/* ============================================================
   图纸及模具管理系统 — 设计系统
   颜色、间距、组件全部基于 :root 设计令牌
   ============================================================ */

:root {
    --c-primary:        #2563eb;
    --c-primary-hover:  #1d4ed8;
    --c-primary-soft:   #eff6ff;
    --c-primary-border: #bfdbfe;

    --c-danger:         #dc2626;
    --c-danger-hover:   #b91c1c;
    --c-danger-soft:    #fef2f2;
    --c-warning:        #d97706;
    --c-warning-hover:  #b45309;
    --c-success:        #16a34a;
    --c-success-soft:   #f0fdf4;
    --c-info:           #0891b2;

    --c-bg:             #f1f5f9;
    --c-surface:        #ffffff;
    --c-border:         #e2e8f0;
    --c-border-strong:  #cbd5e1;

    --c-text:           #0f172a;
    --c-text-2:         #475569;
    --c-text-3:         #94a3b8;

    --sidebar-bg:       #0f172a;
    --sidebar-text:     #cbd5e1;
    --sidebar-active:   #2563eb;

    --radius:           10px;
    --radius-sm:        6px;
    --shadow-1:         0 1px 3px rgba(15, 23, 42, .08);
    --shadow-2:         0 4px 16px rgba(15, 23, 42, .12);
    --shadow-3:         0 12px 40px rgba(15, 23, 42, .22);

    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
            "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    --mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

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

html { height: 100%; scroll-behavior: smooth; }

body {
    min-height: 100%;
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.6;
    color: var(--c-text);
    background: var(--c-bg);
    -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 { line-height: 1.3; font-weight: 600; }

/* ============ 布局 ============ */

.app { display: flex; min-height: 100vh; }

.sidebar {
    width: 220px;
    flex-shrink: 0;
    background: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-brand {
    padding: 20px 18px;
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar-brand .brand-mark {
    width: 36px; height: 36px;
    border-radius: 8px;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    display: grid; place-items: center;
    color: #fff; font-weight: 700; font-size: 15px;
    flex-shrink: 0;
}

.sidebar-brand .brand-name {
    color: #fff; font-size: 15px; font-weight: 600; line-height: 1.25;
}

.sidebar-nav { padding: 14px 10px; display: flex; flex-direction: column; gap: 2px; flex: 1; }

.sidebar-nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--sidebar-text);
    font-weight: 500;
    transition: background .15s, color .15s;
}

.sidebar-nav a:hover { background: rgba(255, 255, 255, .06); color: #fff; }

.sidebar-nav a.active {
    background: var(--sidebar-active);
    color: #fff;
}

.sidebar-nav .nav-icon {
    width: 20px; text-align: center;
    font-size: 15px; flex-shrink: 0;
}

.sidebar-footer {
    padding: 14px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    font-size: 12px; color: var(--c-text-3);
    text-align: center;
}

.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.topbar {
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    padding: 0 24px;
    height: 60px;
    display: flex; align-items: center; gap: 16px;
    position: sticky; top: 0; z-index: 40;
}

.topbar .menu-toggle {
    display: none;
    background: none; border: none; font-size: 20px;
    color: var(--c-text-2); cursor: pointer; padding: 6px;
    border-radius: var(--radius-sm);
}
.topbar .menu-toggle:hover { background: var(--c-primary-soft); }

.topbar .page-title { font-size: 16px; font-weight: 600; }

.topbar-spacer { flex: 1; }

.user-chip {
    display: flex; align-items: center; gap: 10px;
    padding: 6px 6px 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--c-border);
    background: var(--c-bg);
}

.user-chip .avatar {
    width: 30px; height: 30px; border-radius: 50%;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    color: #fff; display: grid; place-items: center;
    font-size: 13px; font-weight: 600;
}

.user-chip .user-name { font-weight: 500; max-width: 140px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.content { padding: 24px; max-width: 1400px; width: 100%; margin: 0 auto; flex: 1; }

/* ============ 通用组件 ============ */

.card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-1);
}

.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-border);
    display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.card-header h2 { font-size: 15px; }
.card-body { padding: 20px; }

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 14px; font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    white-space: nowrap;
    transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
    text-decoration: none;
    line-height: 1.5;
}

.btn:disabled, .btn.disabled { opacity: .55; cursor: not-allowed; }

.btn-primary { background: var(--c-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--c-primary-hover); color: #fff; }

