:root {
  --green-950: #0c4026;
  --green-900: #14532d;
  --green-800: #176b3a;
  --green-700: #238248;
  --green-100: #e8f6eb;
  --green-50: #f5fbf6;
  --ink: #173427;
  --muted: #5d7165;
  --border: #cfe1d3;
  --danger: #8f2f2f;
  --shadow: 0 14px 34px rgba(22, 84, 48, .13);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background: linear-gradient(180deg, #eef9f0, #f8fbf8 45%, #f1f7f2);
  font: 18px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}
button, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .58; }
a { color: inherit; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.skip-link { position: fixed; z-index: 100; top: -80px; left: 16px; padding: 12px 18px; border-radius: 12px; background: #fff; color: var(--green-900); box-shadow: var(--shadow); }
.skip-link:focus { top: 12px; }
.admin-topbar {
  position: sticky;
  z-index: 20;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  min-height: 76px;
  padding: 12px max(18px, calc((100vw - 1180px) / 2));
  color: #fff;
  background: linear-gradient(135deg, var(--green-900), var(--green-700));
  box-shadow: 0 8px 22px rgba(18, 79, 44, .2);
}
.brand-link { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark { font-size: 32px; }
.brand-link strong, .brand-link small { display: block; }
.brand-link strong { font-size: 1.1rem; }
.brand-link small { color: rgba(255,255,255,.9); }
.back-link { min-height: 48px; display: inline-flex; align-items: center; padding: 8px 16px; border: 1px solid rgba(255,255,255,.45); border-radius: 14px; text-decoration: none; font-weight: 800; }
.admin-main { width: min(calc(100% - 32px), 1180px); margin: 0 auto; padding: 26px 0 60px; }
.intro-panel, .auth-panel, .table-panel, .notice-panel {
  margin-bottom: 20px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(255,255,255,.96);
  box-shadow: var(--shadow);
}
.intro-panel { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(1.65rem, 4vw, 2.3rem); line-height: 1.2; }
h2 { margin-bottom: 0; font-size: 1.3rem; }
.intro-panel p:last-child, .helper-text, .notice-panel p { margin-bottom: 0; color: var(--muted); }
.eyebrow { margin: 0 0 2px; color: var(--green-700); font-size: .92rem; font-weight: 800; }
.status-chip { flex: 0 0 auto; min-height: 44px; display: inline-flex; align-items: center; padding: 7px 13px; border-radius: 999px; color: var(--green-900); background: var(--green-100); font-weight: 800; }
.status-chip.ok { color: #0b5a2c; background: #d9f4e0; }
.status-chip.error { color: var(--danger); background: #f8e1e1; }
.section-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 18px; margin-bottom: 16px; }
.auth-form label { display: block; margin-bottom: 7px; font-weight: 800; }
.input-action-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; }
input { min-height: 54px; width: 100%; border: 2px solid var(--border); border-radius: 14px; padding: 10px 13px; color: var(--ink); background: #fff; }
input:focus { border-color: var(--green-700); outline: 3px solid rgba(35,130,72,.18); }
.helper-text { margin-top: 8px; font-size: .92rem; }
.primary-button, .secondary-button, .text-button { min-height: 52px; border-radius: 14px; padding: 10px 18px; font-weight: 800; }
.primary-button { border: 0; color: #fff; background: linear-gradient(135deg, var(--green-800), var(--green-700)); }
.secondary-button { border: 1px solid var(--border); color: var(--green-900); background: var(--green-100); }
.text-button { border: 0; color: var(--green-900); background: transparent; text-decoration: underline; text-underline-offset: 3px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.summary-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.summary-grid article { min-height: 112px; display: flex; flex-direction: column; justify-content: center; padding: 16px; border: 1px solid var(--border); border-radius: 18px; background: #fff; box-shadow: 0 8px 22px rgba(20,83,45,.08); }
.summary-grid span { color: var(--muted); font-size: .92rem; }
.summary-grid strong { margin-top: 4px; color: var(--green-900); font-size: 1.55rem; }
.table-heading { align-items: center; }
.search-field { display: flex; align-items: center; gap: 10px; color: var(--muted); font-size: .92rem; }
.search-field input { min-height: 48px; width: min(300px, 42vw); }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 16px; }
table { width: 100%; min-width: 1040px; border-collapse: collapse; }
th, td { padding: 13px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { position: sticky; top: 0; color: var(--green-950); background: var(--green-100); white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: var(--green-50); }
.user-cell strong, .user-cell span { display: block; }
.user-cell span { color: var(--muted); font-size: .86rem; }
.empty-cell { padding: 30px; color: var(--muted); text-align: center; }
.notice-panel { border-left: 6px solid var(--green-700); }
.toast { position: fixed; z-index: 90; left: 50%; bottom: 24px; max-width: min(90vw, 600px); padding: 13px 18px; border-radius: 14px; color: #fff; background: rgba(12,64,38,.97); box-shadow: var(--shadow); opacity: 0; pointer-events: none; transform: translate(-50%, 18px); transition: .18s ease; }
.toast.visible { opacity: 1; transform: translate(-50%, 0); }
button:focus-visible, a:focus-visible, .table-wrap:focus-visible { outline: 4px solid #ffcf33; outline-offset: 3px; }
@media (max-width: 900px) { .summary-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  body { font-size: 17px; }
  .admin-topbar { padding-inline: 14px; }
  .back-link { padding-inline: 11px; }
  .admin-main { width: min(calc(100% - 20px), 1180px); padding-top: 14px; }
  .intro-panel { display: block; }
  .intro-panel .status-chip { margin-top: 14px; }
  .input-action-row { grid-template-columns: 1fr; }
  .input-action-row button { width: 100%; }
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .table-heading { display: block; }
  .search-field { display: block; margin-top: 14px; }
  .search-field input { width: 100%; margin-top: 5px; }
  .toolbar > * { flex: 1 1 100%; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; } }