:root {
  --brick: #7A2E1D;
  --brick-dark: #5E2215;
  --brick-soft: #F3E6DF;
  --ink: #1F1A17;
  --muted: #5F564F;
  --line: #E6DDD4;
  --paper: #FBF8F4;
  --card: #FFFFFF;
  --ok: #2F6B3A;
  --radius: 14px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Georgia, "Times New Roman", serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--paper); line-height: 1.65; font-size: 17px; }
img { max-width: 100%; display: block; }
a { color: var(--brick); text-underline-offset: 3px; }
a:hover { color: var(--brick-dark); }
h1, h2, h3 { line-height: 1.25; letter-spacing: -0.01em; margin: 0 0 .5em; text-wrap: balance; }
p, li, summary { text-wrap: pretty; }
h1 { font-size: clamp(2rem, 6vw, 3.2rem); font-weight: 800; }
h2 { font-size: clamp(1.5rem, 4vw, 2.1rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.hidden { display: none !important; }
:focus-visible { outline: 3px solid #C98A6F; outline-offset: 2px; }

/* nav */
.top { background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; min-height: 48px; text-decoration: none; color: var(--ink); font-weight: 800; font-size: 1.15rem; }
.brand img { width: 34px; height: 34px; border-radius: 8px; }
.top .links { display: flex; gap: 18px; margin-left: auto; align-items: center; }
.top .links a { color: var(--ink); text-decoration: none; font-size: .95rem; padding: 10px 2px; }
.top .links a:hover { color: var(--brick); }
.top .links a.btn, .top .links a.btn:hover { color: #fff; padding: 0 16px; }
.top .links .nav-extra { display: none; }
@media (min-width: 760px) { .top .links .nav-extra { display: inline-block; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; text-align: center; gap: 8px; min-height: 48px; padding: 8px 22px; border-radius: 999px; border: 2px solid var(--brick); background: var(--brick); color: #fff; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; }
.btn:hover { background: var(--brick-dark); border-color: var(--brick-dark); color: #fff; }
.btn.ghost { background: transparent; color: var(--brick); }
.btn.ghost:hover { background: var(--brick-soft); color: var(--brick-dark); }
.btn.small { min-height: 44px; padding: 0 16px; font-size: .95rem; }
.top .btn.small { min-height: 44px; }
.btn[disabled] { opacity: .6; cursor: wait; }
.linkbtn { background: none; border: 0; padding: 10px 0; font: inherit; color: var(--brick); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; min-height: 44px; }

/* hero */
.hero { padding: 56px 0 64px; }
.hero .wrap { display: grid; gap: 44px; }
@media (min-width: 960px) { .hero .wrap { grid-template-columns: 1fr 1.05fr; align-items: center; } }
.hero .sub { font-size: 1.15rem; color: var(--muted); max-width: 34em; }
.cta { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; margin-top: 26px; }
.nocard { color: var(--muted); font-size: .95rem; }

/* the product screen */
.screen { background: var(--card); border: 1px solid var(--line); border-radius: 18px; box-shadow: 0 18px 50px -24px rgba(60, 30, 20, .35); overflow: hidden; }
.screen-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 18px; border-bottom: 1px solid var(--line); background: #FDFBF8; }
.screen-bar strong { font-size: .98rem; }
.tag { display: inline-block; font-size: .75rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--brick); background: var(--brick-soft); padding: 3px 9px; border-radius: 999px; }
.screen-body { padding: 18px; }
.round-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; }
.round-tabs span { font-size: .82rem; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.round-tabs span.on { background: var(--brick); border-color: var(--brick); color: #fff; }

