/* SeatSheet. The Quietworks sheet family look (chunky outlines, offset "sticker" shadows) on a bubblegum-orchid
   hero, a chalkboard-green classroom and pencil-yellow buttons. Self-hosted Bricolage Grotesque (OFL, see
   /fonts/OFL.txt). No external requests. No inline styles anywhere (the CSP forbids them): seat positions are
   classes (.gx-N / .gy-N, .tcols-N, .ucols-N), printed type sizes are classes (.ps-*). */

@font-face {
  font-family: 'Bricolage';
  src: url('/fonts/bricolage-grotesque.woff2') format('woff2-variations'), url('/fonts/bricolage-grotesque.woff2') format('woff2');
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
}

:root {
  --ball: #ffd23f; /* pencil yellow: selected options, ticks, tags */
  --court: #1d6b52; /* chalk green: input focus, highlighted plan */
  --court-2: #6d1265; /* plum: small PLANNED tags (white text) */
  --coral: #ff4fbf; /* orchid pop: shadows, bullets */
  --chalk: #1d4a3c; /* the classroom floor (chalkboard green) */
  --sky: #5ec8ff;
  --sun: #ffd23f;
  --grape: #9b6bff;
  --mint: #3ee0b0;
  --tang: #ff9f1c;
  --peri: #9db7ff;
  --lime: #b6f03c;
  --pink: #ff5fc8;
  --deep: #10231d; /* fixed ink for outlines and paper */

  --bg: #fff8f3;
  --bg-alt: #fdeefa;
  --surface: #ffffff;
  --surface-2: #f7f1f6;
  --ink: #10231d;
  --ink-soft: #45505a;
  --line: #10231d;
  --shadow: #10231d;
  --hero-bg: #ffa6ec; /* dark ink on it: 9:1 */
  --hero-ink: #10231d;
  --hero-line: rgba(255, 255, 255, 0.5);
  --brand-b: #6d1265; /* on the orchid header: 6:1 */
  --mark-bg: #1d4a3c;
  --mark-ink: #ffe066;
  --pop-btn: #ffd23f; /* dark ink: 12:1 */
  --pop-ink: #10231d;
  --chip-bg: #ffffff;
  --ok-bg: #dcf7b0;
  --ok-ink: #2c4a00;
  --bad-bg: #ffe0dc;
  --bad-ink: #9b1408;
  --warn-bg: #fff1c2;
  --warn-ink: #5c3d00;
  --band: #1d4a3c;
  --band-ink: #ffffff;
  --focus: #6d1265;

  --font: 'Bricolage', ui-rounded, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, Roboto, Arial, sans-serif;
  --wrap: 1220px;
  --gutter: clamp(16px, 4vw, 40px);
  --r: 22px;
  --bw: 3px;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --bg: #0b1c17;
    --bg-alt: #0f2620;
    --surface: #143229;
    --surface-2: #1b3f34;
    --ink: #f1fff8;
    --ink-soft: #c4dcd2;
    --line: #f1fff8;
    --shadow: #ffa6ec;
    --hero-bg: #12332a;
    --hero-ink: #f1fff8;
    --hero-line: rgba(255, 166, 236, 0.12);
    --brand-b: #ffa6ec;
    --mark-bg: #ffa6ec;
    --mark-ink: #10231d;
    --chip-bg: #1b3f34;
    --ok-bg: #2c4a00;
    --ok-ink: #d9f99d;
    --bad-bg: #5a1710;
    --bad-ink: #ffc9c2;
    --warn-bg: #4a3500;
    --warn-ink: #ffe49a;
    --band: #6d1265;
    --band-ink: #ffffff;
    --focus: #ffd23f;
    color-scheme: dark;
  }
}
:root[data-theme='dark'] {
  --bg: #0b1c17;
  --bg-alt: #0f2620;
  --surface: #143229;
  --surface-2: #1b3f34;
  --ink: #f1fff8;
  --ink-soft: #c4dcd2;
  --line: #f1fff8;
  --shadow: #ffa6ec;
  --hero-bg: #12332a;
  --hero-ink: #f1fff8;
  --hero-line: rgba(255, 166, 236, 0.12);
  --brand-b: #ffa6ec;
  --mark-bg: #ffa6ec;
  --mark-ink: #10231d;
  --chip-bg: #1b3f34;
  --ok-bg: #2c4a00;
  --ok-ink: #d9f99d;
  --bad-bg: #5a1710;
  --bad-ink: #ffc9c2;
  --warn-bg: #4a3500;
  --warn-ink: #ffe49a;
  --band: #6d1265;
  --band-ink: #ffffff;
  --focus: #ffd23f;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.55 var(--font); overflow-x: hidden; }
a { color: inherit; text-decoration-thickness: 2px; text-underline-offset: 3px; }
h1, h2, h3, h4 { line-height: 1.05; letter-spacing: -0.02em; margin: 0 0 0.4em; font-weight: 800; }
p { margin: 0 0 1em; }
code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 0.88em; background: var(--surface-2); padding: 0.05em 0.35em; border-radius: 6px; }
button, input, select, textarea { font: inherit; color: inherit; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
legend { padding: 0; margin-bottom: 8px; }
abbr { text-decoration: none; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; }
.site-header, .hero { --focus: var(--hero-ink); }
.marquee, .site-footer, .sister-panel, .board-frame, .big-chart-frame { --focus: #ffd23f; }
.pro-card, .table { --focus: #6d1265; }
[hidden] { display: none !important; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: 820px; }
.center { text-align: center; margin-left: auto; margin-right: auto; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; background: var(--ink); color: var(--bg); padding: 10px 14px; min-height: 44px; border-radius: 10px; }
.skip:focus { left: 8px; }
main:focus { outline: none; }
.fine { font-size: 0.86rem; color: var(--ink-soft); margin: 0.6em 0 0; }
.test-banner { background: var(--sun); color: var(--deep); text-align: center; font-weight: 700; padding: 6px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.print-sheet { display: none; }

/* ---------- Buttons ---------- */
.btn {
  --sh: 4px;
  display: inline-flex; align-items: center; justify-content: center; gap: 0.45em;
  padding: 0.62em 1.25em; border: var(--bw) solid var(--line); border-radius: 999px;
  background: var(--surface); color: var(--ink); font-weight: 750; text-decoration: none; cursor: pointer;
  box-shadow: var(--sh) var(--sh) 0 var(--shadow); transition: transform 0.14s ease, box-shadow 0.14s ease, background-color 0.14s;
  white-space: nowrap; line-height: 1.2; min-height: 44px;
}
.btn:hover { transform: translate(-2px, -2px); box-shadow: calc(var(--sh) + 2px) calc(var(--sh) + 2px) 0 var(--shadow); }
.btn:active { transform: translate(var(--sh), var(--sh)); box-shadow: 0 0 0 var(--shadow); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; box-shadow: var(--sh) var(--sh) 0 var(--shadow); }
.btn-pop { background: var(--pop-btn); color: var(--pop-ink); border-color: var(--deep); box-shadow: var(--sh) var(--sh) 0 var(--deep); }
.btn-pop:hover { box-shadow: calc(var(--sh) + 2px) calc(var(--sh) + 2px) 0 var(--deep); }
.btn-ghost { background: var(--surface); }
.btn-ink { background: var(--deep); color: #f1fff8; border-color: var(--deep); }
.btn-sm { --sh: 3px; padding: 0.42em 0.95em; font-size: 0.92rem; }
.btn-round { width: 44px; height: 44px; padding: 0; font-size: 1.2rem; }
.btn-xl { --sh: 6px; font-size: clamp(1.15rem, 2.4vw, 1.45rem); padding: 0.7em 1.4em; }
.btn-block { width: 100%; }
.btn .arrow { display: inline-block; transition: transform 0.2s; }
.btn:hover .arrow { transform: translateX(5px); }
.linkish { background: none; border: 0; padding: 0; color: inherit; font-weight: 750; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; cursor: pointer; }

