/* ==========================================================================
   Components: buttons, cards, forms, tables, badges, modals, toasts, quiz UI
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 42px; padding: 8px 16px; border-radius: 9px; border: 1px solid transparent;
  font-weight: 600; font-size: .94rem; line-height: 1.2; cursor: pointer; text-decoration: none;
  background: var(--surface); color: var(--text); white-space: nowrap; transition: background .12s, border-color .12s, color .12s;
}
.btn svg { width: 18px; height: 18px; flex: none; }
.btn-primary { background: var(--ink-700); color: #fff; }
.btn-primary:hover { background: var(--ink-800); color: #fff; }
.btn-accent { background: var(--marigold-500); color: var(--ink-900); }
.btn-accent:hover { background: var(--marigold-600); color: var(--ink-900); }
.btn-outline { border-color: var(--border-strong); background: var(--surface); color: var(--ink-800); }
.btn-outline:hover { border-color: var(--ink-500); background: var(--ink-50); }
.btn-ghost { background: transparent; color: var(--ink-700); }
.btn-ghost:hover { background: var(--ink-50); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #8f2019; color: #fff; }
.btn-danger-outline { border-color: #e7b1ac; color: var(--danger); background: var(--surface); }
.btn-danger-outline:hover { background: var(--danger-bg); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #115c3c; color: #fff; }
.btn-sm { min-height: 34px; padding: 5px 11px; font-size: .85rem; border-radius: 7px; }
.btn-sm svg { width: 16px; height: 16px; }
.btn-lg { min-height: 50px; padding: 12px 22px; font-size: 1.02rem; }
.btn-block { width: 100%; }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .5; cursor: not-allowed; pointer-events: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }

/* ---------- Cards & grids ---------- */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 18px; min-width: 0; }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.card-head h2, .card-head h3 { margin: 0; font-size: 1.05rem; }
.card-flat { box-shadow: none; }
.card-link { text-decoration: none; color: inherit; display: block; transition: border-color .12s, box-shadow .12s, transform .12s; }
.card-link:hover { border-color: var(--ink-500); box-shadow: var(--shadow); color: inherit; }
.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 260px), 1fr)); }
.grid-2 { display: grid; gap: 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: 16px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.split { display: grid; gap: 20px; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); align-items: start; }
.stack > * + * { margin-top: 12px; }

.stats { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 180px), 1fr)); }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; display: flex; gap: 12px; align-items: center; min-width: 0; }
.stat-icon { width: 42px; height: 42px; border-radius: 10px; display: grid; place-items: center; background: var(--ink-50); color: var(--ink-700); flex: none; }
.stat-icon svg { width: 22px; height: 22px; }
.stat-icon.accent { background: var(--marigold-100); color: var(--marigold-ink); }
.stat-icon.green { background: var(--success-bg); color: var(--success); }
.stat-icon.red { background: var(--danger-bg); color: var(--danger); }
.stat-value { font-size: 1.45rem; font-weight: 700; line-height: 1.1; color: var(--ink-900); }
.stat-label { font-size: .8rem; color: var(--muted); }

/* ---------- Badges, chips ---------- */
.badge { display: inline-flex; align-items: center; gap: 4px; font-size: .74rem; font-weight: 600; padding: 1px 9px; border-radius: 999px; background: var(--ink-50); color: var(--ink-700); white-space: nowrap; line-height: 1.6; }
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-danger { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--info-bg); color: var(--info); }
.badge-accent { background: var(--marigold-100); color: var(--marigold-ink); }
.badge-muted { background: #eef0f5; color: var(--muted); }
.badge-demo { background: #fff; border: 1px dashed var(--marigold-600); color: var(--marigold-ink); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--border-strong); background: var(--surface); cursor: pointer; font-size: .88rem; min-height: 36px; color: var(--text-2); }
.chip[aria-pressed="true"] { background: var(--ink-700); border-color: var(--ink-700); color: #fff; }
.meta-row { display: flex; flex-wrap: wrap; gap: 6px 12px; font-size: .82rem; color: var(--muted); align-items: center; }

