/*
 * Shodog UI. All colours come from the tokens below; change --sd-primary to re-theme.
 * Layout surfaces are soft grey, white is only used for input fields.
 */
:root {
  --sd-primary: #334155;
  --sd-secondary: #94a3b8;
  --sd-primary-soft: color-mix(in srgb, var(--sd-primary) 12%, var(--sd-surface));
  --sd-primary-2: color-mix(in srgb, var(--sd-primary) 40%, #ffffff);
  --sd-primary-hover: color-mix(in srgb, var(--sd-primary) 85%, #000000);
  --sd-hero-1: color-mix(in srgb, var(--sd-primary) 55%, #ffffff);
  --sd-hero-2: color-mix(in srgb, var(--sd-primary) 35%, #ffffff);
  --sd-hero-3: color-mix(in srgb, var(--sd-secondary) 35%, #ffffff);

  --sd-bg: #eceef3;
  --sd-surface: #f7f8fa;
  --sd-field: #ffffff;
  --sd-border: #dde1e9;
  --sd-text: #1a1f36;
  --sd-text-2: #535a6e;
  --sd-icon: #6b7183;

  --sd-side-bg: var(--sd-surface);
  --sd-side-text: var(--sd-text-2);
  --sd-side-strong: var(--sd-text);
  --sd-side-hover: var(--sd-bg);
  --sd-side-line: var(--sd-border);
  --sd-side-active-bg: var(--sd-primary-soft);
  --sd-side-active-text: var(--sd-primary);
  --sd-side-indicator: var(--sd-primary);

  --sd-radius: 12px;
  --sd-radius-sm: 8px;
  --sd-shadow: 0 1px 3px rgba(16, 24, 40, .06);
  --sd-shadow-lg: 0 10px 30px rgba(26, 31, 54, .08);
  --sd-font: 'Poppins', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --sd-sidebar-w: 256px;
}

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

body {
  margin: 0;
  font-family: var(--sd-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--sd-text);
  background: var(--sd-bg);
}

a { color: var(--sd-primary); text-decoration: none; }
a:hover { color: var(--sd-primary-hover); }
h1, h2, h3 { margin: 0; font-weight: 600; }
svg { flex: none; }

.sd-sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* ---------- Buttons & fields ---------- */
.sd-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 40px; padding: 0 14px;
  border: 1px solid var(--sd-border); border-radius: var(--sd-radius-sm);
  background: var(--sd-surface); color: var(--sd-text);
  font: inherit; font-size: 13px; font-weight: 500; cursor: pointer;
  transition: background .15s, border-color .15s;
}
.sd-btn:hover { background: var(--sd-bg); color: var(--sd-text); }
.sd-btn:focus-visible, .sd-icon-btn:focus-visible { outline: 2px solid var(--sd-primary); outline-offset: 2px; }
.sd-btn-primary { border-color: var(--sd-primary); background: var(--sd-primary); color: var(--sd-field); }
.sd-btn-primary:hover { border-color: var(--sd-primary-hover); background: var(--sd-primary-hover); color: var(--sd-field); }
.sd-btn-block { width: 100%; min-height: 48px; border-radius: 10px; font-size: 15px; font-weight: 600; }
.sd-btn[disabled] { opacity: .65; cursor: progress; }

.sd-icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border: 0; border-radius: var(--sd-radius-sm);
  background: transparent; color: var(--sd-text-2); cursor: pointer;
}
.sd-icon-btn:hover { background: var(--sd-bg); }

.sd-field { display: flex; flex-direction: column; gap: 6px; }
.sd-label { font-size: 13px; font-weight: 500; }
.sd-input-wrap { position: relative; }
.sd-input-wrap > svg { position: absolute; left: 14px; top: 13px; color: var(--sd-icon); pointer-events: none; }
.sd-input {
  width: 100%; height: 46px; padding: 0 14px;
  border: 1px solid var(--sd-border); border-radius: 10px;
  background: var(--sd-field); color: var(--sd-text); font: inherit; font-size: 14px;
}
.sd-input-wrap > svg + .sd-input { padding-left: 44px; }
.sd-input:focus { outline: none; border-color: var(--sd-primary); box-shadow: 0 0 0 3px var(--sd-primary-soft); }
.sd-input.is-invalid { border-color: var(--sd-text-2); }

