/* Teacher Tools — built on Polilo Coastal (polilo-tokens.css, loaded first).
   Layout and components follow brandon.web: admin shell, tabs, buttons, pills, fields. */

/* ---------- panel-only aliases on top of Polilo's tokens ---------- */
:root {
  --ok: var(--color-teal-600);
  --ok-soft: var(--color-teal-50);
  --bad: #e2483d;                /* Polilo coral, a step darker so text stays readable */
  --bad-soft: #ffedeb;
  --warn: #b86e00;
  --warn-soft: var(--color-warm-50);
  --info: var(--color-ocean-600);
  --info-soft: var(--color-ocean-50);
  --row-hover: #f8fbff;
  --step-lessons: var(--color-ocean-blue);
  --step-plan: var(--color-progress);
  --step-generate: var(--color-warm-400);
  --step-review: var(--color-sea-green);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; height: 100%; }
body {
  font-family: var(--font-body);
  font-size: 14px;
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--surface-page);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; font-family: var(--font-display); color: var(--text-primary); line-height: var(--leading-tight); letter-spacing: var(--tracking-tight); }
h2 { font-size: 16px; font-weight: var(--weight-bold); }
h3 { font-size: 11.5px; font-weight: var(--weight-extra); color: var(--text-tertiary); text-transform: uppercase; letter-spacing: var(--tracking-label); }
p { margin: 0; text-wrap: pretty; }
a { color: var(--text-link); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--color-ocean-600); }
code, pre, .mono { font-family: var(--font-mono); font-size: 12.5px; }
::selection { background: var(--color-ocean-200); color: var(--text-primary); }
:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 2px; }
* { scrollbar-width: thin; scrollbar-color: var(--color-stone-light) transparent; }

.muted { color: var(--text-secondary); }
.small { font-size: 12.5px; }
.nowrap { white-space: nowrap; }
.right { text-align: right; }
.grow { flex: 1; }
.hidden, [hidden] { display: none !important; }

/* ---------- shell (Polilo admin layout) ---------- */
.shell {
  height: 100vh; height: 100dvh;
  padding: 12px 24px 0;
  display: flex; flex-direction: column;
  background: var(--surface-page);
  overflow: hidden;
}
.shell__frame {
  width: min(1440px, 100%);
  flex: 1 1 auto; min-height: 0;
  margin: 0 auto;
  display: flex; flex-direction: column;
  background: var(--surface-card);
  border-radius: 22px 22px 0 0;
  box-shadow: var(--shadow-card);
  overflow: hidden;
}
.shell__header { flex: none; border-bottom: 1px solid var(--border-subtle); }

.bar { display: flex; align-items: center; gap: 18px; min-height: 74px; padding: 0 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex: none; }
.brand__mark { width: 38px; height: 38px; border-radius: 11px; object-fit: cover; box-shadow: var(--shadow-sm); display: block; }
.brand__name { font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 20px; letter-spacing: -0.02em; color: var(--text-primary); }
.brand__sub {
  font-family: var(--font-display); font-weight: var(--weight-bold); font-size: 13px; color: var(--text-secondary);
  padding-left: 12px; margin-left: 2px; border-left: 1px solid var(--border-default);
}
.brand:hover .brand__name { color: var(--text-primary); }
.bar__actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }

