/* SmileVision UI kit: design tokens + components shared by every workspace.
 *
 * Values are taken 1:1 from the studio design system (app/ceph/static/ceph_studio.css,
 * app/cbct/static/cbct_studio.css: .cs-* / .cb-*), so a page built from these classes
 * looks like Ceph Studio and CBCT Studio. Loaded globally from layouts/base_student.html.
 *
 * Naming: tokens are --sv-*; component classes are .svu-* (the .sv-card / .sv-btn-* names
 * are already taken by the sign-in pages). Nothing here styles bare elements, so including
 * this file never changes a page that does not use the classes.
 *
 * Theme: the student app is dark everywhere (dark-theme-core.css; dark-mode-handler.js only
 * toggles admin pages). Tokens are dark by default; .svu-light (or an admin page body in light
 * mode, body.bg-gray-100) switches a subtree to the light palette.
 *
 * Components
 *   .svu-btn [.primary|.ghost|.danger|.ok|.sm|.xs|.block]    .svu-icon[.on]     .svu-link
 *   .svu-seg > .svu-seg-btn[aria-pressed|aria-selected]      (segmented control: exclusive or toggles)
 *   .svu-chip [.ok|.warn|.bad|.info|.violet] (> .dot)         .svu-pill (count / status)
 *   .svu-card, .svu-h (section header), .svu-copy, .svu-note, .svu-empty
 *   .svu-tabs > .svu-tab[.active|aria-selected]
 *   .svu-row [.sel|.hl] (list rows), .svu-conf[.low] > i (confidence bar)
 *   .svu-toolbar > .svu-tgroup, .svu-zoom
 *   .svu-input, .svu-select, .svu-textarea, .svu-check (consent / checkbox line)
 *   .svu-fbar (feedback bar: question + actions + status)
 *   .svu-toasts > .svu-toast[.ok|.warn|.error]
 *   .svu-spin
 *   .svu-beta (small Beta badge), .svu-hint > p + .svu-hint-x (first-use tip; sv_hints.js)
 *   .svu-qw > .svu-q + .svu-qp ("?" help and its popover; sv_hints.js SVHints.help)
 *   .svu-modal > .svu-dialog (the in-app confirm / alert / prompt: sv_dialog.js), .svu-btn.danger-solid (its red OK)
 *   .svp > .svp-pill + .svp-chips, .svp-pop (the "This patient" strip in every studio's top bar: sv_patient.js, T13)
 */
:root {
  --sv-bg: #06090e;
  --sv-stage: #050914;
  --sv-panel: rgba(8, 14, 28, 0.66);
  --sv-panel-2: rgba(15, 23, 42, 0.55);
  --sv-field: #0b1220;
  --sv-control: #111827;
  --sv-toolbar: rgba(11, 17, 29, 0.96);
  --sv-line: rgba(255, 255, 255, 0.08);
  --sv-line-2: rgba(148, 163, 184, 0.16);
  --sv-line-3: rgba(148, 163, 184, 0.22);
  --sv-text: #d8dee9;
  --sv-text-2: #cbd5e1;
  --sv-text-strong: #f8fafc;
  --sv-muted: #94a3b8;
  --sv-faint: #7d8ba1;              /* small copy on the dark panels: WCAG AA (about 5.4:1 on #0b1220) */
  --sv-accent: #fb6340;
  --sv-accent-2: #f5a623;
  --sv-accent-rgb: 251, 99, 64;
  --sv-grad: linear-gradient(135deg, #f5a623 0%, #fb6340 100%);
  --sv-ok: #22c55e;
  --sv-ok-text: #86efac;
  --sv-warn: #f59e0b;
  --sv-warn-text: #fcd34d;
  --sv-bad: #ef4444;
  --sv-bad-text: #fca5a5;
  --sv-info: #38bdf8;
  --sv-info-text: #bae6fd;
  --sv-violet: #a78bfa;
  /* radii */
  --sv-r-xs: 7px;
  --sv-r-sm: 8px;
  --sv-r-md: 10px;
  --sv-r: 12px;
  --sv-r-lg: 14px;
  --sv-r-xl: 18px;
  --sv-r-pill: 999px;
  /* spacing */
  --sv-s1: 4px;
  --sv-s2: 6px;
  --sv-s3: 8px;
  --sv-s4: 10px;
  --sv-s5: 12px;
  --sv-s6: 14px;
  --sv-s7: 18px;
  /* type scale */
  --sv-font: "Open Sans", Inter, -apple-system, "Segoe UI", sans-serif;
  --sv-fs-2xs: 10.5px;
  --sv-fs-xs: 11px;
  --sv-fs-sm: 11.5px;
  --sv-fs: 12px;
  --sv-fs-md: 12.5px;
  --sv-fs-lg: 13.5px;
  --sv-fs-xl: 15px;
  --sv-shadow: 0 16px 40px rgba(0, 0, 0, .4);
  --sv-focus: 2px solid var(--sv-accent);
}

/* Vitalum brand (smile.vitalum.io): same components, green accent */
.svu-brand-vitalum {
  --sv-accent: #1ebf95;
  --sv-accent-2: #3dd4aa;
  --sv-accent-rgb: 30, 191, 149;
  --sv-grad: linear-gradient(135deg, #3dd4aa 0%, #159474 100%);
}

