:root {
  --ink: #0B1320;
  --ink-soft: #132A45;
  --steel: #1E3D5A;
  --cyan: #22C7D6;
  --link: #155E68;
  --paper: #E8EDF3;
  --paper-deep: #d7e0ea;
  --card: #ffffff;
  --muted: #3d4d5e;
  --muted-on-dark: #A6B2C2;
  --rule: rgba(166, 178, 194, 0.55);
  --ok: #0d7a5f;
  --warn: #9a5b12;
  --danger: #b42318;
  --focus: #22C7D6;
  --shadow: 0 4px 16px rgba(11, 19, 32, 0.08);
  --radius: 14px;
  --radius-sm: 10px;
  --header-h: 3.75rem;
  --nav-h: 4.75rem;
  --tap: 2.75rem;
  /* Windows lab / offline-first: Segoe + Nirmala before webfonts */
  --font-body: "Segoe UI", "Nirmala UI", "Noto Sans Devanagari", Inter, Tahoma, sans-serif;
  --font-display: Sora, "Segoe UI Semibold", "Segoe UI", Inter, sans-serif;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

html, body {
  margin: 0;
  min-height: 100%;
  background: var(--paper);
  color: var(--ink);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

h1, h2, h3, .brand-lockup, .cta, .role-card .role-en {
  font-family: var(--font-display);
}

a { color: var(--link); }
a:hover { color: var(--ink); }

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -3rem;
  background: var(--ink);
  color: #fff;
  padding: 0.5rem 0.75rem;
  z-index: 20;
  border-radius: 6px;
}
.skip-link:focus { top: 0.75rem; }

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-height: var(--header-h);
  padding: 0.55rem 1rem;
  background: var(--ink);
  color: var(--paper);
  border-bottom: 2px solid var(--cyan);
}

.app-header a {
  display: flex;
  align-items: center;
  color: inherit;
  flex-shrink: 0;
}

.app-header img {
  height: 32px;
  width: auto;
  max-width: min(200px, 48vw);
  display: block;
  object-fit: contain;
  object-position: left center;
}

.brand-lockup {
  display: flex;
  flex-direction: column;
  gap: 0.08rem;
  min-width: 0;
}

.brand-eyebrow {
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted-on-dark);
}

.brand-lockup span:last-child {
  font-size: 0.8rem;
  color: var(--muted-on-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stage {
  max-width: 40rem;
  margin: 0 auto;
  padding: 1.25rem 1rem calc(var(--nav-h) + 2rem);
}

.hero {
  margin: 0.85rem 0 1.35rem;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: 0.4rem;
}

.hero h1 {
  margin: 0 0 0.35rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

@media (min-width: 640px) {
  .hero h1 { font-size: 1.85rem; }
}

.hero .mr, .title-mr, .help, .muted {
  color: var(--muted);
}

.hero p { margin: 0.35rem 0 0; }

.roles {
  display: grid;
  gap: 0.75rem;
  /* Always one column: bilingual cards need width on 1024×768 lab screens */
  grid-template-columns: 1fr;
}

.role-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 0.3rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 1rem 1.05rem 0.95rem;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow);
  min-height: 9.5rem;
}

@media (hover: hover) and (pointer: fine) {
  .role-card {
    transition: border-color 0.15s ease;
  }
  .role-card:hover,
  .role-card:focus-visible {
    border-color: rgba(34, 199, 214, 0.75);
    outline: none;
  }
}

.role-card:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.role-card .mins {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--steel);
}

.role-card .role-en {
  margin: 0;
  font-size: 1.12rem;
  font-weight: 700;
}

.role-card .role-mr,
.role-card .blurb {
  margin: 0;
  font-size: 0.94rem;
  color: var(--muted);
}

.role-card .go {
  margin-top: auto;
  padding-top: 0.45rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--link);
  min-height: var(--tap);
  display: inline-flex;
  align-items: center;
}

.role-card:hover .go,
.role-card:focus-visible .go {
  color: var(--ink);
}

.progress-wrap {
  position: sticky;
  top: var(--header-h);
  z-index: 9;
  /* Solid fill — no backdrop-filter (slow/broken on old lab GPUs) */
  background: var(--ink-soft);
  padding: 0.55rem 0 0.5rem;
  border-bottom: 1px solid var(--steel);
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  font-size: 0.84rem;
  color: var(--muted-on-dark);
  margin-bottom: 0.35rem;
}

.progress-bar {
  height: 6px;
  background: var(--steel);
  border-radius: 99px;
  overflow: hidden;
}

.save-status {
  margin: 0 0 0.4rem;
  font-size: 0.8rem;
  color: var(--cyan);
}

.progress-bar > span {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--cyan);
}

@media (prefers-reduced-motion: no-preference) {
  .progress-bar > span {
    transition: width 0.25s ease;
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.15rem 1.05rem 1.25rem;
}

.q-id {
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel);
}

.q-title {
  margin: 0.35rem 0 0.15rem;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.3;
  font-family: var(--font-display);
}

@media (min-width: 640px) {
  .q-title { font-size: 1.4rem; }
}

.title-mr {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.badge {
  display: inline-block;
  margin-left: 0.35rem;
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--steel);
  vertical-align: middle;
}

.badge.optional { color: var(--muted); }
.badge.conditional { color: var(--warn); }

.help { font-size: 0.95rem; margin: 0 0 0.85rem; }
.section-chip {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0 0 0.5rem;
}