.account { position: relative; }
.account__trigger {
  display: flex; align-items: center; gap: 10px; padding: 4px 8px 4px 6px; border: 0; border-radius: var(--radius-md);
  background: transparent; cursor: pointer; height: auto; font: inherit; color: inherit;
}
.account__trigger:hover { background: var(--color-mist); }
.account__id { display: flex; flex-direction: column; line-height: 1.2; text-align: left; }
.account__id strong { font-family: var(--font-display); font-size: 13px; color: var(--text-primary); }
.account__id small { font-size: 11px; color: var(--text-tertiary); text-transform: capitalize; }
.account__caret { display: inline-flex; color: var(--text-tertiary); transition: transform var(--dur-fast) var(--ease-out); }
.account__caret.is-open { transform: rotate(180deg); }
.avatar {
  width: 40px; height: 40px; border-radius: 50%; flex: none; display: grid; place-items: center;
  background: var(--gradient-ocean-breeze); color: #fff; text-transform: uppercase;
  font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 14px;
  box-shadow: 0 0 0 3px #fff, 0 0 0 5px var(--color-ocean-100);
}
.menu {
  position: absolute; top: calc(100% + 8px); right: 0; z-index: 60; min-width: 224px; padding: 8px;
  display: flex; flex-direction: column; gap: 2px;
  background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-md); box-shadow: var(--shadow-lg);
}
.menu__item {
  display: flex; align-items: center; justify-content: flex-start; gap: 11px; width: 100%; padding: 9px 12px; border: 0; border-radius: var(--radius-sm);
  background: transparent; color: var(--text-primary); cursor: pointer; text-align: left; height: auto;
  font-family: var(--font-body); font-size: 14px; font-weight: var(--weight-semibold);
}
.menu__item:hover { background: var(--color-mist); }
.menu__item.is-danger { color: var(--bad); }
.menu__item .ico { width: 18px; text-align: center; color: var(--text-tertiary); }
.menu__sep { height: 1px; background: var(--border-subtle); margin: 4px 6px; }

/* tab row = navigation + pipeline steps */
.tabs-nav { display: flex; align-items: stretch; padding: 0 32px; }
.tabs__list { display: flex; align-items: stretch; gap: 2px; min-width: 0; overflow-x: auto; scrollbar-width: none; }
.tabs__list::-webkit-scrollbar { display: none; }
.tab {
  position: relative; display: inline-flex; align-items: center; gap: 8px; height: 48px; padding: 0 14px;
  text-decoration: none; white-space: nowrap; color: var(--text-secondary);
  font-family: var(--font-display); font-size: 14px; font-weight: var(--weight-semibold);
  border-bottom: 2px solid transparent; transition: color var(--dur-fast) var(--ease-out);
}
.tab:hover { color: var(--text-primary); }
.tab.is-active { color: var(--color-ocean-600); font-weight: var(--weight-bold); border-bottom-color: var(--color-ocean-blue); }
.tab__step {
  display: inline-grid; place-items: center; width: 20px; height: 20px; border-radius: 50%;
  font-size: 11px; font-weight: var(--weight-extra);
  background: var(--color-mist); color: var(--text-secondary);
}
.tab.is-active .tab__step { background: var(--color-ocean-blue); color: #fff; }
.tab__step.is-done { background: var(--color-teal-50); color: var(--color-teal-600); }
.tab__step.is-busy { background: var(--color-warm-100); color: var(--warn); animation: pulse 1.4s infinite; }
.tab__badge {
  display: inline-grid; place-items: center; min-width: 18px; height: 18px; padding: 0 6px; border-radius: var(--radius-pill);
  background: var(--color-coral); color: #fff; font-size: 10.5px; font-weight: var(--weight-extra);
}
.tab__badge.is-live { background: var(--color-warm-400); }
.tabs__sep { width: 1px; margin: 14px 8px; background: var(--border-default); flex: none; }
.tab__flow { color: var(--color-stone); font-size: 12px; margin: 0 -4px; align-self: center; }

.shell__main { flex: 1 1 auto; min-height: 0; display: flex; flex-direction: column; position: relative; }
.view { flex: 1; overflow: auto; padding: 28px 32px 48px; }
.view.tool { padding: 0; overflow: hidden; display: flex; flex-direction: column; }

.page-head { display: flex; align-items: flex-end; gap: 16px; margin-bottom: 24px; flex-wrap: wrap; }
.page-eyebrow {
  font-family: var(--font-display); font-size: 11.5px; font-weight: var(--weight-extra); color: var(--color-ocean-600);
  text-transform: uppercase; letter-spacing: var(--tracking-label); margin-bottom: 6px;
}
.page-eyebrow:empty { display: none; }
.page-title { font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 30px; letter-spacing: -0.02em; color: var(--text-primary); }