/* Light palette for admin pages in light mode (dark-mode-handler.js puts bg-gray-100 on body) */
.svu-light, body.bg-gray-100 .svu-themed {
  --sv-stage: #0b1220;
  --sv-panel: #ffffff;
  --sv-panel-2: #f8fafc;
  --sv-field: #ffffff;
  --sv-control: #ffffff;
  --sv-toolbar: #f1f5f9;
  --sv-line: rgba(15, 23, 42, 0.08);
  --sv-line-2: rgba(15, 23, 42, 0.12);
  --sv-line-3: rgba(15, 23, 42, 0.18);
  --sv-text: #1e293b;
  --sv-text-2: #334155;
  --sv-text-strong: #0f172a;
  --sv-muted: #475569;
  --sv-faint: #64748b;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.svu-btn {
  height: 30px; display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  border: 1px solid var(--sv-line-3); background: var(--sv-control); color: var(--sv-text-2);
  border-radius: var(--sv-r-sm); padding: 0 11px; margin: 0;
  font: 700 var(--sv-fs)/1 var(--sv-font); letter-spacing: 0; text-transform: none; text-decoration: none;
  white-space: nowrap; cursor: pointer; box-shadow: none; vertical-align: middle;
  transition: background .16s, border-color .16s, color .16s, opacity .16s, filter .16s;
}
.svu-btn:hover { background: rgba(var(--sv-accent-rgb), 0.12); border-color: rgba(var(--sv-accent-rgb), 0.5); color: var(--sv-text-strong); text-decoration: none; }
.svu-btn:focus { outline: none; }
.svu-btn:focus-visible, .svu-icon:focus-visible, .svu-tab:focus-visible, .svu-seg-btn:focus-visible,
.svu-row:focus-visible, .svu-link:focus-visible, .svu-chip:focus-visible { outline: var(--sv-focus); outline-offset: 2px; }
.svu-btn.primary { background: var(--sv-grad); border-color: rgba(var(--sv-accent-rgb), 0.86); color: #fff; box-shadow: 0 6px 18px rgba(var(--sv-accent-rgb), 0.24); }
.svu-btn.primary:hover { filter: brightness(1.06); color: #fff; }
.svu-btn.ghost { background: transparent; }
.svu-btn.ok { border-color: rgba(34, 197, 94, 0.55); }
.svu-btn.ok:hover, .svu-btn.ok[aria-pressed="true"] { background: rgba(34, 197, 94, 0.16); border-color: var(--sv-ok); color: #fff; }
.svu-btn.danger:hover, .svu-btn.danger[aria-pressed="true"] { background: rgba(239, 68, 68, 0.14); border-color: rgba(239, 68, 68, 0.5); color: #fff; }
.svu-btn[aria-pressed="true"]:not(.ok):not(.danger) { background: rgba(var(--sv-accent-rgb), 0.18); border-color: var(--sv-accent); color: #fff; }
.svu-btn:disabled, .svu-btn[aria-disabled="true"] { opacity: .45; cursor: not-allowed; filter: none; }
/* a primary action that is not available yet reads as neutral, not as a faded orange */
.svu-btn.primary:disabled, .svu-btn.primary[aria-disabled="true"] { opacity: 1; background: rgba(148, 163, 184, 0.1); border-color: var(--sv-line-2); color: var(--sv-faint); box-shadow: none; }
.svu-btn.sm { height: 26px; padding: 0 9px; font-size: var(--sv-fs-sm); }
.svu-btn.xs { height: 22px; padding: 0 7px; font-size: var(--sv-fs-xs); border-radius: var(--sv-r-xs); gap: 5px; }
.svu-btn.block { width: 100%; }
.svu-btn i { font-size: .95em; }

.svu-icon {
  width: 30px; height: 30px; display: inline-flex; align-items: center; justify-content: center; flex: none;
  border-radius: var(--sv-r-sm); border: 1px solid rgba(148, 163, 184, 0.2); background: var(--sv-control);
  color: var(--sv-text-2); cursor: pointer; font: 700 var(--sv-fs)/1 var(--sv-font); padding: 0; margin: 0;
}
.svu-icon:hover { border-color: rgba(var(--sv-accent-rgb), 0.5); color: #fff; }
.svu-icon.on, .svu-icon[aria-pressed="true"] { background: rgba(var(--sv-accent-rgb), 0.18); border-color: var(--sv-accent); color: #fff; }
.svu-icon:disabled { opacity: .4; cursor: not-allowed; }

.svu-link { background: none; border: 0; padding: 0; margin: 0; color: var(--sv-muted); text-decoration: underline; font: inherit; font-size: var(--sv-fs-sm); cursor: pointer; text-transform: none; letter-spacing: 0; }
.svu-link:hover { color: var(--sv-text-strong); }
.svu-link.accent { color: var(--sv-accent); text-decoration: none; font-weight: 700; }

/* ── Segmented control (cb-seg) ──────────────────────────────────────────── */
.svu-seg { display: inline-flex; padding: 3px; gap: 3px; border-radius: var(--sv-r-md); background: var(--sv-field); border: 1px solid var(--sv-line-2); flex: none; max-width: 100%; }
.svu-seg-btn {
  height: 26px; padding: 0 12px; border: 0; border-radius: var(--sv-r-xs); background: transparent; color: var(--sv-muted);
  font: 800 var(--sv-fs)/1 var(--sv-font); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
  text-transform: none; letter-spacing: 0; margin: 0; box-shadow: none;
}
.svu-seg-btn:hover { color: #fff; }
.svu-seg-btn[aria-selected="true"], .svu-seg-btn[aria-pressed="true"] { background: var(--sv-grad); color: #fff; box-shadow: 0 4px 12px rgba(var(--sv-accent-rgb), .25); }
.svu-seg-btn:disabled { opacity: .4; cursor: not-allowed; }
.svu-seg.toggles .svu-seg-btn[aria-pressed="true"] { background: rgba(var(--sv-accent-rgb), 0.2); box-shadow: inset 0 0 0 1px rgba(var(--sv-accent-rgb), .75); }
.svu-seg-btn .sw { width: 9px; height: 9px; border-radius: 3px; flex: none; }

