@font-face { font-family: 'Instrument Serif'; src: url(/assets/fonts/instrument-serif.woff2) format('woff2'); font-display: swap; }
@font-face { font-family: 'Instrument Serif'; font-style: italic; src: url(/assets/fonts/instrument-serif-italic.woff2) format('woff2'); font-display: swap; }
@font-face { font-family: 'Geist'; src: url(/assets/fonts/geist.woff2) format('woff2'); font-weight: 100 900; font-display: swap; }

:root {
  --paper: #f4f1e8; --paper-2: #ebe7da; --card: #fbf9f3; --ink: #17170f; --ink-2: #57564a; --ink-3: #6f6e60; --line: #d6d1c1;
  --accent: #d6410c; --accent-ink: #fff; --tile: #d9d3c3; --shadow: 0 1px 2px rgb(23 23 15 / .06), 0 12px 32px rgb(23 23 15 / .06);
  --serif: 'Instrument Serif', 'Noto Serif', Georgia, 'Nirmala UI', 'Yu Gothic', 'Microsoft YaHei', 'Malgun Gothic', serif;
  --sans: 'Geist', system-ui, 'Segoe UI', 'Nirmala UI', 'Ebrima', 'Yu Gothic', 'Microsoft YaHei', 'Malgun Gothic', sans-serif;
  --mono: ui-monospace, 'Cascadia Code', Consolas, monospace;
  --ease: cubic-bezier(.22, 1, .36, 1); --wrap: min(1240px, calc(100vw - 48px));
  color-scheme: light;
}
[data-theme='dark'] {
  --paper: #14140e; --paper-2: #1c1c15; --card: #1f1f18; --ink: #f1eee3; --ink-2: #b6b3a4; --ink-3: #9c998a; --line: #33332a;
  --accent: #ff6a2e; --accent-ink: #17170f; --tile: #2c2c23; --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 12px 32px rgb(0 0 0 / .3);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 17px/1.55 var(--sans); overflow-x: clip; transition: background-color .35s var(--ease), color .35s var(--ease); }
a { color: inherit; }
img, video { max-width: 100%; display: block; }
h1, h2, h3 { font-family: var(--serif); font-weight: 400; line-height: 1.04; letter-spacing: -.012em; margin: 0; text-wrap: balance; }
h1 { font-size: clamp(3rem, 7.6vw, 6.6rem); }
h2 { font-size: clamp(2.2rem, 4.8vw, 4rem); }
h3 { font-size: 1.7rem; }
p { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
.wrap { width: var(--wrap); margin-inline: auto; }
.lead { font-size: clamp(1.08rem, 1.5vw, 1.28rem); color: var(--ink-2); max-width: 56ch; }
.kicker { font: 500 .8rem/1.3 var(--mono); color: var(--ink-2); text-transform: uppercase; letter-spacing: .07em; }
[dir='rtl'] .kicker, [dir='rtl'] .ticket .t-cat { font-family: var(--sans); letter-spacing: 0; font-size: .95rem; }
.skip { position: absolute; inset-inline-start: -999px; } .skip:focus { inset-inline-start: 12px; top: 12px; z-index: 99; background: var(--card); padding: 8px 12px; }

#scene { position: fixed; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; background: var(--paper); opacity: 0; transition: opacity 1.1s var(--ease); }
#scene.ready { opacity: 1; }


