/* IGOEE Prep website (static pages built by tools/site.py). Builds on app.css tokens and components. */

body.site{ min-height:100vh; display:flex; flex-direction:column; }
.skip{ position:absolute; left:-999px; top:8px; background:var(--accent); color:var(--on-accent); padding:8px 12px; border-radius:8px; z-index:100; }
.skip:focus{ left:8px; }
main#main{ flex:1; width:100%; max-width:1080px; margin:0 auto; padding:24px 16px 48px; }

/* ---------- header ---------- */
.sh{ position:sticky; top:0; z-index:var(--z-nav); background:color-mix(in srgb,var(--surface) 94%,transparent); backdrop-filter:blur(10px); -webkit-backdrop-filter:blur(10px); border-bottom:1px solid var(--line); }
.sh-in{ max-width:1080px; margin:0 auto; display:flex; align-items:center; gap:10px; padding:calc(10px + env(safe-area-inset-top,0px)) 16px 10px; }
.sh .brand{ text-decoration:none; }
.sh-sp{ flex:1; }
.sh-nav{ display:flex; align-items:center; gap:2px; margin-left:12px; }
.sh-nav a{ color:var(--ink-soft); text-decoration:none; font-weight:600; font-size:14.5px; padding:7px 10px; border-radius:8px; }
.sh-nav a:hover{ color:var(--ink); background:var(--surface-2); }
.sh-nav a[aria-current="page"]{ color:var(--accent-strong); background:var(--accent-soft); }
.sh-navlogin{ display:none; }
.sh-auth{ display:flex; gap:6px; }
.sh-auth[hidden], .sh-navlogin[hidden]{ display:none !important; }
.sh-menu{ display:none; width:40px; height:40px; border-radius:10px; border:1px solid var(--line); background:var(--surface); color:var(--ink); cursor:pointer; padding:0; align-items:center; justify-content:center; }
.sh-menu svg{ width:22px; height:22px; fill:none; stroke:currentColor; stroke-width:2; stroke-linecap:round; }
@media (max-width:980px){
  .sh-menu{ display:inline-flex; }
  .sh-login{ display:none; }
  .sh-nav{ display:none; position:absolute; left:0; right:0; top:100%; margin:0; flex-direction:column; align-items:stretch; gap:0; padding:8px 12px 14px; background:var(--surface); border-bottom:1px solid var(--line); box-shadow:var(--shadow-2); }
  .sh-nav.open{ display:flex; }
  .sh-nav a{ padding:12px; font-size:16px; }
  .sh-navlogin{ display:block; }
}
@media (max-width:400px){ .sh .brand span:last-child{ display:none; } }

/* Day/night switch: a sliding pill with a sun and a moon (the app uses a round icon button instead). */
.daynight{ position:relative; width:62px; height:32px; flex:none; border-radius:999px; border:1px solid var(--line-strong); background:#dbe9fb; cursor:pointer; padding:0; display:inline-flex; align-items:center; justify-content:space-between; }
.daynight svg{ width:16px; height:16px; fill:none; stroke-width:2; stroke-linecap:round; stroke-linejoin:round; }
.dn-sun, .dn-moon{ position:relative; z-index:1; width:30px; display:flex; justify-content:center; }
.dn-sun svg{ stroke:#b86a00; }
.dn-moon svg{ stroke:#5b6b8c; }
.dn-knob{ position:absolute; top:3px; left:3px; width:24px; height:24px; border-radius:50%; background:#fff; box-shadow:0 1px 3px rgba(0,2,43,.3); transition:transform .2s ease; }
.daynight[aria-checked="true"]{ background:#1a2766; border-color:#2f3f82; }
.daynight[aria-checked="true"] .dn-knob{ transform:translateX(30px); background:#9cc7ff; }
.daynight[aria-checked="true"] .dn-moon svg{ stroke:#00022b; }
.daynight[aria-checked="true"] .dn-sun svg{ stroke:#8b97b4; }
.daynight:focus-visible{ outline:2px solid var(--accent); outline-offset:2px; }
@media (prefers-reduced-motion:reduce){ .dn-knob{ transition:none; } }

/* ---------- footer ---------- */
.sf{ border-top:1px solid var(--line); background:var(--surface); margin-top:24px; }
.sf-in{ max-width:1080px; margin:0 auto; padding:28px 16px calc(28px + env(safe-area-inset-bottom,0px)); }
.sf-cols{ display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:24px; }
.sf-cols nav{ display:flex; flex-direction:column; gap:6px; }
.sf-cols h2{ font-size:13px; text-transform:uppercase; letter-spacing:.8px; color:var(--ink-faint); margin-bottom:4px; }
.sf-cols a{ color:var(--ink-soft); text-decoration:none; font-size:14.5px; }
.sf-cols a:hover{ color:var(--accent); text-decoration:underline; }
.sf-about p{ color:var(--ink-soft); font-size:14.5px; margin-top:10px; max-width:36ch; }
.sf-about .brand{ padding:0; }
.sf-legal{ margin-top:24px; padding-top:16px; border-top:1px solid var(--line); font-size:13px; color:var(--ink-faint); }
@media (max-width:760px){ .sf-cols{ grid-template-columns:1fr 1fr; } .sf-about{ grid-column:1 / -1; } }

/* ---------- page furniture ---------- */
.crumbs{ font-size:13.5px; color:var(--ink-faint); margin:0 0 14px; }
.crumbs a{ color:var(--ink-soft); }
.crumbs span[aria-hidden], .crumbs > span:not([aria-current]){ margin:0 4px; }
.sh-hero h1{ max-width:20ch; }
.sh-cta{ display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px; }
.sh-cta h2{ color:inherit; }
.sh-cta p{ margin-top:4px; }
.article{ max-width:860px; }
.article .section p{ max-width:72ch; margin-top:8px; }
.keyfacts{ margin-top:4px; }
.ticks{ list-style:none; padding-left:0; }
.ticks > li{ position:relative; padding-left:26px; margin:8px 0; }
.ticks > li::before{ content:""; position:absolute; left:4px; top:.45em; width:11px; height:6px; border-left:2.5px solid var(--success); border-bottom:2.5px solid var(--success); transform:rotate(-45deg); }
.ticks ul{ columns:2; margin-top:6px; }
@media (max-width:600px){ .ticks ul{ columns:1; } }
.feature + .feature{ border-top:1px solid var(--line); padding-top:24px; }
.plans .plan h2{ font-size:1.15rem; }
.section .row.between h2{ margin:0; }

/* ---------- sample questions ---------- */
.dq{ padding:18px 20px; }
.dq-meta{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; margin-bottom:10px; font-size:13px; }
.dq-stem{ font-size:17px; line-height:1.55; margin-bottom:12px; }
.dq-opts{ list-style:none; padding:0; margin:0; display:flex; flex-direction:column; gap:8px; }
.dq-opts li{ display:flex; gap:12px; align-items:flex-start; padding:11px 14px; border-radius:var(--radius-l); border:1.5px solid var(--line); background:var(--surface); }
.dq-opts .k{ flex:none; width:26px; height:26px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; font:700 13px var(--font-body); background:var(--surface-2); color:var(--ink-soft); }
.dq.js .dq-opts li{ padding:0; border:0; background:none; }
.dq.js .dq-opts .opt{ width:100%; }
.dq.js .dq-ans{ display:none; }
.dq.js.checked .dq-ans{ display:block; }
.dq.js.checked .dq-ans summary{ display:none; }
.dq-check{ margin-top:12px; }
.dq-result{ margin-top:12px; font:700 16px var(--font-display); }
.dq-result.ok{ color:var(--success); }
.dq-result.bad{ color:var(--danger); }
.dq-ans{ margin-top:14px; padding:14px 16px; border-radius:var(--radius-l); background:var(--surface-2); border:1px solid var(--line); }
.dq-ans summary{ cursor:pointer; font-weight:600; color:var(--accent); }
.dq-key{ margin-top:6px; }
.dq-why{ margin:10px 0 0; padding-left:1.1em; color:var(--ink-soft); font-size:15px; }
.dq-why li{ margin:4px 0; }
.dq-ref{ margin-top:10px; font-size:13px; color:var(--ink-faint); }
.dq-case{ margin:8px 0 0; }
.dq-bar{ position:sticky; top:62px; z-index:5; margin:12px 0; font-weight:600; font-size:14px; color:var(--accent-strong); background:var(--accent-soft); border:1px solid var(--accent-line); border-radius:var(--radius-pill); padding:6px 14px; width:max-content; max-width:100%; }
.dq-bar:empty{ display:none; }
.dq-list{ gap:16px; }
a.card.link{ text-decoration:none; color:inherit; }
a.card.link h2, a.card.link h3{ color:var(--accent-strong); }
.grid.four{ grid-template-columns:repeat(auto-fit,minmax(220px,1fr)); }