/* ── Chips / pills ───────────────────────────────────────────────────────── */
.svu-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 10px; border-radius: var(--sv-r-pill);
  border: 1px solid var(--sv-line-2); background: rgba(15, 23, 42, 0.8); font: 700 var(--sv-fs-xs)/1 var(--sv-font); color: var(--sv-text-2); white-space: nowrap;
}
.svu-chip .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--sv-faint); flex: none; }
.svu-chip.ok { color: #bbf7d0; border-color: rgba(34, 197, 94, .35); } .svu-chip.ok .dot { background: var(--sv-ok); }
.svu-chip.warn { color: #fde68a; border-color: rgba(245, 158, 11, .4); } .svu-chip.warn .dot { background: var(--sv-warn); }
.svu-chip.bad { color: #fecaca; border-color: rgba(239, 68, 68, .45); } .svu-chip.bad .dot { background: var(--sv-bad); }
.svu-chip.info { color: var(--sv-info-text); border-color: rgba(56, 189, 248, .4); } .svu-chip.info .dot { background: var(--sv-info); }
.svu-chip.violet { color: #e9d5ff; border-color: rgba(167, 139, 250, .4); } .svu-chip.violet .dot { background: var(--sv-violet); }
button.svu-chip { cursor: pointer; margin: 0; text-transform: none; letter-spacing: 0; }
button.svu-chip:hover, button.svu-chip[aria-pressed="true"] { border-color: var(--sv-accent); color: #fff; }
button.svu-chip[aria-pressed="true"] { background: rgba(var(--sv-accent-rgb), .2); }
.svu-pill { display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 18px; padding: 0 6px; border-radius: var(--sv-r-pill);
  font: 800 10px/1 var(--sv-font); color: var(--sv-text-2); background: rgba(148, 163, 184, .16); }
.svu-pill.accent { background: rgba(var(--sv-accent-rgb), .2); color: #fff; }
.svu-num { display: inline-flex; align-items: center; justify-content: center; min-width: 30px; height: 22px; padding: 0 6px; border-radius: var(--sv-r-xs);
  border: 1px solid var(--sv-line-3); background: rgba(11, 18, 32, .7); font: 800 var(--sv-fs-xs)/1 var(--sv-font); color: var(--sv-text-strong); }

/* ── Cards, headings, copy ───────────────────────────────────────────────── */
.svu-card { border: 1px solid rgba(148, 163, 184, 0.14); border-radius: var(--sv-r); background: var(--sv-panel-2); padding: var(--sv-s5); margin-bottom: var(--sv-s4); }
.svu-h { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 var(--sv-s4); font: 700 var(--sv-fs-sm)/1.3 var(--sv-font); letter-spacing: .05em; text-transform: uppercase; color: var(--sv-accent); }
.svu-h small { color: var(--sv-muted); font-weight: 600; text-transform: none; letter-spacing: 0; }
.svu-subh { font: 800 var(--sv-fs-2xs)/1.3 var(--sv-font); color: var(--sv-faint); text-transform: uppercase; letter-spacing: .05em; margin: var(--sv-s5) 2px var(--sv-s2); }
.svu-copy { font: 400 var(--sv-fs)/1.5 var(--sv-font); color: var(--sv-muted); margin: 0; }
.svu-copy b, .svu-copy strong { color: var(--sv-text); }
.svu-note { font: 400 var(--sv-fs-2xs)/1.5 var(--sv-font); color: var(--sv-faint); margin: 0; }
.svu-empty { font: 400 var(--sv-fs)/1.5 var(--sv-font); color: var(--sv-faint); padding: var(--sv-s3) 2px; }

/* ── Tabs (cs-tabs) ──────────────────────────────────────────────────────── */
.svu-tabs { display: grid; grid-auto-flow: column; grid-auto-columns: 1fr; gap: 4px; padding: 10px 12px 0; }
.svu-tab {
  height: 34px; border-radius: 9px 9px 0 0; border: 1px solid transparent; border-bottom: 0; background: transparent; color: var(--sv-muted);
  font: 800 var(--sv-fs)/1 var(--sv-font); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 6px; margin: 0;
  text-transform: none; letter-spacing: 0; box-shadow: none; padding: 0 6px; white-space: nowrap;
}
.svu-tab:hover { color: #fff; }
.svu-tab.active, .svu-tab[aria-selected="true"] { color: #fff; background: rgba(var(--sv-accent-rgb), 0.14); border-color: rgba(var(--sv-accent-rgb), 0.4); }

/* ── List rows (cs-lm-row) ───────────────────────────────────────────────── */
.svu-row {
  display: grid; grid-template-columns: 10px minmax(0, 1fr) auto; gap: 8px; align-items: center; width: 100%;
  padding: 6px 8px; border-radius: 9px; border: 1px solid transparent; background: transparent; color: var(--sv-text);
  font: 400 var(--sv-fs)/1.35 var(--sv-font); text-align: left; cursor: pointer; margin: 0;
}
.svu-row:hover, .svu-row.hl { background: rgba(148, 163, 184, 0.08); }
.svu-row.sel { border-color: var(--sv-accent); background: rgba(var(--sv-accent-rgb), 0.08); }
.svu-row .sw { width: 9px; height: 9px; border-radius: 50%; }
.svu-row .nm { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--sv-text); }
.svu-row .nm b { color: var(--sv-text-strong); }
.svu-conf { display: inline-block; vertical-align: middle; width: 34px; height: 4px; border-radius: var(--sv-r-pill); background: #1f2937; overflow: hidden; }
.svu-conf > i { display: block; height: 100%; background: var(--sv-ok); }
.svu-conf.low > i { background: var(--sv-warn); }

