/* 睿航招生报名系统 - 全局样式 */

/* ===== 基础样式 ===== */
:root {
    --rh-primary: #0d6efd;
    --rh-primary-dark: #0b5ed7;
    --rh-success: #198754;
    --rh-bg: #f4f6f9;
}

body {
    background: var(--rh-bg);
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
    color: #333;
}

/* ===== 导航栏 ===== */
.navbar-brand {
    font-size: 1.2rem;
    letter-spacing: 1px;
}

/* ===== 英雄区域 ===== */
.hero-section {
    background: linear-gradient(135deg, #0d6efd 0%, #6610f2 100%) !important;
}

/* ===== 卡片 ===== */
.card {
    transition: transform 0.2s, box-shadow 0.2s;
    border-radius: 10px;
}
.card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1) !important;
}

/* ===== 统计数字 ===== */
.stats-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--rh-primary);
}

/* ===== 表格优化 ===== */
.table th {
    font-weight: 600;
    background: #f8f9fa;
    border-top: none;
    white-space: nowrap;
}
.table-responsive {
    border-radius: 8px;
    overflow: hidden;
}

/* ===== 表单 ===== */
.form-label {
    font-weight: 500;
}
.form-control:focus,
.form-select:focus {
    border-color: var(--rh-primary);
    box-shadow: 0 0 0 0.2rem rgba(13,110,253,0.15);
}

/* ===== 按钮 ===== */
.btn-primary {
    background: var(--rh-primary);
    border-color: var(--rh-primary);
}
.btn-primary:hover {
    background: var(--rh-primary-dark);
    border-color: var(--rh-primary-dark);
}

/* ===== 徽章 ===== */
.badge-status {
    font-size: 0.8em;
    padding: 0.35em 0.65em;
}

/* ===== 相册 ===== */
.photo-grid img {
    transition: opacity 0.2s;
    cursor: pointer;
}
.photo-grid img:hover {
    opacity: 0.85;
}

/* ===== 登录页 ===== */
.login-card {
    border-radius: 12px;
}

/* ===== 打印样式 ===== */
@media print {
    .navbar, .btn, .no-print {
        display: none !important;
    }
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
}

/* ===== 上传拖拽区 ===== */
.upload-drop-zone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 40px;
    text-align: center;
    color: #999;
    transition: border-color 0.2s, background 0.2s;
    cursor: pointer;
}
.upload-drop-zone:hover,
.upload-drop-zone.dragover {
    border-color: var(--rh-primary);
    background: rgba(13,110,253,0.05);
    color: var(--rh-primary);
}

/* ===== 导航进度条 ===== */
.nav-pills .nav-link.active {
    background: var(--rh-primary);
}
.step-indicator {
    display: flex;
    gap: 8px;
    align-items: center;
}
.step-dot {
    width: 32px; height: 32px;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 0.85rem;
    font-weight: 600;
}
.step-dot.active { background: var(--rh-primary); color: #fff; }
.step-dot.done { background: var(--rh-success); color: #fff; }
.step-dot.pending { background: #e9ecef; color: #999; }

/* ===== 学生信息卡片 ===== */
.student-card {
    border-left: 4px solid var(--rh-primary);
}
.student-card.status-pass {
    border-left-color: var(--rh-success);
}
.student-card.status-fail {
    border-left-color: #dc3545;
}
.student-card.status-pending {
    border-left-color: #ffc107;
}

/* ==========================================================
   响应式适配 - 手机端 & 平板端
   ========================================================== */

/* ===== 超小屏幕 (< 576px, 手机竖屏) ===== */
@media (max-width: 575.98px) {
    /* 导航栏 */
    .navbar-brand {
        font-size: 1rem;
    }
    .navbar .container {
        padding: 0 8px;
    }

    /* 主体内容减少内边距 */
    main.container {
        padding: 0 10px;
        margin-top: 12px !important;
    }

