/* === Design tokens === */
:root {
  --bg: #f7f6f3;
  --bg-elev: #ffffff;
  --bg-sunken: #f0eeea;
  --bg-hover: #f5f3ef;
  --line: #e6e3dd;
  --line-strong: #d4d0c8;
  --ink: #1a1815;
  --ink-2: #44423d;
  --ink-3: #6b6862;
  --ink-4: #a4a09a;
  --accent: #2b4d7e;
  --accent-hover: #1f3a62;
  --accent-soft: #e8eef6;
  --accent-ink: #1f3a62;
  --success: #2f6b4a;
  --success-soft: #e3efe7;
  --warn: #8a5a14;
  --warn-soft: #f5ead2;
  --danger: #9b2c2c;
  --danger-soft: #f6e2e2;
  --info: #3a5b85;
  --info-soft: #e6edf6;

  --radius-xs: 4px;
  --radius-sm: 6px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-sm: 0 1px 0 rgba(20, 18, 15, 0.04);
  --shadow-md: 0 1px 2px rgba(20, 18, 15, 0.05), 0 4px 12px rgba(20, 18, 15, 0.04);
  --shadow-pop: 0 8px 24px rgba(20, 18, 15, 0.10), 0 2px 6px rgba(20, 18, 15, 0.06);

  --font-sans: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Sans",
    "Yu Gothic", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  --sidebar-width: 232px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 14px;
  line-height: 1.55;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: none; }

.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* === App shell === */
.app {
  display: flex;
  flex-direction: row;
  min-height: 100vh;
}

/* === Sidebar === */
.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--bg-elev);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
}

.main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

/* === Brand === */
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 18px 16px;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
}
.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 13px;
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.brand-name { font-weight: 600; font-size: 14px; letter-spacing: 0.02em; color: var(--ink); }
.brand-sub { font-size: 11px; color: var(--ink-3); margin-top: 1px; }

/* === Nav === */
.nav { padding: 12px 10px; flex: 1; overflow-y: auto; }
.nav-section {
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-4);
  padding: 14px 10px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 6px;
  color: var(--ink-2);
  cursor: pointer;
  font-size: 13px;
  border: 1px solid transparent;
  user-select: none;
  text-decoration: none;
  margin-bottom: 1px;
}
.nav-item:hover { background: var(--bg-hover); color: var(--ink); }
.nav-item.active { background: var(--accent-soft); color: var(--accent-ink); font-weight: 600; }
.nav-item .nav-ico {
  font-size: 16px;
  width: 16px;
  text-align: center;
  opacity: 0.85;
  flex-shrink: 0;
  line-height: 1;
}

.nav-foot {
  border-top: 1px solid var(--line);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-foot .logout-link {
  margin-left: auto;
  color: var(--ink-4);
  font-size: 16px;
  text-decoration: none;
  line-height: 1;
}
.nav-foot .logout-link:hover { color: var(--danger); }

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 600;
  font-size: 12px;
  flex-shrink: 0;
}
.avatar-name { font-weight: 600; font-size: 12.5px; line-height: 1.2; }
.avatar-sub { font-size: 11px; color: var(--ink-3); line-height: 1.2; }

/* === Page === */
.page { padding: 28px 32px 60px; max-width: 1480px; margin: 0 auto; width: 100%; }
.page-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}
.page-title {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--ink);
}
.page-sub { font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.breadcrumb {
  font-size: 12px;
  color: var(--ink-3);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb a { color: var(--ink-3); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { color: var(--ink-4); }

/* === Cards === */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.card-pad { padding: 20px 22px; }
.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 22px;
  border-bottom: 1px solid var(--line);
  gap: 16px;
}
.card-title { font-size: 13px; font-weight: 600; letter-spacing: 0.02em; }
.card-sub { font-size: 11.5px; color: var(--ink-3); margin-top: 2px; }