.toolbar {
  display: flex; align-items: center; gap: 10px; padding: 8px 32px; flex-wrap: wrap; min-height: 56px;
  background: var(--surface-page); border-bottom: 1px solid var(--border-subtle);
}
.tool-frame { flex: 1; width: 100%; border: 0; background: var(--surface-page); min-height: 0; }
.tool-body { flex: 1; overflow: auto; padding: 28px 32px 48px; min-height: 0; }

@keyframes pulse { 50% { opacity: .5; } }
@keyframes rise { from { transform: translateY(8px); opacity: 0; } }

/* ---------- layout helpers ---------- */
.grid { display: grid; gap: 20px; }
.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stack { display: grid; gap: 20px; }
.row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ---------- cards ---------- */
.card { background: var(--surface-card); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }
.card-h { display: flex; align-items: center; gap: 12px; padding: 16px 20px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; }
.card-b { padding: 20px; }
.card-b.flush { padding: 0; }
.card > .card-b.flush:last-child, .card > .pager:last-child { border-radius: 0 0 var(--radius-lg) var(--radius-lg); }

.stepcard {
  --accent: var(--color-ocean-blue);
  position: relative; overflow: hidden; padding: 20px; display: flex; flex-direction: column; gap: 10px; min-height: 188px;
  transition: transform var(--dur-normal) var(--ease-out), box-shadow var(--dur-normal) var(--ease-out);
}
.stepcard:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
.stepcard::before {
  content: ''; position: absolute; inset: 0 0 auto 0; height: 4px;
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent) 35%, white));
}
.stepcard.s-lessons { --accent: var(--step-lessons); }
.stepcard.s-plan { --accent: var(--step-plan); }
.stepcard.s-generate { --accent: var(--step-generate); }
.stepcard.s-review { --accent: var(--step-review); }
.stepcard .k {
  display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-size: 11.5px; font-weight: var(--weight-extra);
  color: var(--text-secondary); text-transform: uppercase; letter-spacing: var(--tracking-label);
}
.stepcard .k .n {
  width: 26px; height: 26px; border-radius: 9px; display: grid; place-items: center; font-size: 12px;
  background: color-mix(in srgb, var(--accent) 14%, white); color: color-mix(in srgb, var(--accent) 80%, var(--color-navy));
}
.stepcard .big { font-family: var(--font-display); font-size: 28px; font-weight: var(--weight-extra); letter-spacing: -0.02em; line-height: 1.15; }
.stepcard .foot { margin-top: auto; padding-top: 4px; }

.stat { display: grid; gap: 2px; }
.stat b { font-family: var(--font-display); font-size: 24px; font-weight: var(--weight-extra); letter-spacing: -0.01em; }
.stat span { font-size: 12.5px; color: var(--text-secondary); }

/* ---------- buttons (Polilo .btn) ---------- */
button, .btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px; flex-shrink: 0;
  height: 38px; padding: 0 16px; cursor: pointer; white-space: nowrap; text-decoration: none;
  border: 1px solid var(--border-default); border-radius: var(--radius-md);
  background: var(--surface-card); color: var(--text-primary);
  font-family: var(--font-display); font-size: 13.5px; font-weight: var(--weight-bold); line-height: 1;
  transition: filter var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
button:hover:not(:disabled), .btn:hover { background: var(--color-mist); color: var(--text-primary); text-decoration: none; }
button:active:not(:disabled), .btn:active { transform: scale(0.97); }
button:disabled { opacity: .55; cursor: not-allowed; }
button.primary, .btn.primary { background: var(--color-ocean-blue); border-color: transparent; color: var(--text-on-brand); }
button.primary:hover:not(:disabled), .btn.primary:hover { background: var(--color-ocean-blue); color: #fff; filter: brightness(1.06); }
button.brand, .btn.brand { background: var(--gradient-primary); border-color: transparent; color: #fff; box-shadow: var(--shadow-brand); }
button.brand:hover:not(:disabled) { background: var(--gradient-primary); filter: brightness(1.05); }
button.danger { color: var(--bad); }
button.danger:hover:not(:disabled) { background: var(--bad-soft); color: var(--bad); }
button.ghost { border-color: transparent; background: transparent; color: var(--text-secondary); }
button.ghost:hover:not(:disabled) { background: var(--color-mist); color: var(--text-primary); }
button.sm, .btn.sm { height: 32px; padding: 0 12px; font-size: 12.5px; border-radius: var(--radius-sm); }
button.lg { height: 52px; font-size: 15px; padding: 0 24px; }
button.block { width: 100%; }

