/* ============================================================
   云仓管理系统 - 主样式表
   ============================================================ */

:root {
    --primary: #4f46e5;
    --primary-light: #6366f1;
    --primary-dark: #4338ca;
    --primary-bg: #eef2ff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;

    --bg-page: #f1f5f9;
    --bg-card: #ffffff;
    --bg-sidebar: #1e293b;
    --bg-topbar: #ffffff;

    --border-color: #e2e8f0;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);

    --sidebar-width: 220px;
    --topbar-height: 56px;
}

/* ---- Reset ---- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; }
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-page);
    line-height: 1.6;
}
a { color: var(--primary); text-decoration: none; }
a:hover { color: var(--primary-dark); }

/* ---- Layout ---- */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    color: #cbd5e1;
    position: fixed;
    top: 0; left: 0; bottom: 0;
    z-index: 100;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}
.sidebar-logo {
    padding: 18px 20px;
    font-size: 18px;
    font-weight: 700;
    color: #fff;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    gap: 10px;
    white-space: nowrap;
}
.sidebar-logo .logo-icon {
    width: 32px; height: 32px;
    background: var(--primary);
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 16px; flex-shrink: 0;
}
.sidebar-nav { flex: 1; padding: 12px 0; }
.sidebar-nav .nav-section {
    padding: 8px 20px 4px;
    font-size: 11px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 20px;
    color: #94a3b8;
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}
.sidebar-nav a:hover {
    color: #fff;
    background: rgba(255,255,255,0.05);
}
.sidebar-nav a.active {
    color: #fff;
    background: rgba(79,70,229,0.15);
    border-left-color: var(--primary);
}
.sidebar-nav .nav-icon { width: 18px; text-align: center; flex-shrink: 0; }

.main-area {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* ---- Topbar ---- */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-topbar);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 50;
}
.topbar-title { font-size: 16px; font-weight: 600; }
.topbar-user {
    display: flex;
    align-items: center;
    gap: 10px;
}
.topbar-user .avatar {
    width: 34px; height: 34px;
    background: var(--primary);
    color: #fff;
    border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 14px; font-weight: 600;
}

/* ---- Content ---- */
.content { flex: 1; padding: 24px; }

/* ---- Cards ---- */
.card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}
.card-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.card-header h3 { font-size: 15px; font-weight: 600; }
.card-body { padding: 20px; }

/* ---- Stat Cards ---- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}
.stat-card {
    background: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.15s, box-shadow 0.15s;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-icon {
    width: 48px; height: 48px;
    border-radius: 12px;
    display: flex; align-items: center; justify-content: center;
    font-size: 22px; flex-shrink: 0;
}
.stat-icon.bg-primary { background: var(--primary-bg); color: var(--primary); }
.stat-icon.bg-success { background: #d1fae5; color: var(--success); }
.stat-icon.bg-warning { background: #fef3c7; color: var(--warning); }
.stat-icon.bg-danger  { background: #fee2e2; color: var(--danger); }
.stat-icon.bg-info    { background: #dbeafe; color: var(--info); }
.stat-info .stat-label { font-size: 13px; color: var(--text-secondary); }
.stat-info .stat-value { font-size: 24px; font-weight: 700; color: var(--text-primary); }

/* ---- Table ---- */
.table-wrapper { overflow-x: auto; }
table.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
}
table.data-table th {
    text-align: left;
    padding: 12px 16px;
    background: #f8fafc;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}
table.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}
table.data-table tbody tr:hover { background: #f8fafc; }
table.data-table .text-right { text-align: right; }
table.data-table .text-center { text-align: center; }

/* ---- Badges ---- */
.badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
}
.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger  { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }
.badge-info    { background: #dbeafe; color: #1e40af; }
.badge-gray    { background: #f1f5f9; color: #475569; }
.badge-purple  { background: #ede9fe; color: #6d28d9; }