/* KPI card */
.kpi {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  position: relative;
  overflow: hidden;
}
.kpi-label { font-size: 12px; color: var(--ink-3); font-weight: 500; }
.kpi-value { font-size: 28px; font-weight: 600; letter-spacing: -0.01em; font-family: var(--font-mono); }
.kpi-value .unit { font-size: 13px; color: var(--ink-3); font-weight: 500; margin-left: 4px; font-family: var(--font-sans); }
.kpi-foot { display: flex; align-items: center; gap: 10px; font-size: 11.5px; color: var(--ink-3); margin-top: 2px; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  color: var(--ink);
  cursor: pointer;
  user-select: none;
  transition: background 80ms ease, border-color 80ms ease;
  text-decoration: none;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-hover); color: var(--ink); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff !important; }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-ghost { border-color: transparent; background: transparent; }
.btn-ghost:hover { background: var(--bg-hover); }
.btn-danger { color: var(--danger) !important; border-color: var(--danger-soft); background: var(--danger-soft); }
.btn-danger:hover { background: var(--danger-soft); border-color: var(--danger); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* === Input === */
.input, .select, .textarea {
  height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--bg-elev);
  color: var(--ink);
  font-size: 13px;
  width: 100%;
  outline: none;
  transition: border-color 80ms ease, box-shadow 80ms ease;
}
.textarea { padding: 10px 12px; height: auto; resize: vertical; min-height: 80px; line-height: 1.55; }
.input:focus, .select:focus, .textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.input::placeholder { color: var(--ink-4); }
.input-with-ico { position: relative; }
.input-with-ico .input { padding-left: 32px; }
.input-with-ico .ico-prefix {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--ink-4);
  pointer-events: none;
  font-size: 14px;
  line-height: 1;
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--ink-2);
  display: flex;
  align-items: center;
  gap: 4px;
}
.field-label .req { color: var(--danger); }
.field-help { font-size: 11.5px; color: var(--ink-4); }

/* === Badges === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.badge.active    { background: var(--success-soft); color: var(--success); }
.badge.storage   { background: var(--bg-sunken); color: var(--ink-3); }
.badge.repair    { background: var(--info-soft); color: var(--info); }
.badge.disposed  { background: var(--danger-soft); color: var(--danger); }
.badge.lost      { background: var(--warn-soft); color: var(--warn); }
.badge.admin     { background: var(--accent-soft); color: var(--accent-ink); }
.badge.editor    { background: var(--info-soft); color: var(--info); }
.badge.viewer    { background: var(--bg-sunken); color: var(--ink-3); }
.badge .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* === Table === */
.table-wrap { overflow-x: auto; }
.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13px;
}
.table thead th {
  text-align: left;
  font-weight: 600;
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 10px 14px;
  background: var(--bg-sunken);
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
.table thead th.right { text-align: right; }
.table tbody td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  vertical-align: middle;
}
.table tbody tr:hover td { background: var(--bg-hover); cursor: pointer; }
.table tbody tr:last-child td { border-bottom: 0; }
.table .muted { color: var(--ink-3); }
.table .mono { font-family: var(--font-mono); }
.table td.right { text-align: right; }

/* === Pagination === */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 16px;
}
.pagi-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border-radius: 6px;
  font-size: 13px;
  border: 1px solid var(--line-strong);
  background: var(--bg-elev);
  color: var(--ink-2);
  text-decoration: none;
  cursor: pointer;
}
.pagi-btn:hover { background: var(--bg-hover); color: var(--ink); }
.pagi-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.pagi-btn.disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

/* === Filter bar === */
.filterbar {
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 16px 22px;
  border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
  background: var(--bg-elev);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.filterbar .field { min-width: 0; }
.filterbar .field-search { flex: 1; min-width: 200px; max-width: 340px; }

/* === Grid utilities === */
.row  { display: flex; gap: 16px; }
.col  { display: flex; flex-direction: column; gap: 16px; flex: 1; min-width: 0; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 700px) {
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .page { padding: 16px; }
}

/* === Definition list === */
.dl { display: grid; grid-template-columns: 140px 1fr; row-gap: 10px; column-gap: 18px; font-size: 13px; }
.dl dt { color: var(--ink-3); font-weight: 500; }
.dl dd { margin: 0; color: var(--ink); }
.dl dd.mono { font-family: var(--font-mono); }