.sd-alert {
  display: flex; align-items: center; gap: 10px; padding: 10px 12px;
  border: 1px solid var(--sd-border); border-radius: 10px;
  background: var(--sd-bg); color: var(--sd-text); font-size: 13px;
}
.sd-alert svg { color: var(--sd-icon); }

/* ---------- Cards, tables, badges ---------- */
.sd-card {
  min-width: 0; background: var(--sd-surface);
  border: 1px solid var(--sd-border); border-radius: var(--sd-radius); box-shadow: var(--sd-shadow);
}
.sd-card-pad { padding: 20px; }
.sd-card-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; padding: 20px 20px 12px; }
.sd-card-title { font-size: 15px; font-weight: 600; }
.sd-muted { color: var(--sd-text-2); }
.sd-small { font-size: 12px; }

.sd-table-wrap { overflow-x: auto; }
.sd-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.sd-table th {
  padding: 10px 12px; border-bottom: 1px solid var(--sd-border);
  text-align: left; font-size: 12px; font-weight: 500; color: var(--sd-text-2); white-space: nowrap;
}
.sd-table td { padding: 12px; border-bottom: 1px solid var(--sd-border); }
.sd-table th:first-child, .sd-table td:first-child { padding-left: 20px; }
.sd-table th:last-child, .sd-table td:last-child { padding-right: 20px; }
.sd-table tbody tr:hover td { background: var(--sd-bg); }
.sd-table .num { text-align: right; font-variant-numeric: tabular-nums; }
.sd-table-empty { padding: 28px 20px !important; text-align: center; color: var(--sd-text-2); }

.sd-chip {
  display: inline-flex; align-items: center; height: 32px; padding: 0 12px;
  border-radius: 999px; background: var(--sd-primary-soft); color: var(--sd-primary);
  font-size: 12px; font-weight: 500; white-space: nowrap;
}

/* ---------- App shell ---------- */
.sd-shell { display: flex; min-height: 100vh; }

.sd-sidebar {
  position: sticky; top: 0; flex: 0 0 var(--sd-sidebar-w); width: var(--sd-sidebar-w); height: 100vh;
  display: flex; flex-direction: column;
  background: var(--sd-side-bg); color: var(--sd-side-text); border-right: 1px solid var(--sd-side-line);
}
.sd-brand {
  display: flex; align-items: center; gap: 10px; flex: none; height: 64px; padding: 0 20px;
  border-bottom: 1px solid var(--sd-side-line);
}
.sd-brand img { width: 28px; height: 28px; object-fit: contain; }
.sd-brand span { font-size: 17px; font-weight: 600; color: var(--sd-side-strong); }
.sd-nav { flex: 1; overflow-y: auto; display: flex; flex-direction: column; gap: 2px; padding: 16px 12px; }
.sd-nav-label { padding: 14px 12px 6px; font-size: 11px; font-weight: 500; letter-spacing: .8px; text-transform: uppercase; opacity: .75; }

.sd-item {
  position: relative; display: flex; align-items: center; gap: 12px; width: 100%; min-height: 42px; padding: 0 12px;
  border: 0; border-radius: var(--sd-radius-sm); background: transparent; color: var(--sd-side-text);
  font: inherit; font-size: 14px; text-align: left; cursor: pointer; transition: background .15s, color .15s;
}
.sd-item:hover { background: var(--sd-side-hover); color: var(--sd-side-strong); }
.sd-item:focus-visible, .sd-child:focus-visible { outline: 2px solid var(--sd-side-indicator); outline-offset: 2px; }
.sd-item.is-active { background: var(--sd-side-active-bg); color: var(--sd-side-active-text); font-weight: 500; }
.sd-item.is-active::before {
  content: ""; position: absolute; left: -12px; top: 9px; bottom: 9px; width: 3px;
  border-radius: 0 3px 3px 0; background: var(--sd-side-indicator);
}
.sd-item.has-active { color: var(--sd-side-strong); font-weight: 500; }
.sd-item > span { flex: 1; }
.sd-chev { transition: transform .2s; }
.sd-item[aria-expanded="true"] .sd-chev { transform: rotate(90deg); }