/* ---- Modal ---- */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9000;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-box {
    background: #fff;
    border-radius: 10px;
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
}
.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid #e2e8f0;
}
.modal-header h3 {
    margin: 0;
    font-size: 16px;
}
.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: #64748b;
    padding: 0;
    line-height: 1;
}
.modal-close:hover { color: #1e293b; }
.modal-body { padding: 20px; }

/* ---- Alert ---- */
.alert {
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 13px;
}
.alert-info {
    background: #eff6ff;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* ---- Buttons ---- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); color: #fff; }
.btn-outline { background: #fff; border-color: var(--border-color); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #dc2626; color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 13px; }
.btn-link {
    background: none; border: none; color: var(--primary);
    padding: 4px 8px; cursor: pointer; font-size: 13px;
}
.btn-link:hover { color: var(--primary-dark); }
.btn-link.text-danger { color: var(--danger); }
.btn-link.text-danger:hover { color: #dc2626; }

/* ---- Forms ---- */
.form-group { margin-bottom: 18px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 500;
    font-size: 14px;
    color: var(--text-primary);
}
.form-group label .required { color: var(--danger); }
.form-control {
    width: 100%;
    padding: 9px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-primary);
    background: #fff;
    transition: border-color 0.15s, box-shadow 0.15s;
    outline: none;
}
.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.1);
}
select.form-control { appearance: auto; }
textarea.form-control { resize: vertical; min-height: 80px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-actions { display: flex; gap: 12px; margin-top: 24px; }

/* ---- Search Bar ---- */
.search-bar {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 16px;
}
.search-bar .form-control { width: auto; min-width: 160px; }
.search-bar .search-input { flex: 1; min-width: 200px; }

/* ---- Pagination ---- */
.pagination { display: flex; gap: 4px; justify-content: center; margin-top: 20px; list-style: none; }
.pagination li a, .pagination li span {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 34px; height: 34px;
    padding: 0 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    background: #fff;
}
.pagination li a:hover { border-color: var(--primary); color: var(--primary); }
.pagination li.active span { background: var(--primary); color: #fff; border-color: var(--primary); }
.pagination li.disabled span { color: var(--text-light); background: #f8fafc; }

/* ---- Alerts ---- */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 14px;
}
.alert-error { background: #fee2e2; color: #991b1b; }
.alert-success { background: #d1fae5; color: #065f46; }

/* ---- Login Page ---- */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
}
.login-card {
    width: 400px;
    max-width: 90vw;
    background: #fff;
    border-radius: 16px;
    padding: 40px 36px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.login-logo {
    text-align: center;
    margin-bottom: 30px;
}
.login-logo .logo-circle {
    width: 64px; height: 64px;
    background: var(--primary);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    color: #fff;
    margin-bottom: 12px;
}
.login-logo h1 { font-size: 22px; font-weight: 700; color: var(--text-primary); }
.login-logo p { font-size: 14px; color: var(--text-secondary); margin-top: 4px; }
.login-form .form-group { margin-bottom: 20px; }
.login-form .btn-primary { width: 100%; justify-content: center; padding: 11px; font-size: 15px; }
.login-tip {
    margin-top: 20px;
    padding: 12px;
    background: #f8fafc;
    border-radius: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    text-align: center;
}

/* ---- Chart Container ---- */
.chart-container { width: 100%; height: 320px; }
.chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }

/* ---- Misc ---- */
.text-muted { color: var(--text-light); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.font-bold { font-weight: 600; }
.font-mono { font-family: "Cascadia Code", "Fira Code", "Consolas", monospace; }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.mt-4 { margin-top: 16px; }
.text-sm { font-size: 13px; }
.text-lg { font-size: 18px; }
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-light); }

/* ---- Toast ---- */
.toast-container {
    position: fixed;
    top: 70px;
    right: 24px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.toast {
    padding: 12px 20px;
    border-radius: 8px;
    color: #fff;
    font-size: 14px;
    box-shadow: var(--shadow-md);
    animation: slideIn 0.3s ease;
    min-width: 200px;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .main-area { margin-left: 0; }
    .form-row { grid-template-columns: 1fr; }
    .chart-grid { grid-template-columns: 1fr; }
}