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--hero-bg) 94%, transparent); backdrop-filter: blur(10px); border-bottom: var(--bw) solid var(--line); color: var(--hero-ink); }
.header-inner { display: flex; align-items: center; gap: 18px; min-height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.45rem; letter-spacing: -0.03em; text-decoration: none; }
.brand b { color: var(--brand-b); font-weight: 800; }
.logo-mark { width: 34px; height: 34px; transition: transform 0.4s cubic-bezier(.3, 1.6, .5, 1); }
.brand:hover .logo-mark { transform: rotate(-12deg) scale(1.08); }
.site-footer .brand b { color: var(--ball); }
.nav { margin-left: auto; display: flex; gap: 22px; font-weight: 700; align-items: center; }
.nav a { text-decoration: none; position: relative; white-space: nowrap; }
.nav a::after { content: ''; position: absolute; left: 0; right: 0; bottom: -4px; height: 3px; background: var(--hero-ink); transform: scaleX(0); transform-origin: left; transition: transform 0.2s; border-radius: 3px; }
.nav a:hover::after { transform: scaleX(1); }
.theme-toggle { width: 42px; height: 42px; border-radius: 50%; border: var(--bw) solid var(--line); background: var(--surface); display: grid; place-items: center; cursor: pointer; transition: transform 0.3s; flex: none; }
.theme-toggle:hover { transform: rotate(-20deg) scale(1.06); }
.theme-toggle svg { width: 20px; height: 20px; fill: none; stroke: var(--ink); stroke-width: 2.4; stroke-linecap: round; }
.theme-toggle .i-moon { fill: var(--ink); stroke: none; }
.theme-toggle .i-sun { display: none; }
:root[data-theme='dark'] .theme-toggle .i-sun { display: block; }
:root[data-theme='dark'] .theme-toggle .i-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .theme-toggle .i-sun { display: block; }
  :root:not([data-theme='light']) .theme-toggle .i-moon { display: none; }
}
@media (max-width: 860px) {
  .nav a:not(.nav-all) { display: none; } /* phones keep only the "All tools" pill */
  .nav { gap: 0; }
  .brand { font-size: 1.25rem; }
  .header-inner { gap: 10px; min-height: 60px; }
}
@media (max-width: 420px) {
  .header-inner { gap: 7px; }
  .brand { font-size: 1.08rem; gap: 6px; }
  .logo-mark { width: 28px; height: 28px; }
  .header-cta { font-size: 0.85rem; padding-inline: 0.75em; }
}
@media (max-width: 359px) {
  .site-header .header-inner { gap: 4px; padding-inline: 12px; }
  .brand { font-size: 0.96rem; gap: 5px; letter-spacing: -0.04em; }
  .logo-mark { width: 26px; height: 26px; }
  .header-cta { font-size: 0.8rem; padding-inline: 0.6em; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; background-color: var(--hero-bg); color: var(--hero-ink); padding: clamp(28px, 5vw, 64px) 0 clamp(40px, 6vw, 80px); overflow: hidden; overflow: clip; isolation: isolate;
  /* graph-paper lines */
  background-image: linear-gradient(var(--hero-line) 2px, transparent 2px), linear-gradient(90deg, var(--hero-line) 2px, transparent 2px);
  background-size: 44px 44px;
}
:root[data-theme='dark'] .hero { background-image: linear-gradient(var(--hero-line) 2px, transparent 2px), linear-gradient(90deg, var(--hero-line) 2px, transparent 2px), radial-gradient(900px 520px at 85% 0%, rgba(255, 79, 191, 0.32), transparent 62%), linear-gradient(160deg, #173f33, #0b1c17); background-size: 44px 44px, 44px 44px, auto, auto; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) .hero { background-image: linear-gradient(var(--hero-line) 2px, transparent 2px), linear-gradient(90deg, var(--hero-line) 2px, transparent 2px), radial-gradient(900px 520px at 85% 0%, rgba(255, 79, 191, 0.32), transparent 62%), linear-gradient(160deg, #173f33, #0b1c17); background-size: 44px 44px, 44px 44px, auto, auto; }
}
/* Floating sticky notes and paper planes. */
.hero-deco i {
  position: absolute; z-index: -1; width: 48px; height: 48px; border-radius: 6px; border: var(--bw) solid var(--deep); box-shadow: 4px 4px 0 var(--deep);
  background: linear-gradient(transparent 62%, rgba(16, 35, 29, 0.12) 62%, rgba(16, 35, 29, 0.12) 68%, transparent 68%), var(--sun);
  animation: bounce 3.4s cubic-bezier(.4, 0, .6, 1) infinite; rotate: -8deg;
}
.hero-deco i:nth-child(1) { top: 9%; right: 4%; }
.hero-deco i:nth-child(2) { top: 56%; left: -14px; width: 40px; height: 40px; animation-delay: -0.7s; background-color: var(--mint); rotate: 10deg; }
.hero-deco i:nth-child(3) { bottom: 6%; right: 42%; width: 34px; height: 34px; animation-delay: -1.4s; background-color: #fff; rotate: 14deg; }
.hero-deco i:nth-child(4) { top: 4%; left: 44%; width: 30px; height: 30px; animation-delay: -2.1s; background-color: var(--sky); }
.hero-deco i:nth-child(5) { bottom: 12%; left: 3%; width: 38px; height: 38px; animation-delay: -1s; background-color: var(--coral); rotate: -14deg; }
@media (max-width: 760px) { .hero-deco i:nth-child(1), .hero-deco i:nth-child(4) { display: none; } }
@keyframes bounce { 0%, 100% { translate: 0 0; } 50% { translate: 0 -18px; } }