.btn-secondary {
    background: var(--c-surface); color: var(--c-text-2);
    border-color: var(--c-border-strong);
}
.btn-secondary:hover:not(:disabled) { border-color: var(--c-primary); color: var(--c-primary); }

.btn-danger { background: var(--c-danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: var(--c-danger-hover); color: #fff; }

.btn-warning { background: var(--c-warning); color: #fff; }
.btn-warning:hover:not(:disabled) { background: var(--c-warning-hover); color: #fff; }

.btn-ghost { background: transparent; color: var(--c-text-2); }
.btn-ghost:hover:not(:disabled) { background: var(--c-primary-soft); color: var(--c-primary); }

.btn-sm { padding: 4px 10px; font-size: 13px; border-radius: 5px; }
.btn-lg { padding: 11px 22px; font-size: 15px; }
.btn-block { width: 100%; }

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

.data-table { width: 100%; border-collapse: collapse; font-size: 13.5px; }

.data-table th {
    text-align: left;
    padding: 11px 14px;
    background: #f8fafc;
    color: var(--c-text-2);
    font-weight: 600;
    font-size: 12.5px;
    border-bottom: 1px solid var(--c-border);
    white-space: nowrap;
}

.data-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--c-border);
    vertical-align: middle;
}

.data-table tbody tr:hover { background: #f8fafc; }
.data-table tbody tr:last-child td { border-bottom: none; }

.empty-state {
    padding: 56px 20px;
    text-align: center;
    color: var(--c-text-3);
}
.empty-state .empty-icon { font-size: 40px; margin-bottom: 10px; }

/* 表单 */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px 24px;
}
.form-grid .col-span-2 { grid-column: span 2; }

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group > label { font-size: 13px; font-weight: 600; color: var(--c-text-2); }

.form-group > label .required { color: var(--c-danger); margin-left: 2px; }

.form-hint { font-size: 12px; color: var(--c-text-3); }

input[type="text"], input[type="password"], input[type="email"],
input[type="number"], input[type="search"], select, textarea {
    width: 100%;
    padding: 9px 12px;
    font-size: 14px;
    font-family: inherit;
    color: var(--c-text);
    background: var(--c-surface);
    border: 1px solid var(--c-border-strong);
    border-radius: var(--radius-sm);
    transition: border-color .15s, box-shadow .15s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--c-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}

textarea { resize: vertical; min-height: 90px; }

input[type="file"] {
    font-size: 13px;
    width: 100%;
    padding: 8px;
    border: 1px dashed var(--c-border-strong);
    border-radius: var(--radius-sm);
    background: #f8fafc;
}
input[type="file"]::file-selector-button {
    border: none; background: var(--c-primary); color: #fff;
    padding: 6px 14px; border-radius: 5px; margin-right: 10px;
    font-family: inherit; font-size: 13px; cursor: pointer;
}

.checkbox-row { display: flex; align-items: center; gap: 8px; cursor: pointer; font-size: 14px; }
.checkbox-row input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--c-primary); cursor: pointer; }

/* 校验反馈 */
.field-feedback { font-size: 12.5px; min-height: 16px; }
.field-feedback.ok { color: var(--c-success); }
.field-feedback.err { color: var(--c-danger); }
.field-feedback.loading { color: var(--c-text-3); }

/* 徽章 */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 12px; font-weight: 500;
    background: var(--c-primary-soft); color: var(--c-primary);
    border: 1px solid var(--c-primary-border);
    white-space: nowrap;
}
.badge.badge-green { background: var(--c-success-soft); color: var(--c-success); border-color: #bbf7d0; }
.badge.badge-gray { background: #f1f5f9; color: var(--c-text-2); border-color: var(--c-border); }
.badge.badge-orange { background: #fffbeb; color: var(--c-warning); border-color: #fde68a; }

/* 统计卡片 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-1);
    padding: 18px 20px;
    display: flex; align-items: center; gap: 14px;
}

.stat-card .stat-icon {
    width: 44px; height: 44px;
    border-radius: 10px;
    display: grid; place-items: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-card .stat-label { font-size: 12.5px; color: var(--c-text-2); }
.stat-card .stat-value { font-size: 22px; font-weight: 700; font-variant-numeric: tabular-nums; }

.stat-card.tone-blue .stat-icon { background: var(--c-primary-soft); }
.stat-card.tone-green .stat-icon { background: var(--c-success-soft); }
.stat-card.tone-amber .stat-icon { background: #fffbeb; }
.stat-card.tone-violet .stat-icon { background: #f5f3ff; }