/* ---------- Alerts / notices ---------- */
.notice { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); border: 1px solid; font-size: .9rem; margin-bottom: 16px; }
.notice svg { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.notice p:last-child { margin: 0; }
.notice-info { background: var(--info-bg); border-color: #bcd5f1; color: #163e6d; }
.notice-warning { background: var(--warning-bg); border-color: #f0d9a0; color: #5f3e00; }
.notice-danger { background: var(--danger-bg); border-color: #efbdb8; color: #7d1d17; }
.notice-success { background: var(--success-bg); border-color: #b4e0c9; color: #0f5236; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 14px 16px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.form-grid .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field > label, .field-label { font-size: .86rem; font-weight: 600; color: var(--text-2); }
.field .hint { font-size: .78rem; color: var(--muted); }
.field .error { font-size: .8rem; color: var(--danger); }
.input, .select, .textarea {
  width: 100%; min-height: 44px; padding: 9px 12px; border: 1px solid var(--border-strong); border-radius: 8px;
  background: var(--surface); color: var(--text); font-size: 1rem;
}
.textarea { min-height: 96px; resize: vertical; line-height: 1.5; }
.input:focus, .select:focus, .textarea:focus { border-color: var(--ink-500); box-shadow: var(--focus); outline: none; }
.input[aria-invalid="true"], .select[aria-invalid="true"] { border-color: var(--danger); }
.check { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; min-height: 32px; }
.check input { width: 18px; height: 18px; accent-color: var(--ink-700); }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: flex-end; margin-bottom: 16px; }
.toolbar .field { flex: 1 1 160px; }
.toolbar .search { flex: 2 1 240px; }
.input-icon { position: relative; }
.input-icon svg { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--muted); pointer-events: none; }
.input-icon .input { padding-left: 38px; }
fieldset { border: 1px solid var(--border); border-radius: var(--radius); padding: 12px 14px; margin: 0; min-width: 0; }
legend { font-weight: 600; font-size: .9rem; padding: 0 6px; color: var(--text-2); }

/* ---------- Dropzone & progress ---------- */
.dropzone { display: block; border: 2px dashed var(--border-strong); border-radius: var(--radius-lg); padding: 28px 18px; text-align: center; background: var(--surface-2); cursor: pointer; transition: border-color .12s, background .12s; }
.dropzone:hover, .dropzone.dragover { border-color: var(--ink-500); background: var(--ink-50); }
.dropzone svg { width: 40px; height: 40px; color: var(--ink-500); }
.dropzone strong { display: block; margin-top: 6px; color: var(--ink-800); }
.dropzone .file-picked { margin-top: 10px; font-weight: 600; color: var(--success); overflow-wrap: anywhere; }
.progress { height: 8px; background: var(--ink-100); border-radius: 999px; overflow: hidden; }
.progress > span { display: block; height: 100%; background: var(--ink-600); border-radius: 999px; transition: width .2s; }
.progress.accent > span { background: var(--marigold-500); }
.progress.green > span { background: var(--success); }

/* ---------- Tables (become cards on small screens; see responsive.css) ---------- */
.table-wrap { width: 100%; overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); }
.table { width: 100%; border-collapse: collapse; font-size: .92rem; }
.table th, .table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); vertical-align: top; }
.table th { font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); background: var(--surface-2); font-weight: 600; white-space: nowrap; }
.table tr:last-child td { border-bottom: 0; }
.table tbody tr:hover { background: var(--surface-2); }
.table .cell-title { font-weight: 600; color: var(--ink-900); overflow-wrap: anywhere; }
.table .cell-actions { white-space: nowrap; text-align: right; }
.table .cell-actions .btn { margin-left: 4px; }

/* ---------- Tabs ---------- */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--border); margin-bottom: 18px; overflow-x: auto; scrollbar-width: thin; }
.tab { padding: 10px 14px; border: 0; background: none; cursor: pointer; font-weight: 600; color: var(--muted); border-bottom: 3px solid transparent; white-space: nowrap; min-height: 44px; }
.tab[aria-selected="true"] { color: var(--ink-800); border-bottom-color: var(--marigold-500); }

/* ---------- Empty states ---------- */
.empty { text-align: center; padding: 36px 16px; color: var(--muted); border: 1px dashed var(--border-strong); border-radius: var(--radius-lg); background: var(--surface); }
.empty svg { width: 44px; height: 44px; color: var(--ink-500); opacity: .7; }
.empty h3 { margin: 8px 0 4px; color: var(--text); }
.empty p { max-width: 460px; margin: 0 auto 12px; }

