/* ============================================================
   进销存管理系统 - 全局样式
   ============================================================ */
:root {
    --brand:        #2563eb;
    --brand-dark:   #1d4ed8;
    --brand-light:  #eff4ff;
    --brand-border: #c7d9fe;
    --bg:           #f4f6fa;
    --panel:        #ffffff;
    --border:       #e6eaf2;
    --border-2:     #d8dfeb;
    --text:         #1e293b;
    --text-2:       #5b6579;
    --text-3:       #94a0b8;
    --success:      #16a34a;
    --success-bg:   #eaf7ef;
    --danger:       #dc2626;
    --danger-bg:    #fdeeee;
    --warn:         #d97706;
    --warn-bg:      #fdf4e3;
    --info-bg:      #eef4ff;
    --radius:       10px;
    --radius-sm:    7px;
    --shadow:       0 1px 2px rgba(16,24,40,.04), 0 4px 14px rgba(16,24,40,.05);
    --shadow-lg:    0 10px 40px rgba(16,24,40,.14);
    --sidebar-w:    216px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }

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

.sidebar {
    width: var(--sidebar-w);
    flex: 0 0 var(--sidebar-w);
    background: var(--panel);
    border-right: 1px solid var(--border);
    position: fixed; top: 0; left: 0; bottom: 0;
    display: flex; flex-direction: column;
    z-index: 30;
}

.logo {
    height: 60px; flex: 0 0 60px;
    display: flex; align-items: center; gap: 9px;
    padding: 0 18px;
    border-bottom: 1px solid var(--border);
}
.logo-mark {
    width: 30px; height: 30px; border-radius: 8px;
    background: linear-gradient(135deg, #2563eb, #4f8bff);
    color: #fff; display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; letter-spacing: -.5px;
    box-shadow: 0 3px 8px rgba(37,99,235,.3);
}
.logo-text { font-weight: 600; font-size: 15px; letter-spacing: .3px; }

.nav { flex: 1; overflow-y: auto; padding: 10px 10px 24px; }
.nav-group { margin-bottom: 4px; }
.nav-group-title {
    font-size: 11px; color: var(--text-3); font-weight: 600;
    padding: 12px 10px 5px; letter-spacing: .6px;
}
.nav a.nav-item {
    display: flex; align-items: center; gap: 9px;
    padding: 8px 10px; border-radius: var(--radius-sm);
    color: var(--text-2); font-size: 13.5px; margin-bottom: 1px;
    transition: background .12s, color .12s;
}
.nav a.nav-item:hover { background: #f5f7fb; color: var(--text); }
.nav a.nav-item.active { background: var(--brand-light); color: var(--brand); font-weight: 600; }
.nav a.nav-item .ico { width: 16px; height: 16px; flex: 0 0 16px; opacity: .85; }
.nav a.nav-item.active .ico { opacity: 1; }

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

.topbar {
    height: 60px; flex: 0 0 60px;
    background: rgba(255,255,255,.85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 22px; position: sticky; top: 0; z-index: 20;
}
.crumb { font-size: 15px; font-weight: 600; display: flex; align-items: center; gap: 8px; }
.crumb .sub { font-size: 12.5px; color: var(--text-3); font-weight: 400; }
.topbar-right { display: flex; align-items: center; gap: 14px; }
.user-chip {
    display: flex; align-items: center; gap: 8px;
    padding: 5px 10px 5px 5px; border-radius: 30px;
    background: #f6f8fc; border: 1px solid var(--border);
}
.avatar {
    width: 26px; height: 26px; border-radius: 50%;
    background: linear-gradient(135deg,#2563eb,#60a5fa); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 600;
}
.user-chip .nm { font-size: 13px; font-weight: 500; }
.user-chip .rl { font-size: 11px; color: var(--text-3); }

.content { padding: 20px 22px 40px; flex: 1; }

/* ---------------- 卡片 ---------------- */
.card {
    background: var(--panel); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: var(--shadow);
    margin-bottom: 16px; overflow: hidden;
}
.card-head {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 18px; border-bottom: 1px solid var(--border); gap: 12px;
}
.card-title { font-weight: 600; font-size: 14.5px; display: flex; align-items: center; gap: 8px; }
.card-title .bar { width: 3px; height: 14px; border-radius: 2px; background: var(--brand); }
.card-body { padding: 18px; }
.card-body.tight { padding: 0; }

