/* ===== WMS 仓库管理系统 - 样式 ===== */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --success: #16a34a;
    --danger: #dc2626;
    --warning: #f59e0b;
    --info: #0891b2;
    --bg: #f1f5f9;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,.08);
    --shadow-lg: 0 4px 12px rgba(0,0,0,.1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }

/* Navbar */
.navbar { display: flex; align-items: center; background: var(--primary); color: #fff; padding: 0 24px; height: 56px; box-shadow: var(--shadow-lg); position: sticky; top: 0; z-index: 100; }
.nav-brand { font-size: 18px; font-weight: 700; letter-spacing: 0.5px; margin-right: 32px; white-space: nowrap; }
.nav-links { display: flex; list-style: none; gap: 4px; overflow-x: auto; }
.nav-links li { white-space: nowrap; }
.nav-links a { display: block; padding: 8px 16px; color: rgba(255,255,255,.85); text-decoration: none; border-radius: 6px; font-size: 14px; transition: all .2s; }
.nav-links a:hover, .nav-links a.active { background: rgba(255,255,255,.2); color: #fff; }

/* Container */
.container { max-width: 1440px; margin: 0 auto; padding: 24px; }

/* Card */
.card { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); padding: 20px; margin-bottom: 20px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-title { font-size: 18px; font-weight: 600; }

/* Dashboard Grid */
.dashboard-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; margin-bottom: 24px; }
.stat-card { background: var(--card-bg); border-radius: var(--radius); box-shadow: var(--shadow); padding: 14px 10px; text-align: center; }
.stat-card .stat-value { font-size: 22px; font-weight: 700; color: var(--primary); }
.stat-card .stat-label { font-size: 12px; color: var(--text-light); margin-top: 2px; }
.stat-card.warn .stat-value { color: var(--danger); }
.stat-card.success .stat-value { color: var(--success); }

/* Form */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; color: var(--text-light); margin-bottom: 4px; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
    font-size: 14px; background: #fff; transition: border-color .2s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; padding: 8px 16px; border: none; border-radius: 6px; font-size: 14px; font-weight: 500; cursor: pointer; transition: all .2s; text-decoration: none; gap: 6px; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #15803d; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: var(--bg); }
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-block { width: 100%; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { font-weight: 600; color: var(--text-light); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; background: #f8fafc; }
th.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
    padding-right: 34px;
    border-right: 1px dashed var(--border);
}
th.sortable:last-child { border-right: none; }

th.sortable::before,
th.sortable::after {
    content: "";
    position: absolute;
    right: 10px;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    transition: border-color 0.15s;
}

/* 上三角 ▲ */
th.sortable::before {
    top: 50%;
    margin-top: -9px;
    border-bottom: 5px solid #ccc;
}
/* 下三角 ▼ */
th.sortable::after {
    top: 50%;
    margin-top: 3px;
    border-top: 5px solid #ccc;
}

th.sortable:hover::before,
th.sortable:hover::after {
    border-bottom-color: #999;
    border-top-color: #999;
}

/* 升序：上三角高亮 */
th.sort-asc::before { border-bottom-color: var(--primary); }
th.sort-asc::after  { border-top-color: #ddd; }
/* 降序：下三角高亮 */
th.sort-desc::before { border-bottom-color: #ddd; }
th.sort-desc::after  { border-top-color: var(--primary); }
th.sortable:hover { background: #e8f0fe; }
tr:hover { background: #f8fafc; }
tr:hover .row-actions { visibility: visible; }
.row-actions { visibility: hidden; white-space: nowrap; }

/* Badge */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 11px; font-weight: 600; }
.badge-in { background: #dcfce7; color: #166534; }
.badge-out { background: #fee2e2; color: #991b1b; }
.badge-warn { background: #fef3c7; color: #92400e; }

/* Toolbar */
.toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 16px; }
.toolbar input, .toolbar select { padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 14px; }
.toolbar input { flex: 1; min-width: 200px; }
.toolbar select { min-width: 150px; }

/* Modal */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 200; justify-content: center; align-items: center; }
.modal-overlay.show { display: flex; }
.modal { background: #fff; border-radius: 12px; padding: 24px; max-width: 560px; width: 90%; max-height: 85vh; overflow-y: auto; box-shadow: var(--shadow-lg); }
.modal h3 { margin-bottom: 16px; font-size: 18px; }
.modal-actions { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* Toast */
.toast { position: fixed; bottom: 24px; right: 24px; padding: 12px 24px; border-radius: 8px; color: #fff; font-size: 14px; z-index: 300; transform: translateY(100px); opacity: 0; transition: all .3s; pointer-events: none; }
.toast.show { transform: translateY(0); opacity: 1; }
.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--info); }

/* Pagination */
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 16px; }
.pagination button { padding: 6px 12px; border: 1px solid var(--border); border-radius: 6px; background: #fff; cursor: pointer; font-size: 13px; }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination button:disabled { opacity: .5; cursor: default; }

/* Empty State */
.empty { text-align: center; padding: 40px; color: var(--text-light); }

/* Quick scan input */
.scan-bar { display: flex; gap: 12px; align-items: center; padding: 12px 16px; background: #f0f9ff; border: 2px dashed var(--primary); border-radius: 8px; margin-bottom: 16px; }
.scan-bar input { flex: 1; padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px; font-size: 16px; }
.scan-bar .hint { font-size: 12px; color: var(--text-light); }

/* Responsive */
@media (max-width: 768px) {
    .navbar { padding: 0 12px; }
    .nav-brand { font-size: 15px; margin-right: 16px; }
    .nav-links a { padding: 6px 10px; font-size: 12px; }
    .container { padding: 12px; }
    .form-row { grid-template-columns: 1fr; }
    .dashboard-grid { grid-template-columns: repeat(3, 1fr); }
}