/* ===== The Lab — shared styles (light + dark themes) ===== */

:root {
  --navy: #0d1b2a;
  --navy-2: #14263e;
  --gold: #f2a900;
  --teal: #0ea5a3;
  --radius: 10px;

  --bg: #f6f7f9;
  --card-bg: #ffffff;
  --text: #1b2430;
  --text-soft: #3a4a5a;
  --muted: #566677;
  --border: #e2e6ea;
  --soft-fill: #eef1f4;
  --link: #0a7b79;
  --btn-dark-bg: #0d1b2a;
  --btn-dark-hover: #14263e;
  --code-bg: #0d1b2a;

  --physics: #2a66e0;
  --chemistry: #bf3f0f;
  --biology: #1b7335;
  --engineering: #8a5f00;
  --environmental: #17775a;
  --earth: #6d4aed;
  --anatomy: #cc3560;
  --data: #0a6c9e;

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #0a1220;
  --card-bg: #111c2e;
  --text: #e8eef6;
  --text-soft: #c3cfdd;
  --muted: #9fb1c5;
  --border: #243651;
  --soft-fill: #182840;
  --link: #4fd8d5;
  --btn-dark-bg: #2c4a74;
  --btn-dark-hover: #38598a;
  --code-bg: #060d18;

  --physics: #7aa5ff;
  --chemistry: #ff9068;
  --biology: #5fd07f;
  --engineering: #f2b21d;
  --environmental: #3fc79d;
  --earth: #a791ff;
  --anatomy: #ff7a9c;
  --data: #4cc2f5;

  color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0a1220;
    --card-bg: #111c2e;
    --text: #e8eef6;
    --text-soft: #c3cfdd;
    --muted: #9fb1c5;
    --border: #243651;
    --soft-fill: #182840;
    --link: #4fd8d5;
    --btn-dark-bg: #2c4a74;
    --btn-dark-hover: #38598a;
    --code-bg: #060d18;

    --physics: #7aa5ff;
    --chemistry: #ff9068;
    --biology: #5fd07f;
    --engineering: #f2b21d;
    --environmental: #3fc79d;
    --earth: #a791ff;
    --anatomy: #ff7a9c;
    --data: #4cc2f5;

    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.55;
}

h1, h2, h3, h4 {
  font-family: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  line-height: 1.2;
  margin: 0 0 .5em;
}

p { margin: 0 0 1em; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
img, svg { max-width: 100%; }

:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  background: var(--gold);
  color: var(--navy);
  padding: 10px 16px;
  border-radius: 8px;
  font-weight: 700;
  z-index: 200;
}
.skip-link:focus { top: 12px; text-decoration: none; }

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* ---------- Header / Nav ---------- */

.site-header {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 3px solid var(--gold);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 24px;
  max-width: 1180px;
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: .3px;
}
.brand:hover { text-decoration: none; opacity: .9; }

.brand .mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--gold), var(--teal));
  color: var(--navy);
  font-weight: 800;
  font-size: .95rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links > li { position: relative; }

.nav-links a,
.nav-links .menu-btn {
  color: #cfd8e3;
  font-weight: 500;
  font-size: .93rem;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 0;
}

.nav-links a:hover,
.nav-links a.active,
.nav-links .menu-btn:hover,
.nav-links .menu-btn.active {
  color: #fff;
  text-decoration: none;
  border-bottom: 2px solid var(--gold);
  padding-bottom: 4px;
}

.menu-btn::after { content: " \25BE"; font-size: .75em; }

.submenu {
  display: none;
  position: absolute;
  top: calc(100% + 14px);
  left: -14px;
  min-width: 230px;
  background: var(--navy-2);
  border: 1px solid #27405f;
  border-top: 3px solid var(--gold);
  border-radius: 0 0 10px 10px;
  list-style: none;
  margin: 0;
  padding: 8px 0;
  box-shadow: 0 14px 30px rgba(0,0,0,.35);
  z-index: 60;
}
.has-menu.open > .submenu { display: block; }
.submenu a { display: block; padding: 9px 18px; border: none !important; font-size: .9rem; }
.submenu a:hover, .submenu a.active { background: rgba(255,255,255,.08); color: #fff; padding-bottom: 9px !important; }