/* ---------------- 工具条 ---------------- */
.toolbar {
    display: flex; align-items: center; justify-content: space-between;
    gap: 12px; flex-wrap: wrap; padding: 14px 18px;
    border-bottom: 1px solid var(--border); background: #fcfdff;
}
.filters { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.actions { display: flex; align-items: center; gap: 8px; }

/* ---------------- 表单控件 ---------------- */
input[type=text], input[type=password], input[type=number], input[type=date],
input[type=month], input[type=email], input[type=tel], select, textarea {
    height: 34px; padding: 0 10px;
    border: 1px solid var(--border-2); border-radius: var(--radius-sm);
    background: #fff; color: var(--text); font-size: 13.5px;
    font-family: inherit; outline: none; transition: border-color .14s, box-shadow .14s;
    width: 100%;
}
textarea { height: auto; min-height: 72px; padding: 8px 10px; resize: vertical; line-height: 1.6; }
input:focus, select:focus, textarea:focus {
    border-color: var(--brand); box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
input:disabled, select:disabled, input[readonly] { background: #f6f8fc; color: var(--text-2); cursor: not-allowed; }
input::placeholder, textarea::placeholder { color: #b3bccd; }
select { appearance: none; background-image: url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a0b8' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat: no-repeat; background-position: right 9px center; padding-right: 26px; }

.w-auto { width: auto !important; }
.w-80 { width: 80px !important; } .w-100 { width: 100px !important; }
.w-120 { width: 120px !important; } .w-140 { width: 140px !important; }
.w-160 { width: 160px !important; } .w-200 { width: 200px !important; }
.w-240 { width: 240px !important; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px 20px; }
.form-grid.cols-3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.form-grid.cols-1 { grid-template-columns: 1fr; }
.form-item { display: flex; flex-direction: column; gap: 5px; }
.form-item.span-2 { grid-column: span 2; }
.form-item.span-all { grid-column: 1 / -1; }
.form-item label { font-size: 12.5px; color: var(--text-2); font-weight: 500; }
.form-item label .req { color: var(--danger); margin-left: 2px; }
.form-item .hint { font-size: 11.5px; color: var(--text-3); }
.form-actions {
    display: flex; gap: 10px; padding: 14px 18px;
    border-top: 1px solid var(--border); background: #fcfdff;
    position: sticky; bottom: 0; z-index: 5;
}

/* ---------------- 按钮 ---------------- */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 6px;
    height: 34px; padding: 0 15px; border-radius: var(--radius-sm);
    border: 1px solid var(--border-2); background: #fff; color: var(--text);
    font-size: 13.5px; font-family: inherit; cursor: pointer;
    transition: all .14s; white-space: nowrap; text-decoration: none;
}
.btn:hover { border-color: #b9c3d6; background: #fafbfe; color: var(--text); }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 500; box-shadow: 0 2px 6px rgba(37,99,235,.22); }
.btn-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); color: #fff; }
.btn-danger { background: #fff; border-color: #f2c3c3; color: var(--danger); }
.btn-danger:hover { background: var(--danger-bg); border-color: #e9a8a8; color: var(--danger); }
.btn-ghost { border-color: transparent; background: transparent; color: var(--text-2); }
.btn-ghost:hover { background: #f3f6fb; color: var(--text); }
.btn-sm { height: 28px; padding: 0 10px; font-size: 12.5px; }
.btn-lg { height: 40px; padding: 0 22px; font-size: 14.5px; }
.btn-block { width: 100%; }
.btn[disabled], .btn.disabled { opacity: .5; pointer-events: none; }
.btn-group { display: inline-flex; gap: 6px; }