/* === Section header === */
.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 0 0 12px;
}
.section-title { font-size: 14px; font-weight: 600; }
.section-sub { font-size: 12px; color: var(--ink-3); }

/* === Form === */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; }
.form-grid .full { grid-column: 1 / -1; }
.form-section { padding: 22px 24px; border-bottom: 1px solid var(--line); }
.form-section:last-child { border-bottom: 0; }
.form-section-title { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.form-section-sub { font-size: 12px; color: var(--ink-3); margin-bottom: 18px; }
.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--line);
  background: var(--bg-sunken);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

@media (max-width: 700px) {
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .full { grid-column: 1; }
}

/* === Flash messages === */
.flash {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 20px;
  border: 1px solid;
}
.flash-success { background: var(--success-soft); color: var(--success); border-color: #b8d9c6; }
.flash-error   { background: var(--danger-soft); color: var(--danger); border-color: #e8b8b8; }
.flash-warning { background: var(--warn-soft); color: var(--warn); border-color: #e0c882; }
.flash-info    { background: var(--info-soft); color: var(--info); border-color: #b6ccdf; }

/* === Misc === */
.divider { height: 1px; background: var(--line); margin: 4px 0; }
.muted { color: var(--ink-3); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-warn { color: var(--warn); }
.small { font-size: 12px; }
.xs { font-size: 11.5px; }
.flex { display: flex; align-items: center; gap: 8px; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-8  { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mt-16 { margin-top: 16px; }
.mt-20 { margin-top: 20px; }
.mt-24 { margin-top: 24px; }
.mb-8  { margin-bottom: 8px; }
.mb-12 { margin-bottom: 12px; }
.mb-16 { margin-bottom: 16px; }
.mb-20 { margin-bottom: 20px; }
.text-right { text-align: right; }
.text-center { text-align: center; }

/* Empty state */
.empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--ink-3);
}
.empty-icon { font-size: 32px; margin-bottom: 12px; opacity: 0.4; }
.empty-title { font-size: 14px; font-weight: 600; color: var(--ink-2); margin-bottom: 6px; }
.empty-sub { font-size: 12.5px; }

/* Search highlight */
mark { background: var(--warn-soft); color: var(--ink); padding: 0 2px; border-radius: 2px; }

/* Inline list (status breakdown etc.) */
.stat-list { list-style: none; margin: 0; padding: 0; }
.stat-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 13px;
}
.stat-list li:last-child { border-bottom: 0; }
.stat-list .stat-label { display: flex; align-items: center; gap: 8px; color: var(--ink-2); }
.stat-list .stat-ico { font-size: 15px; width: 18px; text-align: center; }
.stat-list .stat-count { font-family: var(--font-mono); font-weight: 600; color: var(--ink); }

/* Alert row for expiry warning */
.alert-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 22px;
  border-bottom: 1px solid var(--line);
  font-size: 12.5px;
}
.alert-row:last-child { border-bottom: 0; }
.alert-row a { color: var(--ink-2); flex: 1; min-width: 0; }
.alert-row a:hover { color: var(--accent); }
.alert-row .date-chip {
  font-family: var(--font-mono);
  font-size: 11.5px;
  padding: 2px 8px;
  border-radius: 4px;
  background: var(--warn-soft);
  color: var(--warn);
  flex-shrink: 0;
  margin-left: 8px;
}

/* QR print */
@media print {
  .sidebar, .page-head .btn, .filterbar { display: none !important; }
  .main { display: block; }
}

/* Mobile: collapse sidebar */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -240px;
    z-index: 200;
    transition: left 0.2s;
  }
  .sidebar.open { left: 0; }
  .main { margin-left: 0; }
  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--line-strong);
    border-radius: 6px;
    background: var(--bg-elev);
    cursor: pointer;
    font-size: 18px;
    color: var(--ink-2);
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 300;
  }
}
@media (min-width: 769px) {
  .menu-toggle { display: none; }
}