.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-weight: 750; font-size: 0.95rem; padding: 6px 14px 6px 10px; border: var(--bw) solid var(--line); border-radius: 999px; background: var(--surface); color: var(--ink); box-shadow: 3px 3px 0 var(--shadow); margin-bottom: 18px; }
.eyebrow .dot { width: 11px; height: 11px; border-radius: 50%; background: var(--coral); animation: ping 1.8s infinite; }
@keyframes ping { 0% { box-shadow: 0 0 0 0 rgba(255, 79, 191, 0.7); } 80%, 100% { box-shadow: 0 0 0 10px rgba(255, 79, 191, 0); } }
.hero-title { font-size: clamp(2.6rem, 6.2vw, 4.7rem); line-height: 0.95; letter-spacing: -0.045em; margin-bottom: 0.3em; max-width: 13ch; }
.hero-cta-row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin: -6px 0 clamp(22px, 3vw, 34px); }
.hero-cta-note { font-weight: 700; font-size: 0.95rem; }
.hero-title-format { font-size: clamp(2.2rem, 5vw, 4rem); max-width: 15ch; }
.hero-emoji { display: inline-block; animation: wiggle 2.6s ease-in-out infinite; transform-origin: 50% 80%; }
@keyframes wiggle { 0%, 100% { transform: rotate(-4deg); } 50% { transform: rotate(4deg) scale(1.04); } }
/* The marker word is written on the chalkboard and drops in. */
.hero-title mark {
  color: var(--mark-ink); padding: 0 0.16em 0.06em; margin: 0 -0.04em; border-radius: 0.24em; display: inline-block; transform: rotate(-2deg);
  background: var(--mark-bg); box-shadow: 0 0 0 var(--bw) var(--deep), 5px 5px 0 var(--bw) var(--deep);
  animation: drop 0.9s cubic-bezier(.3, 1.5, .5, 1) 0.25s both;
}
@keyframes drop { from { transform: translateY(-60%) rotate(-14deg); opacity: 0; } to { transform: rotate(-2deg); opacity: 1; } }
.hero-lede { font-size: clamp(1.1rem, 2vw, 1.3rem); max-width: 44ch; margin-bottom: clamp(22px, 3vw, 32px); }
.hero-lede b { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--sun) 80%, transparent) 58%); }
:root[data-theme='dark'] .hero-lede b { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--coral) 45%, transparent) 58%); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .hero-lede b { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--coral) 45%, transparent) 58%); } }
.crumbs { font-size: 0.9rem; font-weight: 650; margin-bottom: 14px; opacity: 0.9; }
.crumbs a { text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }

/* ---------- Generator ---------- */
.gen { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); grid-template-areas: 'intro preview' 'form preview'; column-gap: clamp(28px, 4.5vw, 64px); row-gap: 8px; align-items: start; }
.gen-intro { grid-area: intro; }
.gen-form { grid-area: form; scroll-margin-top: 90px; }
.preview { grid-area: preview; position: sticky; top: 88px; }
@media (max-width: 960px) {
  .gen { grid-template-columns: minmax(0, 1fr); grid-template-areas: 'intro' 'preview' 'form'; row-gap: 22px; }
  .preview { position: relative; top: 0; }
}
.panel { background: var(--surface); color: var(--ink); border: var(--bw) solid var(--line); border-radius: var(--r); box-shadow: 8px 8px 0 var(--shadow); }
.gen-form { padding: clamp(18px, 2.6vw, 30px); display: grid; gap: 18px; animation: rise 0.6s cubic-bezier(.2, .9, .3, 1.2) both; }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: none; } }
.field { display: grid; gap: 8px; min-width: 0; align-content: start; }
.lbl { font-size: 0.78rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-soft); }
.lbl-note { text-transform: none; letter-spacing: 0; font-weight: 600; opacity: 0.85; }
.lbl-row { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; }
/* Field outline 55% ink: 3.7:1+ on the white panel and its tint in light and dark (WCAG 1.4.11). */
.input { width: 100%; border: var(--bw) solid color-mix(in srgb, var(--line) 55%, transparent); background: var(--surface-2); border-radius: 14px; padding: 0.6em 0.85em; transition: border-color 0.15s, box-shadow 0.15s; }
.input:focus { outline: none; border-color: var(--court); box-shadow: 0 0 0 4px color-mix(in srgb, var(--court) 30%, transparent); }
.input[aria-invalid='true'] { border-color: var(--bad-ink); box-shadow: 0 0 0 3px color-mix(in srgb, var(--bad-ink) 25%, transparent); }
.input-title { font-size: 1.25rem; font-weight: 750; }
.input-sm { padding: 0.45em 0.7em; border-radius: 10px; font-size: 1rem; width: auto; max-width: 100%; min-height: 44px; }
.names { min-height: 150px; resize: vertical; line-height: 1.45; font-size: 1rem; unicode-bidi: plaintext; }
.list-row { display: grid; gap: 14px; }
.list-row-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 480px) { .list-row-2 { grid-template-columns: 1fr; } }
.hint { font-size: 0.85rem; color: var(--ink-soft); margin: -8px 0 0; }
.field .hint { margin: 0; }
.badge { font-size: 0.82rem; font-weight: 800; padding: 3px 11px; border-radius: 999px; transition: background-color 0.2s, color 0.2s; }
.badge.ok { background: var(--ok-bg); color: var(--ok-ink); }
.badge.bad { background: var(--bad-bg); color: var(--bad-ink); animation: shake 0.35s; }
@keyframes shake { 25% { transform: translateX(-3px); } 75% { transform: translateX(3px); } }
.chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: -6px; }
.chips-lbl { font-weight: 800; font-size: 0.85rem; }
.chip { --c: var(--sun); display: inline-flex; align-items: center; gap: 6px; border: 2px solid color-mix(in srgb, var(--line) 25%, transparent); background: var(--chip-bg); border-radius: 999px; padding: 0.3em 0.85em; font-weight: 700; font-size: 0.9rem; cursor: pointer; text-decoration: none; transition: transform 0.15s, border-color 0.15s, background-color 0.15s; }
.chip:hover { transform: translateY(-2px) rotate(-1.5deg); border-color: var(--c); }
.chip-quick { --c: var(--ball); font-variant-numeric: tabular-nums; }
.c-pink { --c: var(--pink); } .c-tang { --c: var(--tang); } .c-sun { --c: var(--sun); } .c-mint { --c: var(--mint); }
.c-sky { --c: var(--sky); } .c-grape { --c: var(--grape); } .c-lime { --c: var(--lime); } .c-peri { --c: var(--peri); } .c-coral { --c: var(--coral); }

/* Format picker: real radio buttons inside big labels. */
.opt { position: relative; cursor: pointer; display: flex; align-items: center; }
.opt input { position: absolute; opacity: 0; width: 1px; height: 1px; margin: 0; }
.modes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
@media (max-width: 340px) { .modes { grid-template-columns: minmax(0, 1fr); } }
.mode-opt { gap: 10px; padding: 8px 12px; border: 2px solid color-mix(in srgb, var(--line) 30%, transparent); border-radius: 14px; background: var(--chip-bg); min-height: 52px; transition: transform 0.15s, background-color 0.15s; }
.mode-opt:hover { transform: translateY(-2px); }
.mode-ico { flex: none; display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--deep); color: #fff; font-weight: 800; font-size: 0.95rem; }
.mode-txt { display: grid; gap: 1px; line-height: 1.2; min-width: 0; }
.mode-txt b { font-weight: 800; font-size: 0.98rem; }
.mode-txt small { font-size: 0.8rem; font-weight: 600; opacity: 0.85; }
.opt:has(input:checked) { background: var(--ball); color: var(--deep); border-color: var(--deep); box-shadow: 3px 3px 0 var(--deep); }
.opt:has(input:focus-visible) { outline: 3px solid var(--focus); outline-offset: 2px; }