/* ---------- Modal ---------- */
.modal-backdrop { position: fixed; inset: 0; background: rgba(15, 18, 40, .5); display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 200; }
.modal { background: var(--surface); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); width: 100%; max-width: 560px; max-height: calc(100dvh - 32px); display: flex; flex-direction: column; }
.modal.wide { max-width: 860px; }
.modal-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 16px 18px; border-bottom: 1px solid var(--border); }
.modal-head h2 { margin: 0; font-size: 1.1rem; }
.modal-body { padding: 18px; overflow-y: auto; }
.modal-foot { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; padding: 12px 18px; border-top: 1px solid var(--border); }

/* ---------- Toasts ---------- */
.toasts { position: fixed; right: 16px; bottom: 16px; z-index: 300; display: flex; flex-direction: column; gap: 8px; max-width: min(380px, calc(100vw - 32px)); }
.toast { background: var(--ink-900); color: #fff; padding: 11px 14px; border-radius: 10px; box-shadow: var(--shadow-lg); font-size: .9rem; display: flex; gap: 10px; align-items: flex-start; }
.toast.success { background: #0f5236; }
.toast.error { background: #7d1d17; }
.toast.warning { background: #5f3e00; }

/* ---------- Accordion / tree ---------- */
details.acc { border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); margin-bottom: 10px; }
details.acc > summary { list-style: none; cursor: pointer; padding: 12px 14px; display: flex; align-items: center; gap: 10px; font-weight: 600; min-height: 48px; }
details.acc > summary::-webkit-details-marker { display: none; }
details.acc > summary::after { content: ""; width: 9px; height: 9px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: rotate(-45deg); margin-left: auto; transition: transform .15s; flex: none; }
details.acc[open] > summary::after { transform: rotate(45deg); }
details.acc > .acc-body { padding: 0 14px 14px; }
.tree-row { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 8px; flex-wrap: wrap; }
.tree-row:hover { background: var(--surface-2); }
.tree-row .tr-title { flex: 1 1 180px; min-width: 0; overflow-wrap: anywhere; }
.tree-indent-1 { margin-left: 18px; border-left: 2px solid var(--ink-100); padding-left: 10px; }
.tree-indent-2 { margin-left: 18px; border-left: 2px solid var(--marigold-100); padding-left: 10px; }

/* ---------- List items ---------- */
.list { display: flex; flex-direction: column; }
.list-item { display: flex; gap: 12px; align-items: center; padding: 11px 0; border-bottom: 1px solid var(--border); min-width: 0; }
.list-item:last-child { border-bottom: 0; }
.list-item .li-main { flex: 1; min-width: 0; }
.list-item .li-title { font-weight: 600; color: var(--ink-900); overflow-wrap: anywhere; text-decoration: none; }
.li-icon { width: 38px; height: 38px; border-radius: 9px; display: grid; place-items: center; background: var(--ink-50); color: var(--ink-700); flex: none; }
.li-icon svg { width: 20px; height: 20px; }
.li-icon.pdf { background: #fde9e7; color: #b42b22; }

/* ---------- Charts (div-based, accessible) ---------- */
.hbar { display: grid; grid-template-columns: minmax(90px, 180px) 1fr auto; gap: 8px 12px; align-items: center; font-size: .88rem; }
.hbar .hb-label { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text-2); }
.hbar .hb-track { height: 12px; background: var(--ink-50); border-radius: 999px; overflow: hidden; }
.hbar .hb-fill { height: 100%; border-radius: 999px; background: var(--ink-600); }
.hbar .hb-fill.good { background: var(--success); }
.hbar .hb-fill.mid { background: var(--marigold-500); }
.hbar .hb-fill.low { background: var(--danger); }
.hbar .hb-val { font-weight: 600; font-variant-numeric: tabular-nums; min-width: 44px; text-align: right; }
.colchart { width: 100%; height: auto; display: block; }
.colchart text { font-size: 11px; fill: var(--muted); font-family: var(--font); }
.ring { --p: 0; width: 120px; aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; background: conic-gradient(var(--ring-color, var(--ink-600)) calc(var(--p) * 1%), var(--ink-100) 0); }
.ring > div { width: 76%; aspect-ratio: 1; background: var(--surface); border-radius: 50%; display: grid; place-items: center; text-align: center; line-height: 1.1; }
.ring strong { font-size: 1.5rem; color: var(--ink-900); }

