/* FlipMyTweet: playing-card brutalism. Cream paper, ink outlines, coral + teal + sunflower. */
@font-face { font-family: "Rubik Mono One"; src: url(/assets/fonts/rubik-mono-one-latin-400-normal.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Sen"; src: url(/assets/fonts/sen-latin-400-normal.woff2) format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Sen"; src: url(/assets/fonts/sen-latin-700-normal.woff2) format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Sen"; src: url(/assets/fonts/sen-latin-800-normal.woff2) format("woff2"); font-weight: 800; font-display: swap; }

:root {
  --paper: #FFF4E6; --paper-2: #FBE7CF; --card: #FFFFFF; --ink: #231942; --ink-2: #4A3F6B; --muted: #6A5F86;
  --coral: #E8445E; --coral-soft: #FFD9DE; --teal: #007F7F; --teal-soft: #CDEEEC; --sun: #FFC145; --sun-soft: #FFEFC7;
  --line: #231942; --shadow: #231942; --mark: #FFD24D;
  --display: "Rubik Mono One", "Arial Black", system-ui, sans-serif;
  --body: "Sen", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --r: 18px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --paper: #17112E; --paper-2: #1F1840; --card: #251D4A; --ink: #FFF4E6; --ink-2: #E4D9F2; --muted: #B5A9CF;
    --coral: #FF7A8E; --coral-soft: #4A2140; --teal: #4FD1C9; --teal-soft: #173F48; --sun: #FFC145; --sun-soft: #3D3320;
    --line: #FFF4E6; --shadow: #000000; --mark: #7A5A00;
  }
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 1.0625rem/1.65 var(--body); }
img, svg { max-width: 100%; }
a { color: var(--teal); text-underline-offset: 3px; text-decoration-thickness: 2px; }
a:hover { color: var(--coral); }
:focus-visible { outline: 3px solid var(--coral); outline-offset: 2px; border-radius: 6px; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 14px; border-radius: 8px; z-index: 10; }
.skip:focus { left: 8px; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; }
h1, h2 { font-family: var(--display); font-weight: 400; letter-spacing: -.01em; }
h1 { font-size: clamp(1.75rem, 1.2rem + 2.6vw, 3rem); }
h2 { font-size: clamp(1.25rem, 1rem + 1vw, 1.7rem); }
h3 { font-size: 1.15rem; font-weight: 800; }
.turned { display: inline-block; transform: rotate(180deg); color: var(--coral); }

/* header */
.top { border-bottom: 3px solid var(--line); background: var(--paper); position: relative; }
.top::after { content: ""; position: absolute; left: 0; right: 0; bottom: -9px; height: 6px;
  background: repeating-linear-gradient(90deg, var(--coral) 0 24px, var(--sun) 24px 48px, var(--teal) 48px 72px); }
.top-in { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 70px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand-name { font-family: var(--display); font-size: 1.2rem; letter-spacing: -.02em; }
.menu-btn { display: none; font: 700 .95rem var(--body); background: var(--card); color: var(--ink); border: 2px solid var(--line); border-radius: 999px; padding: 6px 16px; cursor: pointer; }
.nav ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.nav a { display: block; padding: 7px 13px; border-radius: 999px; color: var(--ink); text-decoration: none; font-weight: 700; }
.nav a:hover { background: var(--sun-soft); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--ink); color: var(--paper); }
@media (max-width: 780px) {
  .menu-btn { display: inline-block; }
  .nav { display: none; width: 100%; padding-bottom: 14px; }
  .nav.open { display: block; }
  .nav ul { flex-direction: column; }
}

/* hero + studio */
.hero { padding: 48px 0 40px; }
.hero-in { display: grid; grid-template-columns: 1fr 1.15fr; gap: 40px; align-items: start; }
.hero h1 { font-size: clamp(2rem, 1.3rem + 3.2vw, 3.4rem); }
.h1-turn { display: inline-block; color: var(--coral); transform: rotate(180deg); margin-top: .15em; }
.kicker { font: 800 .8rem/1.2 var(--body); text-transform: uppercase; letter-spacing: .12em; color: var(--teal); margin: 0 0 12px; }
.lede { font-size: 1.15rem; color: var(--ink-2); max-width: 62ch; }
@media (max-width: 900px) { .hero-in { grid-template-columns: 1fr; gap: 24px; } }