.steppers { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 360px) { .steppers { grid-template-columns: 1fr; } }
.stepper { display: flex; align-items: stretch; border: var(--bw) solid var(--line); border-radius: 16px; overflow: hidden; background: var(--surface-2); width: max-content; max-width: 100%; }
.step-btn { width: 48px; min-height: 48px; border: 0; background: var(--deep); color: #fff; font-size: 1.5rem; font-weight: 800; cursor: pointer; transition: background-color 0.15s; }
:root[data-theme='dark'] .step-btn { background: #1d6b52; }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .step-btn { background: #1d6b52; } }
.step-btn:hover { background: #1d6b52; }
.step-btn:active { transform: scale(0.94); }
.step-in { width: 4.2ch; min-width: 64px; text-align: center; border: 0; border-radius: 0; font-size: 1.35rem; font-weight: 800; background: transparent; -moz-appearance: textfield; appearance: textfield; padding: 0.3em 0.2em; }
.step-in::-webkit-outer-spin-button, .step-in::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.step-in:focus { box-shadow: inset 0 0 0 3px var(--court); }

details.more { border: 2px dashed color-mix(in srgb, var(--line) 30%, transparent); border-radius: 16px; padding: 0 14px; }
details.more summary { cursor: pointer; font-weight: 800; padding: 10px 0; list-style: none; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; min-height: 44px; }
details.more summary::-webkit-details-marker { display: none; }
details.more summary::before { content: '+'; display: grid; place-items: center; width: 22px; height: 22px; border-radius: 7px; background: var(--ink); color: var(--bg); font-size: 1rem; line-height: 1; transition: transform 0.2s; }
details.more[open] summary::before { transform: rotate(45deg); }
.more-body { display: flex; flex-wrap: wrap; gap: 16px 28px; padding: 4px 0 16px; }
.toggles { display: flex; flex-wrap: wrap; gap: 10px 22px; }
.switch { display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-weight: 700; background: none; border: 0; padding: 0; color: inherit; position: relative; }
.track { width: 46px; height: 26px; border-radius: 999px; background: color-mix(in srgb, var(--line) 50%, transparent); position: relative; transition: background-color 0.2s; flex: none; }
.track::after { content: ''; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.3); transition: transform 0.25s cubic-bezier(.3, 1.6, .5, 1); }
.switch-pro .switch-text { opacity: 0.85; }
.switch-pro:hover .track::after { transform: translateX(6px); }
.pro-tag, .upsell-btn i { font-style: normal; font-size: 0.68rem; font-weight: 800; letter-spacing: 0.06em; background: var(--court-2); color: #fff; padding: 2px 7px; border-radius: 6px; }
.form-error { margin: 0; font-weight: 700; color: var(--bad-ink); background: var(--bad-bg); padding: 10px 14px; border-radius: 12px; }
.report { overflow-wrap: anywhere; font-size: 0.92rem; background: var(--surface-2); border-radius: 14px; padding: 12px 14px; border: 2px solid color-mix(in srgb, var(--line) 18%, transparent); }
.report.warn { background: var(--warn-bg); color: var(--warn-ink); border-color: color-mix(in srgb, var(--warn-ink) 40%, transparent); }
.report p { margin: 0 0 6px; }
.report p:last-child { margin: 0; }
.fine-row { display: flex; flex-wrap: wrap; gap: 6px 14px; justify-content: space-between; align-items: center; }

/* ---------- Preview: the live classroom ---------- */
.preview { padding: 34px 6px 0; max-width: 620px; width: 100%; justify-self: center; }
.sticker { position: absolute; z-index: 5; font-weight: 800; padding: 6px 14px; border-radius: 12px; border: var(--bw) solid var(--deep); box-shadow: 3px 3px 0 var(--deep); font-size: 0.95rem; white-space: nowrap; pointer-events: none; }
.sticker-top { top: 6px; right: -6px; background: var(--sun); color: var(--deep); transform: rotate(5deg); animation: bob 3s ease-in-out infinite; }
@keyframes bob { 0%, 100% { translate: 0 0; } 50% { translate: 0 -6px; } }
.meter { position: absolute; z-index: 5; left: -4px; top: 10px; background: var(--deep); color: #fff; font-weight: 800; padding: 5px 12px; border-radius: 12px; border: var(--bw) solid var(--deep); box-shadow: 3px 3px 0 var(--coral); transform: rotate(-4deg); font-size: 0.95rem; }
.meter b { color: var(--sun); font-size: 1.1em; }
.board-frame, .big-chart-frame {
  position: relative; color: #f1fff8; border: var(--bw) solid var(--deep); border-radius: 26px; box-shadow: 8px 8px 0 var(--coral); padding: 16px clamp(10px, 2vw, 18px) 14px;
  background: radial-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1.6px) 0 0 / 14px 14px, var(--chalk);
}
:root[data-theme='dark'] .board-frame, :root[data-theme='dark'] .big-chart-frame { box-shadow: 8px 8px 0 var(--sun); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .board-frame, :root:not([data-theme='light']) .big-chart-frame { box-shadow: 8px 8px 0 var(--sun); } }
.board-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 12px; flex-wrap: wrap; }
.board-bar .btn-ghost, .seat-actions .btn-ghost, .btn-on-dark { background: #1b3f34; color: #fff; border-color: #f1fff8; box-shadow: 3px 3px 0 #f1fff8; }
.board-bar .btn-pop, .seat-actions .btn-pop { box-shadow: 3px 3px 0 #f1fff8; border-color: #f1fff8; }
.board-bar .btn-ghost[aria-pressed='true'] { background: var(--sun); color: var(--deep); }

.room { display: grid; gap: 12px; }
.room-front { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 4px 8px; min-height: 42px; background: #0d2a21; border: 2px dashed rgba(241, 255, 248, 0.55); border-radius: 12px; padding: 6px 10px; }
.front-label { grid-column: 2; grid-row: 1; font-weight: 800; text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.78rem; color: #ffe066; text-align: center; overflow-wrap: anywhere; }
.t-desk { background: #e9bd84; color: var(--deep); font-weight: 800; font-size: 0.75rem; padding: 4px 10px; border-radius: 8px; border: 2px solid var(--deep); white-space: nowrap; grid-row: 1; }
.t-desk-left { grid-column: 1; justify-self: start; }
.t-desk-right { grid-column: 3; justify-self: end; }
.t-desk-center { grid-column: 2; grid-row: 2; justify-self: center; }
.room-scroll { overflow-x: auto; padding: 10px 6px 8px; margin: -6px -4px; }
.room-scroll:focus-visible { outline-offset: 2px; }