/* question rows (sample and app) */
.qlist { list-style: none; margin: 0; padding: 0; }
.qrow { display: grid; grid-template-columns: 2em 1fr; gap: 4px 10px; padding: 14px 0; border-top: 1px solid var(--line); }
.qrow:first-child { border-top: 0; }
.qnum { font-weight: 800; color: var(--brick); }
.qtext { font-weight: 600; }
.qmeta { grid-column: 2; display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: .92rem; }
.qanswer { color: var(--ok); font-weight: 700; }
.qsource { font-size: .88rem; }
.qsentence { grid-column: 2; font-family: var(--serif); font-style: italic; color: var(--muted); font-size: .9rem; margin: 2px 0 0; }
.qmeta .swap { margin-left: auto; }
.screen-foot { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; padding: 14px 18px; border-top: 1px solid var(--line); font-size: .85rem; color: var(--muted); }
.fakebtn { display: inline-block; border: 1.5px solid var(--brick); color: var(--brick); border-radius: 999px; padding: 4px 12px; font-size: .85rem; font-weight: 700; }
.fakebtn.solid { background: var(--brick); color: #fff; }

/* sections */
section { padding: 56px 0; }
@media (min-width: 820px) { section { padding: 76px 0; } }
p.small a, .small a { display: inline-block; padding: 12px 0; margin: -12px 0; }
section.alt { background: #F5EFE8; }
.lead { font-size: 1.1rem; color: var(--muted); max-width: 40em; }
.steps { list-style: none; padding: 0; margin: 32px 0 0; display: grid; gap: 18px; counter-reset: step; }
@media (min-width: 820px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.steps li { counter-increment: step; display: grid; grid-template-columns: 42px 1fr; gap: 0 14px; }
.steps li::before { content: counter(step); grid-row: span 2; display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 50%; background: var(--brick); color: #fff; font-weight: 800; }
.steps li h3 { margin: 4px 0 4px; }
.steps li p { margin: 0; color: var(--muted); }
.grid4 { display: grid; gap: 18px; margin-top: 32px; }
@media (min-width: 820px) { .grid4 { grid-template-columns: repeat(2, 1fr); } }
.feature { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.feature .eg { margin: 14px 0 0; padding: 14px 0 0; border-top: 1px dashed #D8CBBE; font-size: .95rem; }
.feature .eg b { display: block; }
.feature .eg span { color: var(--ok); font-weight: 700; }
.notes { display: grid; gap: 18px; margin-top: 28px; }
@media (min-width: 820px) { .notes { grid-template-columns: 1fr 1fr; } }
.note { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }

/* demo */
.demo { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 24px; margin-top: 28px; }
.demo form { display: flex; flex-wrap: wrap; gap: 10px; }
.demo input { flex: 1 1 220px; }
.demo-out { margin-top: 18px; }

/* price */
.plan { background: var(--card); border: 2px solid var(--brick); border-radius: 20px; padding: 32px 26px; max-width: 460px; margin-top: 30px; }
.plan .amount { font-size: 3rem; font-weight: 800; line-height: 1; }
.plan .amount small { font-size: 1rem; font-weight: 600; color: var(--muted); }
.plan ul { padding: 0; list-style: none; margin: 22px 0 26px; }
.plan li { padding: 7px 0 7px 28px; position: relative; }
.plan li::before { content: ""; position: absolute; left: 4px; top: 15px; width: 10px; height: 6px; border-left: 2.5px solid var(--brick); border-bottom: 2.5px solid var(--brick); transform: rotate(-45deg); }

/* faq */
.faq { margin-top: 28px; }
.faq details { border-top: 1px solid var(--line); padding: 4px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 700; padding: 14px 0; min-height: 44px; list-style-position: outside; }
.faq details p { color: var(--muted); margin: 0 0 16px; }

/* band */
.band { background: var(--brick); color: #fff; text-align: center; }
.band h2 { color: #fff; }
.band p { color: #F3E3DC; }
.band .btn { background: #fff; color: var(--brick); border-color: #fff; }
.band .btn:hover { background: var(--brick-soft); color: var(--brick-dark); }

/* footer */
.foot { padding: 34px 0 44px; border-top: 1px solid var(--line); font-size: .92rem; color: var(--muted); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 12px 24px; align-items: center; justify-content: space-between; }
.foot a { color: var(--muted); display: inline-block; padding: 8px 0; }
.syng-legal-links { display: inline; }