/* ---------- fields (Polilo .input / .field) ---------- */
input, select, textarea {
  font: inherit; font-size: 14px; height: 40px; padding: 0 12px; min-width: 0;
  border: 1px solid var(--border-default); border-radius: var(--radius-md);
  background: var(--surface-card); color: var(--text-primary);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
select {
  appearance: none; -webkit-appearance: none; padding-right: 34px; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238e94a6' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 12px center;
}
input::placeholder { color: var(--text-tertiary); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--color-ocean-300); box-shadow: var(--shadow-focus); }
input[type=checkbox] { width: 17px; height: 17px; padding: 0; accent-color: var(--color-ocean-blue); box-shadow: none; }
input[type=file] { height: auto; }
label.field { display: flex; flex-direction: column; gap: 6px; font-family: var(--font-display); font-size: var(--text-label); font-weight: var(--weight-semibold); color: var(--text-primary); }
label.field input, label.field select { height: 46px; padding: 0 14px; font-family: var(--font-body); font-size: 15px; font-weight: 400; }
label.field select { padding-right: 34px; }
label.check { display: inline-flex; align-items: center; gap: 9px; font-size: 14px; cursor: pointer; }
.form { display: grid; gap: 16px; }
.form .actions { display: flex; gap: 8px; justify-content: flex-end; }
.field__hint { font-size: var(--text-helper); color: var(--text-tertiary); font-family: var(--font-body); font-weight: 400; }

/* ---------- tables ---------- */
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--border-subtle); vertical-align: middle; }
th {
  position: sticky; top: 0; z-index: 1; background: var(--surface-card);
  font-family: var(--font-display); font-size: 11px; font-weight: var(--weight-extra); color: var(--text-tertiary);
  text-transform: uppercase; letter-spacing: var(--tracking-label); padding-top: 10px; padding-bottom: 10px;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover td { background: var(--row-hover); }
tbody tr.clickable { cursor: pointer; }
tbody tr.selected td { background: var(--color-ocean-50); }
tbody tr.selected td:first-child { box-shadow: inset 3px 0 0 var(--color-ocean-blue); }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td b { font-family: var(--font-display); font-weight: var(--weight-bold); }
td .clip { display: block; max-width: 520px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.table-wrap { overflow: auto; }
.empty { padding: 40px 16px; text-align: center; color: var(--text-secondary); }

/* ---------- pills (Polilo .status-pill / .pill / .tag) ---------- */
.badge {
  display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: var(--radius-pill); white-space: nowrap;
  font-family: var(--font-display); font-size: 11.5px; font-weight: var(--weight-extra);
  background: var(--color-mist); color: var(--text-secondary);
}
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.info { background: var(--info-soft); color: var(--info); }
.badge .pip { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.live .pip { animation: pulse 1.2s infinite; }
.tag {
  display: inline-block; padding: 2px 9px; border-radius: var(--radius-pill); white-space: nowrap; align-self: center;
  font-family: var(--font-display); font-size: 10.5px; font-weight: var(--weight-extra); text-transform: uppercase; letter-spacing: var(--tracking-label);
  background: var(--color-ocean-50); color: var(--color-ocean-600);
}