/* ---------------- 表格 ---------------- */
.table-wrap { overflow-x: auto; }
table.tb { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13.5px; }
table.tb th {
    background: #f8fafd; color: var(--text-2); font-weight: 600; font-size: 12.5px;
    text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border);
    white-space: nowrap; position: sticky; top: 0; z-index: 2;
}
table.tb td { padding: 10px 12px; border-bottom: 1px solid #f1f4f9; vertical-align: middle; }
table.tb tbody tr:hover { background: #fafcff; }
table.tb tbody tr:last-child td { border-bottom: none; }
table.tb .num { text-align: right; font-variant-numeric: tabular-nums; }
table.tb .center { text-align: center; }
table.tb .no-wrap { white-space: nowrap; }
table.tb .muted { color: var(--text-3); }
table.tb .strong { font-weight: 600; }
table.tb tfoot td { background: #f8fafd; font-weight: 600; border-top: 1px solid var(--border); }
.tb-empty { padding: 52px 20px; text-align: center; color: var(--text-3); }
.tb-empty .em-ico { font-size: 30px; margin-bottom: 8px; opacity: .5; }

/* ---------------- 徽标 ---------------- */
.badge {
    display: inline-flex; align-items: center; height: 20px; padding: 0 8px;
    border-radius: 20px; font-size: 11.5px; font-weight: 500; line-height: 1;
    background: #eef1f7; color: var(--text-2);
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger); }
.badge-warn    { background: var(--warn-bg);    color: var(--warn); }
.badge-info    { background: var(--info-bg);    color: var(--brand); }
.badge-gray    { background: #f0f2f6; color: var(--text-3); }

.tag-code {
    font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 12px;
    background: #f2f5fa; border: 1px solid var(--border); border-radius: 5px;
    padding: 1px 6px; color: var(--text-2);
}

/* ---------------- 统计卡 ---------------- */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; margin-bottom: 16px; }
.stat {
    background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
    padding: 16px 18px; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.stat::after {
    content: ''; position: absolute; right: -18px; top: -18px;
    width: 70px; height: 70px; border-radius: 50%; background: var(--brand-light); opacity: .7;
}
.stat .lbl { font-size: 12.5px; color: var(--text-2); margin-bottom: 6px; position: relative; }
.stat .val { font-size: 24px; font-weight: 700; letter-spacing: -.5px; position: relative; font-variant-numeric: tabular-nums; }
.stat .val small { font-size: 13px; font-weight: 500; color: var(--text-3); margin-left: 3px; }
.stat .sub { font-size: 11.5px; color: var(--text-3); margin-top: 4px; position: relative; }
.stat.s-green::after { background: var(--success-bg); }
.stat.s-red::after   { background: var(--danger-bg); }
.stat.s-warn::after  { background: var(--warn-bg); }

/* ---------------- 分页 ---------------- */
.pager { display: flex; align-items: center; justify-content: flex-end; gap: 5px; padding: 13px 18px; border-top: 1px solid var(--border); flex-wrap: wrap; }
.pager-info { font-size: 12.5px; color: var(--text-3); margin-right: auto; }
.pager-btn {
    min-width: 30px; height: 30px; padding: 0 9px; border-radius: 6px;
    display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--border-2); background: #fff; color: var(--text-2);
    font-size: 13px; transition: all .13s;
}
.pager-btn:hover { border-color: var(--brand-border); color: var(--brand); }
.pager-btn.active { background: var(--brand); border-color: var(--brand); color: #fff; font-weight: 600; }
.pager-btn.disabled { opacity: .45; pointer-events: none; }
.pager-gap { color: var(--text-3); padding: 0 2px; }

/* ---------------- 提示 ---------------- */
.toast-wrap { position: fixed; top: 16px; right: 16px; z-index: 999; display: flex; flex-direction: column; gap: 8px; }
.toast {
    min-width: 220px; max-width: 380px; padding: 11px 14px;
    background: #fff; border: 1px solid var(--border); border-left: 3px solid var(--brand);
    border-radius: 8px; box-shadow: var(--shadow-lg); font-size: 13.5px;
    animation: slideIn .22s ease;
}
.toast.success { border-left-color: var(--success); }
.toast.error   { border-left-color: var(--danger); }
.toast.warn    { border-left-color: var(--warn); }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px); } to { opacity: 1; transform: none; } }