header.site { position: sticky; top: 0; z-index: 20; background: transparent; border-bottom: 1px solid transparent; transition: background-color .3s var(--ease), border-color .3s var(--ease); }
header.site.scrolled, [data-scene='quiet'] header.site { background: color-mix(in srgb, var(--paper) 90%, transparent); border-bottom-color: var(--line); backdrop-filter: blur(10px); }
header.site .wrap { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 400 1.55rem/1 var(--serif); text-decoration: none; }
.brand img { width: 30px; height: 30px; }
[data-theme='dark'] .brand img, [data-theme='dark'] .logo-swap { filter: invert(1) hue-rotate(180deg); }
nav.main { display: flex; gap: 22px; margin-inline-start: auto; }
nav.main a { text-decoration: none; font-size: .95rem; color: var(--ink-2); padding: 8px 0; }
nav.main a:hover { color: var(--ink); }
.tool { display: inline-flex; align-items: center; gap: 8px; min-height: 40px; padding: 0 12px; background: transparent; color: var(--ink); border: 1px solid var(--line); border-radius: 8px; font: 500 .9rem var(--sans); cursor: pointer; transition: border-color .2s var(--ease), background-color .2s var(--ease); }
.tool:hover { border-color: var(--ink); }
.tool svg { transition: transform .5s var(--ease); }
.tool:hover svg { transform: rotate(20deg); }
.tool:active { transform: scale(.94); }
#theme.spin svg { animation: spin .6s var(--ease); }
@keyframes spin { from { transform: rotate(-180deg) scale(.6); opacity: 0; } to { transform: none; opacity: 1; } }
.tool svg { width: 18px; height: 18px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 50px; padding: 0 22px; border: 1px solid var(--ink); border-radius: 8px; font: 500 1rem var(--sans); text-decoration: none; cursor: pointer; background: transparent linear-gradient(var(--ink), var(--ink)) no-repeat 50% 100% / 100% 0%; color: var(--ink); transition: transform .25s var(--ease), background-size .38s var(--ease), color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease); will-change: transform; }
.btn:hover { background-size: 100% 100%; color: var(--paper); box-shadow: 0 10px 24px rgb(0 0 0 / .18); }
.btn:active { transform: scale(.96); transition-duration: .08s; }
.btn:focus-visible, .tool:focus-visible, .down:focus-visible, .chat-open:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn.primary::after { content: '→'; display: inline-block; transition: transform .3s var(--ease); }
[dir='rtl'] .btn.primary::after { content: '←'; }
.btn.primary:hover::after { transform: translateX(5px); }
[dir='rtl'] .btn.primary:hover::after { transform: translateX(-5px); }
.btn.primary { background-color: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn.primary:hover { border-color: var(--ink); color: var(--paper); }
.menu-btn { display: none; }