.seat {
  appearance: none; font: inherit; position: relative; display: grid; place-items: center; min-height: 50px; min-width: 0; padding: 6px 5px;
  background: #fffdf6; color: var(--deep); border: 2px solid var(--deep); border-radius: 10px; box-shadow: 2px 3px 0 rgba(0, 0, 0, 0.35);
  font-weight: 800; font-size: 0.9rem; line-height: 1.1; text-align: center; cursor: grab; touch-action: manipulation;
  user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; transition: transform 0.15s, box-shadow 0.15s;
}
button.seat:hover { transform: translateY(-2px) rotate(-1deg); }
.seat:focus-visible { outline: 3px solid var(--sun); outline-offset: 3px; }
/* Pastel tables (one is yellow): a plum ring shows on all of them. */
.table .seat:focus-visible:not(.seat-sel) { outline-color: #6d1265; }
.seat-name { display: inline-block; max-width: 100%; overflow-wrap: anywhere; }
.seat-empty { background: rgba(255, 255, 255, 0.04); border-style: dashed; border-color: rgba(241, 255, 248, 0.6); color: #c4dcd2; box-shadow: none; cursor: pointer; }
.seat-open { font-size: 0.7rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; }
.seat-front::before { content: ''; position: absolute; top: -2px; left: 10px; right: 10px; height: 5px; border-radius: 0 0 5px 5px; background: var(--sun); }
.seat-locked { background: #fff1b8; cursor: pointer; }
.seat-lock, .seat-warn { position: absolute; top: -10px; width: 22px; height: 22px; display: grid; place-items: center; border-radius: 999px; border: 2px solid var(--deep); font-size: 0.72rem; line-height: 1; }
.seat-lock { right: -8px; background: var(--sun); }
.seat-warn { left: -8px; background: #c8150b; color: #fff; font-weight: 800; font-size: 0.85rem; }
.seat-bad { border-color: #c8150b; box-shadow: 0 0 0 3px #ff8a80; }
.seat-sel { outline: 4px solid var(--coral); outline-offset: 2px; transform: translateY(-3px) scale(1.05); z-index: 2; }
.seat-sel:focus-visible { outline: 4px solid var(--coral); }
.table .seat-sel, .table .seat-sel:focus-visible { outline-color: var(--deep); }
.seat-target { outline: 4px dashed var(--sun); outline-offset: 2px; }
.seat-dragging { opacity: 0.4; }
.drag-ghost { position: fixed; left: 0; top: 0; z-index: 100; pointer-events: none; background: var(--sun); color: var(--deep); font-weight: 800; padding: 8px 14px; border-radius: 10px; border: 3px solid var(--deep); box-shadow: 5px 5px 0 var(--deep); white-space: nowrap; }
html.is-dragging, html.is-dragging * { cursor: grabbing !important; }

/* Rows and pairs */
.rrows { display: grid; gap: 10px; }
.rrow { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(64px, 1fr); gap: 8px; }
.rrow-pairs { grid-auto-columns: minmax(124px, 1fr); gap: 20px; }
.pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.pair .seat:first-child { border-radius: 10px 0 0 10px; }
.pair .seat:last-child { border-radius: 0 10px 10px 0; border-left-width: 1px; }
/* Groups: tables with their own tint */
.tables { display: grid; gap: 14px; }
.trow { --tmin: 128px; display: grid; grid-template-columns: repeat(var(--tn, 3), minmax(var(--tmin), 1fr)); gap: 14px; }
.table { --tc: #ffd6f4; position: relative; background: var(--tc); border: 2px solid var(--deep); border-radius: 16px; padding: 22px 8px 8px; box-shadow: 3px 4px 0 rgba(0, 0, 0, 0.35); }
.tc-0 { --tc: #ffc4ee; } .tc-1 { --tc: #c6ecff; } .tc-2 { --tc: #dff7b5; } .tc-3 { --tc: #ffe9a3; } .tc-4 { --tc: #ded3ff; } .tc-5 { --tc: #ffd4b8; }
.table-lbl { position: absolute; top: 3px; left: 10px; font-size: 0.68rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; color: var(--deep); }
.table-seats { display: grid; gap: 6px; }
.tsc-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.tsc-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
 /* Three-seat-wide tables: two across in the hero preview, which is narrower than the results chart. */
#chart .tables-w3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
#chart .tables-w3 .trow { display: contents; }
.table .seat { min-height: 44px; box-shadow: 1px 2px 0 rgba(0, 0, 0, 0.3); }
.table .seat-empty { background: rgba(255, 255, 255, 0.45); border-color: rgba(16, 35, 29, 0.45); color: #3c4a44; }
/* U-shape on a grid */
.ushape { --umin: 0px; --arm: 62px; display: grid; grid-template-columns: minmax(var(--arm), 1.3fr) repeat(var(--ub, 8), minmax(var(--umin), 1fr)) minmax(var(--arm), 1.3fr); grid-template-rows: repeat(var(--ur, 9), auto); gap: 6px; }
.room-ushape .seat { font-size: 0.78rem; padding: 4px 2px; min-height: 44px; }
.room-ushape .seat-open { font-size: 0.58rem; letter-spacing: 0; }
.chart-big .room-ushape .seat { font-size: 0.95rem; min-height: 54px; }
.u-floor { grid-column: 2 / -2; border: 2px dashed rgba(241, 255, 248, 0.22); border-radius: 18px; margin: 6px; }
.view-student .u-floor { grid-row: 1 / -2; }
.view-teacher .u-floor { grid-row: 2 / -1; }
.gx-1 { grid-column: 1; } .gx-2 { grid-column: 2; } .gx-3 { grid-column: 3; } .gx-4 { grid-column: 4; } .gx-5 { grid-column: 5; } .gx-6 { grid-column: 6; } .gx-7 { grid-column: 7; } .gx-8 { grid-column: 8; } .gx-9 { grid-column: 9; } .gx-10 { grid-column: 10; } .gx-11 { grid-column: 11; } .gx-12 { grid-column: 12; } .gx-13 { grid-column: 13; } .gx-14 { grid-column: 14; } .gx-15 { grid-column: 15; } .gx-16 { grid-column: 16; }
.gy-1 { grid-row: 1; } .gy-2 { grid-row: 2; } .gy-3 { grid-row: 3; } .gy-4 { grid-row: 4; } .gy-5 { grid-row: 5; } .gy-6 { grid-row: 6; } .gy-7 { grid-row: 7; } .gy-8 { grid-row: 8; } .gy-9 { grid-row: 9; } .gy-10 { grid-row: 10; } .gy-11 { grid-row: 11; } .gy-12 { grid-row: 12; } .gy-13 { grid-row: 13; } .gy-14 { grid-row: 14; }
.ucols-3 { --ub: 1; } .ucols-4 { --ub: 2; } .ucols-5 { --ub: 3; } .ucols-6 { --ub: 4; } .ucols-7 { --ub: 5; } .ucols-8 { --ub: 6; } .ucols-9 { --ub: 7; } .ucols-10 { --ub: 8; } .ucols-11 { --ub: 9; } .ucols-12 { --ub: 10; } .ucols-13 { --ub: 11; } .ucols-14 { --ub: 12; } .ucols-15 { --ub: 13; } .ucols-16 { --ub: 14; }
.urows-2 { --ur: 2; } .urows-3 { --ur: 3; } .urows-4 { --ur: 4; } .urows-5 { --ur: 5; } .urows-6 { --ur: 6; } .urows-7 { --ur: 7; } .urows-8 { --ur: 8; } .urows-9 { --ur: 9; } .urows-10 { --ur: 10; } .urows-11 { --ur: 11; } .urows-12 { --ur: 12; } .urows-13 { --ur: 13; } .urows-14 { --ur: 14; }
.tcols-1 { --tn: 1; } .tcols-2 { --tn: 2; } .tcols-3 { --tn: 3; } .tcols-4 { --tn: 4; }
/* Bigger rooms: smaller desks */
.room-m .seat { font-size: 0.84rem; min-height: 46px; }
.room-s .seat { font-size: 0.78rem; min-height: 42px; padding-inline: 3px; }
.room-s .rrow { grid-auto-columns: minmax(58px, 1fr); gap: 6px; }
.room-s .rrow-pairs { grid-auto-columns: minmax(116px, 1fr); gap: 14px; } /* two seats per column: keep each 44 px+ */
.room-empty { margin: 0; padding: 30px 10px; text-align: center; font-weight: 700; color: #ffd9d4; }
.chart.deal .seat-taken { animation: pop 0.45s cubic-bezier(.3, 1.8, .5, 1) both; }
.chart.deal .table:nth-child(2) .seat-taken, .chart.deal .rrow:nth-child(2) .seat-taken { animation-delay: 0.04s; }
.chart.deal .table:nth-child(3) .seat-taken, .chart.deal .rrow:nth-child(3) .seat-taken { animation-delay: 0.08s; }
@keyframes pop { from { transform: scale(0.6); } }
.seat-actions { margin-top: 12px; background: #0d2a21; border: 2px solid rgba(241, 255, 248, 0.5); border-radius: 14px; padding: 10px 12px; display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; justify-content: space-between; animation: rise 0.25s ease both; }
.sa-text { margin: 0; font-weight: 650; overflow-wrap: anywhere; }
.sa-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.fair-line { margin: 16px 0 0; font-weight: 750; font-size: 0.98rem; display: flex; gap: 8px; align-items: flex-start; background: var(--surface); color: var(--ink); border: var(--bw) solid var(--line); border-radius: 14px; padding: 9px 14px; box-shadow: 4px 4px 0 var(--shadow); }
.pin { flex: none; width: 10px; height: 10px; margin-top: 7px; border-radius: 50%; background: var(--coral); animation: ping 1.6s infinite; }
.fit-row { margin: -6px 0 0; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 14px; }
.names-sm { min-height: 84px; }
.more-rules { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.more-rules .hint { grid-column: 1 / -1; margin: 0; }
@media (max-width: 480px) { .more-rules { grid-template-columns: minmax(0, 1fr); } }
.mode-ico svg { width: 22px; height: 22px; fill: #fff; }