.alert { padding: 11px 14px; border-radius: var(--radius-sm); font-size: 13.5px; margin-bottom: 14px; border: 1px solid transparent; }
.alert-info    { background: var(--info-bg);    border-color: var(--brand-border); color: var(--brand-dark); }
.alert-success { background: var(--success-bg); border-color: #bfe6cc; color: #15803d; }
.alert-danger  { background: var(--danger-bg);  border-color: #f5c9c9; color: #b91c1c; }
.alert-warn    { background: var(--warn-bg);    border-color: #f0dcb4; color: #b45309; }

/* ---------------- 弹层 ---------------- */
.modal-mask {
    position: fixed; inset: 0; background: rgba(15,23,42,.42);
    display: none; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-mask.show { display: flex; }
.modal {
    background: #fff; border-radius: 12px; box-shadow: var(--shadow-lg);
    width: 100%; max-width: 520px; max-height: 90vh; display: flex; flex-direction: column;
    animation: popIn .18s ease;
}
.modal.wide { max-width: 720px; }
.modal.xwide { max-width: 940px; }
@keyframes popIn { from { opacity: 0; transform: scale(.97) translateY(6px); } to { opacity: 1; transform: none; } }
.modal-head { padding: 15px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.modal-head h3 { margin: 0; font-size: 15px; font-weight: 600; }
.modal-close { border: none; background: none; font-size: 20px; line-height: 1; color: var(--text-3); cursor: pointer; padding: 0 2px; }
.modal-close:hover { color: var(--text); }
.modal-body { padding: 20px; overflow-y: auto; flex: 1; }
.modal-foot { padding: 13px 20px; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 9px; }

/* ---------------- 明细行表格（开单） ---------------- */
table.items { width: 100%; border-collapse: separate; border-spacing: 0; font-size: 13px; }
table.items th {
    background: #f8fafd; color: var(--text-2); font-size: 12px; font-weight: 600;
    padding: 8px 8px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap;
}
table.items td { padding: 5px 4px; border-bottom: 1px solid #f1f4f9; vertical-align: middle; }
table.items input, table.items select { height: 32px; font-size: 13px; }
table.items .col-idx { width: 38px; text-align: center; color: var(--text-3); }
table.items .col-qty { width: 92px; }
table.items .col-price { width: 100px; }
table.items .col-amount { width: 110px; text-align: right; font-variant-numeric: tabular-nums; font-weight: 600; }
table.items .col-op { width: 46px; text-align: center; }
.row-del { border: none; background: none; color: var(--text-3); cursor: pointer; font-size: 16px; line-height: 1; padding: 2px 5px; border-radius: 5px; }
.row-del:hover { background: var(--danger-bg); color: var(--danger); }
.sum-line { display: flex; justify-content: flex-end; gap: 26px; padding: 12px 4px 0; font-size: 13.5px; }
.sum-line b { font-size: 17px; color: var(--brand); font-variant-numeric: tabular-nums; }

/* 商品选择器 */
.picker { position: relative; }
.picker-input { cursor: pointer; }
.picker-pop {
    position: fixed; left: 0; top: 0; width: 340px; max-height: 300px;
    background: #fff; border: 1px solid var(--border-2); border-radius: 9px;
    box-shadow: var(--shadow-lg); z-index: 200; overflow: hidden; display: none;
}
.picker-pop.show { display: block; }
.picker-search { padding: 8px; border-bottom: 1px solid var(--border); }
.picker-list { max-height: 240px; overflow-y: auto; }
.picker-item { padding: 8px 11px; cursor: pointer; font-size: 13px; border-bottom: 1px solid #f6f8fc; display: flex; justify-content: space-between; gap: 10px; }
.picker-item:hover, .picker-item.hl { background: var(--brand-light); }
.picker-item .nm { font-weight: 500; }
.picker-item .meta { font-size: 11.5px; color: var(--text-3); }
.picker-item .pr { font-size: 12.5px; color: var(--brand); font-weight: 600; white-space: nowrap; }
.picker-empty { padding: 22px; text-align: center; color: var(--text-3); font-size: 13px; }