.hero { position: relative; min-height: 100svh; margin-top: -65px; display: grid; place-items: center; padding: 96px 24px 72px; text-align: center; cursor: default; }
.hero.has-hit { cursor: pointer; }
.hero::before { content: ''; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(66% 50% at 50% 46%, color-mix(in srgb, var(--paper) 68%, transparent), transparent 78%); }
.hero-copy { position: relative; width: min(1120px, 100%); display: grid; justify-items: center; pointer-events: none; }
.hero-copy a, .hero-copy input, .hero-copy button, .hero-copy .search-box { pointer-events: auto; }
.hero-copy .lead { text-align: center; max-width: 60ch; }
.hero .kicker { color: var(--ink); }
[data-theme='dark'] .hero h1, [data-theme='dark'] .hero .lead, [data-theme='dark'] .hero .kicker { text-shadow: 0 2px 24px rgb(0 0 0 / .75); }
.hero .lead { color: var(--ink); }
.hero .search-box { width: min(580px, 100%); text-align: start; }
.hero .search-box input { background: color-mix(in srgb, var(--card) 84%, transparent); backdrop-filter: blur(8px); }
.hero .actions { justify-content: center; }
.hero .btn:not(.primary) { background-color: color-mix(in srgb, var(--paper) 62%, transparent); }
.down { display: inline-grid; place-items: center; width: 52px; height: 52px; margin-top: 22px; border: 1px solid var(--ink); border-radius: 50%; color: var(--ink); overflow: hidden; transition: background-color .25s var(--ease), color .25s var(--ease), transform .25s var(--ease); }
.down svg { animation: nudge 2.2s var(--ease) infinite; }
.down:hover { background: var(--ink); color: var(--paper); }
.down:hover svg { animation: drop .7s var(--ease); }
.down:active { transform: scale(.92); }
.down { position: relative; overflow: visible; }
.down::before, .down::after { content: ''; position: absolute; inset: -1px; border-radius: 50%; border: 1px solid var(--accent); opacity: 0; pointer-events: none; }
.down.fired::before { animation: ring 1.1s var(--ease) forwards; }
.down.fired::after { animation: ring 1.1s .18s var(--ease) forwards; }
.down.fired svg { animation: shoot 1.2s var(--ease); }
@keyframes ring { 0% { transform: scale(1); opacity: .9; } 100% { transform: scale(3.4); opacity: 0; } }
@keyframes shoot { 0% { transform: none; } 35% { transform: translateY(46px); opacity: 0; } 36% { transform: translateY(-46px); opacity: 0; } 100% { transform: none; opacity: 1; } }
.hero h1 .w { display: inline-block; }
/* Search box: a slow ring of light runs round its edge. */
@property --ring { syntax: '<angle>'; inherits: false; initial-value: 0deg; }
.hero .search-box::before { content: ''; position: absolute; inset: -2px; border-radius: 10px; padding: 2px; pointer-events: none;
  background: conic-gradient(from var(--ring), transparent 0 62%, color-mix(in srgb, var(--accent) 80%, transparent) 78%, #ffd28a 84%, transparent 92%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude; animation: ringspin 5s linear infinite; }
.hero .search-box::after { content: ''; position: absolute; inset: -18px; z-index: -1; border-radius: 26px; pointer-events: none; filter: blur(22px); opacity: .35;
  background: conic-gradient(from var(--ring), transparent 0 60%, var(--accent) 80%, transparent 95%); animation: ringspin 5s linear infinite; }
@keyframes ringspin { to { --ring: 360deg; } }
@media (prefers-reduced-motion: reduce) { .hero .search-box::before, .hero .search-box::after { animation: none; } }
@keyframes nudge { 0%, 60%, 100% { transform: none; } 30% { transform: translateY(5px); } }
@keyframes drop { 0% { transform: none; } 45% { transform: translateY(34px); } 46% { transform: translateY(-34px); } 100% { transform: none; } }
.hero h1 { margin: 14px 0 18px; font-size: clamp(3.2rem, 7.4vw, 7.2rem); }
.hero h1 em { color: var(--accent); font-style: italic; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 22px; }
.search-box { position: relative; margin-top: 28px; max-width: 580px; }
.search-box input, .field { width: 100%; min-height: 54px; padding: 0 16px; background: var(--card); color: var(--ink); border: 1px solid var(--ink); border-radius: 8px; font: 400 1.03rem var(--sans); }
.search-results { position: absolute; z-index: 15; inset-inline: 0; top: calc(100% + 6px); background: var(--card); border: 1px solid var(--line); border-radius: 8px; box-shadow: var(--shadow); max-height: 340px; overflow: auto; }
.search-results a { display: flex; justify-content: space-between; gap: 16px; padding: 12px 14px; text-decoration: none; border-bottom: 1px solid var(--line); }
.search-results a:hover, .search-results a:focus { background: var(--paper-2); }
.search-results p { padding: 14px; color: var(--ink-2); }
.ticket { position: absolute; inset-inline-end: 24px; bottom: 84px; width: min(340px, calc(100vw - 48px)); background: var(--card); border: 1px solid var(--line); border-radius: 10px; box-shadow: var(--shadow); padding: 16px 18px; text-align: start; opacity: 0; transform: translateY(10px); pointer-events: none; transition: opacity .25s var(--ease), transform .35s var(--ease); }
.has-hit > .ticket, .ticket:hover { opacity: 1; transform: none; pointer-events: auto; }
.ticket::before, .ticket::after { content: ''; position: absolute; top: 58px; width: 16px; height: 16px; border-radius: 50%; background: var(--paper); border: 1px solid var(--line); }
.ticket::before { left: -9px; } .ticket::after { right: -9px; }
.ticket .code { font: 500 .8rem var(--mono); color: var(--ink-2); display: flex; justify-content: space-between; gap: 12px; padding-bottom: 22px; border-bottom: 1px dashed var(--line); }
.ticket .t-code { white-space: nowrap; flex: none; }
.ticket .t-cat { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.ticket h3 { font-size: 1.5rem; margin-top: 14px; min-height: 2.1em; }
.ticket .row { display: flex; justify-content: space-between; gap: 12px; align-items: baseline; margin-top: 10px; }
.ticket .amount { font: 500 1.15rem var(--sans); }
.ticket a { font-size: .92rem; }
.hint { position: absolute; inset-inline-start: 24px; bottom: 22px; margin: 0; font: 500 .76rem/1.3 var(--mono); letter-spacing: .05em; color: var(--ink); max-width: min(46ch, calc(100vw - 230px)); text-align: start; pointer-events: none; }
[dir='rtl'] .hint { font-family: var(--sans); letter-spacing: 0; }