/* ---------- Marquee ---------- */
.marquee { background: var(--deep); color: #f1fff8; border-block: var(--bw) solid var(--deep); overflow: hidden; padding: 14px 0; }
.marquee-track { display: flex; width: max-content; animation: scroll 40s linear infinite; }
.marquee:hover .marquee-track, .marquee:focus-within .marquee-track { animation-play-state: paused; }
.marquee a, .marquee-dup { display: inline-flex; }
.marquee a { padding: 0 22px; font-weight: 750; font-size: 1.1rem; text-decoration: none; white-space: nowrap; gap: 8px; }
.marquee a:hover { color: var(--ball); }
.marquee a:focus-visible { outline-offset: -3px; }
.marquee a + a::before, .marquee-dup a::before { content: '●'; color: var(--ball); margin-right: 22px; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- Results ---------- */
.results { background: var(--bg-alt); padding: clamp(36px, 5vw, 64px) 0; border-bottom: var(--bw) solid var(--line); scroll-margin-top: 70px; }
.results-title { font-size: clamp(2.3rem, 6vw, 4.2rem); letter-spacing: -0.04em; outline: none; }
.results-title span { display: inline-block; background: var(--mark-bg); color: var(--mark-ink); padding: 0 0.15em; border-radius: 0.3em; transform: rotate(-2deg); animation: countpop 0.5s cubic-bezier(.3, 1.8, .5, 1); }
@keyframes countpop { from { transform: scale(0.4) rotate(-10deg); } }
.results-sub { color: var(--ink-soft); font-weight: 650; }
.toolbar { display: flex; flex-wrap: wrap; gap: 12px 14px; align-items: center; margin: 8px 0 24px; }
.btn-print { font-size: 1.1rem; }
@media (max-width: 700px) { .btn-print { width: 100%; } .toolbar .btn { white-space: normal; } }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.tab { border: var(--bw) solid var(--line); background: var(--surface); color: var(--ink); font-weight: 800; padding: 0.5em 1.1em; border-radius: 999px; cursor: pointer; min-height: 44px; transition: transform 0.15s; }
.tab:hover { transform: translateY(-2px); }
.tab[aria-selected='true'] { background: var(--deep); color: var(--ball); box-shadow: 3px 3px 0 var(--coral); }
:root[data-theme='dark'] .tab[aria-selected='true'] { background: var(--ball); color: var(--deep); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .tab[aria-selected='true'] { background: var(--ball); color: var(--deep); } }
.tab-panel { animation: rise 0.35s ease both; }

.share-box { padding: 16px 18px; margin: -8px 0 22px; display: grid; gap: 10px; max-width: 680px; box-shadow: 6px 6px 0 var(--coral); }
.share-box .btn { justify-self: start; }
.share-lede { margin: 0; }
.big-chart-frame { padding: 18px clamp(10px, 2vw, 22px); }
.chart-big .seat { min-height: 60px; font-size: 1rem; }
.chart-big .room-s .seat { min-height: 50px; font-size: 0.9rem; }
.drag-hint { margin: 14px 0 0; }
.seat-list { list-style: none; margin: 0; padding: 0; columns: 3 230px; column-gap: 28px; background: var(--surface); border: var(--bw) solid var(--line); border-radius: 18px; padding: 14px 18px; box-shadow: 6px 6px 0 var(--coral); }
.seat-list li { break-inside: avoid; display: flex; justify-content: space-between; gap: 12px; padding: 7px 0; border-bottom: 2px dashed color-mix(in srgb, var(--line) 14%, transparent); }
.seat-list b { overflow-wrap: anywhere; min-width: 0; }
.seat-list span { color: var(--ink-soft); font-weight: 650; text-align: right; flex: none; }
.seat-none { margin-top: 14px; font-weight: 650; }
.forget-row { margin: 20px 0 0; }

/* The printed page (only ever shown when printing). */
.sheet { background: #fff; color: #10231d; }
.sheet-head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 4px 18px; border-bottom: 4px solid #10231d; padding-bottom: 8px; margin-bottom: 14px; }
.sheet-title { font-size: 1.8rem; margin: 0; overflow-wrap: anywhere; }
.sheet-meta { margin: 0; font-weight: 700; color: #45505a; }
.sheet-foot { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px 18px; margin: 14px 0 0; font-size: 0.82rem; color: #45505a; font-weight: 600; }