.fx-label { display: block; font-weight: 800; font-size: .9rem; margin-bottom: 6px; }
.fx-in { width: 100%; font: 400 1.1rem/1.5 var(--body); color: var(--ink); background: var(--card); border: 3px solid var(--line); border-radius: 14px; padding: 12px 14px; resize: vertical; box-shadow: 4px 4px 0 var(--shadow); }
.fx-in-tall { min-height: 180px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip span { display: inline-block; padding: 7px 13px; border: 2px solid var(--line); border-radius: 999px; font-weight: 700; font-size: .92rem; cursor: pointer; background: var(--card); }
.chip input:checked + span { background: var(--coral); color: #fff; border-color: var(--coral); }
.chip input:focus-visible + span { outline: 3px solid var(--teal); outline-offset: 2px; }

.fx-out { position: relative; background: var(--card); border: 3px solid var(--line); border-radius: var(--r); padding: 14px 16px; box-shadow: 6px 6px 0 var(--shadow); }
.fx-out-big { padding: 22px 26px; }
.fx-out-head { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.fx-out-head .fx-label { margin: 0; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; font-size: .75rem; }
.fx-count { font: 700 .85rem var(--mono); background: var(--teal-soft); color: var(--ink); padding: 2px 8px; border-radius: 999px; white-space: nowrap; }
.fx-count.over { background: var(--coral); color: #fff; }
.fx-text { display: block; font-size: 1.3rem; line-height: 1.5; margin: 10px 0 12px; white-space: pre-wrap; overflow-wrap: anywhere; min-height: 1.5em; }
.fx-out-big .fx-text { font-size: 1.6rem; }
.fx-warn { font-size: .9rem; background: var(--sun-soft); border-left: 4px solid var(--sun); padding: 6px 10px; border-radius: 6px; margin: 0 0 12px; }
.fx-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.studio-card { padding: 30px 46px; min-height: 230px; }
.studio-card .pip { top: 10px; left: 14px; }
.studio-card .pip-flip { bottom: 10px; right: 14px; top: auto; left: auto; }
.fx-stack { display: grid; gap: 18px; margin-top: 18px; }
.fx-list { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
.fx-list .fx-text { font-size: 1.15rem; }
.fx-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; align-items: start; }
.fx-col > * + * { margin-top: 16px; }
@media (max-width: 820px) { .fx-grid { grid-template-columns: 1fr; } }
.fx-opts { border: 2px dashed var(--line); border-radius: 12px; padding: 8px 14px 12px; }
.fx-opts legend { font-weight: 800; padding: 0 6px; font-size: .9rem; }
.fx-opts label, .fx-check { display: block; margin-top: 6px; cursor: pointer; }
.fx-hint { font-size: .92rem; color: var(--muted); }
input[type="range"] { width: 100%; accent-color: var(--coral); }
input[type="radio"], input[type="checkbox"] { accent-color: var(--coral); }

.btn { display: inline-flex; align-items: center; gap: 6px; font: 800 1rem var(--body); text-decoration: none; background: var(--ink); color: var(--paper); border: 3px solid var(--line); border-radius: 999px; padding: 9px 20px; cursor: pointer; box-shadow: 3px 3px 0 var(--coral); }
.btn:hover { color: var(--paper); transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--coral); }
.btn:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--coral); }
.btn-sm { font-size: .9rem; padding: 6px 14px; }
.btn-ghost { background: var(--card); color: var(--ink); box-shadow: 3px 3px 0 var(--teal); }
.btn-ghost:hover { color: var(--ink); }
.btn-x { background: var(--card); color: var(--ink); box-shadow: 3px 3px 0 var(--sun); }
.btn-x:hover { color: var(--ink); box-shadow: 4px 4px 0 var(--sun); }
.btn-x::before { content: "𝕏"; font-weight: 400; }