.sd-children { display: flex; flex-direction: column; gap: 2px; margin: 2px 0 6px 21px; border-left: 1px solid var(--sd-side-line); }
.sd-children[hidden] { display: none; }
.sd-child {
  display: flex; align-items: center; gap: 6px; min-height: 36px; margin-left: -1px; padding: 0 10px 0 13px;
  border-left: 2px solid transparent; border-radius: 0 6px 6px 0;
  font-size: 13px; color: var(--sd-side-text); transition: background .15s, color .15s;
}
.sd-child:hover { background: var(--sd-side-hover); color: var(--sd-side-strong); }
.sd-child.is-active { border-left-color: var(--sd-side-indicator); background: var(--sd-side-active-bg); color: var(--sd-side-active-text); font-weight: 500; }

.sd-main { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.sd-topbar {
  position: sticky; top: 0; z-index: 10;
  display: flex; align-items: center; gap: 12px; min-height: 64px; padding: 10px 24px;
  background: var(--sd-surface); border-bottom: 1px solid var(--sd-border);
}
.sd-topbar-spacer { flex: 1; }
.sd-menu-btn { display: none; }

.sd-account { position: relative; }
.sd-account-btn {
  display: flex; align-items: center; gap: 10px; height: 42px; padding: 0 8px;
  border: 0; border-radius: var(--sd-radius-sm); background: transparent; font: inherit; text-align: left; cursor: pointer;
}
.sd-account-btn:hover { background: var(--sd-bg); }
.sd-avatar {
  display: flex; align-items: center; justify-content: center; width: 32px; height: 32px; border-radius: 50%;
  background: var(--sd-primary-soft); color: var(--sd-primary); font-size: 12px; font-weight: 600;
}
.sd-account-name { display: flex; flex-direction: column; line-height: 1.2; }
.sd-account-name b { font-size: 13px; font-weight: 500; color: var(--sd-text); }
.sd-account-name small { font-size: 11px; color: var(--sd-text-2); }
.sd-dropdown {
  position: absolute; right: 0; top: calc(100% + 6px); min-width: 200px; padding: 6px;
  background: var(--sd-surface); border: 1px solid var(--sd-border); border-radius: 10px; box-shadow: var(--sd-shadow-lg);
}
.sd-dropdown[hidden] { display: none; }
.sd-dropdown button, .sd-dropdown a {
  display: flex; align-items: center; gap: 10px; width: 100%; height: 38px; padding: 0 10px;
  border: 0; border-radius: 6px; background: transparent; color: var(--sd-text); font: inherit; font-size: 13px; cursor: pointer;
}
.sd-dropdown button:hover, .sd-dropdown a:hover { background: var(--sd-bg); }

/* Centred, but wide enough that large screens are not mostly empty margin. */
.sd-content {
  flex: 1; width: 100%; max-width: 1600px; margin: 0 auto; padding: 24px 20px;
  display: flex; flex-direction: column; gap: 24px;
}
.sd-page-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; }
.sd-page-title { font-size: 22px; }
.sd-page-sub { margin: 4px 0 0; font-size: 13px; color: var(--sd-text-2); }
.sd-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.sd-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.sd-grid-kpi { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.sd-span-2 { grid-column: span 2; }

.sd-backdrop { display: none; }

@media (max-width: 991px) {
  .sd-sidebar {
    position: fixed; z-index: 30; left: 0; top: 0; transform: translateX(-100%); transition: transform .2s;
  }
  body.sd-nav-open .sd-sidebar { transform: none; box-shadow: var(--sd-shadow-lg); }
  body.sd-nav-open .sd-backdrop { display: block; position: fixed; inset: 0; z-index: 20; background: rgba(26, 31, 54, .3); }
  .sd-menu-btn { display: inline-flex; }
  .sd-topbar { padding: 10px 16px; }
  .sd-content { padding: 20px 16px; }
  .sd-span-2 { grid-column: auto; }
  .sd-account-name { display: none; }
}
@media (max-width: 400px) {
  .sd-grid { grid-template-columns: 1fr; }
}

/* ---------- Dashboard ---------- */
.sd-kpi { display: flex; flex-direction: column; gap: 12px; padding: 20px; }
.sd-kpi-head { display: flex; align-items: center; justify-content: space-between; font-size: 13px; color: var(--sd-text-2); }
.sd-kpi-icon {
  display: flex; align-items: center; justify-content: center; width: 36px; height: 36px;
  border-radius: var(--sd-radius-sm); background: var(--sd-primary-soft); color: var(--sd-primary);
}
.sd-kpi-value { font-size: 26px; font-weight: 600; letter-spacing: -.3px; font-variant-numeric: tabular-nums; }
.sd-kpi-note { font-size: 12px; color: var(--sd-text-2); }