/* ── Toolbar (cs-toolbar) ────────────────────────────────────────────────── */
.svu-toolbar { display: flex; align-items: center; gap: 6px; padding: 8px 10px; border-bottom: 1px solid var(--sv-line-2); background: var(--sv-toolbar); overflow-x: auto; scrollbar-width: none; min-height: 46px; }
.svu-toolbar::-webkit-scrollbar { display: none; }
.svu-tgroup { display: flex; align-items: center; gap: 4px; padding-right: 8px; margin-right: 2px; border-right: 1px solid var(--sv-line-2); flex: none; }
.svu-tgroup:last-child { border-right: 0; }
.svu-tspace { flex: 1; min-width: 4px; }
.svu-zoom { font: 400 var(--sv-fs-xs)/1 var(--sv-font); color: var(--sv-muted); min-width: 42px; text-align: center; font-variant-numeric: tabular-nums; }

/* ── Form controls ───────────────────────────────────────────────────────── */
.svu-input, .svu-select { width: 100%; height: 34px; border-radius: var(--sv-r-sm); border: 1px solid var(--sv-line-2); background: var(--sv-field); color: var(--sv-text); padding: 0 10px; font: 400 var(--sv-fs-md) var(--sv-font); }
.svu-select.sm { height: 26px; font-size: var(--sv-fs-sm); padding: 0 6px; }
.svu-textarea { width: 100%; min-height: 64px; border-radius: var(--sv-r-md); border: 1px solid var(--sv-line-2); background: var(--sv-field); color: var(--sv-text); padding: 8px 10px; font: 400 var(--sv-fs-md)/1.45 var(--sv-font); resize: vertical; box-sizing: border-box; }
.svu-input:focus, .svu-select:focus, .svu-textarea:focus { outline: none; border-color: rgba(var(--sv-accent-rgb), 0.6); }
.svu-check { display: flex; gap: 8px; align-items: flex-start; font: 400 var(--sv-fs-sm)/1.45 var(--sv-font); color: var(--sv-muted); margin: 0; cursor: pointer; text-transform: none; letter-spacing: 0; }
.svu-check input { margin: 2px 0 0; accent-color: var(--sv-accent); flex: none; }

/* ── Feedback bar ────────────────────────────────────────────────────────── */
.svu-fbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 10px; padding: 10px 12px; border-top: 1px solid var(--sv-line-2); background: rgba(11, 17, 29, 0.96); font: 400 var(--sv-fs-md)/1.4 var(--sv-font); color: var(--sv-text); }
.svu-fbar .q { font-weight: 700; color: var(--sv-text-strong); min-width: 0; flex: 0 1 auto; }
.svu-fbar .acts { display: inline-flex; gap: 6px; flex: none; flex-wrap: nowrap; }
.svu-fbar .grow { flex: 1 1 0; min-width: 0; }
.svu-status { font: 400 var(--sv-fs)/1.4 var(--sv-font); color: var(--sv-muted); }
.svu-status.ok { color: #bbf7d0; } .svu-status.err { color: #fecaca; } .svu-status.warn { color: #fde68a; }

/* ── Toasts ──────────────────────────────────────────────────────────────── */
.svu-toasts { position: fixed; right: 18px; bottom: 18px; z-index: 12000; display: flex; flex-direction: column; gap: 8px; pointer-events: none; }
.svu-toast { width: min(380px, calc(100vw - 36px)); border-radius: var(--sv-r-md); border: 1px solid var(--sv-line-2); background: rgba(15, 23, 42, 0.97); color: var(--sv-text); padding: 10px 12px; font: 600 var(--sv-fs-md)/1.4 var(--sv-font); box-shadow: var(--sv-shadow); pointer-events: auto; }
.svu-toast.ok { border-color: rgba(34, 197, 94, .45); color: #bbf7d0; }
.svu-toast.warn { border-color: rgba(245, 158, 11, .45); color: #fde68a; }
.svu-toast.error { border-color: rgba(239, 68, 68, .45); color: #fecaca; }

.svu-spin { width: 22px; height: 22px; border-radius: 50%; border: 3px solid rgba(148, 163, 184, .25); border-top-color: var(--sv-accent); animation: svuSpin .8s linear infinite; flex: none; }
.svu-spin.sm { width: 14px; height: 14px; border-width: 2px; }
@keyframes svuSpin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .svu-spin { animation-duration: 2.4s; } .svu-btn { transition: none; } }