/* ---------- Sections ---------- */
section.how, section.features, section.themes, section.pricing, section.faq, section.related, .guide { padding: clamp(48px, 7vw, 96px) 0; }
.section-title { font-size: clamp(2rem, 4.6vw, 3.4rem); letter-spacing: -0.035em; }
.section-title-sm { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-top: 1.2em; }
.section-lede { font-size: 1.15rem; color: var(--ink-soft); max-width: 62ch; }
.steps { list-style: none; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step-card { background: var(--surface); border: var(--bw) solid var(--line); border-radius: var(--r); padding: 26px; box-shadow: 6px 6px 0 var(--c); transition: transform 0.2s; }
.step-card:hover { transform: translateY(-4px) rotate(-0.6deg); }
.step-n { display: grid; place-items: center; width: 54px; height: 54px; border-radius: 50%; background: var(--c); color: var(--deep); font-weight: 800; font-size: 1.6rem; border: var(--bw) solid var(--deep); margin-bottom: 14px; }
.step-card h3 { font-size: 1.5rem; }
.step-card p { margin: 0; color: var(--ink-soft); }
.features { background: var(--bg-alt); border-block: var(--bw) solid var(--line); }
.feat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; margin-top: 26px; }
.feat { background: var(--surface); border: var(--bw) solid var(--line); border-radius: var(--r); padding: 22px; box-shadow: 6px 6px 0 var(--c, var(--shadow)); transition: transform 0.2s; }
.feat:hover { transform: translateY(-4px); }
.feat-wide { grid-column: span 2; grid-row: span 2; display: flex; flex-direction: column; justify-content: flex-end; }
.feat h3 { font-size: 1.35rem; }
.feat p { margin: 0; color: var(--ink-soft); }
.feat-wide h3 { font-size: 2rem; }
.feat-wide p { font-size: 1.1rem; }
@media (max-width: 960px) { .feat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .feat-grid { grid-template-columns: minmax(0, 1fr); } .feat-wide { grid-column: auto; grid-row: auto; } .feat-wide h3 { font-size: 1.6rem; } }
.feat-demo { height: 90px; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.demo-swap { font-size: 1.6rem; font-weight: 800; }
.demo-swap span { display: grid; place-items: center; width: 52px; height: 52px; border-radius: 50%; border: var(--bw) solid var(--line); background: var(--sky); color: var(--deep); animation: orbit 3s ease-in-out infinite; }
.demo-swap span + span { background: var(--ball); animation-direction: reverse; }
.demo-swap b { font-size: 1.8rem; }
@keyframes orbit { 0%, 30%, 100% { transform: none; } 50%, 80% { transform: translateX(62px); } }
.demo-swap span + span { animation-name: orbitb; }
@keyframes orbitb { 0%, 30%, 100% { transform: none; } 50%, 80% { transform: translateX(-62px); } }
.demo-link { font-size: 3rem; animation: wiggle 2.6s infinite; }
/* A tiny room: the two red names drift apart. */
.demo-room { height: auto; flex: 1; min-height: 190px; flex-direction: column; justify-content: center; gap: 12px; padding: 14px; background: var(--chalk); border: var(--bw) solid var(--deep); border-radius: 16px; box-shadow: 5px 5px 0 var(--deep); }
.dr-board { align-self: stretch; text-align: center; font-weight: 800; font-size: 0.72rem; letter-spacing: 0.12em; text-transform: uppercase; color: #ffe066; border: 2px dashed rgba(241, 255, 248, 0.55); border-radius: 10px; padding: 6px; }
.dr-desks { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; width: 100%; max-width: 360px; }
.dr-desks i { font-style: normal; display: grid; place-items: center; min-height: 44px; background: #fffdf6; color: var(--deep); font-weight: 800; border: 2px solid var(--deep); border-radius: 10px; box-shadow: 2px 3px 0 rgba(0, 0, 0, 0.35); }
.dr-desks i.dr-x { border-color: #c8150b; box-shadow: 0 0 0 3px #ff8a80; animation: apart 3.6s ease-in-out infinite; }
.dr-desks i.dr-x + i { animation: apart-b 3.6s ease-in-out infinite; }
@keyframes apart { 0%, 25%, 100% { transform: none; } 45%, 80% { transform: translateY(54px); } }
@keyframes apart-b { 0%, 25%, 100% { transform: none; } 45%, 80% { transform: translateY(-54px); } }
.demo-flip span { font-size: 3rem; display: inline-block; animation: flip 3.2s ease-in-out infinite; }
@keyframes flip { 0%, 30% { transform: rotate(0); } 50%, 80% { transform: rotate(180deg); } 100% { transform: rotate(360deg); } }
.demo-lock { font-size: 3rem; animation: bob 2.4s ease-in-out infinite; }
.demo-link { font-size: 3rem; animation: wiggle 2.6s infinite; }



.tiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 16px; margin-top: 24px; }
.tiles-3 { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
@media (max-width: 400px) { .tiles, .tiles-3 { grid-template-columns: minmax(0, 1fr); } }
.tile { display: grid; grid-template-columns: auto 1fr; grid-template-rows: auto auto; column-gap: 12px; align-items: center; text-decoration: none; background: var(--surface); border: var(--bw) solid var(--line); border-radius: 18px; padding: 16px 18px; box-shadow: 5px 5px 0 var(--c); transition: transform 0.16s, box-shadow 0.16s; }
.tile:hover { transform: translate(-3px, -3px) rotate(-0.8deg); box-shadow: 8px 8px 0 var(--c); }
.tile-emoji { grid-row: span 2; font-size: 2rem; width: 54px; height: 54px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in srgb, var(--c) 35%, transparent); transition: transform 0.3s cubic-bezier(.3, 1.8, .5, 1); }
.tile:hover .tile-emoji { transform: scale(1.15) rotate(-8deg); }
.tile-name { font-weight: 800; font-size: 1.12rem; line-height: 1.15; }
.tile-meta { font-size: 0.85rem; color: var(--ink-soft); }

.pro { background: var(--band); color: var(--band-ink); padding: clamp(48px, 7vw, 96px) 0; border-block: var(--bw) solid var(--line); position: relative; overflow: hidden; }
.pro::before { content: 'PRO PRO PRO PRO PRO PRO'; position: absolute; right: -40px; top: 10px; font-weight: 800; font-size: 9rem; opacity: 0.08; white-space: nowrap; letter-spacing: -0.04em; pointer-events: none; }
.tag { display: inline-block; font-weight: 800; font-size: 0.85rem; padding: 5px 12px; border-radius: 999px; border: 2px solid var(--deep); margin-bottom: 14px; }
.tag-lime { background: var(--ball); color: var(--deep); }
.tag-ink { background: var(--deep); color: #f1fff8; }
.pro-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 24px; }
@media (max-width: 900px) { .pro-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .pro-grid { grid-template-columns: 1fr; } }
.pro-card { background: #fff; color: var(--deep); border: var(--bw) solid var(--deep); border-radius: 18px; padding: 20px; box-shadow: 5px 5px 0 var(--deep); display: flex; flex-direction: column; align-items: flex-start; transition: transform 0.18s; }
.pro-card:hover { transform: translateY(-4px) rotate(0.5deg); }
.pro-card h3 { font-size: 1.3rem; margin-top: 8px; }
.pro-card p { color: #45505a; flex: 1; }
.pro-emoji { font-size: 2rem; }
.pro-lede { font-size: 1.1rem; max-width: 62ch; opacity: 0.95; }
.planned-tag { display: inline-block; margin-top: 6px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; background: var(--sun); color: var(--deep); border: 2px solid var(--deep); padding: 1px 8px; border-radius: 6px; }