.nav-tools { display: flex; align-items: center; gap: 8px; }

.theme-toggle, .nav-toggle {
  background: none;
  border: 1px solid #4a5a6c;
  color: #fff;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 1rem;
  cursor: pointer;
  line-height: 1;
}
.theme-toggle:hover, .nav-toggle:hover { background: rgba(255,255,255,.1); }
.theme-toggle svg { width: 18px; height: 18px; display: block; }
.nav-toggle { display: none; }

@media (max-width: 1040px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--navy-2);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    display: none;
    border-bottom: 3px solid var(--gold);
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }
  .nav-links.open { display: flex; }
  .nav-links > li { border-bottom: 1px solid #22344a; }
  .nav-links a, .nav-links .menu-btn { display: block; width: 100%; text-align: left; padding: 14px 24px; }
  .nav-links a:hover, .nav-links a.active,
  .nav-links .menu-btn:hover, .nav-links .menu-btn.active { border-bottom: none; padding-bottom: 14px; background: rgba(255,255,255,.06); }
  .submenu { position: static; box-shadow: none; border: none; border-radius: 0; background: #0f2036; padding: 0; }
  .submenu a { padding: 12px 24px 12px 40px; }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 480px at 85% -10%, rgba(242,169,0,.18), transparent 60%),
    radial-gradient(900px 420px at 0% 0%, rgba(14,165,163,.22), transparent 55%),
    linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 72px 0 56px;
}
.hero .container { position: relative; z-index: 1; }

.hero .eyebrow {
  display: inline-block;
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: .78rem;
  margin-bottom: 14px;
}
.hero h1 { font-size: clamp(2rem, 4.2vw, 3.1rem); max-width: 820px; }
.hero p.lead { color: #c7d2df; max-width: 680px; font-size: 1.08rem; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 18px; }

.subject-hero { padding: 52px 0 52px; }
.subject-hero .tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.25);
  color: #fff;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: .82rem;
  margin-bottom: 14px;
}
.subject-hero .tag svg { width: 18px; height: 18px; }

.hero-skyline {
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  width: 100%;
  height: auto;
  opacity: .85;
  pointer-events: none;
  color: #0a1626;
  fill: currentColor;
}

/* ---------- Grade-band toggle ---------- */

.band-toggle {
  display: inline-flex;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 999px;
  padding: 4px;
  margin-top: 6px;
}
.band-toggle button {
  border: none;
  background: transparent;
  padding: 8px 18px;
  border-radius: 999px;
  font-weight: 700;
  font-size: .85rem;
  cursor: pointer;
  color: #cfd8e3;
  font-family: inherit;
}
.band-toggle button.active { background: var(--gold); color: var(--navy); }
.band-hidden { display: none !important; }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 8px;
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  border: 1px solid transparent;
  font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: #ffbb24; }
.btn-outline { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-outline:hover { background: rgba(255,255,255,.1); }
.btn-dark { background: var(--btn-dark-bg); color: #fff; }
.btn-dark:hover { background: var(--btn-dark-hover); }
.btn-ghost { background: var(--card-bg); color: var(--text); border-color: var(--border); }
.btn-ghost:hover { background: var(--soft-fill); }
.btn-sm { padding: 7px 14px; font-size: .85rem; border-radius: 6px; }

/* ---------- Sections ---------- */

section { padding: 56px 0; }
section[id] { scroll-margin-top: 120px; }
section.tight { padding: 40px 0; }
.section-head { max-width: 720px; margin-bottom: 32px; }
.section-head .kicker {
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-size: .78rem;
  font-weight: 700;
  color: var(--muted);
}
.section-head h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); }
.section-head p { color: var(--muted); }
.alt-bg { background: var(--card-bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