/* 搜索/筛选栏 */
.filter-bar {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-1);
    padding: 16px 20px;
    margin-bottom: 16px;
}

.filter-bar form {
    display: grid;
    grid-template-columns: 2fr repeat(4, 1fr) auto;
    gap: 12px;
    align-items: end;
}

/* 分页 */
.pagination {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    padding: 16px 0 4px;
    flex-wrap: wrap;
}
.pagination .page-info { font-size: 13px; color: var(--c-text-2); margin: 0 8px; }
.pagination a, .pagination span.page-link {
    min-width: 32px; height: 32px;
    display: inline-flex; align-items: center; justify-content: center;
    padding: 0 8px;
    border-radius: 6px;
    border: 1px solid var(--c-border);
    background: var(--c-surface);
    color: var(--c-text-2);
    font-size: 13px;
}
.pagination a:hover { border-color: var(--c-primary); color: var(--c-primary); }
.pagination .current {
    background: var(--c-primary); border-color: var(--c-primary); color: #fff; font-weight: 600;
}
.pagination .disabled { opacity: .45; pointer-events: none; }

/* 提示条 */
.alert {
    padding: 11px 16px;
    border-radius: var(--radius-sm);
    font-size: 13.5px;
    margin-bottom: 16px;
    border: 1px solid;
}
.alert-success { background: var(--c-success-soft); color: #15803d; border-color: #bbf7d0; }
.alert-error   { background: var(--c-danger-soft); color: #b91c1c; border-color: #fecaca; }
.alert-info    { background: var(--c-primary-soft); color: #1d4ed8; border-color: var(--c-primary-border); }
.alert ul { margin: 4px 0 0 18px; }

/* 详情页 */
.detail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px 24px;
}
.detail-item .detail-label { font-size: 12px; color: var(--c-text-3); margin-bottom: 3px; }
.detail-item .detail-value { font-size: 14.5px; font-weight: 500; word-break: break-all; }

/* 文件列表（编辑页） */
.file-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 12px; }

.file-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 12px;
    background: #f8fafc;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
}
.file-item.removing { opacity: .45; }
.file-item .file-thumb {
    width: 52px; height: 52px;
    border-radius: 6px;
    object-fit: cover;
    flex-shrink: 0;
    background: #fff;
    border: 1px solid var(--c-border);
    display: grid; place-items: center;
    font-size: 10px; color: var(--c-text-3);
    overflow: hidden;
}
.file-item .file-meta { flex: 1; min-width: 0; }
.file-item .file-name {
    font-size: 13px; font-weight: 500;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-family: var(--mono);
}
.file-item .file-sub { font-size: 12px; color: var(--c-text-3); }

/* 权限矩阵 */
.perm-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 10px;
}
.perm-item {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 14px;
    background: #f8fafc;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.perm-item:hover { border-color: var(--c-primary); }
.perm-item.on { background: var(--c-primary-soft); border-color: var(--c-primary-border); }
.perm-item input { width: 17px; height: 17px; accent-color: var(--c-primary); cursor: pointer; flex-shrink: 0; }
.perm-item .perm-label { font-size: 13.5px; font-weight: 500; }

/* 模态框 */
.modal-overlay {
    position: fixed; inset: 0;
    background: rgba(15, 23, 42, .5);
    backdrop-filter: blur(2px);
    display: grid; place-items: center;
    z-index: 100;
    padding: 20px;
    animation: fadeIn .15s ease;
}
.modal {
    background: var(--c-surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow-3);
    width: 100%;
    max-width: 480px;
    max-height: calc(100vh - 40px);
    display: flex; flex-direction: column;
    animation: slideUp .18s ease;
}
.modal.modal-lg { max-width: 640px; }
.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--c-border);
    display: flex; align-items: center; justify-content: space-between; gap: 10px;
}
.modal-header h3 { font-size: 15.5px; }
.modal-close {
    background: none; border: none; font-size: 22px; line-height: 1;
    color: var(--c-text-3); cursor: pointer; padding: 2px 6px; border-radius: 4px;
}
.modal-close:hover { color: var(--c-text); background: var(--c-bg); }
.modal-body { padding: 20px; overflow-y: auto; }
.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--c-border);
    display: flex; justify-content: flex-end; gap: 10px;
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { transform: translateY(14px); opacity: 0; } to { transform: none; opacity: 1; } }