/* ---------- progress (Polilo .progress) ---------- */
.progress { height: 7px; border-radius: var(--radius-pill); background: var(--color-cloud); overflow: hidden; min-width: 80px; }
.progress > i { display: block; height: 100%; border-radius: inherit; background: var(--color-ocean-blue); transition: width var(--dur-slow) var(--ease-out); }
.progress.split { display: flex; }
.progress.split > i { border-radius: 0; }
.progress.split > i.ok { background: var(--color-sea-green); }
.progress.split > i.bad { background: var(--color-coral); }

/* ---------- in-page tabs (same look as the shell tabs) ---------- */
.tabs { display: flex; gap: 2px; border-bottom: 1px solid var(--border-subtle); margin-bottom: 20px; }
.tabs button {
  height: 44px; border: 0; border-radius: 0; background: none; padding: 0 14px; margin-bottom: -1px;
  color: var(--text-secondary); font-weight: var(--weight-semibold); font-size: 14px; border-bottom: 2px solid transparent;
}
.tabs button:hover:not(:disabled) { background: none; color: var(--text-primary); }
.tabs button[aria-selected=true] { color: var(--color-ocean-600); font-weight: var(--weight-bold); border-bottom-color: var(--color-ocean-blue); }
.toolbar .tabs { margin: -8px 0; border: 0; align-self: stretch; }
.toolbar .tabs button { height: 56px; }

/* ---------- generation log ---------- */
.log {
  margin: 0; height: 420px; overflow: auto; padding: 14px 18px; white-space: pre-wrap; word-break: break-word;
  background: #1f2440; color: #d6dcf0; font-family: var(--font-mono); font-size: 12px; line-height: 1.6;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}
.log .err { color: #ff9a8f; }
.log .system { color: var(--color-ocean-300); }
.log .ok { color: var(--color-teal-300); }

/* ---------- notices, lists, feed ---------- */
.notice { padding: 12px 16px; border-radius: var(--radius-md); background: var(--color-ocean-50); color: var(--color-ocean-700); font-size: 13.5px; }
.notice.warn { background: var(--color-warm-50); color: #8a5300; }
.notice.bad { background: var(--bad-soft); color: #b8322a; }
.check-list { display: grid; gap: 8px; font-size: 13.5px; }
.check-list div { display: flex; gap: 10px; align-items: baseline; }
.check-list .y, .check-list .n {
  width: 20px; height: 20px; flex: none; border-radius: 50%; display: grid; place-items: center; font-size: 11px; font-weight: 800; align-self: center;
}
.check-list .y { background: var(--ok-soft); color: var(--ok); }
.check-list .n { background: var(--bad-soft); color: var(--bad); }
.feed { list-style: none; margin: 0; padding: 0; }
.feed li { display: flex; gap: 12px; align-items: center; padding: 12px 20px; border-bottom: 1px solid var(--border-subtle); font-size: 13.5px; }
.feed li:last-child { border-bottom: 0; }
.feed li b { font-family: var(--font-display); }
.feed time { color: var(--text-tertiary); font-size: 12px; white-space: nowrap; margin-left: auto; }
.pager { display: flex; align-items: center; gap: 10px; justify-content: flex-end; padding: 12px 16px; font-size: 12.5px; color: var(--text-secondary); border-top: 1px solid var(--border-subtle); }
.save-state { font-size: 12.5px; font-weight: var(--weight-bold); color: var(--text-tertiary); display: inline-flex; align-items: center; gap: 6px; }
.save-state.saved { color: var(--ok); }
.save-state.error { color: var(--bad); }

