width: 440px;
    width: 90%;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.25);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

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

.modal-header h3 {
    font-size: 20px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--gray-400);
    transition: var(--transition);
    line-height: 1;
}

.modal-close:hover {
    color: var(--gray-700);
    transform: rotate(90deg);
}

.modal .form-actions {
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* ---------- 日志 ---------- */
.log-change {
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 6px;
}

.log-change.positive {
    color: var(--success);
    background: #dcfce7;
}

.log-change.negative {
    color: var(--danger);
    background: #fee2e2;
}

.log-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-height: 200px;
    overflow-y: auto;
}

.log-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 12px;
    border-radius: 6px;
    background: var(--gray-50);
    font-size: 13px;
}

.log-time {
    color: var(--gray-500);
    font-size: 12px;
    min-width: 140px;
}

.log-reason {
    color: var(--gray-600);
}

/* ---------- 登录页 ---------- */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #eef2ff, #e0e7ff);
}

.login-container {
    width: 100%;
    max-width: 420px;
    padding: 20px;
}

.login-card {
    background: white;
    border-radius: var(--radius);
    padding: 40px 36px;
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.12);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 12px;
}

.login-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.login-header p {
    color: var(--gray-500);
    font-size: 14px;
    margin-top: 4px;
}

.login-form .form-group {
    margin-bottom: 16px;
}

.login-form .form-group label {
    font-weight: 500;
}

.login-form .form-group input {
    padding: 10px 16px;
    font-size: 15px;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}

.login-footer a {
    color: var(--gray-500);
}

.login-footer a:hover {
    color: var(--primary);
}

/* ---------- 提示 ---------- */
.alert {
    padding: 14px 20px;
    border-radius: 10px;
    margin-bottom: 16px;
    font-weight: 500;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid transparent;
    animation: fadeIn 0.3s ease;
}

.alert-success {
    background: #dcfce7;
    color: #166534;
    border-color: #86efac;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border-color: #fca5a5;
}

.alert-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: inherit;
    opacity: 0.6;
    padding: 0 4px;
}

.alert-close:hover {
    opacity: 1;
}

.alert-dismissible {
    transition: opacity 0.3s ease;
}

.empty-text {
    color: var(--gray-400);
    text-align: center;
    padding: 32px 0;
    font-size: 15px;
}

.text-muted {
    color: var(--gray-500);
    font-size: 14px;
}

hr {
    border: none;
    border-top: 1px solid var(--gray-200);
    margin: 20px 0;
}

/* ---------- 预览区域 ---------- */
.user-score-preview,
.badge-preview {
    padding: 8px 0;
}

.score-info {
    font-size: 15px;
    margin-bottom: 12px;
}

.badge-preview-box {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background: var(--gray-50);
    border-radius: 10px;
    border: 2px dashed var(--gray-300);
    font-size: 18px;
}

/* ---------- 底部 ---------- */
.footer {
    background: white;
    border-top: 1px solid var(--gray-200);
    padding: 16px 0;
    text-align: center;
    font-size: 13px;
    color: var(--gray-500);
    margin-top: 20px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
    .header-inner {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }

    .header-nav {
        justify-content: center;
        flex-wrap: wrap;
    }

    .card-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }

    .form-inline .form-row {
        flex-direction: column;
        align-items: stretch;
    }

    .form-group {
        min-width: 100%;
    }

    .modal-content {
        padding: 24px 20px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .login-card {
        padding: 28px 20px;
    }

    .tab-btn {
        padding: 6px 14px;
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .stat-card {
        padding: 12px 14px;
    }

    .stat-value {
        font-size: 20px;
    }

    .stat-icon {
        font-size: 24px;
        width: 40px;
        height: 40px;
    }
}