    /* 英雄区域 */
    .hero-section {
        padding: 1.5rem 1rem !important;
    }
    .hero-section h1,
    .hero-section .display-5 {
        font-size: 1.3rem !important;
    }
    .hero-section .lead {
        font-size: 0.9rem;
    }
    .hero-section .btn-lg {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }

    /* 统计数字块横排 */
    .hero-section .d-flex.gap-3 {
        gap: 8px !important;
    }
    .hero-section .bg-white.bg-opacity-25 {
        min-width: 70px !important;
        padding: 8px !important;
    }
    .hero-section .fs-2 {
        font-size: 1.2rem !important;
    }

    /* 页面标题 */
    h4 {
        font-size: 1.1rem;
    }
    h3 {
        font-size: 1.15rem;
    }
    h6 {
        font-size: 0.95rem;
    }

    /* 卡片 */
    .card {
        border-radius: 8px !important;
    }
    .card-body {
        padding: 0.75rem;
    }
    .card-header {
        padding: 0.6rem 0.75rem;
    }

    /* 表格 - 手机端优化 */
    .table-responsive {
        margin: 0 -10px;
        padding: 0 5px;
    }
    .table {
        font-size: 0.8rem;
        min-width: 600px;
    }
    .table th, .table td {
        padding: 0.35rem 0.3rem;
        white-space: nowrap;
    }
    .table .small {
        font-size: 0.75rem;
    }

    /* 表单 */
    .form-control, .form-select {
        font-size: 0.9rem;
    }
    .mb-3 {
        margin-bottom: 0.6rem !important;
    }
    .form-label {
        font-size: 0.85rem;
        margin-bottom: 0.2rem;
    }

    /* 按钮 */
    .btn-sm {
        font-size: 0.75rem;
        padding: 0.2rem 0.4rem;
    }

    /* Modal弹窗 */
    .modal-dialog {
        margin: 8px;
    }
    .modal-body {
        padding: 0.75rem;
    }

    /* 筛选栏 */
    .row.g-2.mb-3 {
        row-gap: 6px;
    }
    .col-md-2, .col-md-3 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    /* 底部 */
    footer .container {
        padding: 0 10px;
    }
    footer .col-md-6, footer .col-md-3 {
        margin-bottom: 1rem;
    }

    /* 录入页两列变单列 */
    .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    /* 批量操作栏 */
    .card.bg-light .d-flex.flex-wrap {
        gap: 6px !important;
    }
    .card.bg-light .btn-sm {
        font-size: 0.72rem;
        padding: 0.15rem 0.35rem;
    }
}

/* ===== 平板端 (576px - 991.98px) ===== */
@media (min-width: 576px) and (max-width: 991.98px) {
    /* 主体内容 */
    main.container {
        padding: 0 15px;
    }

    /* 英雄区域 */
    .hero-section {
        padding: 2rem 1.5rem !important;
    }
    .hero-section h1,
    .hero-section .display-5 {
        font-size: 1.6rem !important;
    }

    /* 表格 */
    .table {
        font-size: 0.85rem;
    }

    /* 卡片统计 */
    .hero-section .bg-white.bg-opacity-25 {
        min-width: 85px !important;
    }

    /* 录入页保持两列但紧凑 */
    .col-md-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* ===== 平板横屏及以上 (≥ 768px) 恢复双列录入 ===== */
@media (min-width: 768px) {
    .col-md-6 {
        flex: 0 0 50%;
        max-width: 50%;
    }
}

/* ===== 大屏微调 (≥ 992px) ===== */
@media (min-width: 992px) {
    .col-md-2 {
        flex: 0 0 16.6667%;
        max-width: 16.6667%;
    }
    .col-md-3 {
        flex: 0 0 25%;
        max-width: 25%;
    }
}