/* forms */
.card { background: var(--card); border: 1px solid var(--line); border-radius: 18px; padding: 28px 24px; }
.auth { padding: 48px 0 72px; }
.auth .card { max-width: 440px; margin: 0 auto; }
label { display: block; font-weight: 700; margin: 16px 0 6px; font-size: .95rem; }
input, select { width: 100%; min-height: 48px; padding: 10px 14px; border: 1.5px solid #CFC4B9; border-radius: 10px; font: inherit; background: #fff; color: var(--ink); }
input:focus, select:focus { border-color: var(--brick); outline: none; box-shadow: 0 0 0 3px rgba(122, 46, 29, .15); }
.hint { font-size: .88rem; color: var(--muted); margin-top: 6px; }
.msg { margin-top: 14px; padding: 12px 14px; border-radius: 10px; font-size: .95rem; }
.msg.err { background: #FBE9E5; color: #8A2414; }
.msg.ok { background: #E8F3EA; color: var(--ok); }
.msg:empty { display: none; }
.form-actions { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.choices { display: grid; gap: 8px; margin-top: 10px; }
.choice { display: flex; gap: 10px; align-items: flex-start; border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; font-weight: 400; margin: 0; cursor: pointer; }
.choice input { width: auto; min-height: 0; margin-top: 5px; }
.choice:has(input:checked) { border-color: var(--brick); background: var(--brick-soft); }

/* app */
.app-main { padding: 32px 0 72px; }
.quiz-head { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: flex-end; margin-bottom: 20px; }
.quiz-head h1 { font-size: clamp(1.6rem, 4.5vw, 2.3rem); margin: 0; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.banner { background: var(--brick-soft); border-radius: 12px; padding: 14px 16px; margin-bottom: 20px; font-size: .95rem; }
.round { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 20px 20px 8px; margin-bottom: 18px; }
.round h2 { font-size: 1.25rem; display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.round h2 small { font-size: .85rem; color: var(--muted); font-weight: 600; }
.writing { color: var(--muted); padding: 10px 0 14px; display: flex; gap: 10px; align-items: center; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--brick); animation: pulse 1.2s infinite ease-in-out; }
@keyframes pulse { 0%, 100% { opacity: .25; } 50% { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .dot { animation: none; } }
.credit { font-size: .85rem; color: var(--muted); margin-top: 8px; }
.side { margin-top: 28px; display: grid; gap: 18px; }
@media (min-width: 900px) { .side { grid-template-columns: 1fr 1fr; } }
.past { list-style: none; padding: 0; margin: 0; }
.past li { border-top: 1px solid var(--line); }
.past a { display: block; padding: 10px 0; }

/* print sheet */
.sheet { background: #fff; color: #000; max-width: 780px; margin: 0 auto; padding: 36px 28px; font-family: var(--serif); }
.sheet h1 { font-size: 1.7rem; margin-bottom: .2em; }
.sheet h2 { font-size: 1.2rem; margin: 1.4em 0 .5em; border-bottom: 1.5px solid #000; padding-bottom: 4px; }
.sheet ol { margin: 0; padding-left: 1.6em; }
.sheet li { margin: 0 0 .7em; }
.sheet .ans { font-weight: 700; }
.sheet .src { font-size: .82rem; color: #333; word-break: break-all; }
.sheet .lines { border-bottom: 1px solid #999; height: 1.6em; }
.sheet .credit { color: #333; margin-top: 2em; border-top: 1px solid #999; padding-top: 8px; }
.print-tools { max-width: 780px; margin: 16px auto; padding: 0 20px; display: flex; gap: 10px; flex-wrap: wrap; }
@media print {
  .top, .foot, .print-tools, .no-print { display: none !important; }
  body { background: #fff; font-size: 12pt; }
  .sheet { padding: 0; max-width: none; }
  .sheet h2 { break-after: avoid; }
  .sheet li { break-inside: avoid; }
}