/* playing cards */
.deck { list-style: none; padding: 0; margin: 0; display: grid; gap: 22px; grid-template-columns: repeat(auto-fill, minmax(min(100%, 300px), 1fr)); }
.pcard a { position: relative; display: flex; flex-direction: column; height: 100%; padding: 46px 26px 50px; background: var(--card); color: var(--ink); text-decoration: none; border: 3px solid var(--line); border-radius: var(--r); box-shadow: 6px 6px 0 var(--shadow); transition: transform .15s ease; }
.pcard a:hover { transform: rotate(-1.5deg) translateY(-3px); color: var(--ink); }
.pcard:nth-child(3n+2) a:hover { transform: rotate(1.5deg) translateY(-3px); }
.pcard h2, .pcard h3 { font-family: var(--body); font-weight: 800; font-size: 1.2rem; letter-spacing: 0; }
.pcard p { color: var(--ink-2); margin: 0 0 14px; flex: 1; }
.pcard-go { font-weight: 800; color: var(--coral); }
.pip { position: absolute; top: 12px; left: 16px; font: 400 1.05rem var(--display); color: var(--coral); line-height: 1; }
.pip-flip { top: auto; left: auto; bottom: 12px; right: 16px; transform: rotate(180deg); color: var(--teal); }
@media (prefers-reduced-motion: reduce) { .pcard a, .btn { transition: none; } .pcard a:hover { transform: none; } }

/* sections */
.section { padding: 44px 0; }
.section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.section-head a { font-weight: 800; }
.band { background: var(--paper-2); border-block: 3px solid var(--line); padding: 48px 0; margin: 20px 0; }
.band-x { background: var(--teal-soft); }
.split { display: grid; grid-template-columns: 1.3fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 860px) { .split { grid-template-columns: 1fr; } }
.ticks { padding-left: 0; list-style: none; }
.ticks li { position: relative; padding-left: 30px; margin: 10px 0; }
.ticks li::before { content: "↻"; position: absolute; left: 0; top: 0; color: var(--coral); font-weight: 800; }
.small { font-size: .92rem; color: var(--muted); }
.xcard { margin: 0; background: var(--card); border: 3px solid var(--line); border-radius: var(--r); padding: 20px 22px; box-shadow: 6px 6px 0 var(--shadow); }
.xcard figcaption { font-weight: 800; margin-bottom: 8px; }
.cost { width: 100%; border-collapse: collapse; }
.cost th, .cost td { text-align: left; padding: 8px 6px; border-bottom: 2px dashed var(--line); font-size: 1.05rem; }
.cost td:last-child, .cost th:last-child { text-align: right; font-family: var(--mono); }
.guide-list { list-style: none; padding: 0; margin: 0; }
.guide-list a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 2px dashed var(--line); color: var(--ink); text-decoration: none; font-weight: 700; }
.guide-list a:hover span { color: var(--coral); }
.guide-list small { color: var(--muted); white-space: nowrap; }

/* docs */
.trail ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 22px 0 0; font-size: .9rem; color: var(--muted); }
.trail li + li::before { content: "↷"; margin-right: 6px; color: var(--coral); }
.doc-head { padding: 22px 0 10px; max-width: 820px; }
.byline { color: var(--muted); font-size: .92rem; }
.doc { display: block; max-width: 760px; }
.doc.has-toc { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 48px; max-width: 1100px; }
.doc.has-toc .doc-head { grid-column: 1 / -1; }
.doc.has-toc .side { grid-column: 2; grid-row: 2; }
.doc.has-toc .prose { grid-column: 1; grid-row: 2; }
@media (max-width: 920px) { .doc.has-toc { grid-template-columns: 1fr; } .doc.has-toc .side, .doc.has-toc .prose { grid-column: 1; grid-row: auto; } }
.toc { position: sticky; top: 16px; border: 3px solid var(--line); border-radius: 14px; padding: 14px 16px; background: var(--card); font-size: .92rem; }
.toc-h { font-weight: 800; margin: 0 0 6px; }
.toc ol { margin: 0; padding-left: 18px; }
.toc li { margin: 4px 0; }
.prose { padding-bottom: 40px; min-width: 0; }
.prose h2 { margin-top: 1.8em; font-size: clamp(1.15rem, 1rem + .7vw, 1.45rem); }
.prose h3 { margin-top: 1.4em; }
.prose p, .prose li { max-width: 70ch; }
.prose code { font-family: var(--mono); background: var(--paper-2); padding: 1px 6px; border-radius: 6px; font-size: .92em; }
.prose blockquote { margin: 1.2em 0; padding: 10px 18px; border-left: 6px solid var(--sun); background: var(--card); border-radius: 0 12px 12px 0; }
.answer, .takeaways { background: var(--card); border: 3px solid var(--line); border-radius: 14px; padding: 14px 18px; margin: 10px 0 18px; box-shadow: 4px 4px 0 var(--teal); }
.answer-h { font-weight: 800; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; color: var(--coral); margin: 0 0 4px; }
.answer p:last-child { margin-bottom: 0; }
.takeaways ul { margin: 0; padding-left: 20px; }
.table-wrap { overflow-x: auto; margin: 1em 0; border: 3px solid var(--line); border-radius: 14px; background: var(--card); }
.table-wrap table { border-collapse: collapse; width: 100%; font-size: .95rem; }
.table-wrap th, .table-wrap td { padding: 9px 12px; border-bottom: 1px solid color-mix(in srgb, var(--line) 25%, transparent); text-align: left; vertical-align: top; }
.table-wrap th { background: var(--sun-soft); }
.qa details { border: 3px solid var(--line); border-radius: 14px; margin: 10px 0; background: var(--card); }
.qa summary { cursor: pointer; padding: 12px 16px; font-weight: 800; list-style: none; position: relative; padding-right: 44px; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "↓"; position: absolute; right: 16px; top: 11px; color: var(--coral); transition: transform .15s; }
.qa details[open] summary::after { transform: rotate(180deg); }
.qa-a { padding: 0 16px 12px; }
.sources ol { padding-left: 20px; font-size: .95rem; }
.share { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: 28px; font-weight: 700; }
.share a, .share button { border: 2px solid var(--line); border-radius: 999px; padding: 4px 12px; background: var(--card); color: var(--ink); text-decoration: none; font: 700 .9rem var(--body); cursor: pointer; }
.related ul { list-style: none; padding: 0; display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.related a { display: block; border: 3px solid var(--line); border-radius: 14px; padding: 12px 14px; background: var(--card); color: var(--ink); text-decoration: none; font-weight: 700; height: 100%; }
.related small { display: block; color: var(--coral); text-transform: uppercase; letter-spacing: .08em; font-size: .72rem; }
.list-foot { margin: 28px 0 40px; color: var(--muted); }
.note { background: var(--sun-soft); padding: 10px 14px; border-radius: 10px; }
.tool { margin: 10px 0 30px; }
.tool-head { max-width: 900px; }