/* ===== 全尺寸通用：表格手机端卡片式优化 ===== */
@media (max-width: 767.98px) {
    /* 学员管理表格手机端 - 横向可滚动但更友好 */
    .table-responsive {
        -webkit-overflow-scrolling: touch;
        border: 1px solid #e9ecef;
    }
    .table-responsive::-webkit-scrollbar {
        height: 4px;
    }
    .table-responsive::-webkit-scrollbar-thumb {
        background: #ccc;
        border-radius: 2px;
    }

    /* 统计卡片网格 */
    .col-md-3.col-6 {
        padding: 0 6px;
    }
    .col-md-3.col-6 .card {
        padding: 0.6rem !important;
    }
    .col-md-3.col-6 h3 {
        font-size: 1.3rem;
    }

    /* 工作台布局 */
    .col-md-8, .col-md-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
    .col-md-4 {
        margin-top: 1rem;
    }

    /* 开班/结业/课堂风采 - 手机端2列 */
    .col-12.col-sm-6.col-lg-4 {
        flex: 0 0 50%;
        max-width: 50%;
    }

    /* 管理后台两列面板 */
    .col-md-6.mb-4,
    .col-lg-6.mb-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    /* 学员表格操作列固定右侧 */
    .rh-student-table {
        position: relative;
    }
    .rh-student-table .rh-actions-col {
        position: sticky;
        right: 0;
        z-index: 10;
        background: #fff;
        box-shadow: -2px 0 4px rgba(0,0,0,0.06);
        min-width: 90px;
    }
    .rh-student-table thead .rh-actions-col {
        background: #f8f9fa;
    }
    .rh-btn-action {
        white-space: nowrap;
        padding: 0.2rem 0.4rem;
        font-size: 0.8rem;
    }
}

/* ===== 超小屏幕 (< 375px) 额外压缩 ===== */
@media (max-width: 374.98px) {
    .hero-section .d-flex.gap-3 {
        flex-direction: column;
        align-items: center;
        gap: 6px !important;
    }
    .hero-section .bg-white.bg-opacity-25 {
        width: 100%;
        max-width: 200px;
    }

    /* 开班/结业/课堂风采卡片单列 */
    .col-12.col-sm-6.col-lg-4 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* ===== 平板竖屏 (768px - 1024px) ===== */
@media (min-width: 768px) and (max-width: 1024px) {
    /* 开班/结业/课堂风采保持3列 */
    .col-12.col-sm-6.col-lg-4 {
        flex: 0 0 33.3333%;
        max-width: 33.3333%;
    }

    /* 统计卡片保持4列但紧凑 */
    .col-md-3.col-6,
    .col-lg-3 {
        flex: 0 0 25%;
        max-width: 25%;
    }
}

/* ===== 后台管理手机端 - 操作按钮区域 ===== */
@media (max-width: 575.98px) {
    /* 操作列按钮紧凑显示 */
    .rh-student-table .rh-actions-col .btn {
        padding: 0.2rem 0.35rem;
        font-size: 0.75rem;
    }

    /* 弹窗表单行变单列 */
    .modal .row.g-2 > .col-6 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    /* 管理后台筛选栏 */
    .form-control-sm, .form-select-sm {
        font-size: 0.85rem;
    }

    /* 编辑弹窗优化 */
    .modal-dialog-scrollable .modal-body {
        max-height: 70vh;
    }

    /* 分页导航紧凑 */
    .pagination .page-link {
        padding: 0.25rem 0.5rem;
        font-size: 0.8rem;
    }
}

/* ===== 触控优化：增大可点击区域 ===== */
@media (pointer: coarse) {
    .btn-sm {
        min-height: 36px;
        min-width: 44px;
    }
    .nav-link {
        padding: 0.6rem 0.8rem;
    }
    .form-control, .form-select {
        min-height: 40px;
    }
    .table td .btn {
        margin: 2px;
    }
    input[type="checkbox"] {
        width: 20px;
        height: 20px;
    }
}