/* ---------- Subject cards ---------- */

.subject-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }

.subject-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  border-top: 4px solid var(--sub-color, var(--teal));
  transition: transform .15s ease, box-shadow .15s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
  color: var(--text);
}
.subject-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(13,27,42,.12); text-decoration: none; }
.subject-card .icon {
  display: flex; align-items: center; justify-content: center;
  width: 46px; height: 46px; border-radius: 10px;
  background: color-mix(in srgb, var(--sub-color, var(--teal)) 14%, transparent);
  color: var(--sub-color, var(--teal));
  margin-bottom: 14px;
}
.subject-card .icon svg { width: 26px; height: 26px; }
.subject-card h3 { font-size: 1.2rem; color: var(--text); }
.subject-card p { color: var(--muted); font-size: .92rem; flex-grow: 1; }
.subject-card .go { color: var(--sub-color, var(--link)); font-weight: 700; font-size: .88rem; }

.subject-card.physics, .sub-physics { --sub-color: var(--physics); }
.subject-card.chemistry, .sub-chemistry { --sub-color: var(--chemistry); }
.subject-card.biology, .sub-biology { --sub-color: var(--biology); }
.subject-card.engineering, .sub-engineering { --sub-color: var(--engineering); }
.subject-card.environmental, .sub-environmental { --sub-color: var(--environmental); }
.subject-card.earth, .sub-earth { --sub-color: var(--earth); }
.subject-card.anatomy, .sub-anatomy { --sub-color: var(--anatomy); }
.subject-card.data, .sub-data { --sub-color: var(--data); }

/* ---------- Features ---------- */

.feature-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; }
.feature { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; }
.alt-bg .feature { background: var(--bg); }
.feature .icon {
  width: 40px; height: 40px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(14,165,163,.14);
  color: var(--link);
  margin-bottom: 12px;
}
.feature .icon svg { width: 20px; height: 20px; }
.feature h3 { font-size: 1.02rem; }
.feature p { color: var(--muted); font-size: .9rem; margin: 0; }
a.feature { color: var(--text); display: block; }
a.feature:hover { text-decoration: none; border-color: var(--teal); }

/* ---------- Standards box ---------- */

.standards-box {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--text-soft);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 8px;
}
.standards-box h3 { font-size: 1rem; text-transform: uppercase; letter-spacing: .6px; color: var(--text-soft); }
.standards-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.standards-list li { display: flex; gap: 12px; align-items: baseline; }
.code {
  font-family: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  font-weight: 700;
  background: var(--code-bg);
  color: #fff;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: .78rem;
  white-space: nowrap;
  border: 1px solid rgba(255,255,255,.12);
}

/* ---------- Bell ringers & exit tickets ---------- */

.bell-grid, .exit-grid { display: grid; gap: 14px; }

.bell-card, .exit-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  --sub-color: var(--teal);
}
.alt-bg .bell-card, .alt-bg .exit-card { background: var(--bg); }

.bell-card .bell-label, .exit-card .bell-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .6px;
  color: var(--sub-color);
  margin-bottom: 8px;
}
.bell-card p.prompt, .exit-card p.prompt { font-weight: 600; margin-bottom: 6px; }

details.reveal { margin-top: 8px; }
details.reveal summary {
  cursor: pointer;
  color: var(--sub-color, var(--link));
  font-weight: 600;
  font-size: .88rem;
  list-style: none;
}
details.reveal summary::-webkit-details-marker { display: none; }
details.reveal summary::before { content: "\25B8  "; }
details.reveal[open] summary::before { content: "\25BE  "; }
details.reveal .answer {
  margin-top: 8px;
  padding: 12px 14px;
  background: var(--soft-fill);
  border-radius: 8px;
  font-size: .92rem;
  color: var(--text-soft);
}