.sd-legend { display: flex; gap: 16px; font-size: 12px; color: var(--sd-text-2); }
.sd-legend span { display: flex; align-items: center; gap: 6px; }
.sd-legend i { width: 10px; height: 10px; border-radius: 2px; }
.sd-bar-a { background: var(--sd-primary); }
.sd-bar-b { background: var(--sd-primary-2); }

.sd-bars { overflow-x: auto; padding: 0 20px 20px; }
.sd-bars-plot { display: flex; align-items: flex-end; gap: 12px; height: 220px; border-bottom: 1px solid var(--sd-border); }
.sd-bars-group { flex: 1 0 44px; height: 100%; display: flex; align-items: flex-end; justify-content: center; gap: 4px; }
.sd-bars-group > div { position: relative; width: 14px; min-height: 2px; border-radius: 3px 3px 0 0; }
.sd-bars-labels { display: flex; gap: 12px; padding-top: 8px; }
.sd-bars-labels > div { flex: 1 0 44px; text-align: center; font-size: 11px; color: var(--sd-text-2); overflow-wrap: anywhere; }

.sd-progress { height: 8px; border-radius: 4px; background: var(--sd-primary-soft); overflow: hidden; }
.sd-progress > div { height: 100%; border-radius: 4px; background: var(--sd-primary); }
.sd-kv { display: flex; justify-content: space-between; gap: 12px; font-size: 13px; }
.sd-kv span:first-child { color: var(--sd-text-2); }
.sd-kv span:last-child { font-weight: 500; font-variant-numeric: tabular-nums; }

/* ---------- Login ---------- */
.sd-login { min-height: 100vh; display: flex; flex-wrap: wrap; }
.sd-login-hero {
  flex: 1 1 480px; min-height: 320px; padding: 56px;
  display: flex; flex-direction: column; justify-content: space-between; gap: 32px;
  background: linear-gradient(135deg, var(--sd-hero-1) 0%, var(--sd-hero-2) 55%, var(--sd-hero-3) 100%);
}
.sd-login-brand { display: flex; align-items: center; gap: 14px; }
.sd-login-logo {
  display: flex; align-items: center; justify-content: center; width: 56px; height: 56px;
  border-radius: 14px; background: var(--sd-surface); box-shadow: var(--sd-shadow-lg);
}
.sd-login-logo img { width: 38px; height: 38px; object-fit: contain; }
.sd-login-hero h1 { max-width: 440px; margin: 0 0 14px; font-size: 38px; line-height: 1.2; font-weight: 700; }
.sd-login-hero p { max-width: 440px; margin: 0; font-size: 15px; line-height: 1.7; color: var(--sd-text-2); }
.sd-login-features { display: flex; flex-wrap: wrap; gap: 28px; font-size: 13px; }
.sd-login-features span { display: flex; align-items: center; gap: 8px; }
.sd-login-side { flex: 1 1 440px; padding: 48px 24px; display: flex; align-items: center; justify-content: center; }
.sd-login-card {
  width: 100%; max-width: 400px; padding: 40px 36px;
  display: flex; flex-direction: column; gap: 20px;
  background: var(--sd-surface); border: 1px solid var(--sd-border); border-radius: 14px; box-shadow: var(--sd-shadow-lg);
}
.sd-login-card h2 { margin: 0 0 6px; font-size: 24px; }
.sd-pass-toggle { position: absolute; right: 1px; top: 1px; width: 44px; height: 44px; color: var(--sd-icon); }
#txt_login_password { padding-right: 48px; }

@media (max-width: 600px) {
  .sd-login-hero { min-height: 0; padding: 28px 20px; }
  .sd-login-hero h1 { font-size: 26px; }
  .sd-login-features { display: none; }
  .sd-login-card { padding: 28px 20px; }
}

/* ---------- Page parts shared by modules ---------- */
.sd-breadcrumb { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 4px; padding: 0; list-style: none; font-size: 12px; color: var(--sd-text-2); }
.sd-breadcrumb li + li::before { content: "/"; margin-right: 6px; opacity: .6; }