.context-list {
  margin: 0.55rem 0 0;
  padding-left: 1.15rem;
}

.context-list li { margin: 0.4rem 0; }

details.known {
  margin-top: 0.85rem;
  border-top: 1px solid var(--rule);
  padding-top: 0.75rem;
}

details.known summary {
  cursor: pointer;
  color: var(--link);
  font-weight: 600;
  min-height: var(--tap);
  display: flex;
  align-items: center;
}

.opts {
  display: grid;
  gap: 0.5rem;
}

.opt {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  min-height: var(--tap);
}

@media (hover: hover) and (pointer: fine) {
  .opt:hover { border-color: rgba(34, 199, 214, 0.65); }
}

/* JS toggles .selected — avoid :has() for older Chromium/Edge on lab PCs */
.opt.selected {
  border-color: rgba(34, 199, 214, 0.85);
  box-shadow: inset 3px 0 0 var(--cyan);
  background: #f4fbfc;
}

.opt input {
  margin-top: 0.2rem;
  width: 1.1rem;
  height: 1.1rem;
  flex-shrink: 0;
  accent-color: var(--steel);
}

.opt .lab-en { font-weight: 600; }
.opt .lab-mr { display: block; font-size: 0.9rem; color: var(--muted); }

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
select,
textarea {
  font: inherit;
  font-size: 16px; /* prevents iOS zoom; readable on 1024×768 */
  width: 100%;
  max-width: 100%;
  min-height: var(--tap);
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  background: #fff;
  color: var(--ink);
}

select {
  /* Native Windows select is clearer than custom arrows on old Edge */
  padding-right: 2rem;
}

textarea {
  min-height: 7rem;
  resize: vertical;
  line-height: 1.45;
}

input:focus-visible,
select:focus-visible,
textarea:focus-visible,
button:focus-visible,
.opt:focus-within {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.fields { display: grid; gap: 0.65rem; }
.fields label span,
.notes-lab {
  display: block;
  font-size: 0.84rem;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.other-box { margin-top: 0.65rem; }

table.matrix {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.matrix th,
table.matrix td {
  border: 1px solid var(--rule);
  padding: 0.5rem;
  vertical-align: top;
}

table.matrix th { background: var(--paper); text-align: left; }

.matrix-stack { display: grid; gap: 0.75rem; }

.matrix-row {
  border: 1px solid var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.75rem;
}

.matrix-row h4 {
  margin: 0 0 0.15rem;
  font-size: 0.98rem;
}

.matrix-row .row-mr {
  margin: 0 0 0.5rem;
  font-size: 0.88rem;
  color: var(--muted);
}

.rank-row,
.order-row {
  display: grid;
  grid-template-columns: minmax(4.25rem, 5rem) 1fr;
  gap: 0.5rem;
  align-items: center;
  margin: 0.4rem 0;
}

.repeat-item {
  border: 1px dashed var(--rule);
  border-radius: var(--radius-sm);
  padding: 0.8rem;
  margin: 0.5rem 0;
}

.file-ref {
  background: var(--paper);
  border-left: 3px solid var(--cyan);
  padding: 0.65rem 0.8rem;
  margin: 0.4rem 0 0.7rem;
  font-size: 0.92rem;
}

.nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 0.75rem calc(0.75rem + env(safe-area-inset-bottom, 0px));
  background: var(--paper);
  border-top: 1px solid var(--rule);
  box-shadow: 0 -2px 12px rgba(11, 19, 32, 0.06);
}

.nav-inner {
  width: min(40rem, 100%);
  display: flex;
  gap: 0.5rem;
}

button,
.cta {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  border: 0;
  cursor: pointer;
  border-radius: 8px;
  padding: 0.7rem 1.1rem;
  min-height: var(--tap);
}

.cta,
button.primary {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 0 0 1px var(--ink);
}

@media (hover: hover) and (pointer: fine) {
  .cta:hover,
  button.primary:hover { background: var(--ink-soft); }
}

button.primary:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

button.ghost {
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--rule);
  min-width: 5.5rem;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.grow { flex: 1; }

.err {
  color: var(--danger);
  font-size: 0.94rem;
  margin: 0.55rem 0 0;
}

.ok { color: var(--ok); }

.app-footer {
  max-width: 40rem;
  margin: 0 auto;
  padding: 0 1rem calc(var(--nav-h) + 1.5rem);
  font-size: 0.84rem;
  color: var(--muted);
  line-height: 1.5;
}

.hub-footer { padding-bottom: 2rem; }

.hidden { display: none !important; }

.thank h2 { margin: 0 0 0.4rem; font-size: 1.35rem; }
.thank p { margin: 0.4rem 0; }

.load-box code {
  display: block;
  background: var(--paper);
  padding: 0.5rem 0.65rem;
  border-radius: 6px;
  margin: 0.4rem 0;
  font-size: 0.82rem;
  word-break: break-word;
}

/*
 * Matrices: stacked cards below ~900px (phones + 1024×768 with side chrome).
 * Wide desktops keep the table; stacked twin stays in DOM for parity.
 */
@media (max-width: 900px) {
  table.matrix { display: none; }
}

@media (min-width: 901px) {
  .matrix-stack.desktop-hide { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}

@media (max-width: 380px) {
  .brand-eyebrow { display: none; }
  .app-header img { max-width: 42vw; }
  .nav-inner { flex-wrap: wrap; }
  button.ghost { flex: 1 1 auto; }
  button.primary.grow { flex: 1 1 100%; }
}