/* ── Beta badge + first-use hints (sv_hints.js) ──────────────────────────── */
/* .svu-beta: the one small "Beta" badge next to a feature's entry point (tooltip: SVHints.BETA_TIP) */
.svu-beta {
  display: inline-flex; align-items: center; height: 15px; padding: 0 5px; margin-left: 5px; border-radius: var(--sv-r-pill);
  border: 1px solid rgba(167, 139, 250, .45); background: rgba(167, 139, 250, .12); color: #e9d5ff;
  font: 800 9px/1 var(--sv-font); letter-spacing: .05em; text-transform: uppercase; vertical-align: 1px;
  white-space: nowrap; flex: none; cursor: help;
}
.svu-light .svu-beta, body.bg-gray-100 .svu-themed .svu-beta { color: #6d28d9; background: rgba(167, 139, 250, .14); }
/* .svu-hint: a small dismissible tip in the page flow (never a modal); hidden once dismissed */
.svu-hint {
  display: flex; align-items: flex-start; gap: 8px; margin: 0 0 var(--sv-s4); padding: 8px 8px 8px 10px;
  border-radius: var(--sv-r-md); border: 1px solid rgba(167, 139, 250, .35); background: rgba(167, 139, 250, .08);
  font: 400 var(--sv-fs-sm)/1.45 var(--sv-font); color: var(--sv-text-2); text-align: left;
}
.svu-hint[hidden] { display: none; }
.svu-hint > i { color: var(--sv-violet); margin-top: 2px; flex: none; font-size: 11px; }
.svu-hint p { margin: 0; flex: 1 1 auto; min-width: 0; font: inherit; color: inherit; }
.svu-hint b { color: var(--sv-text-strong); }
.svu-hint-x {
  flex: none; width: 22px; height: 22px; margin: -2px -2px 0 0; padding: 0; border: 0; border-radius: var(--sv-r-xs);
  background: transparent; color: var(--sv-muted); font: 700 16px/1 var(--sv-font); cursor: pointer; text-transform: none; letter-spacing: 0; box-shadow: none;
}
.svu-hint-x:hover { color: var(--sv-text-strong); background: rgba(148, 163, 184, .14); }
.svu-hint-x:focus-visible { outline: var(--sv-focus); outline-offset: 1px; }
/* .svu-q: the "?" help (sv_hints.js SVHints.help): a small round button; its popover .svu-qp is fixed next to it */
.svu-qw { display: inline-flex; align-items: center; vertical-align: middle; flex: none; }
.svu-q {
  position: relative; display: inline-grid; place-items: center; width: 17px; height: 17px; margin: 0 2px; padding: 0; border-radius: 50%;
  border: 1px solid rgba(148, 163, 184, .45); background: transparent; color: var(--sv-muted);
  font: 800 10px/1 var(--sv-font); letter-spacing: 0; text-transform: none; cursor: pointer; box-shadow: none;
  transition: color .15s, border-color .15s, background .15s;
}
.svu-q::before { content: ""; position: absolute; inset: -7px; }      /* a larger target than the glyph */
.svu-q:hover, .svu-q[aria-expanded="true"] { color: var(--sv-text-strong); border-color: rgba(226, 232, 240, .7); background: rgba(148, 163, 184, .16); }
.svu-q:focus-visible { outline: var(--sv-focus); outline-offset: 2px; }
.svu-qp {
  position: fixed; left: 0; top: 0; z-index: 2000; width: max-content; max-width: min(300px, calc(100vw - 24px)); padding: 9px 11px;
  border-radius: var(--sv-r-md); border: 1px solid rgba(148, 163, 184, .32); background: #0f172a; color: var(--sv-text);
  font: 500 12px/1.5 var(--sv-font); letter-spacing: 0; text-transform: none; text-align: left; white-space: normal;
  box-shadow: 0 14px 34px rgba(0, 0, 0, .5); animation: svuQIn .14s ease-out;
}
.svu-qp[hidden] { display: none; }
.svu-qp b { color: var(--sv-text-strong); }
@keyframes svuQIn { from { opacity: 0; transform: translateY(-3px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .svu-qp { animation: none; } .svu-q { transition: none; } }
@media (pointer: coarse) { .svu-q { width: 22px; height: 22px; font-size: 11px; } .svu-q::before { inset: -8px; } }
/* with sv_guide.css (loaded with it) the "?" takes the guides' glass look (.svgd-q): one "?" across the app, a notch smaller */
.svu-q.svgd-q { width: 18px; height: 18px; margin: 0 2px; font-size: 10px; }
@media (pointer: coarse) { .svu-q.svgd-q { width: 22px; height: 22px; font-size: 11px; } }
.svu-light .svu-q { color: #64748b; border-color: rgba(100, 116, 139, .5); }
.svu-light .svu-qp { background: #fff; color: #1e293b; border-color: rgba(100, 116, 139, .3); box-shadow: 0 14px 34px rgba(15, 23, 42, .18); }
/* inside a studio tab or segmented button the badge is a notch smaller, so labels stay on one line */
.cs-tab .svu-beta, .svu-tab .svu-beta, .cb-seg-btn .svu-beta, .svu-seg-btn .svu-beta { margin-left: 3px; padding: 0 3px; height: 13px; font-size: 8px; letter-spacing: .03em; }

/* ── Touch screens (iPad, Android): every control a fingertip can hit (>= 36 px), same look ─── */
/* min-height / min-width (not height) so the compact sizes other sheets set still give way to these;
   a fine pointer (mouse, trackpad) keeps the desktop sizes above. */
@media (pointer: coarse) {
  .svu-btn, .svu-btn.sm, .svu-btn.xs { min-height: 36px; }
  .svu-btn.sm { padding: 0 12px; }
  .svu-btn.xs { padding: 0 10px; }
  .svu-icon { min-width: 36px; min-height: 36px; }
  .svu-seg-btn { min-height: 36px; padding-left: 13px; padding-right: 13px; }
  .svu-tab { min-height: 36px; }
  button.svu-chip { min-height: 34px; padding: 0 12px; }
  /* the tip's close: a 36 px target that takes no more room than the 22 px glyph did */
  .svu-hint-x { width: 36px; height: 36px; margin: -8px -7px -8px 0; font-size: 18px; }
  .svu-check { gap: 10px; }
  .svu-check input { width: 20px; height: 20px; margin: 0; }
}