.sd-badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 999px;
  background: var(--sd-primary-soft); color: var(--sd-primary); font-size: 11px; font-weight: 500; white-space: nowrap;
}
.sd-badge-muted { background: var(--sd-bg); color: var(--sd-text-2); }

.sd-row-actions { display: flex; justify-content: flex-end; gap: 4px; }
.sd-row-actions .sd-icon-btn { width: 34px; height: 34px; }
.sd-icon-btn[disabled] { opacity: .35; cursor: not-allowed; background: transparent; }

.sd-field-error { margin: 0; font-size: 12px; color: var(--sd-text); }
.sd-field-error::before { content: "• "; color: var(--sd-icon); }
.sd-hint { margin: 0; font-size: 12px; color: var(--sd-text-2); }

/* Native <dialog> used as a modal */
.sd-dialog {
  width: min(440px, calc(100vw - 32px)); padding: 0; border: 1px solid var(--sd-border); border-radius: 14px;
  background: var(--sd-surface); color: var(--sd-text); box-shadow: var(--sd-shadow-lg);
}
.sd-dialog::backdrop { background: rgba(26, 31, 54, .35); }
.sd-dialog-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 18px 20px 6px; }
.sd-dialog-head h2 { font-size: 17px; }
.sd-dialog-body { display: flex; flex-direction: column; gap: 14px; padding: 12px 20px 4px; }
.sd-dialog-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 16px 20px 20px; }

.sd-toast {
  position: fixed; left: 50%; bottom: 24px; z-index: 50; max-width: calc(100vw - 32px);
  padding: 12px 18px; border-radius: 10px; background: var(--sd-text); color: var(--sd-surface);
  font-size: 13px; box-shadow: var(--sd-shadow-lg);
  opacity: 0; transform: translate(-50%, 8px); pointer-events: none; transition: opacity .2s, transform .2s;
}
.sd-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

/* Checkbox list inside a dialog */
.sd-checklist { margin: 0; padding: 0; border: 0; min-width: 0; }
.sd-checklist legend { margin-bottom: 8px; padding: 0; }
.sd-checklist-items { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 4px 12px; max-height: 320px; overflow-y: auto; }
.sd-checklist-items label { display: flex; align-items: center; gap: 8px; min-height: 36px; font-size: 13px; cursor: pointer; }
.sd-checklist-items input { width: 16px; height: 16px; margin: 0; accent-color: var(--sd-primary); }

/* Filter bar above a table */
.sd-filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; padding: 20px; border-bottom: 1px solid var(--sd-border); }
.sd-filters .sd-input { height: 40px; font-size: 13px; }
.sd-filter-search { grid-column: span 2; }
@media (max-width: 400px) { .sd-filter-search { grid-column: auto; } }

/* Previous / next pager under a table */
.sd-pager { display: flex; align-items: center; justify-content: flex-end; gap: 12px; padding: 12px 20px; }

/* Full-page forms */
.sd-form { display: flex; flex-direction: column; gap: 20px; }
.sd-form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px 20px; }
.sd-form-actions { display: flex; justify-content: flex-end; gap: 8px; border-top: 1px solid var(--sd-border); padding-top: 16px; }

/* Compact inputs inside table rows; rows that cannot be acted on */
.sd-input-sm { height: 34px; padding: 0 8px; font-size: 13px; border-radius: 6px; }
.sd-row-muted td { color: var(--sd-text-2); }

/* Two-option switch (e.g. Present / Absent) built from radio buttons */
.sd-segmented { display: inline-flex; border: 1px solid var(--sd-border); border-radius: var(--sd-radius-sm); overflow: hidden; background: var(--sd-field); }
.sd-segmented input { position: absolute; opacity: 0; pointer-events: none; }
.sd-segmented label { min-width: 76px; padding: 7px 12px; text-align: center; font-size: 13px; color: var(--sd-text-2); cursor: pointer; user-select: none; }
.sd-segmented label + input + label { border-left: 1px solid var(--sd-border); }
.sd-segmented input:checked + label { background: var(--sd-primary); color: var(--sd-field); font-weight: 500; }
.sd-segmented input:focus-visible + label { outline: 2px solid var(--sd-primary); outline-offset: -2px; }