.facts { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); border-block: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 84%, transparent); backdrop-filter: blur(8px); }
.facts div { padding: 22px 24px; border-inline-end: 1px solid var(--line); }
.facts div:last-child { border: 0; }
.facts b { display: block; font: 400 clamp(2rem, 4vw, 3.3rem)/1 var(--serif); }
.facts span { color: var(--ink-2); font-size: .95rem; }

section.block { padding-block: clamp(72px, 10vw, 136px); position: relative; }
#cats, #how, #demo { margin-top: 70vh; }
#rules { margin-top: 90vh; }
#cats .block-head, #how .block-head, #rules > .wrap > h2, #rules > .wrap > p { background: color-mix(in srgb, var(--paper) 78%, transparent); backdrop-filter: blur(6px); padding: 14px 16px; margin-inline: -16px; border-radius: 8px; }
[data-scene='quiet'] .page { background: linear-gradient(90deg, color-mix(in srgb, var(--paper) 90%, transparent) 62%, color-mix(in srgb, var(--paper) 44%, transparent)); }
.block-head { display: grid; grid-template-columns: 1.1fr .9fr; gap: 24px; align-items: end; margin-bottom: 44px; }
.solid, #book { background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(6px); }
#faq { background: linear-gradient(color-mix(in srgb, var(--paper) 62%, transparent) 78%, transparent); }
#end { height: 90vh; }

.cat-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); background: color-mix(in srgb, var(--paper) 82%, transparent); backdrop-filter: blur(6px); }
.cat-list a { display: grid; grid-template-columns: 56px minmax(0, 1.2fr) minmax(0, 1fr) auto; gap: 20px; align-items: baseline; padding: 18px 8px; border-bottom: 1px solid var(--line); text-decoration: none; transition: background-color .2s var(--ease), padding .3s var(--ease); }
.cat-list a:hover { background: var(--paper-2); padding-inline-start: 18px; }
.cat-list .no { font: 500 .85rem var(--mono); color: var(--ink-2); }
.cat-list .nm { font: 400 clamp(1.45rem, 2.4vw, 2.1rem)/1.1 var(--serif); }
.cat-list .bl { color: var(--ink-2); font-size: .96rem; }
.cat-list .pr { font-size: .93rem; white-space: nowrap; }

.steps { position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; padding-top: 34px; }
.steps svg.line { position: absolute; top: 0; inset-inline: 0; width: 100%; height: 12px; overflow: visible; }
.steps svg.line path { stroke: var(--accent); stroke-width: 2; fill: none; }
.step { background: color-mix(in srgb, var(--paper) 84%, transparent); backdrop-filter: blur(6px); padding: 12px 14px; border-radius: 8px; }
.step .no { font: 500 .85rem var(--mono); color: var(--accent); }
.step h3 { margin: 8px 0 10px; }
.step p { color: var(--ink-2); }

.rules { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 0; border: 1px solid var(--ink); background: var(--card); }
.rules > div { padding: clamp(22px, 3vw, 38px); border-inline-end: 1px solid var(--line); }
.rules > div:last-child { border: 0; }
.rules h3 { font-size: clamp(1.6rem, 2.4vw, 2.3rem); margin-bottom: 12px; }
.rules p { color: var(--ink-2); }

