/* Shared look for /toll/learn/ pages. Same palette and type as /toll/. */
:root{
  --bg:#F2F2F7; --surface:#FFFFFF; --line:#E0E0E5; --soft:#EBEBF0;
  --ink:#1C1C1E; --mid:#6E6E73; --lo:#8A8A8E;
  --accent:#5B34D1; --accent-dark:#4727A8; --accent-soft:#E9E3FA;
  --blue:#2B5CE6; --blue-soft:#DEE6FC; --gold-soft:#FFF5CC;
  --green:#1F8A3B; --green-soft:#DFF5E4;
  --sans:'Libre Franklin',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.65;-webkit-font-smoothing:antialiased}
.wrap{max-width:980px;margin:0 auto;padding:0 22px}
.read{max-width:700px;margin:0 auto;padding:0 22px}
a{color:inherit;text-decoration:none}
header{position:sticky;top:0;z-index:10;background:rgba(242,242,247,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.logo{font-size:21px;font-weight:700;display:flex;align-items:center;gap:9px}
.logo .dot{width:12px;height:12px;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--accent))}
.nav-links{display:flex;align-items:center;gap:18px}
.nav-links a{color:var(--mid);font-weight:600;font-size:14.5px}
.nav-links a:hover,.nav-links a.on{color:var(--accent)}
.nav-links a.btn,.nav-links a.btn:hover{color:#fff}
.btn{display:inline-block;background:linear-gradient(135deg,var(--blue),var(--accent));color:#fff;font-weight:700;font-size:14.5px;padding:12px 20px;border-radius:999px;transition:transform .15s,opacity .15s;border:0;font-family:inherit}
.btn:hover{transform:translateY(-1px);opacity:.92}
.btn.sm{padding:9px 16px;font-size:13.5px}
.eyebrow{color:var(--accent);font-weight:700;font-size:12.5px;letter-spacing:.16em;text-transform:uppercase}
.hero{padding:54px 0 6px;text-align:center}
h1{font-size:clamp(32px,6vw,48px);line-height:1.07;letter-spacing:-.03em;font-weight:800;margin:14px auto 0;max-width:20ch}
h1 em{font-style:normal;color:var(--accent)}
.lede{color:var(--mid);font-size:18px;margin:18px auto 0;max-width:48ch;text-align:center}
.byline{color:var(--lo);font-size:13px;text-align:center;margin-top:14px}
article{padding:30px 0 8px}
article h2{font-size:24px;letter-spacing:-.02em;font-weight:800;margin:36px 0 10px}
article h3{font-size:17px;margin:24px 0 6px}
article p{font-size:16.5px;margin:12px 0}
article ul,article ol{margin:12px 0 12px 4px;padding-left:22px;font-size:16.5px}
article li{margin:7px 0}
article strong{font-weight:700}
article a{color:var(--accent-dark);text-decoration:underline;text-underline-offset:2px}
.answer{background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--accent);border-radius:16px;padding:20px 22px;margin:8px 0 22px}
.answer p{margin:0;font-size:17px}
.answer p+p{margin-top:10px}
.callout{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;margin:24px 0}
.callout p{margin:0;font-size:15.5px;color:var(--mid)}
.callout p+p{margin-top:8px}
.callout b{color:var(--ink)}
.disclose{background:var(--accent-soft);border-radius:14px;padding:14px 18px;margin:22px 0;font-size:15px}
.disclose p{margin:0;font-size:15px}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:18px 0;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table{border-collapse:collapse;width:100%;min-width:620px;font-size:14.5px}
th,td{text-align:left;vertical-align:top;padding:11px 13px;border-bottom:1px solid var(--line)}
thead th{background:var(--soft);font-weight:700;font-size:13.5px}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:0}
tbody th{font-weight:700;min-width:120px}
td{min-width:160px}
.sources{font-size:14px;color:var(--mid)}
.sources li{margin:6px 0}
.checked{color:var(--lo);font-size:13.5px}
.keep{border-top:1px solid var(--line);margin-top:40px;padding-top:30px}
.keep .eyebrow{display:block;text-align:center;margin-bottom:16px}
.keep .grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.keep a{display:block;background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:18px 20px;transition:transform .15s}
.keep a:hover{transform:translateY(-2px)}
.keep a span{color:var(--accent);font-size:12px;font-weight:700;letter-spacing:.04em}
.keep a h4{font-size:17px;font-weight:700;margin-top:4px;line-height:1.3}
.cta{background:linear-gradient(180deg,#fff,var(--bg));border:1px solid var(--line);border-radius:26px;padding:40px 24px;text-align:center;margin:40px 0 8px}
.cta h2{font-size:clamp(23px,4vw,30px);font-weight:800;letter-spacing:-.02em;margin:8px 0 0}
.cta p{color:var(--mid);margin:8px auto 20px;max-width:46ch}
.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.card{display:block;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:26px;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-2px);box-shadow:0 24px 50px -38px rgba(28,28,30,.45)}
.card .ico{font-size:26px}
.card h3{font-size:19px;font-weight:800;letter-spacing:-.01em;margin:12px 0 8px;line-height:1.25}
.card p{color:var(--mid);font-size:14.5px}
.card .more{color:var(--accent);font-weight:700;font-size:13px;margin-top:12px;display:inline-block}
footer{border-top:1px solid var(--line);padding:34px 0;text-align:center;color:var(--lo);font-size:13px;margin-top:24px}
footer a{color:var(--mid)}footer a:hover{color:var(--ink)}
@media(max-width:680px){.keep .grid,.cards{grid-template-columns:1fr}.nav-links{gap:12px}.nav-links .hide-sm{display:none}}