/* curriculum-top1.css — Start Here role panel + accessibility upgrades.
   Scoped with the top1- prefix. Additive only; no overrides of existing hub styles. */

:root {
  --top1-navy: #0f2747;
  --top1-blue: #1d6fb8;
  --top1-ink: #1b2733;
  --top1-line: #d7dee7;
  --top1-bg: #f6f9fc;
  --top1-card: #ffffff;
}

.top1 {
  margin: 18px 0 26px;
  padding: 22px;
  border: 1px solid var(--top1-line);
  border-radius: 16px;
  background: linear-gradient(180deg, #ffffff 0%, var(--top1-bg) 100%);
  font-family: "Outfit", system-ui, sans-serif;
  color: var(--top1-ink);
}

.top1-hero {
  margin-bottom: 14px;
}
.top1-eyebrow {
  margin: 0 0 4px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--top1-blue);
}
.top1-hero h2 {
  margin: 0 0 6px;
  font-size: clamp(22px, 3vw, 30px);
  color: var(--top1-navy);
  line-height: 1.15;
}
.top1-lede {
  margin: 0;
  max-width: 60ch;
  font-size: 15px;
  color: #3a4654;
}

/* role cards */
.top1-roles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
  margin: 8px 0 14px;
}
.top1-role {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-height: 76px;
  padding: 12px 14px;
  text-align: left;
  border: 1px solid var(--top1-line);
  border-radius: 12px;
  background: var(--top1-card);
  cursor: pointer;
  transition:
    border-color 0.15s,
    box-shadow 0.15s,
    transform 0.05s;
}
.top1-role:hover {
  border-color: var(--top1-blue);
}
.top1-role[aria-pressed="true"] {
  border-color: var(--top1-blue);
  box-shadow: 0 0 0 2px rgba(29, 111, 184, 0.25);
  background: #f0f7ff;
}
.top1-role-icon {
  font-size: 22px;
}
.top1-role-label {
  font-weight: 700;
  font-size: 15px;
  color: var(--top1-navy);
}
.top1-role-sub {
  font-size: 12.5px;
  color: #51606f;
}

/* stage */
.top1-stage {
  border-top: 1px solid var(--top1-line);
  padding-top: 16px;
}
.top1-intro-title {
  margin: 0 0 4px;
  font-size: 18px;
  color: var(--top1-navy);
}
.top1-intro-sub {
  margin: 0 0 12px;
  font-size: 14px;
  color: #41506a;
  max-width: 64ch;
}

/* picker */
.top1-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 14px;
}
.top1-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 12.5px;
  font-weight: 700;
  color: var(--top1-navy);
}
.top1-select {
  min-height: 44px;
  min-width: 180px;
  padding: 8px 10px;
  font-size: 15px;
  border: 1px solid var(--top1-line);
  border-radius: 10px;
  background: #fff;
  color: var(--top1-ink);
}

/* lesson card / output */
.top1-lesson-card {
  padding: 14px 16px;
  border: 1px solid var(--top1-line);
  border-left: 4px solid var(--top1-blue);
  border-radius: 12px;
  background: var(--top1-card);
  margin-bottom: 12px;
}
.top1-lesson-head {
  font-size: 17px;
  color: var(--top1-navy);
  margin-bottom: 6px;
}
.top1-obj {
  margin: 0 0 8px;
  font-size: 14px;
  color: #2f3d4d;
}
.top1-why {
  margin: 0 0 10px;
  padding: 8px 10px;
  background: #f0f7ff;
  border-radius: 8px;
  font-size: 13.5px;
  color: #234;
}
.top1-kv {
  margin: 0 0 8px;
  font-size: 14px;
  line-height: 1.45;
  color: #2a3744;
}
.top1-note {
  padding: 8px 10px;
  background: #fff7e6;
  border-radius: 8px;
  border: 1px solid #f0dcae;
  color: #5c4708;
}

/* links + badges */
.top1-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-top: 8px;
}
.top1-link-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 8px 10px;
  min-height: 44px;
  border: 1px solid var(--top1-line);
  border-radius: 9px;
  background: #fbfdff;
}
.top1-link {
  font-weight: 600;
  font-size: 14.5px;
  color: var(--top1-blue);
  text-decoration: none;
}
.top1-link:hover,
.top1-link:focus-visible {
  text-decoration: underline;
}
.top1-meta {
  font-size: 11.5px;
  color: #5c6b7a;
  margin-left: auto;
}
.top1-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid transparent;
  white-space: nowrap;
}
.top1-badge-student {
  background: #e7f1fb;
  color: #114a7a;
  border-color: #bcd9f2;
}
.top1-badge-teacher {
  background: #fde8d4;
  color: #7a3c00;
  border-color: #f3c79a;
}
.top1-badge-download {
  background: #e9edf2;
  color: #36424f;
  border-color: #c7d0da;
}
.top1-badge-assess {
  background: #efe6fb;
  color: #4a2a7a;
  border-color: #d3bff0;
}
.top1-badge-game {
  background: #e1f4ea;
  color: #15603f;
  border-color: #b6e3cc;
}
.top1-badge-family {
  background: #def3f3;
  color: #115a5a;
  border-color: #b2e2e2;
}
.top1-badge-std {
  background: var(--top1-navy);
  color: #fff;
}

