:root {
  --bg: #eef2f6;
  --panel: #ffffff;
  --panel-soft: #f6f9fc;
  --line: #d8e0e8;
  --text: #15202b;
  --muted: #637381;
  --primary: #0f6cbd;
  --primary-dark: #0a4f8a;
  --success: #12724f;
  --warning: #9a6700;
  --danger: #b42318;
  --shadow: 0 12px 32px rgba(21, 32, 43, 0.08);
  --radius: 16px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(15, 108, 189, 0.08), transparent 30%),
    linear-gradient(180deg, #f7fafc 0%, #edf3f8 100%);
}

button, input, select, textarea { font: inherit; }

a { color: inherit; text-decoration: none; }

.shell {
  width: min(1360px, calc(100% - 32px));
  margin: 32px auto;
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.auth-stage {
  width: min(520px, 100%);
}

.panel,
.hero-bar,
.metric-card,
.day-block {
  background: var(--panel);
  border: 1px solid rgba(216, 224, 232, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.auth-panel {
  padding: 32px;
}

.hero-bar {
  padding: 24px 26px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

.hero-copy,
.brand,
.section-head,
.panel-head,
.day-head {
  display: grid;
  gap: 10px;
}

.eyebrow,
.section-note,
.hint,
.muted,
.pager,
.demo-note,
.brand p {
  color: var(--muted);
}

.eyebrow {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1, h2, h3, h4, p { margin: 0; }

h1 { font-size: 30px; line-height: 1.2; }
h2 { font-size: 24px; line-height: 1.25; }
h3 { font-size: 18px; line-height: 1.25; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip,
.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #f8fbfe;
  font-size: 13px;
}

.chip strong {
  margin-left: 6px;
  font-weight: 700;
}

.hero-actions,
.toolbar,
.inline-form,
.stack,
.row-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-actions,
.toolbar,
.inline-form {
  align-items: center;
}

.stack { flex-direction: column; }
.row-stack { flex-direction: column; }

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 14px 0;
}

.metric-card {
  padding: 18px;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric-card strong {
  display: block;
  margin-top: 10px;
  font-size: 28px;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.panel,
.day-block {
  padding: 22px;
}

.panel-head,
.day-head {
  margin-bottom: 16px;
}

.section-note {
  line-height: 1.6;
  font-size: 14px;
}

.form-card {
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--panel-soft);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.field-grid-wide {
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid rgba(15, 108, 189, 0.18);
  border-color: var(--primary);
}

button,
.btn,
.primary-btn,
.ghost-btn,
.text-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 15px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

button:hover,
.btn:hover,
.primary-btn:hover,
.ghost-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(21, 32, 43, 0.08);
}

.btn,
.primary-btn {
  background: var(--primary);
  color: #fff;
}

.btn:hover,
.primary-btn:hover {
  background: var(--primary-dark);
}

.btn-ghost,
.ghost-btn {
  background: #eef5fb;
  color: var(--primary-dark);
}

.btn-accent {
  background: var(--warning);
  color: #fff;
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.small { min-height: 36px; padding: 0 12px; }

.hint { font-size: 13px; line-height: 1.5; }

.alert {
  padding: 14px 16px;
  margin: 14px 0;
  border-radius: 12px;
  background: #eef5fb;
  border: 1px solid var(--line);
}

.alert.error {
  background: #fff3f1;
  border-color: #ffd4cd;
}

.toolbar {
  justify-content: space-between;
}

.table-wrap {
  margin-top: 14px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

table {
  width: 100%;
  min-width: 1080px;
  border-collapse: collapse;
}

th, td {
  padding: 12px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
  font-size: 14px;
}

th {
  position: sticky;
  top: 0;
  background: #f7fafc;
  color: var(--muted);
  z-index: 1;
}

tbody tr:hover { background: #f8fbfe; }

.customer-chip {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--primary);
  font-weight: 700;
  cursor: pointer;
}

.status-badge {
  background: #eef8f2;
  color: var(--success);
}

.remark {
  color: var(--warning);
}

.day-block {
  margin-top: 14px;
}

.day-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.table-shell {
  padding: 0;
}

.table-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.expander {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  background: #fff;
}

.expander summary {
  padding: 14px 16px;
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.expander summary::-webkit-details-marker { display: none; }
.expander-body { padding: 0 16px 16px; }

.pager {
  padding-top: 4px;
  font-size: 14px;
}

.hidden { display: none !important; }

.auth-panel .brand {
  text-align: center;
  margin-bottom: 22px;
}

.auth-panel .brand h1 {
  font-size: 28px;
}

.auth-panel .stack {
  margin-top: 20px;
}

.auth-panel .btn {
  width: 100%;
}

.inline-form input,
.inline-form select {
  width: auto;
  min-width: 120px;
}

@media (max-width: 1100px) {
  .metrics-grid,
  .section-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .shell {
    width: calc(100% - 18px);
    margin: 18px auto;
  }

  .metrics-grid,
  .section-grid {
    grid-template-columns: 1fr;
  }

  .hero-bar,
  .panel,
  .day-block,
  .auth-panel {
    padding: 16px;
  }

  .inline-form input,
  .inline-form select {
    width: 100%;
  }
}