/* Search results under a search box */
.sd-search-results { display: flex; flex-direction: column; margin-top: 4px; border: 1px solid var(--sd-border); border-radius: var(--sd-radius-sm); background: var(--sd-field); max-height: 280px; overflow-y: auto; }
.sd-search-result { display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 8px; padding: 8px 12px; border: 0; border-bottom: 1px solid var(--sd-border); background: transparent; font: inherit; font-size: 13px; text-align: left; color: var(--sd-text); cursor: pointer; }
.sd-search-result:last-child { border-bottom: 0; }
.sd-search-result:hover, .sd-search-result:focus-visible { background: var(--sd-bg); outline: none; }
.sd-search-result .sd-small { flex-basis: 100%; }

/* On/off switch: <input type="checkbox" class="sd-switch" role="switch"> */
.sd-switch {
  appearance: none; position: relative; flex: none; width: 36px; height: 20px; margin: 0;
  border-radius: 999px; background: var(--sd-border); cursor: pointer; transition: background .15s;
}
.sd-switch::after {
  content: ""; position: absolute; top: 2px; left: 2px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--sd-field); box-shadow: 0 1px 2px rgba(16, 24, 40, .25); transition: transform .15s;
}
.sd-switch:checked { background: var(--sd-primary); }
.sd-switch:checked::after { transform: translateX(16px); }
.sd-switch:indeterminate { background: var(--sd-primary-2); }
.sd-switch:indeterminate::after { transform: translateX(8px); }
.sd-switch:disabled { opacity: .45; cursor: not-allowed; }
.sd-switch:focus-visible { outline: 2px solid var(--sd-primary); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) { .sd-switch, .sd-switch::after { transition: none; } }

/* Role permission editor */
.sd-perm { display: flex; flex-direction: column; gap: 16px; }
.sd-perm [hidden] { display: none; }
.sd-perm-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; padding: 12px 16px; }
.sd-perm-toolbar .sd-input-wrap { flex: 1 1 260px; }
.sd-perm-total { margin-right: auto; font-size: 13px; color: var(--sd-text-2); font-variant-numeric: tabular-nums; }
.sd-perm-grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(380px, 100%), 1fr)); align-items: start; }
.sd-perm-card { overflow: hidden; }
.sd-perm-head { display: flex; align-items: center; gap: 12px; padding: 14px 16px; border-bottom: 1px solid var(--sd-border); }
.sd-perm-icon { display: grid; place-items: center; flex: none; width: 36px; height: 36px; border-radius: var(--sd-radius-sm); background: var(--sd-primary-soft); color: var(--sd-primary); }
.sd-perm-head-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.sd-perm-head h2 { margin: 0; font-size: 14px; font-weight: 600; }
.sd-perm-count { font-size: 12px; color: var(--sd-text-2); font-variant-numeric: tabular-nums; }
.sd-perm-row { display: flex; align-items: center; gap: 12px; min-height: 56px; padding: 8px 16px; border-bottom: 1px solid var(--sd-border); cursor: pointer; transition: background .15s; }
.sd-perm-row:last-child { border-bottom: 0; }
.sd-perm-row:hover { background: var(--sd-bg); }
.sd-perm-row.is-on { background: color-mix(in srgb, var(--sd-primary-soft) 55%, var(--sd-surface)); }
.sd-perm-row.is-on:hover { background: var(--sd-primary-soft); }
.sd-perm-row.is-extra { padding-left: 36px; }
.sd-perm-row.is-extra .sd-perm-text { padding-left: 12px; border-left: 2px solid var(--sd-border); }
.sd-perm-row.is-disabled { cursor: default; }
.sd-perm-row.is-disabled .sd-perm-text { opacity: .55; }
.sd-perm-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.sd-perm-label { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--sd-text); }
.sd-perm-hint { font-size: 12px; color: var(--sd-text-2); }
.sd-perm-empty { margin: 0; padding: 28px; text-align: center; }
.sd-perm-savebar {
  position: sticky; bottom: 12px; z-index: 5; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px;
  padding: 12px 16px; border: 1px solid var(--sd-border); border-radius: var(--sd-radius);
  background: var(--sd-surface); box-shadow: var(--sd-shadow-lg);
}
.sd-perm-savebar-text { flex: 1 1 160px; font-size: 13px; color: var(--sd-text-2); }
.sd-perm-savebar.is-dirty { border-color: var(--sd-primary-2); }
.sd-perm-savebar.is-dirty .sd-perm-savebar-text { color: var(--sd-text); font-weight: 500; }
@media (prefers-reduced-motion: reduce) { .sd-perm-row { transition: none; } }