/* ---------- sign-in (Polilo auth layout) ---------- */
.auth-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; min-height: 100dvh; padding: 24px; background: var(--surface-page); }
.auth {
  width: min(1120px, 100%); min-height: min(640px, calc(100dvh - 48px));
  display: grid; grid-template-columns: 1.05fr 1fr; overflow: hidden;
  border-radius: 22px; background: var(--surface-card); box-shadow: var(--shadow-card);
}
.pitch {
  position: relative; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between; padding: 44px 0;
  background: url('/img/login-bg.png') center / cover no-repeat, var(--gradient-coastal-mesh-soft);
}
.pitch__brand { display: flex; align-items: center; gap: 11px; margin-left: 44px; }
.pitch__brand img { width: 44px; height: 44px; border-radius: 13px; object-fit: cover; box-shadow: var(--shadow-sm); }
.pitch__brand span { font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 23px; letter-spacing: -0.02em; color: var(--text-primary); }
.pitch__copy { position: relative; z-index: 1; padding: 28px 44px; }
.pitch__copy::before {
  content: ''; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: linear-gradient(90deg, rgba(248,251,255,.92) 0%, rgba(248,251,255,.74) 55%, transparent 100%);
}
.pitch__headline { max-width: 13ch; font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 40px; line-height: 1.1; letter-spacing: -0.02em; }
.pitch__body { margin-top: 14px; max-width: 34ch; color: var(--text-secondary); font-size: 15px; line-height: 1.55; }
.pane { display: flex; align-items: center; justify-content: center; padding: 44px; }
.pane__inner { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: 22px; }
.head__title { font-family: var(--font-display); font-weight: var(--weight-extra); font-size: 28px; letter-spacing: -0.01em; }
.head__sub { margin-top: 8px; color: var(--text-secondary); font-size: 14px; }
.form__error { padding: 10px 14px; border-radius: var(--radius-md); background: var(--bad-soft); color: var(--bad); font-size: 13px; font-weight: var(--weight-semibold); }
.auth-foot { text-align: center; font-size: 12.5px; color: var(--text-tertiary); }

/* ---------- dialog + toasts ---------- */
dialog {
  border: 1px solid var(--border-subtle); border-radius: var(--radius-xl); padding: 0; background: var(--surface-card); color: var(--text-primary);
  box-shadow: var(--shadow-lg); max-width: min(760px, calc(100vw - 32px)); width: 100%; animation: rise var(--dur-normal) var(--ease-out);
}
dialog::backdrop { background: var(--surface-overlay); backdrop-filter: blur(3px); }
dialog .d-h { padding: 18px 22px; border-bottom: 1px solid var(--border-subtle); display: flex; align-items: center; gap: 10px; }
dialog .d-h h2 { font-size: 18px; font-weight: var(--weight-extra); }
dialog .d-b { padding: 22px; max-height: 70vh; overflow: auto; }
dialog .d-f { padding: 14px 22px; border-top: 1px solid var(--border-subtle); display: flex; gap: 8px; justify-content: flex-end; background: var(--surface-page); }
dialog.narrow { max-width: 440px; }
pre.json { background: var(--color-mist); border-radius: var(--radius-md); padding: 14px; overflow: auto; max-height: 50vh; margin: 0; white-space: pre-wrap; word-break: break-word; }
dl.kv { display: grid; grid-template-columns: max-content 1fr; gap: 8px 18px; margin: 0 0 16px; font-size: 13.5px; }
dl.kv dt { color: var(--text-tertiary); font-family: var(--font-display); font-weight: var(--weight-semibold); }
dl.kv dd { margin: 0; }

#toasts { position: fixed; right: 20px; bottom: 20px; display: grid; gap: 10px; z-index: 1000; }
.toast {
  display: flex; gap: 12px; align-items: center; max-width: 440px; padding: 12px 16px; border-radius: var(--radius-md);
  background: var(--color-navy); color: #fff; font-size: 13.5px; font-weight: var(--weight-semibold); box-shadow: var(--shadow-lg);
  animation: rise var(--dur-normal) var(--ease-out);
}
.toast.ok { background: var(--color-teal-600); }
.toast.bad { background: #d23f35; }
.toast button { height: 30px; background: rgba(255,255,255,.16); border-color: transparent; color: #fff; }
.toast button:hover:not(:disabled) { background: rgba(255,255,255,.26); color: #fff; }

