/* 分销商门户 — 简约、无渐变 */

:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --border: #e2e8f0;
  --accent: #1e40af;
  --accent-hover: #1d4ed8;
  --danger: #b91c1c;
  --radius: 10px;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 15px;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* 登录 */
.screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.card {
  width: 100%;
  max-width: 400px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06);
}

.card h1 {
  margin: 0 0 8px;
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.card .subtitle {
  margin: 0 0 24px;
  font-size: 0.9rem;
  color: var(--muted);
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 6px;
}

input[type="text"],
input[type="password"],
select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font: inherit;
  background: var(--surface);
  color: var(--text);
}
input:focus,
select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  font: inherit;
  font-weight: 500;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
}
.btn:hover {
  background: var(--accent-hover);
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--bg);
}

.field {
  margin-bottom: 18px;
}

.error-msg {
  margin-top: 14px;
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--danger);
  background: #fef2f2;
  border: 1px solid #fecaca;
  border-radius: 8px;
  display: none;
}
.error-msg.visible {
  display: block;
}

/* 应用壳 */
#app {
  display: none;
  min-height: 100vh;
}

#app.visible {
  display: block;
}

.topbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.topbar .brand {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.topbar .meta {
  font-size: 0.85rem;
  color: var(--muted);
}

.topbar .actions {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav {
  display: flex;
  gap: 4px;
  padding: 0 24px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.nav button {
  padding: 12px 16px;
  font: inherit;
  font-size: 0.9rem;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.nav button:hover {
  color: var(--text);
}
.nav button.active {
  color: var(--accent);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

.panel {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: 0 1px 3px rgba(15, 23, 42, 0.04);
}

.panel.active {
  display: block;
}

.panel h2 {
  margin: 0 0 18px;
  font-size: 1.05rem;
  font-weight: 600;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.stat {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg);
}
.stat .label {
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}
.stat .value {
  font-size: 1.35rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}
.stat .hint {
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 16px;
}

.toolbar label {
  margin: 0;
  display: inline;
  margin-right: 6px;
}

.toolbar input,
.toolbar select {
  width: auto;
  min-width: 140px;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}

table.data th {
  color: var(--muted);
  font-weight: 500;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

table.data tbody tr:hover {
  background: var(--bg);
}

.pagination {
  margin-top: 16px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 0.88rem;
  color: var(--muted);
}

.empty {
  padding: 32px;
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
}

code {
  font-size: 0.86em;
  background: var(--bg);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}