/* 文件预览器 */
.viewer {
    position: fixed; inset: 0;
    background: rgba(2, 6, 23, .88);
    z-index: 120;
    display: flex; flex-direction: column;
    animation: fadeIn .15s ease;
}
.viewer-header {
    padding: 12px 20px;
    color: #fff;
    display: flex; align-items: center; gap: 14px;
    background: rgba(15, 23, 42, .7);
}
.viewer-title {
    flex: 1; min-width: 0;
    font-size: 14px;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    font-family: var(--mono);
}
.viewer-body {
    flex: 1; min-height: 0;
    display: grid; place-items: center;
    padding: 16px;
    overflow: auto;
}
.viewer-body img { max-width: 100%; max-height: calc(100vh - 130px); border-radius: 4px; box-shadow: var(--shadow-3); }
.viewer-body iframe { width: min(1100px, 94vw); height: calc(100vh - 140px); border: none; border-radius: 6px; background: #fff; }
.viewer-unsupported { text-align: center; color: #cbd5e1; }
.viewer-unsupported .big-icon { font-size: 44px; margin-bottom: 12px; }
.viewer-footer {
    padding: 10px 20px;
    display: flex; align-items: center; justify-content: center; gap: 10px; flex-wrap: wrap;
    background: rgba(15, 23, 42, .7);
}
.viewer-counter { color: #cbd5e1; font-size: 13px; min-width: 52px; text-align: center; }

/* Toast */
.toast-container {
    position: fixed; top: 18px; right: 18px;
    display: flex; flex-direction: column; gap: 10px;
    z-index: 200;
}
.toast {
    min-width: 240px; max-width: 360px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    box-shadow: var(--shadow-2);
    font-size: 13.5px;
    display: flex; align-items: flex-start; gap: 8px;
    animation: slideUp .2s ease;
}
.toast.toast-success { border-left: 3px solid var(--c-success); }
.toast.toast-error { border-left: 3px solid var(--c-danger); }
.toast.toast-warning { border-left: 3px solid var(--c-warning); }
.toast.leaving { transition: opacity .25s, transform .25s; opacity: 0; transform: translateX(20px); }

/* 登录页 */
.login-page {
    min-height: 100vh;
    display: grid; place-items: center;
    background:
        radial-gradient(900px 500px at 20% 0%, rgba(37, 99, 235, .14), transparent),
        radial-gradient(700px 500px at 90% 100%, rgba(56, 189, 248, .12), transparent),
        var(--c-bg);
    padding: 20px;
}

.login-card {
    width: 100%; max-width: 400px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: 14px;
    box-shadow: var(--shadow-2);
    padding: 36px 32px;
}

.login-card .login-logo {
    width: 52px; height: 52px;
    border-radius: 12px;
    background: linear-gradient(135deg, #2563eb, #38bdf8);
    color: #fff; font-size: 22px; font-weight: 700;
    display: grid; place-items: center;
    margin: 0 auto 14px;
}
.login-card h1 { font-size: 19px; text-align: center; margin-bottom: 4px; }
.login-card .login-sub { text-align: center; color: var(--c-text-3); font-size: 13px; margin-bottom: 26px; }
.login-card .form-group { margin-bottom: 16px; }
.login-card .btn { margin-top: 6px; }

/* 页头操作区 */
.page-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 20px; flex-wrap: wrap; }
.page-head h1 { font-size: 20px; }
.page-head .actions { display: flex; gap: 10px; flex-wrap: wrap; }

.text-muted { color: var(--c-text-3); }
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }

/* 工具条（表单内组合输入） */
.input-combo { display: flex; gap: 8px; }
.input-combo > select { flex: 1; min-width: 0; }
.input-combo > input { flex: 1; min-width: 0; }

hr.divider { border: none; border-top: 1px solid var(--c-border); margin: 22px 0; }

/* ============ 响应式 ============ */

@media (max-width: 960px) {
    .filter-bar form { grid-template-columns: 1fr 1fr; }
    .filter-bar form .filter-search { grid-column: span 2; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid .col-span-2 { grid-column: span 1; }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: -240px;
        transition: left .22s ease;
        z-index: 90;
        box-shadow: var(--shadow-3);
    }
    .sidebar.open { left: 0; }

    .topbar .menu-toggle { display: block; }
    .content { padding: 16px; }
    .topbar { padding: 0 14px; }
    .user-chip .user-name { display: none; }

    .stats-grid { grid-template-columns: 1fr 1fr; }
    .data-table th, .data-table td { padding: 9px 10px; }

    .modal-overlay { padding: 12px; }
    .page-head h1 { font-size: 18px; }
}