/* collapsibles */
.top1-collapse {
  border: 1px solid var(--top1-line);
  border-radius: 10px;
  background: #fff;
  margin-bottom: 10px;
}
.top1-collapse > summary {
  cursor: pointer;
  padding: 12px 14px;
  min-height: 44px;
  font-weight: 700;
  font-size: 14.5px;
  color: var(--top1-navy);
  list-style: none;
}
.top1-collapse > summary::-webkit-details-marker {
  display: none;
}
.top1-collapse > summary::after {
  content: "＋";
  float: right;
  color: var(--top1-blue);
}
.top1-collapse[open] > summary::after {
  content: "－";
}
.top1-collapse-body {
  padding: 4px 14px 14px;
}
.top1-checklist {
  margin: 6px 0;
  padding-left: 20px;
}
.top1-checklist li {
  margin-bottom: 5px;
  font-size: 14px;
  color: #2a3744;
}
.top1-ladder {
  margin: 6px 0;
  padding-left: 22px;
}
.top1-ladder li {
  margin-bottom: 6px;
  font-size: 14px;
}

/* uifr */
.top1-uifr {
  border: 1px solid #c9d6e6;
  border-radius: 12px;
  background: #fbfdff;
  padding: 14px;
}
.top1-uifr-disc {
  margin: 0 0 12px;
  font-size: 12.5px;
  color: #5c6b7a;
  font-style: italic;
}
.top1-nextsteps {
  margin-top: 10px;
  padding: 10px 12px;
  background: #f0f7ff;
  border-radius: 8px;
  font-size: 13.5px;
  line-height: 1.6;
  color: #234;
}
.top1-plan {
  white-space: pre-wrap;
  font-family: "Outfit", system-ui, sans-serif;
  font-size: 13.5px;
  line-height: 1.55;
  background: #f7fafd;
  border: 1px solid var(--top1-line);
  border-radius: 10px;
  padding: 12px 14px;
  color: #233;
  margin: 0 0 12px;
}

/* buttons */
.top1-btnrow {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}
.top1-copy,
.top1-chip {
  min-height: 44px;
  padding: 9px 14px;
  font-size: 13.5px;
  font-weight: 600;
  border: 1px solid var(--top1-blue);
  border-radius: 10px;
  background: #fff;
  color: var(--top1-blue);
  cursor: pointer;
}
.top1-copy:hover,
.top1-chip:hover {
  background: #eef6ff;
}
.top1-chip {
  min-height: 44px;
  padding: 7px 12px;
  border-color: var(--top1-line);
  color: var(--top1-ink);
}
.top1-chip[aria-pressed="true"] {
  background: var(--top1-blue);
  border-color: var(--top1-blue);
  color: #fff;
}
.top1-disp-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}
.top1-disp-label {
  font-weight: 700;
  font-size: 13px;
  width: 92px;
  color: var(--top1-navy);
}

/* Public/private safety: hide teacher-only hub chrome in the Student-Mode
   default. The existing system adds body.teacher-mode in Teacher Mode. */
body:not(.teacher-mode) .hub-teacher-only {
  display: none !important;
}

/* ---------- global accessibility upgrades (WCAG 2.2 AA targets) ---------- */

/* Progress check buttons must be >= 44x44 CSS px (was ~27px). */
.progress-check {
  min-width: 44px !important;
  min-height: 44px !important;
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
}

/* Visible focus everywhere for keyboard users. */
.top1 a:focus-visible,
.top1 button:focus-visible,
.top1 select:focus-visible,
.progress-check:focus-visible,
.hub-mode-toggle:focus-visible,
.res:focus-visible {
  outline: 3px solid #1d6fb8;
  outline-offset: 2px;
  border-radius: 6px;
}

/* Display preference: text scaling within the start-here panel. */
body.top1-text-lg .top1 {
  font-size: 17px;
}
body.top1-text-xl .top1 {
  font-size: 19px;
}
body.top1-text-lg .top1 .top1-kv,
body.top1-text-lg .top1 .top1-link {
  font-size: 16px;
}
body.top1-text-xl .top1 .top1-kv,
body.top1-text-xl .top1 .top1-link {
  font-size: 18px;
}
body.top1-space .top1 .top1-kv,
body.top1-space .top1 .top1-checklist li {
  line-height: 1.8;
}
body.top1-space .top1 .top1-link-row {
  padding-top: 12px;
  padding-bottom: 12px;
}

/* High contrast preference. */
body.top1-contrast .top1 {
  background: #fff;
}
body.top1-contrast .top1-role,
body.top1-contrast .top1-link-row,
body.top1-contrast .top1-lesson-card,
body.top1-contrast .top1-collapse {
  border-color: #1b2733;
}
body.top1-contrast .top1-role-sub,
body.top1-contrast .top1-lede,
body.top1-contrast .top1-intro-sub,
body.top1-contrast .top1-meta {
  color: #1b2733;
}
body.top1-contrast .top1-link {
  color: #0b3a63;
}

/* Reduced motion preference. */
body.top1-reduced * {
  transition: none !important;
  animation: none !important;
  scroll-behavior: auto !important;
}
@media (prefers-reduced-motion: reduce) {
  .top1 * {
    transition: none !important;
    animation: none !important;
  }
}

@media (max-width: 560px) {
  .top1 {
    padding: 16px;
  }
  /* Unit/role pickers fill the column and never push the page sideways. */
  .top1-field {
    width: 100%;
    min-width: 0;
  }
  .top1-picker .top1-select {
    width: 100%;
    min-width: 0;
    max-width: 100%;
  }
  /* Resource links get a comfortable tap area on phones (the row is already
     44px, but each link should be easy to hit on its own). */
  .top1-link {
    display: inline-flex;
    align-items: center;
    min-height: 36px;
    padding: 4px 6px;
  }
  .hub-hint-link {
    display: inline-block;
    min-height: 32px;
    padding: 4px 2px;
  }
}