/* ---------------- 登录页 ---------------- */
.login-page {
    min-height: 100vh; display: flex; align-items: center; justify-content: center;
    background: radial-gradient(1100px 620px at 12% -8%, #e3edff 0%, rgba(227,237,255,0) 58%),
                radial-gradient(900px 520px at 108% 108%, #e6f4ee 0%, rgba(230,244,238,0) 55%),
                #f4f6fa;
    padding: 24px;
}
.login-card {
    width: 100%; max-width: 396px; background: #fff; border-radius: 16px;
    border: 1px solid var(--border); box-shadow: 0 18px 60px rgba(15,23,42,.1);
    padding: 34px 32px 28px;
}
.login-brand { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.login-brand .logo-mark { width: 36px; height: 36px; border-radius: 10px; font-size: 16px; }
.login-brand .t { font-size: 18px; font-weight: 700; letter-spacing: .3px; }
.login-sub { color: var(--text-3); font-size: 13px; margin: 0 0 24px; }
.login-card .form-item { margin-bottom: 14px; }
.login-card input { height: 40px; font-size: 14px; }
.login-tip { margin-top: 18px; padding: 11px 13px; background: #f8fafd; border: 1px dashed var(--border-2); border-radius: 8px; font-size: 12px; color: var(--text-3); line-height: 1.75; }
.login-tip code { background: #eef2f9; padding: 1px 5px; border-radius: 4px; color: var(--brand); font-size: 11.5px; }

/* ---------------- 其他 ---------------- */
.page-tip { font-size: 12.5px; color: var(--text-3); margin: -6px 0 14px; }
.inline-form { display: inline; }
.dot-sep { color: var(--border-2); margin: 0 6px; }
.text-right { text-align: right; } .text-center { text-align: center; }
.text-muted { color: var(--text-3); } .text-danger { color: var(--danger); }
.text-success { color: var(--success); } .text-brand { color: var(--brand); }
.mt-0 { margin-top: 0; } .mb-0 { margin-bottom: 0; } .mb-10 { margin-bottom: 10px; } .mb-16 { margin-bottom: 16px; }
.flex { display: flex; } .flex-between { display: flex; align-items: center; justify-content: space-between; }
.gap-8 { gap: 8px; } .gap-12 { gap: 12px; } .flex-wrap { flex-wrap: wrap; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

.stat-mini { display: flex; gap: 26px; flex-wrap: wrap; }
.stat-mini .m { font-size: 12.5px; color: var(--text-2); }
.stat-mini .m b { display: block; font-size: 17px; color: var(--text); font-variant-numeric: tabular-nums; }

.bar-chart { display: flex; align-items: flex-end; gap: 10px; height: 190px; padding: 10px 4px 0; }
.bar-chart .col { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; gap: 6px; }
.bar-chart .bar { width: 100%; max-width: 46px; border-radius: 5px 5px 0 0; background: linear-gradient(180deg,#5b8dfa,#2563eb); min-height: 2px; transition: height .5s; }
.bar-chart .bar.alt { background: linear-gradient(180deg,#7fd0a6,#16a34a); }
.bar-chart .cap { font-size: 11.5px; color: var(--text-3); white-space: nowrap; }
.bar-chart .amt { font-size: 11px; color: var(--text-2); font-variant-numeric: tabular-nums; }

.section-title { font-size: 13px; font-weight: 600; color: var(--text-2); margin: 4px 0 12px; padding-left: 9px; border-left: 3px solid var(--brand); line-height: 1.3; }
.detail-head { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 12px 20px; }
.detail-head .it { font-size: 13px; }
.detail-head .it .k { color: var(--text-3); font-size: 12px; }
.detail-head .it .v { font-weight: 500; }

@media (max-width: 1100px) {
    .stats { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .detail-head { grid-template-columns: repeat(2, minmax(0,1fr)); }
}
@media (max-width: 820px) {
    :root { --sidebar-w: 0px; }
    .sidebar { transform: translateX(-100%); transition: transform .2s; }
    .sidebar.open { transform: none; width: 216px; flex-basis: 216px; }
    .main { margin-left: 0; }
    .form-grid, .form-grid.cols-3 { grid-template-columns: 1fr; }
    .form-item.span-2 { grid-column: auto; }
    .content { padding: 14px; }
}