/* counter */
.meter { height: 16px; border: 3px solid var(--line); border-radius: 999px; overflow: hidden; background: var(--card); margin: 16px 0; }
.meter-bar { display: block; height: 100%; width: 0; background: var(--teal); transition: width .15s; }
.meter-bar.near { background: var(--sun); }
.meter-bar.over { background: var(--coral); }
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; margin: 0 0 12px; }
.stats div { background: var(--card); border: 3px solid var(--line); border-radius: 14px; padding: 10px 12px; }
.stats dt { font-size: .8rem; color: var(--muted); font-weight: 700; }
.stats dd { margin: 0; font: 400 1.4rem var(--display); }
.heat { margin-top: 18px; background: var(--card); border: 2px dashed var(--line); border-radius: 14px; padding: 12px 14px; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 1.05rem; }
.heat mark { background: var(--mark); color: inherit; border-radius: 3px; }
.heat .url { background: var(--teal-soft); border-radius: 3px; }

/* 404 */
.nf { padding: 40px 0 60px; }
.nf-big { font: 400 clamp(4rem, 12vw, 8rem)/1 var(--display); color: var(--coral); margin: 0 0 10px; }
.nf-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin: 20px 0 28px; }
@media (max-width: 700px) { .nf-grid { grid-template-columns: 1fr; } }

/* footer */
.foot { border-top: 3px solid var(--line); background: var(--ink); color: var(--paper); margin-top: 40px; padding: 40px 0 20px; }
.foot a { color: var(--paper); }
.foot a:hover { color: var(--sun); }
@media (prefers-color-scheme: dark) { .foot { background: #0E0A1F; color: #FFF4E6; } .foot a { color: #FFF4E6; } }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 28px; }
@media (max-width: 820px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-about { grid-column: 1 / -1; } }
.foot-brand { font: 400 1.3rem var(--display); margin: 0 0 8px; }
.foot-brand .turned { color: var(--sun); }
.foot-h { font-weight: 800; text-transform: uppercase; letter-spacing: .1em; font-size: .8rem; color: var(--sun); margin: 0 0 8px; }
.foot ul { list-style: none; padding: 0; margin: 0; }
.foot li { margin: 6px 0; }
.fine { font-size: .85rem; opacity: .85; }
.foot-base { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid rgba(255,244,230,.25); margin-top: 28px; padding-top: 16px; font-size: .85rem; opacity: .9; }
@media (prefers-color-scheme: dark) { .chip input:checked + span { color: #17112E; } .fx-count.over { color: #17112E; } }