:root {
  --ink: #202225;
  --muted: #65717e;
  --line: #d7dde3;
  --paper: #f6f4ef;
  --surface: #fffdf8;
  --surface-2: #eef5f1;
  --primary: #0e5f56;
  --primary-2: #164b63;
  --accent: #bd4b2f;
  --gold: #b48a2c;
  --danger: #9e2f3b;
  --shadow: 0 18px 44px rgba(23, 31, 37, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(14, 95, 86, 0.08), transparent 38%),
    linear-gradient(315deg, rgba(189, 75, 47, 0.08), transparent 42%),
    var(--paper);
  font-family: "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", sans-serif;
  letter-spacing: 0;
}

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

button,
a.secondary,
.file-button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 13px;
  color: var(--ink);
  background: var(--surface);
  cursor: pointer;
  text-decoration: none;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

button:hover,
a.secondary:hover,
.file-button:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

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

.secondary {
  background: #fff;
}

.ghost {
  background: transparent;
}

.hidden {
  display: none !important;
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(460px, 100%);
  border: 1px solid rgba(14, 95, 86, 0.18);
  border-radius: 8px;
  padding: 32px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: var(--shadow);
}

.brand-lockup,
.side-brand {
  display: flex;
  align-items: center;
  gap: 13px;
}

.brand-mark {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 7px;
  color: #fff;
  background: var(--primary);
  font-weight: 800;
}

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

h1 {
  font-size: 27px;
}

h2 {
  margin-top: 4px;
  font-size: 26px;
}

h3 {
  font-size: 17px;
}

.brand-lockup p,
.hint,
.topbar p,
small {
  color: var(--muted);
}

.login-form {
  display: grid;
  gap: 16px;
  margin-top: 28px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  outline: none;
}

textarea {
  min-height: 112px;
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 95, 86, 0.12);
}

.code-line {
  display: grid;
  grid-template-columns: 1fr 92px;
  gap: 12px;
  align-items: end;
}

.app-shell {
  display: grid;
  grid-template-columns: 248px 1fr;
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 22px;
  border-right: 1px solid var(--line);
  padding: 22px;
  background: rgba(255, 253, 248, 0.92);
}

.nav-list {
  display: grid;
  gap: 8px;
}

.nav-list button {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
  background: transparent;
}

.nav-list button.active {
  border-color: rgba(14, 95, 86, 0.28);
  color: var(--primary);
  background: var(--surface-2);
}

.workspace {
  min-width: 0;
  padding: 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.top-actions,
.toolbar,
.inline-form {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.message,
.import-result {
  border: 1px solid var(--line);
  border-left: 4px solid var(--primary);
  border-radius: 8px;
  margin-bottom: 16px;
  padding: 12px 14px;
  background: #fff;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.metric-grid article,
.panel,
.branch-list article,
.demand-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 253, 248, 0.94);
  box-shadow: 0 12px 30px rgba(23, 31, 37, 0.07);
}

.metric-grid article {
  padding: 16px;
}

.metric-grid span {
  color: var(--muted);
}

.metric-grid strong {
  display: block;
  margin-top: 6px;
  color: var(--primary-2);
  font-size: 30px;
}

.split-layout {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 16px;
}

.panel {
  padding: 18px;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  margin-bottom: 14px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.form-grid textarea,
.form-grid button {
  grid-column: 1 / -1;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

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

th {
  color: var(--muted);
  font-weight: 700;
  background: rgba(238, 245, 241, 0.8);
}

td button {
  margin-right: 6px;
}

.badge {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 9px;
  color: var(--primary-2);
  background: var(--surface-2);
  font-size: 12px;
}

.badge.warn {
  color: #7a4f06;
  background: rgba(180, 138, 44, 0.18);
}

.badge.danger {
  color: var(--danger);
  background: rgba(158, 47, 59, 0.12);
}

.demand-list,
.demand-grid,
.branch-list {
  display: grid;
  gap: 12px;
}

.demand-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.demand-card {
  padding: 16px;
}

.demand-card header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.demand-card p {
  color: var(--muted);
  line-height: 1.6;
}

.demand-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.card-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.file-button input {
  display: none;
}

.branch-list {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 14px;
}

.branch-list article {
  padding: 15px;
}

@media (max-width: 900px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-list {
    grid-template-columns: repeat(3, 1fr);
  }

  .metric-grid,
  .split-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .workspace,
  .sidebar,
  .login-panel {
    padding: 16px;
  }

  .topbar,
  .code-line {
    grid-template-columns: 1fr;
  }

  .topbar {
    display: grid;
  }

  .nav-list {
    grid-template-columns: 1fr 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }
}