/* ---------- Prose: notes reading ---------- */
.prose { font-size: 1.06rem; line-height: 1.75; color: var(--text); max-width: 78ch; overflow-wrap: break-word; }
.prose h2 { font-size: 1.3rem; margin: 1.6em 0 .5em; padding-bottom: .3em; border-bottom: 2px solid var(--marigold-100); }
.prose h3 { font-size: 1.12rem; margin: 1.3em 0 .4em; color: var(--ink-700); }
.prose h2:first-child, .prose h3:first-child { margin-top: 0; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .25em 0; }
.prose table { border-collapse: collapse; width: 100%; margin: 1em 0; font-size: .95rem; display: block; overflow-x: auto; }
.prose th, .prose td { border: 1px solid var(--border-strong); padding: 7px 10px; text-align: left; }
.prose th { background: var(--ink-50); }
.prose blockquote { margin: 1em 0; padding: 10px 14px; border-left: 4px solid var(--marigold-500); background: var(--marigold-100); border-radius: 0 8px 8px 0; }
.prose .callout, .prose .exam-point { margin: 1em 0; padding: 12px 14px; border-radius: 10px; background: var(--ink-50); border: 1px solid var(--ink-100); }
.prose .exam-point { background: var(--marigold-100); border-color: #f3dca4; }
.prose .definition { margin: .8em 0; padding: 10px 14px; border-left: 4px solid var(--ink-600); background: var(--surface-2); }
.prose img { height: auto; border-radius: 8px; }
.prose .src-ref { font-size: .8rem; color: var(--muted); }

/* ---------- Rich text editor ---------- */
.editor { border: 1px solid var(--border-strong); border-radius: var(--radius); background: var(--surface); }
.editor-toolbar { display: flex; flex-wrap: wrap; gap: 4px; padding: 6px; border-bottom: 1px solid var(--border); background: var(--surface-2); border-radius: var(--radius) var(--radius) 0 0; position: sticky; top: var(--topbar-h); z-index: 5; }
.editor-toolbar button { min-width: 36px; min-height: 36px; padding: 4px 8px; border: 1px solid transparent; background: none; border-radius: 6px; cursor: pointer; font-weight: 600; color: var(--text-2); }
.editor-toolbar button:hover { background: var(--ink-50); border-color: var(--border); }
.editor-toolbar .sep { width: 1px; background: var(--border); margin: 4px 2px; }
.editor-area { min-height: 360px; padding: 18px; outline: none; }
.editor-area:focus { box-shadow: inset 0 0 0 2px rgba(74, 89, 184, .35); }
.editor-source { width: 100%; min-height: 360px; font-family: var(--font-mono); font-size: .85rem; border: 0; padding: 14px; resize: vertical; }

/* ---------- Pipeline steps ---------- */
.steps { display: flex; gap: 4px; flex-wrap: wrap; margin-bottom: 18px; counter-reset: step; padding: 0; list-style: none; }
.steps li { counter-increment: step; display: flex; align-items: center; gap: 8px; padding: 6px 12px 6px 6px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); font-size: .84rem; color: var(--muted); font-weight: 600; }
.steps li::before { content: counter(step); width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; background: var(--ink-50); color: var(--ink-700); font-size: .78rem; }
.steps li.done { color: var(--success); border-color: #b4e0c9; }
.steps li.done::before { content: "✓"; background: var(--success); color: #fff; }
.steps li.active { color: var(--ink-800); border-color: var(--ink-500); background: var(--ink-50); }
.steps li.active::before { background: var(--ink-700); color: #fff; }