.two { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.video-frame { border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--paper-2); aspect-ratio: 16 / 9; box-shadow: var(--shadow); }
.video-frame iframe { display: block; width: 100%; height: 100%; border: 0; }

.book { display: grid; grid-template-columns: auto 1fr; gap: 32px; align-items: center; }
.book-cover { display: block; width: 210px; border-radius: 2px 6px 6px 2px; overflow: hidden; box-shadow: -6px 0 0 -2px color-mix(in srgb, var(--ink) 30%, transparent), 0 24px 50px -18px rgb(0 0 0 / .55), var(--shadow); transform: perspective(800px) rotateY(-16deg) rotateX(2deg); transition: transform .6s var(--ease), box-shadow .6s var(--ease); }
.book-cover:hover { transform: perspective(800px) rotateY(-3deg); }
.book-cover img { display: block; width: 100%; height: auto; background: #14140e; }
.pick { display: flex; gap: 8px; margin-top: 16px; flex-wrap: wrap; }
.pick select, select.field { min-height: 50px; padding: 0 12px; background: var(--card); color: var(--ink); border: 1px solid var(--ink); border-radius: 8px; font: 400 1rem var(--sans); max-width: 100%; }

.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--paper) 88%, transparent); }
.faq summary { padding: 18px 4px; cursor: pointer; font: 400 1.4rem/1.2 var(--serif); list-style: none; display: flex; justify-content: space-between; gap: 18px; }
.faq summary::after { content: '+'; color: var(--accent); font-family: var(--sans); }
.faq details[open] summary::after { content: '\2212'; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { padding: 0 4px 20px; color: var(--ink-2); max-width: 68ch; }

footer.site { border-top: 1px solid var(--ink); padding-block: 36px; background: var(--paper); font-size: .94rem; }
footer.site .wrap { display: flex; flex-wrap: wrap; gap: 18px 28px; align-items: center; justify-content: space-between; }
footer.site nav { display: flex; flex-wrap: wrap; gap: 18px; }
footer.site a { color: var(--ink-2); }
.note { font-size: .88rem; color: var(--ink-2); max-width: 70ch; }

.page { padding-block: 56px 96px; }
.page > .wrap > h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); margin-bottom: 14px; }
.crumb { font: 500 .84rem var(--mono); color: var(--ink-2); margin-bottom: 14px; display: block; text-decoration: none; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; margin: 28px 0; position: sticky; top: 74px; z-index: 5; }
.toolbar input { flex: 1 1 280px; }
.svc-group { margin-top: 44px; }
.svc-group h2 { font-size: 2.1rem; margin-bottom: 10px; }
.svc-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); background: color-mix(in srgb, var(--paper) 90%, transparent); }
.svc-list a { display: grid; grid-template-columns: 74px 1fr auto; gap: 14px; padding: 12px 6px; border-bottom: 1px solid var(--line); text-decoration: none; align-items: baseline; }
.svc-list a:hover { background: var(--paper-2); }
.svc-list .code { font: 500 .8rem var(--mono); color: var(--ink-2); }
.svc-layout { display: grid; grid-template-columns: 1.3fr .7fr; gap: clamp(28px, 5vw, 72px); align-items: start; margin-top: 28px; }
.scope { list-style: none; padding: 0; margin: 14px 0 0; border-top: 1px solid var(--line); }
.scope li { padding: 12px 2px; border-bottom: 1px solid var(--line); }
.aside-card { background: var(--card); border: 1px solid var(--ink); border-radius: 10px; padding: 22px; position: sticky; top: 84px; }
.aside-card .big { font: 400 2.5rem/1.1 var(--serif); margin: 4px 0 6px; }
.aside-card .btn { width: 100%; margin-top: 14px; }
.form { display: grid; gap: 12px; margin-top: 16px; }
.form label { display: grid; gap: 5px; font-size: .94rem; }
.form textarea.field { min-height: 110px; padding: 12px 14px; resize: vertical; }
.check { display: flex !important; grid-template-columns: none; gap: 10px; align-items: flex-start; }
.hp { position: absolute; inset-inline-start: -9999px; }
.ok { padding: 14px; border: 1px solid var(--ink); border-radius: 8px; background: var(--paper-2); }
.legal { max-width: 76ch; }
.legal h2 { font-size: 2rem; margin: 40px 0 8px; }
.legal h3 { font-size: 1.35rem; margin: 22px 0 4px; font-family: var(--sans); font-weight: 600; letter-spacing: 0; }
.legal p { color: var(--ink-2); }
.mt { margin-top: 18px; font-size: .9rem; color: var(--ink-2); border-inline-start: 2px solid var(--accent); padding-inline-start: 12px; }
.mt[hidden] { display: none; }
.lang-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 8px; margin-top: 18px; }
.lang-grid a { padding: 11px 12px; border: 1px solid var(--line); text-decoration: none; display: flex; justify-content: space-between; gap: 8px; border-radius: 6px; background: var(--card); }
.lang-grid a:hover { border-color: var(--ink); }
.lang-grid small { color: var(--ink-2); font-family: var(--mono); }