/* ---------- Labs ---------- */

.lab-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: start;
  margin-bottom: 18px;
}
.lab-card h3 { font-size: 1.15rem; margin-bottom: 6px; }
.lab-card .meta { font-size: .82rem; color: var(--muted); margin-bottom: 10px; }
.lab-card .meta span { margin-right: 14px; }
.lab-card p { color: var(--text-soft); font-size: .95rem; margin-bottom: 0; }
.lab-actions { display: flex; flex-direction: column; gap: 8px; align-items: stretch; }
@media (max-width: 620px) { .lab-card { grid-template-columns: 1fr; } }

/* ---------- Simulations ---------- */

.sim-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.sim-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; }
.alt-bg .sim-card { background: var(--bg); }
.sim-card.original { border-color: var(--gold); box-shadow: inset 0 3px 0 var(--gold); }
.sim-card .badge-orig {
  display: inline-block; font-size: .68rem; font-weight: 800; letter-spacing: .6px; text-transform: uppercase;
  background: var(--gold); color: var(--navy); padding: 2px 8px; border-radius: 999px; margin-bottom: 8px;
}
.sim-card h4 { font-size: 1rem; margin-bottom: 6px; }
.sim-card p { font-size: .88rem; color: var(--muted); margin-bottom: 12px; }

/* ---------- Projects ---------- */

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; }
.project-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--card-bg);
  border-top: 4px solid var(--sub-color, var(--teal));
  --sub-color: var(--teal);
}
.project-card .badge {
  font-size: .72rem; font-weight: 700; text-transform: uppercase;
  color: var(--sub-color); letter-spacing: .5px;
}
.project-card h4 { margin: 6px 0; font-size: 1.05rem; }
.project-card p { color: var(--muted); font-size: .9rem; margin: 0; }

/* per-page accent hooks (set on <body class="sub-...">) */
body[class*="sub-"] .bell-card,
body[class*="sub-"] .exit-card,
body[class*="sub-"] .project-card,
body[class*="sub-"] .career-card { --sub-color: var(--sub-accent); }
body.sub-physics { --sub-accent: var(--physics); }
body.sub-chemistry { --sub-accent: var(--chemistry); }
body.sub-biology { --sub-accent: var(--biology); }
body.sub-engineering { --sub-accent: var(--engineering); }
body.sub-environmental { --sub-accent: var(--environmental); }
body.sub-earth { --sub-accent: var(--earth); }
body.sub-anatomy { --sub-accent: var(--anatomy); }
body.sub-data { --sub-accent: var(--data); }

/* ---------- Careers ---------- */

.career-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.career-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-left: 4px solid var(--sub-color, var(--teal));
  border-radius: var(--radius);
  padding: 18px 20px;
  --sub-color: var(--teal);
}
.career-card h4 { font-size: 1.02rem; margin-bottom: 2px; }
.career-card .where { font-size: .8rem; font-weight: 700; color: var(--sub-color); margin-bottom: 8px; }
.career-card p { font-size: .9rem; color: var(--muted); margin: 0; }

/* ---------- Why Does This Matter ---------- */

.wdtm {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  border-radius: 16px;
  padding: 40px;
}
.wdtm .section-head p { color: #b9c6d4; }
.wdtm .section-head .kicker { color: var(--gold); }
.wdtm .section-head h2 { color: #fff; }
.wdtm-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.wdtm-item { background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14); border-radius: 10px; padding: 18px 20px; }
.wdtm-item .tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .5px;
  color: var(--gold); margin-bottom: 8px;
}
.wdtm-item .tag svg { width: 15px; height: 15px; }
.wdtm-item p { color: #dbe4ee; font-size: .92rem; margin: 0; }
@media (max-width: 620px) { .wdtm { padding: 28px 20px; } }

/* ---------- Subnav ---------- */

.subnav { background: var(--card-bg); border-bottom: 1px solid var(--border); position: sticky; top: 61px; z-index: 40; }
.subnav .container { display: flex; gap: 4px; overflow-x: auto; padding-top: 0; padding-bottom: 0; }
.subnav a { white-space: nowrap; padding: 12px 14px; font-size: .88rem; font-weight: 600; color: var(--muted); border-bottom: 3px solid transparent; }
.subnav a:hover { color: var(--text); text-decoration: none; border-bottom-color: var(--gold); }