/* ---------- Quiz / exam ---------- */
.quiz { display: grid; grid-template-columns: minmax(0, 1fr) 290px; gap: 20px; align-items: start; }
.quiz-main { min-width: 0; }
.quiz-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; margin: -8px 0 14px; padding: 8px 0; position: sticky; top: var(--topbar-h); z-index: 20; background: var(--bg); }
.q-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.q-num { font-size: .82rem; font-weight: 700; color: var(--marigold-ink); text-transform: uppercase; letter-spacing: .05em; }
.q-text { font-size: 1.15rem; font-weight: 600; color: var(--ink-900); margin: 6px 0 4px; overflow-wrap: anywhere; }
.q-text-alt { font-size: 1.05rem; color: var(--text-2); margin-bottom: 4px; }
.q-options { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.q-option {
  display: flex; align-items: flex-start; gap: 12px; width: 100%; text-align: left; cursor: pointer;
  padding: 13px 14px; min-height: 54px; border: 2px solid var(--border); border-radius: 12px; background: var(--surface);
  font-size: 1rem; line-height: 1.45; transition: border-color .1s, background .1s;
}
.q-option:hover { border-color: var(--ink-500); background: var(--ink-50); }
.q-option .q-key { width: 30px; height: 30px; flex: none; border-radius: 50%; display: grid; place-items: center; background: var(--ink-50); color: var(--ink-700); font-weight: 700; font-size: .9rem; }
.q-option .q-opt-text { flex: 1; min-width: 0; overflow-wrap: anywhere; padding-top: 2px; }
.q-option .q-opt-alt { display: block; font-size: .92rem; color: var(--muted); }
.q-option[aria-checked="true"] { border-color: var(--ink-600); background: var(--ink-50); }
.q-option[aria-checked="true"] .q-key { background: var(--ink-700); color: #fff; }
.q-option.correct { border-color: var(--success); background: var(--success-bg); }
.q-option.correct .q-key { background: var(--success); color: #fff; }
.q-option.wrong { border-color: var(--danger); background: var(--danger-bg); }
.q-option.wrong .q-key { background: var(--danger); color: #fff; }
.q-option[disabled] { cursor: default; }
.q-feedback { margin-top: 14px; padding: 12px 14px; border-radius: 10px; background: var(--surface-2); border: 1px solid var(--border); }
.q-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: space-between; margin-top: 16px; }
.q-actions .grp { display: flex; flex-wrap: wrap; gap: 8px; }
.q-nav { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px; position: sticky; top: calc(var(--topbar-h) + 16px); }
.q-nav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(40px, 1fr)); gap: 6px; margin: 12px 0; max-height: 46vh; overflow-y: auto; padding: 2px; }
.q-nav-btn { aspect-ratio: 1; min-height: 40px; border-radius: 8px; border: 1px solid var(--border-strong); background: var(--surface); cursor: pointer; font-weight: 600; font-size: .88rem; position: relative; }
.q-nav-btn.answered { background: var(--success); border-color: var(--success); color: #fff; }
.q-nav-btn.marked { background: #6b46c1; border-color: #6b46c1; color: #fff; }
.q-nav-btn.answered.marked::after { content: ""; position: absolute; top: 3px; right: 3px; width: 7px; height: 7px; border-radius: 50%; background: var(--marigold-500); }
.q-nav-btn.current { box-shadow: 0 0 0 3px var(--marigold-500); }
.q-nav-btn.correct { background: var(--success); color: #fff; border-color: var(--success); }
.q-nav-btn.wrong { background: var(--danger); color: #fff; border-color: var(--danger); }
.legend { display: flex; flex-wrap: wrap; gap: 8px 12px; font-size: .78rem; color: var(--muted); }
.legend span::before { content: ""; display: inline-block; width: 11px; height: 11px; border-radius: 3px; margin-right: 5px; vertical-align: -1px; border: 1px solid var(--border-strong); }
.legend .lg-ans::before { background: var(--success); border-color: var(--success); }
.legend .lg-mark::before { background: #6b46c1; border-color: #6b46c1; }
.timer { display: inline-flex; align-items: center; gap: 8px; font-variant-numeric: tabular-nums; font-weight: 700; font-size: 1.1rem; padding: 6px 14px; border-radius: 999px; background: var(--ink-800); color: #fff; }
.timer svg { width: 18px; height: 18px; }
.timer.warn { background: var(--marigold-500); color: var(--ink-900); }
.timer.danger { background: var(--danger); color: #fff; animation: pulse 1s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: .75; } }