dialog.langs { width: min(560px, calc(100vw - 24px)); max-height: 82vh; background: var(--card); color: var(--ink); border: 1px solid var(--ink); border-radius: 10px; padding: 0; }
dialog.langs::backdrop { background: rgb(23 23 15 / .45); }
.langs-head { display: flex; gap: 8px; padding: 12px; border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--card); }
.langs-list { list-style: none; margin: 0; padding: 6px; overflow: auto; overscroll-behavior: contain; max-height: 66vh; }
.langs-list button { width: 100%; display: flex; justify-content: space-between; gap: 12px; padding: 10px 12px; background: none; color: inherit; border: 0; border-radius: 6px; cursor: pointer; font: 400 1rem var(--sans); text-align: start; }
.langs-list button:hover, .langs-list button[aria-current='true'] { background: var(--paper-2); }
.langs-list small { color: var(--ink-2); }

.chat-open { position: fixed; inset-block-end: 18px; inset-inline-end: 18px; z-index: 30; min-height: 50px; padding: 0 18px; background: var(--ink); color: var(--paper); border: 0; border-radius: 8px; font: 500 .98rem var(--sans); cursor: pointer; box-shadow: var(--shadow); transition: transform .25s var(--ease), box-shadow .25s var(--ease); }
.chat-open { transition: transform .25s var(--ease), box-shadow .25s var(--ease), opacity .25s var(--ease), visibility .25s; }
.chat-open.away { opacity: 0; visibility: hidden; transform: translateY(12px); }
.chat-open:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgb(0 0 0 / .3); }
.chat-open:active { transform: scale(.96); }
.chat { position: fixed; inset-block-end: 18px; inset-inline-end: 18px; z-index: 31; width: min(420px, calc(100vw - 24px)); height: min(620px, calc(100svh - 96px)); display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--ink); border-radius: 10px; box-shadow: var(--shadow); overflow: hidden; }
.chat[hidden] { display: none; }
.chat-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-bottom: 1px solid var(--line); font-weight: 500; }
.chat-log { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; padding: 14px; display: flex; flex-direction: column; gap: 12px; }
.msg { max-width: 92%; padding: 10px 12px; border-radius: 8px; font-size: .96rem; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.bot { background: var(--paper-2); }
.msg.me { background: var(--ink); color: var(--paper); margin-inline-start: auto; }
.msg a { font-weight: 500; }
.msg .src { display: block; margin-top: 8px; font-size: .82rem; color: var(--ink-2); }
.msg ul { margin: 8px 0 0; padding-inline-start: 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; padding: 0 14px 10px; }
.chips button { border: 1px solid var(--line); background: none; color: inherit; border-radius: 6px; padding: 7px 10px; font: 400 .87rem var(--sans); cursor: pointer; }
.chips button { transition: transform .2s var(--ease), border-color .2s var(--ease); }
.chips button:hover { border-color: var(--ink); transform: translateY(-2px); }
.chips button:active, .chat form button:active { transform: scale(.95); }
.chat form button { transition: transform .15s var(--ease); }
.chat form { display: flex; gap: 8px; padding: 10px; border-top: 1px solid var(--line); }
.chat form input { flex: 1; min-width: 0; min-height: 44px; padding: 0 12px; background: var(--paper); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; font: 400 16px var(--sans); }
.chat form button { min-height: 44px; padding: 0 14px; background: var(--accent); color: var(--accent-ink); border: 0; border-radius: 6px; font-weight: 500; cursor: pointer; }