/* ---------- smaller screens ---------- */
@media (max-width: 1100px) {
  .cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand__sub, .account__id { display: none; }
}
@media (max-width: 860px) {
  .shell { padding: 0; }
  .shell__frame { border-radius: 0; }
  .bar { padding: 0 16px; min-height: 62px; }
  .tabs-nav { padding: 0 8px; }
  .view, .tool-body { padding: 20px 16px 40px; }
  .toolbar { padding: 8px 16px; }
  .page-title { font-size: 24px; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .auth { grid-template-columns: 1fr; }
  .pitch { min-height: 200px; padding: 28px 0; }
  .pitch__headline { font-size: 28px; }
  .pane { padding: 28px 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* Polilo "See details →" link */
.link-arrow {
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none; cursor: pointer;
  color: var(--color-ocean-600); font-family: var(--font-display); font-size: 14px; font-weight: var(--weight-bold);
}
.link-arrow:hover { color: var(--color-ocean-700); text-decoration: none; }
.card-h .link-arrow { font-size: 13px; }

/* ---------- course metadata (Lessons step) ---------- */
.tag.cat-vocabulary { --accent: var(--color-cat-vocabulary); }
.tag.cat-grammar { --accent: var(--color-cat-grammar); }
.tag.cat-communication { --accent: var(--color-cat-speaking); }
.tag.cat-conjugation { --accent: var(--color-teal-500); }
.tag.cat-pronunciation { --accent: var(--color-cat-pronunciation); }
.tag[class*="cat-"] {
  background: color-mix(in srgb, var(--accent) 13%, white);
  color: color-mix(in srgb, var(--accent) 70%, var(--color-navy));
}

.course-hero {
  display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 28px; padding: 24px 28px; position: relative; overflow: hidden;
  background: var(--gradient-coastal-mesh-soft);
}
.course-hero__title { font-size: 26px; font-weight: var(--weight-extra); letter-spacing: -0.02em; margin-bottom: 6px; }
.course-hero__main > p { max-width: 70ch; }
.course-hero__facts { display: flex; flex-wrap: wrap; gap: 6px 20px; margin-top: 14px; font-size: 13px; color: var(--text-secondary); }
.course-hero__facts b { font-family: var(--font-display); color: var(--text-primary); font-weight: var(--weight-bold); }
.course-hero__notes { margin-top: 14px; font-size: 13px; }
.course-hero__notes summary { cursor: pointer; color: var(--color-ocean-600); font-family: var(--font-display); font-weight: var(--weight-bold); }
.course-hero__notes dl { margin: 10px 0 0; }
.course-hero__side {
  display: flex; flex-direction: column; justify-content: center; gap: 12px; padding: 18px 20px;
  background: rgba(255, 255, 255, 0.78); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg); backdrop-filter: blur(6px);
}
.course-hero__side .stat b { font-size: 30px; }
.progress.split > i.warn { background: var(--color-warm-300); }
.legend { display: inline-flex; align-items: center; gap: 6px; font-weight: var(--weight-bold); }
.legend::before { content: ''; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.legend.ok { color: var(--ok); }
.legend.warn { color: var(--warn); }
a.legend:hover { text-decoration: underline; color: var(--warn); }

.cat-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; }
.cat-card {
  height: auto; display: grid; justify-items: start; justify-content: stretch; align-content: start; gap: 4px; padding: 16px 18px; text-align: left; white-space: normal;
  border-radius: var(--radius-lg); border: 1px solid var(--border-subtle); background: var(--surface-card); box-shadow: var(--shadow-xs);
  font-family: var(--font-body); font-weight: 400;
}
.cat-card:hover:not(:disabled) { background: var(--surface-card); box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.cat-card b { font-family: var(--font-display); font-size: 24px; font-weight: var(--weight-extra); margin-top: 6px; }
.cat-card span:not(.tag) { font-size: 12.5px; color: var(--text-secondary); }
.cat-card__warn { color: var(--warn); font-weight: var(--weight-bold); font-size: 12px; }
ul.items { margin: 0; padding-left: 18px; display: grid; gap: 3px; }
@media (max-width: 1100px) { .cat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .course-hero { grid-template-columns: 1fr; } }
@media (max-width: 860px) { .cat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }