/* Public test guide (/tests/, /checkups/, /about/). Shared tokens, header and footer come from style.css. */
:root { --tint: #e3f3f3; --high: #c62d27; --low: #9c5c0c; --normal: #197a4b; --shadow: 0 1px 2px rgba(8, 84, 102, .06), 0 10px 26px rgba(8, 84, 102, .07); }
@media (prefers-color-scheme: dark) { :root { --tint: #12302f; --high: #f0716b; --low: #f2a54a; --normal: #47c48a; --shadow: 0 1px 2px rgba(0, 0, 0, .3); } }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.wide { max-width: 1120px; }
.i { width: 20px; height: 20px; flex: none; }
.i.xs { width: 14px; height: 14px; }
.muted { color: var(--muted); }
nav a.nav-cta { color: var(--on-brand); background: var(--brand); padding: 6px 12px; border-radius: 999px; font-weight: 600; white-space: nowrap; }
nav a.nav-cta:hover { color: var(--on-brand); filter: brightness(1.06); }
@media (max-width: 640px) { .hide-sm { display: none; } nav a { margin-left: 12px; } }

.btn { display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 999px; font-weight: 600; font-size: 15px; text-decoration: none; border: 1px solid transparent; transition: transform .15s, box-shadow .2s; }
.btn .i { width: 18px; height: 18px; }
.btn.primary { background: var(--brand); color: var(--on-brand); }
.btn.primary:hover { box-shadow: 0 6px 18px rgba(13, 140, 143, .3); }
.btn.ghost { color: var(--ink); border-color: var(--line); background: var(--card); }
.btn.ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn:active { transform: scale(.97); }

/* breadcrumbs */
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 18px 0 8px; font-size: 14px; color: var(--muted); }
.crumbs li + li::before { content: "›"; margin-right: 6px; }
.crumbs a { color: var(--muted); text-decoration: none; margin-left: 0; font-size: 14px; } .crumbs a:hover { color: var(--brand); }

/* topic badges (same icons, colours and motion as the web app) */
.gicon { width: 44px; height: 44px; border-radius: 13px; display: inline-grid; place-items: center; flex: none; }
.gicon .i { width: 22px; height: 22px; }
.gicon.sm { width: 38px; height: 38px; border-radius: 11px; } .gicon.sm .i { width: 19px; height: 19px; }
.gicon.xs { width: 26px; height: 26px; border-radius: 8px; } .gicon.xs .i { width: 15px; height: 15px; }
.gicon.lg { width: 72px; height: 72px; border-radius: 22px; } .gicon.lg .i { width: 36px; height: 36px; }
.tone-red { background: color-mix(in srgb, #e5484d 14%, transparent); color: #d93a3f; }
.tone-orange { background: color-mix(in srgb, #ff9500 16%, transparent); color: #db7f00; }
.tone-yellow { background: color-mix(in srgb, #f5b800 20%, transparent); color: #8f6700; }
.tone-green { background: color-mix(in srgb, #1f9a5e 16%, transparent); color: #1f9a5e; }
.tone-teal { background: var(--tint); color: var(--brand); }
.tone-blue { background: color-mix(in srgb, #0a84ff 14%, transparent); color: #0a74e0; }
.tone-indigo { background: color-mix(in srgb, #5856d6 15%, transparent); color: #5856d6; }
.tone-purple { background: color-mix(in srgb, #af52de 15%, transparent); color: #9a3fcb; }
.tone-pink { background: color-mix(in srgb, #ff2d55 13%, transparent); color: #e0284c; }
.tone-brown { background: color-mix(in srgb, #a2845e 18%, transparent); color: #8a6a43; }
.tone-grey { background: color-mix(in srgb, #6b7a7d 14%, transparent); color: #6b7a7d; }
@media (prefers-color-scheme: dark) {
  .tone-red { color: #ff7a7e; } .tone-orange { color: #ffb340; } .tone-yellow { color: #ffd60a; } .tone-blue { color: #64b5ff; }
  .tone-indigo { color: #a5a3ff; } .tone-purple { color: #d59cf5; } .tone-pink { color: #ff8aa0; } .tone-brown { color: #d0b088; } .tone-green { color: #47c48a; }
}
.anim-beat .i { animation: beat 1.6s ease-in-out infinite; }
.anim-flicker .i { animation: flicker 2.4s ease-in-out infinite; }
.anim-drip .i { animation: drip 2.4s ease-in-out infinite; }
.anim-float .i, .anim-fill .i { animation: floaty 3.2s ease-in-out infinite; }
.anim-rise .i { animation: rise 2.4s ease-in-out infinite; }
.anim-spin .i { animation: spin 9s linear infinite; }
.anim-wiggle .i { animation: wiggle 2.8s ease-in-out infinite; }
@keyframes beat { 0%, 100% { transform: scale(1); } 14% { transform: scale(1.18); } 28% { transform: scale(1); } 42% { transform: scale(1.12); } 56% { transform: scale(1); } }
@keyframes flicker { 0%, 45%, 100% { opacity: 1; transform: none; } 50% { opacity: .35; transform: scale(.94); } 55% { opacity: 1; transform: scale(1.06); } }
@keyframes drip { 0%, 100% { transform: translateY(-1px); } 50% { transform: translateY(2px) scaleY(1.06); } }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-3px); } }
@keyframes rise { 0%, 100% { transform: translateY(1px); } 50% { transform: translateY(-2px) scale(1.05); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes wiggle { 0%, 100% { transform: rotate(0); } 25% { transform: rotate(-8deg); } 75% { transform: rotate(8deg); } }

/* index */
.g-kicker { font-size: 13px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand); margin: 0 0 6px; }
.g-hero { padding: 18px 0 8px; }
.g-hero h1 { font-size: clamp(32px, 5vw, 46px); line-height: 1.1; letter-spacing: -.02em; margin: 0 0 12px; }
.g-lead { font-size: 18px; color: var(--muted); max-width: 720px; margin: 0 0 18px; }
.g-search { position: relative; display: flex; align-items: center; max-width: 620px; }
.g-search .i { position: absolute; left: 16px; color: var(--muted); }
.g-search input { width: 100%; font: inherit; font-size: 17px; color: var(--ink); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 14px 18px 14px 48px; box-shadow: var(--shadow); }
.g-search input:focus { outline: none; border-color: var(--brand); box-shadow: 0 0 0 4px color-mix(in srgb, var(--brand) 20%, transparent); }
.g-popular { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 14px 0 0; font-size: 14px; color: var(--muted); }
.g-popular a { background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; text-decoration: none; font-weight: 600; }
.g-popular a:hover { border-color: var(--brand); }
.g-block { margin: 34px 0; scroll-margin-top: 20px; }
.g-block h2 { display: flex; align-items: center; gap: 12px; font-size: 22px; margin: 0 0 14px; }
.count { font-size: 13px; font-weight: 700; color: var(--muted); background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 2px 10px; }
.checkup-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; }
.checkup-card { display: flex; flex-direction: column; gap: 6px; background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 18px; text-decoration: none; color: var(--ink); box-shadow: var(--shadow); transition: transform .2s, border-color .2s; }
.checkup-card .gicon { margin-bottom: 4px; }
.checkup-card small { color: var(--muted); font-size: 14px; line-height: 1.45; }
.checkup-card .count { margin-top: auto; align-self: flex-start; display: inline-flex; align-items: center; gap: 2px; color: var(--brand); }
.test-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 12px; }
.test-card { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; text-decoration: none; color: var(--ink); transition: transform .2s, border-color .2s, box-shadow .2s; }
.tc-text { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.tc-text small { color: var(--muted); font-size: 13.5px; line-height: 1.4; }
.caret { color: var(--muted); width: 18px; height: 18px; }
.checkup-card:hover, .test-card:hover { transform: translateY(-2px); border-color: color-mix(in srgb, var(--brand) 45%, var(--line)); box-shadow: var(--shadow); }
[hidden] { display: none !important; }

/* test and checkup pages */
.test-page { max-width: 820px; padding-bottom: 20px; }
.g-head { display: flex; align-items: center; gap: 18px; margin: 10px 0 14px; }
.g-head h1 { font-size: clamp(30px, 4.5vw, 42px); line-height: 1.1; letter-spacing: -.02em; margin: 0; }
.aka { margin: 6px 0 0; color: var(--muted); }
.facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 0 0 22px; }
.facts div { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; }
.facts dt { font-size: 12px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 4px 0 0; font-weight: 600; }
.g-grid { display: grid; gap: 14px; }
.g-sec { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.g-sec h2 { display: flex; align-items: center; gap: 10px; font-size: 18px; margin: 0 0 6px; }
.g-sec h2 .i { color: var(--brand); }
.g-sec.high h2 .i { color: var(--high); } .g-sec.low h2 .i { color: var(--low); }
.g-sec p { margin: 0; }
.med-note { display: flex; gap: 12px; align-items: flex-start; background: var(--tint); border-radius: 14px; padding: 14px 16px; margin: 22px 0; font-size: 14.5px; }
.med-note .i { color: var(--brand); margin-top: 2px; }
.tip { display: flex; gap: 12px; align-items: flex-start; background: var(--tint); border-radius: 14px; padding: 14px 16px; margin: 0 0 18px; }
.tip .i { color: var(--brand); margin-top: 2px; } .tip p { margin: 0; }
.cta-card { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; background: linear-gradient(135deg, #0c787b, #085466); color: #fff; border-radius: 20px; padding: 22px 24px; margin: 22px 0; }
.cta-card h2 { font-size: 20px; margin: 0 0 4px; } .cta-card p { margin: 0; max-width: 460px; }
.cta-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.cta-card .btn.primary { background: #fff; color: #085466; }
.cta-card .btn.ghost { background: rgba(255, 255, 255, .12); border-color: rgba(255, 255, 255, .4); color: #fff; }
.g-related { margin: 26px 0; }
.g-related h2 { font-size: 19px; margin: 0 0 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip-link { display: inline-flex; align-items: center; gap: 8px; background: var(--card); border: 1px solid var(--line); border-radius: 999px; padding: 4px 14px 4px 4px; text-decoration: none; color: var(--ink); font-weight: 600; font-size: 14px; }
.chip-link:hover { border-color: var(--brand); }
.checkup-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checkup-list a { display: flex; align-items: center; gap: 12px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; text-decoration: none; color: var(--ink); transition: transform .2s, border-color .2s; }
.checkup-list a:hover { transform: translateX(3px); border-color: var(--brand); }
.num { width: 26px; height: 26px; border-radius: 50%; background: var(--tint); color: var(--brand); display: grid; place-items: center; font-weight: 700; font-size: 13px; flex: none; }

/* entrance */
/* below-the-fold content fades in; the hero and page heading paint immediately (faster first paint) */
.g-sec, .checkup-card, .test-card { animation: card-in .45s cubic-bezier(.2, .8, .2, 1) both; }
@keyframes card-in { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .gicon .i, .g-hero, .g-head, .facts, .g-sec, .checkup-card, .test-card { animation: none !important; } }
@media (max-width: 560px) { .test-grid { grid-template-columns: 1fr; } .g-head { gap: 14px; } .gicon.lg { width: 56px; height: 56px; } .gicon.lg .i { width: 28px; height: 28px; } }