/* ---------- Footer ---------- */

.site-footer { background: var(--navy); color: #a9b8c8; padding: 40px 0 28px; margin-top: 40px; }
.site-footer .container { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 28px; }
.site-footer a { color: #dbe4ee; }
.site-footer .foot-col h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .8px; margin-bottom: 10px; }
.site-footer .foot-links { display: grid; gap: 6px; list-style: none; padding: 0; margin: 0; font-size: .9rem; }
.site-footer .foot-cols { display: flex; gap: 40px; flex-wrap: wrap; }
.site-footer small { display: block; margin-top: 12px; color: #8294aa; max-width: 360px; }

/* ---------- Misc ---------- */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }

.pill {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  font-size: .74rem; font-weight: 700;
  background: var(--soft-fill); border: 1px solid var(--border); color: var(--text-soft);
}

.table-wrap { overflow-x: auto; }
table.standards-table, table.rubric-table, table.plain-table { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.standards-table th, table.standards-table td,
table.rubric-table th, table.rubric-table td,
table.plain-table th, table.plain-table td {
  text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); vertical-align: top;
}
table.standards-table th, table.rubric-table th, table.plain-table th {
  background: var(--soft-fill); font-family: "Space Grotesk", sans-serif;
}
table.rubric-table td:first-child { font-weight: 700; width: 16%; }

/* ---------- Library / filters ---------- */

.filter-bar {
  display: grid; gap: 14px;
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 18px 20px; margin-bottom: 22px;
}
.filter-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filter-label { font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); min-width: 92px; }
.filter-bar input[type="search"], .filter-bar select, .field select, .field input {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 8px; padding: 9px 12px; min-width: 220px;
}
.filter-row input[type="search"], .filter-row select { flex: 1 1 240px; max-width: 520px; }
.chip {
  border: 1px solid var(--border); background: var(--bg); color: var(--text-soft);
  padding: 6px 13px; border-radius: 999px; font: inherit; font-size: .84rem; font-weight: 600; cursor: pointer;
}
.chip:hover { border-color: var(--teal); }
.chip[aria-pressed="true"] { background: var(--navy); color: #fff; border-color: var(--navy); }
:root[data-theme="dark"] .chip[aria-pressed="true"] { background: var(--gold); color: var(--navy); border-color: var(--gold); }
.result-count { font-weight: 700; color: var(--text-soft); margin-bottom: 14px; }
.result-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.result-card {
  background: var(--card-bg); border: 1px solid var(--border); border-top: 4px solid var(--sub-color, var(--teal));
  border-radius: var(--radius); padding: 18px 20px; display: flex; flex-direction: column; gap: 8px;
}
.result-card h3 { font-size: 1.05rem; margin: 0; }
.result-card .subj { font-size: .74rem; font-weight: 800; text-transform: uppercase; letter-spacing: .6px; color: var(--sub-color, var(--link)); }
.result-card p { font-size: .88rem; color: var(--muted); margin: 0; flex-grow: 1; }
.result-card .tags { display: flex; flex-wrap: wrap; gap: 6px; }
.result-card .actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
.empty-state { padding: 40px; text-align: center; color: var(--muted); border: 1px dashed var(--border); border-radius: var(--radius); }

/* ---------- Teacher-tool pages ---------- */

.tool-panel { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 22px 24px; margin-bottom: 22px; }
.tool-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: end; }
.field { display: grid; gap: 6px; }
.field label { font-size: .76rem; font-weight: 700; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); }

.week-block { margin-bottom: 28px; break-inside: avoid; }
.week-block h3 { font-size: 1.1rem; border-bottom: 2px solid var(--sub-color, var(--gold)); padding-bottom: 6px; }

