:root {
  --bg: #f4f6f4;
  --surface: #ffffff;
  --surface-alt: #eef3ee;
  --primary: #24544a;
  --primary-soft: #dce9e4;
  --accent: #b7791f;
  --text: #1f2a27;
  --muted: #66716d;
  --border: #dde4df;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warning: #9a6700;
  --warning-soft: #fff4d6;
  --success: #216e4e;
  --success-soft: #dcf2e6;
  --radius: 12px;
  --shadow: 0 6px 20px rgba(31, 42, 39, 0.07);
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 "Segoe UI", system-ui, -apple-system, sans-serif;
}

h1, h2, h3 { margin: 0; line-height: 1.25; }
h1 { font-size: 24px; }
h2 { font-size: 19px; }
h3 { font-size: 16px; }
p { margin: 0; }

.loading { padding: 48px; color: var(--muted); }
.muted { color: var(--muted); }
.small { font-size: 13px; }
.brand { color: var(--primary); font-size: 18px; font-weight: 800; letter-spacing: 0.04em; }
.error { color: var(--danger); font-size: 14px; font-weight: 600; }

/* ------------------------------------------------------------- controls */

button {
  border-radius: 10px;
  border: 1px solid transparent;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  min-height: 40px;
  padding: 0 16px;
}
button:disabled { cursor: not-allowed; opacity: 0.55; }
.primary { background: var(--primary); color: #fff; }
.primary:hover:not(:disabled) { background: #1c453d; }
.ghost { background: transparent; border-color: var(--border); color: var(--text); }
.ghost:hover:not(:disabled) { background: var(--surface-alt); }
.danger { background: var(--danger); color: #fff; }
.warning { background: var(--warning); color: #fff; }

label { display: grid; gap: 6px; font-size: 14px; font-weight: 700; }
input, select, textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font: inherit;
  min-height: 40px;
  padding: 8px 12px;
  width: 100%;
}
textarea { min-height: 72px; resize: vertical; }
input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ---------------------------------------------------------------- login */

.login { display: grid; min-height: 100vh; place-items: center; padding: 24px; }
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow);
  display: grid;
  gap: 14px;
  max-width: 380px;
  padding: 28px;
  width: 100%;
}

/* ---------------------------------------------------------------- shell */

.shell { display: grid; grid-template-columns: 240px 1fr; min-height: 100vh; }
aside {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 16px;
}
aside nav { display: grid; gap: 2px; margin-top: 18px; }
aside nav a {
  border-radius: 10px;
  color: var(--text);
  display: block;
  font-weight: 600;
  padding: 10px 12px;
  text-decoration: none;
}
aside nav a:hover { background: var(--surface-alt); }
aside nav a[aria-current="page"] { background: var(--primary-soft); color: var(--primary); font-weight: 800; }
.sidebar-foot { border-top: 1px solid var(--border); display: grid; gap: 8px; margin-top: auto; padding-top: 14px; }

main { padding: 28px 32px 56px; }
.page-head { display: flex; align-items: flex-end; gap: 16px; justify-content: space-between; margin-bottom: 20px; }

/* ---------------------------------------------------------------- cards */

.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}
.card .value { font-size: 30px; font-weight: 800; line-height: 1.1; margin-top: 6px; }
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-top: 18px;
  padding: 20px;
}
.panel + .panel { margin-top: 16px; }
.grid-2 { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* --------------------------------------------------------------- tables */

table { border-collapse: collapse; width: 100%; }
th, td { border-bottom: 1px solid var(--border); padding: 10px 8px; text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase; }
tbody tr:hover { background: var(--surface-alt); }
.table-wrap { overflow-x: auto; }

.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; }
.toolbar input, .toolbar select { max-width: 260px; }
.tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 14px; }
.tabs button { background: var(--surface); border: 1px solid var(--border); min-height: 36px; }
.tabs button[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: #fff; }

/* --------------------------------------------------------------- badges */

.badge {
  border-radius: 999px;
  display: inline-block;
  font-size: 12px;
  font-weight: 800;
  padding: 4px 10px;
  white-space: nowrap;
}
.badge-PENDING_REVIEW { background: var(--primary-soft); color: var(--primary); }
.badge-REVISION_REQUIRED { background: var(--warning-soft); color: var(--warning); }
.badge-APPROVED { background: var(--success-soft); color: var(--success); }
.badge-REJECTED, .badge-SUSPENDED { background: var(--danger-soft); color: var(--danger); }
.badge-DRAFT, .badge-NOT_STARTED { background: var(--surface-alt); color: var(--muted); }

/* ---------------------------------------------------------------- detail */

.detail-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.kv { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.kv div { display: grid; gap: 2px; }
.kv dt, .kv .k { color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; }
.kv .v { font-weight: 600; overflow-wrap: anywhere; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { background: var(--surface-alt); border-radius: 999px; font-size: 13px; font-weight: 600; padding: 4px 10px; }
.timeline { display: grid; gap: 12px; list-style: none; margin: 0; padding: 0; }
.timeline li { border-left: 3px solid var(--primary-soft); padding-left: 12px; }
.notice { background: var(--warning-soft); border-radius: 10px; color: var(--warning); font-weight: 600; padding: 10px 12px; }
.notice-danger { background: var(--danger-soft); color: var(--danger); }
.back { background: none; border: none; color: var(--primary); font-weight: 700; padding: 0; min-height: auto; }

/* --------------------------------------------------------------- dialog */

dialog { border: none; border-radius: 16px; box-shadow: var(--shadow); max-width: 460px; padding: 0; width: calc(100% - 32px); }
dialog::backdrop { background: rgba(31, 42, 39, 0.45); }
.dialog-card { display: grid; gap: 12px; padding: 24px; }
.dialog-actions { display: flex; gap: 10px; justify-content: flex-end; }

@media (max-width: 820px) {
  .shell { grid-template-columns: 1fr; }
  aside { border-right: none; border-bottom: 1px solid var(--border); }
  aside nav { grid-auto-flow: column; grid-auto-columns: max-content; overflow-x: auto; }
  .sidebar-foot { border-top: none; margin-top: 8px; padding-top: 0; }
  main { padding: 20px 16px 48px; }
}