/* ── MENU29 (2026-10-29): the row ⋮ menu on every studio list ─────────────────────────────────── */
/* Ceph Studio's study menu (ceph_studio.css .cs-study-more + .cs-menu) on the CBCT and Smile lists and the Fusion /
   full-mouth series cards (sv_rowmenu.js). Touch: the ⋮ is a 36 px target and the items 40 px, as in Ceph Studio. */
@media (pointer: coarse) {
  .cs-study-more.svu-more { width: 36px; height: 36px; }
  .cs-menu.svu-rowmenu [role="menuitem"] { height: 40px; }
}

/* ── TOUCH29 (2026-10-29): the in-app dialog (sv_dialog.js SVDialog.confirm / alert / prompt) ──────────────── */
/* The studios' dialog (ceph_studio.css .cs-modal / .cs-dialog: 18 px radius, glass, 420 px) for every page that used
   the browser's confirm() / alert() / prompt(). .danger-solid: the red OK for what cannot be undone (.cs-btn's). */
.svu-btn.danger-solid { background: #b91c1c; border-color: #ef4444; color: #fff; box-shadow: none; }
.svu-btn.danger-solid:hover { background: #dc2626; border-color: #f87171; color: #fff; filter: none; }
.svu-modal-open, .svu-modal-open body { overflow: hidden; }
.svu-modal {
  position: fixed; inset: 0; z-index: 11100; display: flex; align-items: center; justify-content: center; padding: 16px;
  background: rgba(5, 9, 20, 0.72); -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  animation: svuDlgFade .14s ease-out;
}
.svu-dialog {
  width: min(420px, 100%); max-height: calc(100vh - 32px); overflow: auto; box-sizing: border-box; padding: 18px;
  border-radius: var(--sv-r-xl); border: 1px solid rgba(255, 255, 255, 0.14);
  background: linear-gradient(145deg, rgba(16, 26, 48, 0.97), rgba(8, 14, 28, 0.97)); box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
  font-family: var(--sv-font); text-align: left; animation: svuDlgIn .16s ease-out;
}
.svu-dialog.wide { width: min(640px, 100%); }
.svu-dialog:focus { outline: none; }
.svu-dialog-t { margin: 0 0 6px; font: 800 var(--sv-fs-xl)/1.35 var(--sv-font); color: #fff; letter-spacing: 0; text-transform: none; }
.svu-dialog-x { margin: 0 0 12px; font: 400 var(--sv-fs-md)/1.5 var(--sv-font); color: var(--sv-muted); white-space: pre-line; }
.svu-dialog-f { display: block; margin: 2px 0 0; }
textarea.svu-dialog-f { min-height: 160px; font: 400 11.5px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; resize: vertical; }
.svu-dialog-acts { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; margin-top: 14px; }
.svu-dialog-acts .svu-btn { min-width: 76px; }
@keyframes svuDlgFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes svuDlgIn { from { opacity: 0; transform: translateY(6px) scale(.985); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .svu-modal, .svu-dialog { animation: none; } }
@media (max-width: 420px) { .svu-dialog { padding: 16px; } }
/* touch: 36 px buttons from the (pointer: coarse) rules above (.svu-btn), as every studio dialog (.cs-modal .cs-btn) */