.dl-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.dl-item {
  display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center;
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 20px;
}
.dl-item h3 { font-size: 1rem; margin-bottom: 4px; overflow-wrap: anywhere; }
.dl-item > div { min-width: 0; }
.dl-item p { margin: 0; font-size: .88rem; color: var(--muted); }
.prov { display: inline-block; font-size: .68rem; font-weight: 800; letter-spacing: .5px; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; margin-right: 6px; }
.prov.real { background: #d7f5e3; color: #0b5a2a; }
.prov.model { background: #fdeccd; color: #7a4b00; }
:root[data-theme="dark"] .prov.real { background: #11402a; color: #8fe3b0; }
:root[data-theme="dark"] .prov.model { background: #4a3510; color: #ffd48a; }
@media (max-width: 620px) { .dl-item { grid-template-columns: 1fr; } }

/* ---------- City chip ---------- */

.city-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #cfd8e3;
  border: 1px solid #4a5a6c;
  border-radius: 6px;
  padding: 6px 10px;
  font-size: .82rem;
  font-weight: 600;
  white-space: nowrap;
  line-height: 1.1;
}
.city-chip:hover { background: rgba(255,255,255,.1); color: #fff; text-decoration: none; }
.city-chip svg { width: 15px; height: 15px; flex: none; }
@media (max-width: 1240px) and (min-width: 1041px) { .city-chip span { display: none; } }
@media (max-width: 520px) { .city-chip span { display: none; } }

/* ---------- Bell-ringer routines and visuals ---------- */

.format-badge {
  display: inline-block;
  font-size: .7rem; font-weight: 800; letter-spacing: .6px; text-transform: uppercase;
  padding: 3px 10px; border-radius: 999px; background: var(--navy); color: #fff;
}
:root[data-theme="dark"] .format-badge { background: var(--gold); color: var(--navy); }
.routine-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(460px, 100%), 1fr)); gap: 18px; }
.routine-card {
  background: var(--card-bg); border: 1px solid var(--border); border-top: 4px solid var(--sub-color, var(--teal));
  border-radius: var(--radius); padding: 18px 20px; display: flex; flex-direction: column; gap: 10px;
}
.routine-card h3 { font-size: 1.05rem; margin: 0; }
.routine-card .meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.routine-card .prompt { font-weight: 600; margin: 0; }
.routine-visual { background: var(--soft-fill); border: 1px solid var(--border); border-radius: 8px; padding: 8px; }
.routine-visual svg { width: 100%; height: auto; display: block; }
.viz text { font-family: "IBM Plex Sans", system-ui, sans-serif; fill: var(--text); }
.viz .m { fill: var(--muted); }
.viz .axis { stroke: var(--muted); stroke-width: 1; }
.viz .grid { stroke: var(--border); stroke-width: 1; }
.student-task {
  border-left: 4px solid var(--gold); background: var(--soft-fill);
  padding: 8px 12px; border-radius: 6px; font-size: .88rem; color: var(--text-soft);
}
.format-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; margin-bottom: 26px; }
.format-card { background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--radius); padding: 14px 16px; font-size: .9rem; }
.format-card h3 { font-size: .98rem; margin-bottom: 4px; }
.format-card p { margin: 0 0 6px; color: var(--muted); }

/* ---------- Print (site pages) ---------- */

@media print {
  .site-header, .subnav, .site-footer, .skip-link, .no-print, .band-toggle, .hero-skyline, .hero-actions { display: none !important; }
  body { background: #fff; color: #000; }
  :root { --card-bg: #fff; --bg: #fff; --text: #000; --muted: #222; --text-soft: #111; --border: #999; }
  .hero { background: none !important; color: #000; padding: 10px 0; }
  .hero h1, .hero p.lead { color: #000; }
  section { padding: 14px 0; }
  .wdtm { background: #fff; color: #000; border: 1px solid #000; }
  .wdtm * { color: #000 !important; }
  details.reveal .answer { display: block; }
  a[href]::after { content: ""; }
}