/* Tabs that switch between related reports (links) */
.sd-tabs { display: flex; gap: 4px; padding: 0 16px; border-bottom: 1px solid var(--sd-border); overflow-x: auto; }
.sd-tab {
  display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; margin-bottom: -1px;
  border-bottom: 2px solid transparent; color: var(--sd-text-2); font-size: 13px; font-weight: 500; white-space: nowrap;
}
.sd-tab:hover { color: var(--sd-text); }
.sd-tab.is-active { border-bottom-color: var(--sd-primary); color: var(--sd-primary); }
.sd-tab:focus-visible { outline: 2px solid var(--sd-primary); outline-offset: -2px; }

/* Library lending: student list beside the chosen student */
.sd-lend { display: grid; gap: 16px; grid-template-columns: minmax(260px, 340px) minmax(0, 1fr); align-items: start; margin-top: 16px; }
@media (max-width: 860px) { .sd-lend { grid-template-columns: 1fr; } }
.sd-lend-students { overflow: hidden; }
.sd-lend-list { max-height: 70vh; margin: 0; padding: 0 0 8px; list-style: none; overflow-y: auto; }
.sd-lend-list li[hidden] { display: none; }
.sd-lend-list a { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 10px 20px; color: var(--sd-text); border-left: 3px solid transparent; }
.sd-lend-list a:hover { background: var(--sd-bg); color: var(--sd-text); }
.sd-lend-list a.is-active { background: var(--sd-primary-soft); border-left-color: var(--sd-primary); }
.sd-lend-list a span:first-child, .sd-lend-books label span { display: flex; flex-direction: column; gap: 2px; min-width: 0; font-size: 13px; }
.sd-lend-list b, .sd-lend-books b { font-weight: 500; }
.sd-lend-list small, .sd-lend-books small { font-size: 12px; }
.sd-lend-heading { margin: 0; padding: 16px 20px 8px; font-size: 12px; font-weight: 600; color: var(--sd-text-2); text-transform: uppercase; letter-spacing: .04em; }
.sd-lend-books { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 8px; padding: 0 20px; }
.sd-lend-books label { display: flex; align-items: center; gap: 10px; min-height: 48px; padding: 8px 12px; border: 1px solid var(--sd-border); border-radius: var(--sd-radius-sm); background: var(--sd-field); cursor: pointer; }
.sd-lend-books label:has(input:checked) { border-color: var(--sd-primary); background: var(--sd-primary-soft); }
.sd-lend-books input { width: 16px; height: 16px; margin: 0; flex: none; accent-color: var(--sd-primary); }
.sd-lend-actions { display: flex; justify-content: flex-end; gap: 8px; padding: 12px 20px 16px; }

/* Account type switch on the sign-in card */
.sd-login-type { display: flex; width: 100%; margin: 0; padding: 0; }
.sd-login-type label { flex: 1; min-width: 0; padding: 9px 8px; }

/* Teacher and student portals: top bar instead of the staff sidebar */
.sd-portal { min-height: 100vh; display: flex; flex-direction: column; }
.sd-portal-bar {
  position: sticky; top: 0; z-index: 10; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 16px;
  padding: 10px 20px; border-bottom: 1px solid var(--sd-border); background: var(--sd-surface);
}
.sd-portal-brand { padding: 0; height: auto; border: 0; }
.sd-portal-nav { display: flex; flex-wrap: wrap; gap: 4px; }
.sd-portal-nav a { display: inline-flex; align-items: center; min-height: 36px; padding: 0 12px; border-radius: var(--sd-radius-sm); color: var(--sd-text-2); font-size: 13px; font-weight: 500; }
.sd-portal-nav a:hover { background: var(--sd-bg); color: var(--sd-text); }
.sd-portal-nav a.is-active { background: var(--sd-primary-soft); color: var(--sd-primary); }
.sd-portal-who { text-align: right; }
@media (max-width: 600px) { .sd-portal-who { display: none; } .sd-portal-bar { padding: 10px 16px; } }

/* Simple horizontal bar (a share of a maximum) */
.sd-bar { display: block; height: 8px; border-radius: 999px; background: var(--sd-bg); overflow: hidden; }
.sd-bar > span { display: block; height: 100%; border-radius: 999px; background: var(--sd-primary-2); }