/* ── T13 (2026-10-30): "This patient" strip (sv_patient.js; app/patients, flag patient_link) ──────────────────── */
/* In every studio's top bar (includes/sv_topbar.html): the pill (linked: "This patient · J.D." + a count; unlinked:
   "Link to a patient" / "Same patient as J.D.?" + Link), up to three chips of the patient's other studies on wide
   screens, and one panel (.svp-pop: a popover under the pill; a bottom sheet at <= 600 px). */
.svp { display: inline-flex; align-items: center; gap: 6px; min-width: 0; flex: 0 1 auto; font-family: var(--sv-font); }
.svp[hidden] { display: none; }
.svp-pill {
  display: inline-flex; align-items: center; gap: 7px; height: 30px; max-width: 280px; min-width: 0; padding: 0 10px 0 9px; margin: 0;
  border-radius: var(--sv-r-pill); border: 1px solid var(--sv-line-3); background: var(--sv-control); color: var(--sv-text-2);
  font: 700 var(--sv-fs)/1 var(--sv-font); letter-spacing: 0; text-transform: none; white-space: nowrap; cursor: pointer; box-shadow: none;
  transition: background .16s, border-color .16s, color .16s;
}
.svp-pill:hover, .svp-pill[aria-expanded="true"] { border-color: rgba(var(--sv-accent-rgb), .55); background: rgba(var(--sv-accent-rgb), .1); color: var(--sv-text-strong); }
.svp-pill:focus { outline: none; }
.svp-pill:focus-visible, .svp-chip:focus-visible, .svp-yes:focus-visible, .svp-x:focus-visible { outline: var(--sv-focus); outline-offset: 2px; }
.svp-pill.ghost { background: transparent; border-style: dashed; color: var(--sv-muted); }
.svp-pill.ghost:hover, .svp-pill.ghost[aria-expanded="true"] { color: var(--sv-text-strong); border-style: solid; }
.svp-pill.on { border-color: rgba(56, 189, 248, .38); background: rgba(56, 189, 248, .08); }
.svp-pill.hint { border-color: rgba(167, 139, 250, .5); background: rgba(167, 139, 250, .1); border-radius: var(--sv-r-pill) 0 0 var(--sv-r-pill); padding-right: 9px; }
.svp-ic { font-size: 11px; color: var(--sv-info); flex: none; }
.svp-pill.ghost .svp-ic { color: var(--sv-muted); }
.svp-pill.hint .svp-ic { color: var(--sv-violet); }
.svp-ey { font: 800 var(--sv-fs-2xs)/1 var(--sv-font); letter-spacing: .05em; text-transform: uppercase; color: var(--sv-muted); flex: none; }
.svp-name { color: var(--sv-text-strong); font-weight: 800; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.svp-t { overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.svp-t b { color: var(--sv-text-strong); }
.svp-n { display: inline-flex; align-items: center; justify-content: center; min-width: 18px; height: 18px; padding: 0 5px; border-radius: var(--sv-r-pill);
  background: rgba(56, 189, 248, .2); color: #e0f2fe; font: 800 10px/1 var(--sv-font); flex: none; }
.svp-car { font-size: 9px; color: var(--sv-faint); flex: none; }
.svp-sug { display: inline-flex; align-items: center; min-width: 0; gap: 0; }
.svp-yes {
  height: 30px; padding: 0 12px; margin: 0 6px 0 -1px; border: 1px solid rgba(167, 139, 250, .5); border-radius: 0 var(--sv-r-pill) var(--sv-r-pill) 0;
  background: rgba(167, 139, 250, .22); color: #fff; font: 800 var(--sv-fs)/1 var(--sv-font); cursor: pointer; letter-spacing: 0; text-transform: none; flex: none;
}
.svp-yes:hover { background: rgba(167, 139, 250, .36); }
.svp .svp-beta { margin-left: 0; }
.svp-chips { display: inline-flex; align-items: center; gap: 4px; min-width: 0; overflow: hidden; }
.svp-chip {
  display: inline-flex; align-items: center; gap: 6px; height: 26px; padding: 0 9px; border-radius: var(--sv-r-pill); flex: none;
  border: 1px solid var(--sv-line-2); background: rgba(15, 23, 42, .6); color: var(--sv-text-2); text-decoration: none;
  font: 700 var(--sv-fs-xs)/1 var(--sv-font); white-space: nowrap;
}
.svp-chip i { font-size: 10px; color: var(--sv-muted); }
.svp-chip span { color: var(--sv-faint); font-weight: 600; }
.svp-chip:hover { border-color: rgba(var(--sv-accent-rgb), .5); color: var(--sv-text-strong); text-decoration: none; }
.svp-chip:hover i { color: var(--sv-accent); }
/* the top bar shares its width with the studio's own tools (sv_patient.js fit()): the chips that do not fit go first,
   then the words (.tight: "This patient", Beta), then the name (.tiny: the icon + count); never clipped */
.svp > * { flex: none; }
.svp-chips[hidden], .svp-chip[hidden] { display: none; }
.svp.tight .svp-ey, .svp.tight .svp-beta, .svp.tight .svp-car { display: none; }
.svp.tiny .svp-name, .svp.tiny .svp-t { display: none; }
/* without the patient's name in view, "Link" would not say to whom: the tap opens the panel instead */
.svp.tiny .svp-yes { display: none; }
.svp.tiny .svp-pill.hint { border-radius: var(--sv-r-pill); }
.svp.tiny > * { flex: 0 1 auto; }
@media (max-width: 760px) {
  .svp-chips, .svp-yes, .svp .svp-beta { display: none; }
  .svp-pill.hint { border-radius: var(--sv-r-pill); }
  .svp-pill .svp-ey, .svp-pill .svp-t, .svp-pill .svp-car { display: none; }
  .svp-pill { padding: 0 9px; max-width: 150px; }
  .svp-pill.on .svp-name { max-width: 84px; }
}
@media (max-width: 480px) { .svp-pill.on .svp-name { display: none; } }