/* Result */
.result-hero { display: flex; flex-wrap: wrap; gap: 24px; align-items: center; }
.result-hero .rh-main { flex: 1 1 260px; min-width: 0; }
.review-item { border: 1px solid var(--border); border-radius: var(--radius); padding: 14px; margin-bottom: 10px; background: var(--surface); }
.review-item.ok { border-left: 4px solid var(--success); }
.review-item.bad { border-left: 4px solid var(--danger); }
.review-item.skip { border-left: 4px solid var(--border-strong); }
.review-opt { padding: 4px 8px; border-radius: 6px; margin: 3px 0; }
.review-opt.correct { background: var(--success-bg); color: var(--success); font-weight: 600; }
.review-opt.chosen-wrong { background: var(--danger-bg); color: var(--danger); text-decoration: line-through; }

/* PDF viewer */
.viewer-bar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; justify-content: space-between; padding: 10px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); margin-bottom: 12px; position: sticky; top: var(--topbar-h); z-index: 10; }
.viewer-pages { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.viewer-pages canvas { background: #fff; box-shadow: var(--shadow); border-radius: 4px; height: auto; }
.page-label { font-size: .78rem; color: var(--muted); }

/* Coming soon */
.coming-soon { text-align: center; padding: 48px 20px; background: linear-gradient(135deg, var(--ink-800), var(--ink-600)); color: #fff; border-radius: var(--radius-lg); }
.coming-soon h1 { color: #fff; }
.coming-soon .badge { background: var(--marigold-500); color: var(--ink-900); }

/* ---------- Auth forms ---------- */
.pw-wrap { position: relative; }
.pw-wrap .input { padding-right: 52px; }
.pw-toggle { position: absolute; right: 4px; top: 50%; transform: translateY(-50%); width: 44px; height: 40px; border: 0; background: none; border-radius: 8px; color: var(--muted); cursor: pointer; display: grid; place-items: center; }
.pw-toggle:hover, .pw-toggle.on { color: var(--ink-700); background: var(--ink-50); }
.pw-toggle svg { width: 20px; height: 20px; }
.pw-meter { display: flex; flex-direction: column; gap: 4px; margin-top: 4px; }
.pw-bar { display: block; height: 6px; border-radius: 999px; background: var(--ink-100); overflow: hidden; }
.pw-bar span { display: block; height: 100%; width: 0; border-radius: 999px; transition: width .15s; }
.auth-wrap { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px 14px; background: linear-gradient(160deg, var(--ink-50), var(--bg)); }
.auth-card { width: 100%; max-width: 480px; }
.auth-card.wide { max-width: 600px; }
.auth-brand { display: flex; align-items: center; gap: 10px; justify-content: center; margin-bottom: 16px; text-decoration: none; color: inherit; }
.auth-brand strong { font-size: 1.15rem; color: var(--ink-900); }
.auth-links { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px; margin-top: 14px; font-size: .92rem; }
.auth-links a { padding: 6px 0; }

.field .hint.text-danger, .text-danger { color: var(--danger); }
.field .hint.text-success, .text-success { color: var(--success); }
.portal-auth { display: flex; flex-wrap: wrap; gap: 8px; margin: -4px 0 4px; }
.portal-auth .btn { min-height: 40px; background: #fff; color: var(--ink-700); border: 0; }
.portal-auth .btn.btn-ghost-light { background: transparent; color: #fff; border: 1px solid rgba(255,255,255,.55); }
.legal h1 { font-size: 1.4rem; margin-bottom: 4px; }
.legal h2 { font-size: 1.02rem; margin: 18px 0 6px; }
.legal p, .legal li { line-height: 1.6; }