.admin { padding-block: 32px 80px; }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--ink); margin: 18px 0 22px; flex-wrap: wrap; }
.tabs button { background: none; color: inherit; border: 0; padding: 10px 14px; cursor: pointer; font: 500 .96rem var(--sans); border-bottom: 3px solid transparent; }
.tabs button[aria-selected='true'] { border-bottom-color: var(--accent); }
table.data { width: 100%; border-collapse: collapse; font-size: .92rem; }
table.data th, table.data td { padding: 9px 8px; border-bottom: 1px solid var(--line); text-align: start; vertical-align: top; }
table.data tr.rowlink { cursor: pointer; } table.data tr.rowlink:hover { background: var(--paper-2); }
pre.prompt { white-space: pre-wrap; background: var(--paper-2); padding: 14px; border-radius: 8px; font: 400 .86rem/1.5 var(--mono); max-height: 380px; overflow: auto; }
.row-gap { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-block: 10px; }
.stat-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.stat-row div { border: 1px solid var(--line); border-radius: 8px; padding: 12px; background: var(--card); }
.stat-row b { display: block; font: 400 1.9rem/1.1 var(--serif); }

@media (max-width: 960px) {
  .hint, .ticket { display: none; }
  .hero { padding-inline: 16px; }
  #cats, #how, #demo { margin-top: 42vh; }
  #rules { margin-top: 56vh; }
  [data-scene='quiet'] .page { background: color-mix(in srgb, var(--paper) 86%, transparent); }
  .block-head, .two, .svc-layout { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .rules { grid-template-columns: 1fr; }
  .rules > div { border-inline-end: 0; border-bottom: 1px solid var(--line); }
  .cat-list a { grid-template-columns: 40px 1fr auto; }
  .cat-list .bl { display: none; }
  .aside-card { position: static; }
  nav.main { display: none; position: absolute; top: 64px; inset-inline: 0; background: var(--paper); padding: 12px 24px; flex-direction: column; gap: 4px; border-bottom: 1px solid var(--line); }
  nav.main.open { display: flex; }
  .menu-btn { display: inline-flex; }
  .head-tools { margin-inline-start: auto; }
}
@media (max-width: 620px) {
  :root { --wrap: calc(100vw - 32px); }
  .facts { grid-template-columns: 1fr 1fr; }
  .facts div:nth-child(2) { border-inline-end: 0; }
  .facts div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .steps { grid-template-columns: 1fr; }
  .book { grid-template-columns: 1fr; }
  .svc-list a { grid-template-columns: 1fr auto; }
  .svc-list .code { display: none; }
  .tool .tool-label { display: none; }
  .toolbar { position: static; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .book-cover { transform: none; }
}
[data-theme='dark'] .book-cover { outline: 1px solid rgb(255 255 255 / .16); outline-offset: -1px; }

/* admin sign-in */
.auth-card { max-width: 420px; margin: 56px auto 40px; padding: 28px 26px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; box-shadow: var(--shadow); }
.auth-card h1 { font-size: 2.4rem; margin-bottom: 12px; }
.auth-card .form { max-width: none; }
.auth-card .or { text-align: center; color: var(--ink-3); font-size: .9rem; margin: 14px 0; }
.btn.google { width: 100%; background-color: var(--paper); }
.btn.google:hover { color: var(--paper); }
.auth-links { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-top: 18px; }
.linkish { background: none; border: 0; padding: 4px 0; color: var(--ink); font: 500 .95rem var(--sans); text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }
.linkish:hover { color: var(--accent); }