/* the panel */
.svp-back { position: fixed; inset: 0; z-index: 11040; background: rgba(5, 9, 20, .6); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
.svp-back[hidden] { display: none; }
.svp-pop {
  position: fixed; left: 16px; top: 56px; z-index: 11050; width: 392px; max-width: calc(100vw - 16px); max-height: min(600px, calc(100vh - 72px));
  display: flex; flex-direction: column; box-sizing: border-box; overflow: hidden;
  border-radius: var(--sv-r-lg); border: 1px solid rgba(255, 255, 255, .14); color: var(--sv-text);
  background: linear-gradient(145deg, rgba(16, 26, 48, .985), rgba(8, 14, 28, .985)); box-shadow: 0 24px 60px rgba(0, 0, 0, .55);
  font: 400 var(--sv-fs)/1.45 var(--sv-font); text-align: left; animation: svpIn .14s ease-out;
}
.svp-pop[hidden] { display: none; }
.svp-pop[aria-busy="true"] .svp-pop-b { opacity: .7; pointer-events: none; }
.svp-pop.sheet {
  left: 0 !important; right: 0; top: auto !important; bottom: 0; width: 100%; max-width: none; max-height: 82vh;
  border-radius: var(--sv-r-xl) var(--sv-r-xl) 0 0; border-bottom: 0; animation: svpUp .18s ease-out;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.svp-pop-hd { display: flex; align-items: flex-start; gap: 10px; padding: 14px 14px 10px 16px; border-bottom: 1px solid var(--sv-line-2); flex: none; }
.svp-pop-hx { flex: 1 1 auto; min-width: 0; }
.svp-pop-ey { display: flex; align-items: center; gap: 2px; font: 800 var(--sv-fs-2xs)/1.2 var(--sv-font); letter-spacing: .06em; text-transform: uppercase; color: var(--sv-accent); }
.svp-pop-t { margin: 4px 0 0; font: 800 var(--sv-fs-xl)/1.3 var(--sv-font); color: #fff; letter-spacing: 0; text-transform: none; overflow-wrap: anywhere; }
.svp-x {
  flex: none; width: 30px; height: 30px; margin: -4px -4px 0 0; padding: 0; border: 0; border-radius: var(--sv-r-sm); background: transparent;
  color: var(--sv-muted); font: 700 20px/1 var(--sv-font); cursor: pointer; letter-spacing: 0; text-transform: none;
}
.svp-x:hover { color: #fff; background: rgba(148, 163, 184, .14); }
.svp-pop-go { flex: none; margin-top: 1px; }
.svp-pop-go[hidden] { display: none; }
.svp-pop-b { padding: 10px 16px 14px; overflow-y: auto; overscroll-behavior: contain; flex: 1 1 auto; min-height: 0; }
.svp-intro { margin: 2px 0 10px; color: var(--sv-muted); font-size: var(--sv-fs); line-height: 1.5; }
.svp-sec { margin: 0 0 12px; }
.svp-h { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 4px 0 6px; font: 800 var(--sv-fs-2xs)/1.3 var(--sv-font); letter-spacing: .06em; text-transform: uppercase; color: var(--sv-faint); }
.svp-h small { font: 700 var(--sv-fs-2xs)/1 var(--sv-font); color: var(--sv-muted); letter-spacing: 0; }
.svp-list { display: flex; flex-direction: column; gap: 4px; }
.svp-row { display: grid; grid-template-columns: 30px minmax(0, 1fr) auto; gap: 10px; align-items: center; padding: 6px; border-radius: var(--sv-r-md);
  border: 1px solid transparent; background: rgba(15, 23, 42, .45); }
.svp-row.cur { border-color: rgba(var(--sv-accent-rgb), .45); background: rgba(var(--sv-accent-rgb), .08); }
.svp-tile { width: 30px; height: 30px; border-radius: var(--sv-r-sm); display: inline-flex; align-items: center; justify-content: center; font-size: 12px;
  background: rgba(148, 163, 184, .14); color: var(--sv-text-2); }
.svp-tile.k-cbct { background: rgba(56, 189, 248, .16); color: var(--sv-info-text); }
.svp-tile.k-ceph { background: rgba(var(--sv-accent-rgb), .16); color: #fed7aa; }
.svp-tile.k-fmx { background: rgba(167, 139, 250, .18); color: #e9d5ff; }
.svp-tile.k-smile { background: rgba(34, 197, 94, .15); color: var(--sv-ok-text); }
.svp-tile.k-crown { background: rgba(245, 158, 11, .16); color: var(--sv-warn-text); }
.svp-rt { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.svp-rt b { font: 700 var(--sv-fs-md)/1.25 var(--sv-font); color: var(--sv-text-strong); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.svp-rt small { font: 400 var(--sv-fs-sm)/1.3 var(--sv-font); color: var(--sv-muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.svp-tag { display: inline-block; margin-left: 6px; padding: 1px 6px; border-radius: var(--sv-r-pill); border: 1px solid var(--sv-line-2); font: 700 10px/1.3 var(--sv-font); color: var(--sv-text-2); vertical-align: 1px; }
.svp-here { font: 700 var(--sv-fs-xs)/1 var(--sv-font); color: var(--sv-accent); padding: 0 8px; white-space: nowrap; }
.svp-q { margin: 0 0 6px; }
.svp-empty { display: flex; align-items: center; gap: 8px; padding: 6px 2px; font-size: var(--sv-fs); color: var(--sv-faint); }
.svp-note { margin: 4px 0 6px; font: 400 var(--sv-fs-2xs)/1.5 var(--sv-font); color: var(--sv-faint); }
.svp-note i { margin-right: 4px; }
.svp-foot { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding-top: 10px; margin-top: 4px; border-top: 1px solid var(--sv-line-2); }
.svp-foot .svp-sp { flex: 1 1 auto; }
.svp-foot .svu-btn.danger { color: var(--sv-bad-text); }
.svp-status { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin: 0 0 10px; padding: 7px 8px 7px 10px; border-radius: var(--sv-r-md);
  border: 1px solid var(--sv-line-2); background: rgba(15, 23, 42, .6); font-size: var(--sv-fs); color: var(--sv-text-2); }
.svp-status.ok { border-color: rgba(34, 197, 94, .4); color: #bbf7d0; }
.svp-status.err { border-color: rgba(239, 68, 68, .45); color: #fecaca; }
.svp-status b { color: #fff; }
@keyframes svpIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: none; } }
@keyframes svpUp { from { transform: translateY(24px); opacity: .4; } to { transform: none; opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .svp-pop, .svp-pop.sheet { animation: none; } .svp-pill { transition: none; } }
@media (pointer: coarse) {
  .svp-pill, .svp-yes { min-height: 36px; }
  .svp-chip { min-height: 34px; padding: 0 11px; }
  .svp-x { width: 36px; height: 36px; }
  .svp-row { padding: 7px 6px; }
  .svp-row .svu-btn { min-width: 64px; }
}