/* ---- Terms & Privacy: agreement screen and legal pages ---- */
.legal h3 { font-size: 1rem; margin: 18px 0 6px; }
.legal-meta { color: var(--muted); font-size: .9rem; margin: 0 0 8px; }
.legal-draft { background: var(--warning-bg, #fff4d6); color: #6b4a00; border-left: 4px solid #c98a00; padding: 8px 12px; border-radius: 8px; font-size: .9rem; }
.legal-toc ol { columns: 2 220px; margin: 8px 0 14px; padding-left: 1.4em; font-size: .9rem; }
.legal-toc li { break-inside: avoid; margin-bottom: 2px; }
.legal-contact { display: grid; grid-template-columns: max-content 1fr; gap: 2px 12px; margin: 8px 0; font-size: .93rem; }
.legal-contact dt { color: var(--muted); }
.legal-contact dd { margin: 0; overflow-wrap: anywhere; }
.legal-table { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 8px 0 12px; table-layout: fixed; }
.legal-table th, .legal-table td { overflow-wrap: anywhere; hyphens: auto; }
.legal-table th, .legal-table td { border: 1px solid var(--border); padding: 6px 8px; text-align: left; vertical-align: top; }
.legal-table th { background: var(--ink-50); }
mark.tbc { background: #ffe9a8; color: #4a3600; padding: 0 2px; border-radius: 3px; }
.legal-page { max-width: 820px; }
.link-btn { background: none; border: 0; padding: 0; color: var(--link, var(--ink-700)); text-decoration: underline; cursor: pointer; font: inherit; }
.ag-card { max-width: 860px; }
.ag-main h1 { font-size: clamp(1.25rem, 3.4vw, 1.6rem); margin-bottom: 8px; }
.ag-main h1:focus, .ag-main h1:focus-visible { outline: none; box-shadow: none; }
.ag-short { background: var(--ink-50); border-radius: 10px; padding: 10px 12px; }
.ag-tabs { display: flex; gap: 4px; border-bottom: 2px solid var(--border); margin-top: 14px; flex-wrap: wrap; }
.ag-tab { border: 0; background: none; padding: 10px 14px; min-height: 44px; font: inherit; font-weight: 600; color: var(--muted); border-bottom: 3px solid transparent; margin-bottom: -2px; cursor: pointer; }
.ag-tab.active { color: var(--ink-900); border-bottom-color: var(--marigold-500, #f2a900); }
.ag-tab:focus-visible { outline: 3px solid var(--ink-700); outline-offset: 2px; }
.ag-scroll { max-height: min(55vh, 520px); overflow-y: auto; border: 1px solid var(--border); border-radius: 10px; padding: 12px 16px; margin-top: 10px; background: #fff; -webkit-overflow-scrolling: touch; }
.ag-scroll:focus-visible { outline: 3px solid var(--ink-700); outline-offset: 2px; }
.ag-scroll h2 { font-size: 1.15rem; margin-top: 4px; }
.ag-scroll p, .ag-scroll li { line-height: 1.6; }
.ag-checks { border: 0; padding: 0; margin: 14px 0 0; display: grid; gap: 10px; }
.ag-check { align-items: flex-start; gap: 10px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: #fff; }
.ag-check input { width: 22px; height: 22px; margin-top: 2px; flex: none; }
.ag-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 12px; }
.ag-actions .btn { min-height: 46px; min-width: 160px; }
.field-error { color: var(--danger); font-weight: 600; min-height: 1.2em; margin: 8px 0 0; }
.ag-contact { margin-top: 18px; }
.ag-contact h2 { font-size: 1rem; }
.ag-links { padding-left: 1.2em; }
.ag-withdraw { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 12px; }
.ag-withdraw h2 { font-size: 1rem; }
@media (max-width: 520px) { .ag-actions .btn { flex: 1 1 100%; } .ag-scroll { padding: 10px 12px; max-height: 50vh; } .legal-contact { grid-template-columns: 1fr; } .legal-contact dd { margin-bottom: 6px; } }
.wm-layer { position: absolute; inset: 0; pointer-events: none; overflow: hidden; z-index: 2; }
.wm-layer span { position: absolute; white-space: nowrap; transform: rotate(-30deg); color: rgba(29, 36, 87, .10); font-size: 15px; font-weight: 700; user-select: none; }
@media print { .wm-layer span { color: rgba(0, 0, 0, .14); } }

/* ---- Trades (1.7): Owner's trade switcher and everyone else's trade label in the top bar ---- */
.trade-switch .select { min-height: 36px; padding: 4px 30px 4px 10px; font-size: .88rem; max-width: 220px; }
.trade-chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; background: var(--ink-50); color: var(--ink-700); font-size: .85rem; font-weight: 600; max-width: 220px; }
.trade-chip svg { width: 16px; height: 16px; flex: none; }
.trade-chip span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 640px) { .trade-switch .select { max-width: 130px; } .trade-chip { max-width: 120px; } .trade-chip svg { display: none; } }