/* WhatsApp */
.wa { --wa: #1f8f4e; }
[data-theme='dark'] .wa { --wa: #3ccf7a; }
.btn.wa { border-color: var(--wa); color: var(--wa); background-image: linear-gradient(var(--wa), var(--wa)); }
.btn.wa:hover { color: var(--paper); border-color: var(--wa); }
.btn.wa svg { width: 18px; height: 18px; flex: none; }
.wa-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 330px), 1fr)); gap: 16px; margin-top: 28px; }
.wa-card { display: flex; flex-direction: column; gap: 12px; padding: 20px; background: var(--card); border: 1px solid var(--line); border-radius: 12px; }
.wa-card h2 { font-size: 1.5rem; }
.wa-card pre { margin: 0; white-space: pre-wrap; word-break: break-word; font: 400 .9rem/1.5 var(--sans); color: var(--ink-2); background: var(--paper-2); border-radius: 8px; padding: 12px; flex: 1; }
.wa-card .row-gap { display: flex; gap: 8px; flex-wrap: wrap; }
.wa-num { font: 500 1.1rem var(--mono); }
.wa-foot { display: inline-flex; align-items: center; gap: 6px; }
.wa-foot svg, .wa-chat svg { width: 16px; height: 16px; flex: none; }
#chat .wa-chat { display: inline-flex; margin-top: 10px; padding: 6px 12px; border: 1px solid var(--wa, #1f8f4e); border-radius: 8px; color: #1f8f4e; text-decoration: none; font-weight: 600; }
[data-theme='dark'] #chat .wa-chat { color: #3ccf7a; border-color: #3ccf7a; }

/* admin analytics */
.an-note { margin: 14px 0; padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--card); font-size: .9rem; color: var(--ink-2); }
.an-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 14px 0; }
.an-card { padding: 18px; border: 1px solid var(--line); border-radius: 12px; background: var(--card); display: flex; flex-direction: column; gap: 4px; }
.an-card b { font: 400 2.4rem/1 Georgia, serif; color: var(--accent); }
.an-card.b b { color: #6d5ae6; } .an-card.c b { color: #1f9d6b; } .an-card.d b { color: #1f8f4e; } .an-card.e b { color: #c98a0c; }
.an-card span { font-size: .85rem; color: var(--ink-2); }
.an-box { border: 1px solid var(--line); border-radius: 12px; background: var(--card); margin: 14px 0; overflow: hidden; }
.an-head { display: flex; justify-content: space-between; align-items: center; padding: 12px 16px; border-bottom: 1px solid var(--line); }
.an-chart { display: flex; align-items: flex-end; gap: 8px; height: 190px; padding: 16px; }
.an-col { flex: 1; height: 100%; display: flex; flex-direction: column; justify-content: flex-end; align-items: center; gap: 4px; min-width: 0; }
.an-col small { font-size: .72rem; color: var(--ink-2); }
.an-col > span { font-size: .72rem; color: var(--ink-3); }
.an-stack { width: 100%; min-height: 2px; display: flex; flex-direction: column-reverse; border-radius: 4px 4px 0 0; overflow: hidden; background: var(--line); }
.an-stack i, .an-legend i { display: block; }
i.web { background: var(--accent); } i.my { background: #6d5ae6; } i.vc { background: #1f9d6b; } i.ot { background: var(--ink-3); }
.an-legend { padding: 0 16px 14px; font-size: .8rem; color: var(--ink-2); display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.an-legend i { width: 10px; height: 10px; border-radius: 2px; margin-left: 8px; }
.an-pct { display: inline-block; width: 60px; height: 4px; background: var(--line); border-radius: 2px; margin-right: 8px; vertical-align: middle; overflow: hidden; }
.an-pct i { display: block; height: 100%; background: var(--accent); }

.btn.google.soon { opacity: .6; cursor: not-allowed; gap: 8px; }
.btn.google.soon:hover { color: inherit; background-color: var(--paper); }
.btn.google.soon small { font-size: .72rem; padding: 2px 6px; border: 1px solid var(--line); border-radius: 4px; }