.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin: 34px 0 18px; align-items: start; }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; } }
.plan { background: var(--surface); border: var(--bw) solid var(--line); border-radius: var(--r); padding: 26px; box-shadow: 6px 6px 0 var(--shadow); position: relative; }
.plan h3 { font-size: 1.2rem; }
.plan .price { font-size: 2.6rem; font-weight: 800; letter-spacing: -0.03em; margin: 0 0 6px; }
.plan ul { padding: 0; list-style: none; margin: 14px 0 22px; display: grid; gap: 8px; }
.plan li { padding-left: 28px; position: relative; }
.plan li::before { content: '✓'; position: absolute; left: 0; top: 0; width: 20px; height: 20px; border-radius: 50%; background: var(--ball); color: var(--deep); font-weight: 800; font-size: 0.75rem; display: grid; place-items: center; margin-top: 3px; }
.plan-hot { border-color: var(--court); box-shadow: 8px 8px 0 var(--court); transform: translateY(-10px); }
.plan-flag { position: absolute; top: -16px; right: 20px; background: var(--pop-btn); color: var(--pop-ink); font-weight: 800; padding: 4px 12px; border-radius: 999px; border: 2px solid var(--deep); transform: rotate(4deg); }
.plan-note { background: var(--ball); color: var(--deep); border-radius: 10px; padding: 6px 10px; font-size: 0.92rem; font-weight: 600; }

.faq details { background: var(--surface); border: var(--bw) solid var(--line); border-radius: 16px; margin-bottom: 12px; box-shadow: 4px 4px 0 var(--shadow); }
.faq summary { cursor: pointer; padding: 16px 20px; font-weight: 800; font-size: 1.1rem; list-style: none; display: flex; justify-content: space-between; gap: 12px; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 1.5rem; line-height: 1; color: var(--coral); transition: transform 0.2s; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 20px 16px; margin: 0; color: var(--ink-soft); }

/* ---------- Landing pages ---------- */
.guide-grid { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
@media (max-width: 900px) { .guide-grid { grid-template-columns: 1fr; } }
.guide-intro { font-size: 1.18rem; line-height: 1.6; }
.guide-steps { counter-reset: s; list-style: none; padding: 0; display: grid; gap: 12px; margin: 22px 0 10px; }
.guide-steps li { counter-increment: s; position: relative; padding: 14px 16px 14px 62px; background: var(--surface); border: var(--bw) solid var(--line); border-radius: 16px; box-shadow: 4px 4px 0 var(--shadow); }
.guide-steps li::before { content: counter(s); position: absolute; left: 14px; top: 12px; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--ball); color: var(--deep); border: 2px solid var(--deep); font-weight: 800; }
.guide-steps li:nth-child(2)::before { background: var(--sky); } .guide-steps li:nth-child(3)::before { background: var(--coral); } .guide-steps li:nth-child(4)::before { background: var(--sun); }
.guide-tips { padding-left: 0; list-style: none; display: grid; gap: 10px; }
.guide-tips li { padding-left: 34px; position: relative; }
.guide-tips li::before { content: '●'; position: absolute; left: 6px; top: 0; color: var(--coral); font-size: 1rem; }
.guide-side { position: sticky; top: 90px; display: grid; gap: 24px; }
@media (max-width: 900px) { .guide-side { position: static; } }
.facts-panel { padding: 22px; }
.words-title { font-size: 1.3rem; }
.facts { margin: 0 0 12px; display: grid; gap: 0; }
.facts div { display: flex; justify-content: space-between; gap: 12px; padding: 8px 0; border-bottom: 2px dashed color-mix(in srgb, var(--line) 18%, transparent); }
.facts dt { font-weight: 700; color: var(--ink-soft); }
.facts dd { margin: 0; font-weight: 800; font-variant-numeric: tabular-nums; }
.facts-panel .fine { margin-bottom: 14px; }
.sister-panel { background: var(--deep); color: #f1fff8; border: var(--bw) solid var(--deep); border-radius: var(--r); padding: 22px; box-shadow: 6px 6px 0 var(--coral); }
.sister-panel p { color: #cfe3da; }
.sister-panel .btn-ink { background: var(--mint); color: var(--deep); border-color: #f1fff8; box-shadow: 4px 4px 0 #f1fff8; }
.sister-btns { display: flex; flex-wrap: wrap; gap: 12px 14px; }
.sister-panel .chips { margin-top: 16px; }
.sister-panel .chip { background: transparent; color: #f1fff8; border-color: rgba(238, 242, 255, 0.4); }
.sister-panel .chip:hover { border-color: var(--mint); }
.sister-panel-wide { margin-top: 40px; }
.sister-kicker { font-weight: 800; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ball) !important; margin-bottom: 6px; }
.sister-title { font-size: 1.6rem; }
.related { background: var(--bg-alt); border-top: var(--bw) solid var(--line); }
.related-more { margin-top: 22px; font-weight: 700; }
.prose { padding-block: 48px 72px; font-size: 1.08rem; }
.prose h1 { font-size: 3rem; } .prose h2 { font-size: 1.5rem; margin-top: 1.4em; }
.success-box { padding: 22px; margin: 18px 0; }
.license-key { font-size: 1.05rem; word-break: break-all; }
.hero-hub { padding-bottom: 56px; }
.nf-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 14px 18px; margin-top: 26px; }
.nf-hero .hero-title { max-width: 16ch; }

/* ---------- Footer ---------- */
.site-footer { background: var(--deep); color: #f1fff8; padding: 48px 0 40px; }
.footer-top { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; margin-bottom: 22px; }
.footer-top p { margin: 0; opacity: 0.9; }
.footer-themes { display: flex; flex-wrap: wrap; gap: 8px 18px; font-weight: 600; font-size: 0.95rem; margin-bottom: 22px; }
.footer-themes a { opacity: 0.9; text-decoration: none; }
.footer-themes a:hover { opacity: 1; color: var(--ball); }
.site-footer .fine { color: #c4dcd2; }

/* ---------- Dialogs ---------- */
.dlg { border: var(--bw) solid var(--line); border-radius: 26px; background: var(--surface); color: var(--ink); padding: 0; box-shadow: 10px 10px 0 var(--coral); max-width: min(96vw, 560px); width: 100%; max-height: 94vh; }
.dlg[open] { animation: dlgin 0.35s cubic-bezier(.3, 1.5, .5, 1); }
@keyframes dlgin { from { transform: translateY(30px) scale(0.94); opacity: 0; } }
.dlg::backdrop { background: rgba(16, 35, 29, 0.6); backdrop-filter: blur(6px); }
.dlg-waitlist form { padding: 26px; display: grid; gap: 10px; }
.dlg-waitlist h2 { font-size: 2rem; margin: 0; }
.dlg-waitlist .tag { justify-self: start; margin: 0; }
.wl-feature { margin: 0; font-weight: 700; color: var(--court-2); }
:root[data-theme='dark'] .wl-feature { color: var(--ball); }
@media (prefers-color-scheme: dark) { :root:not([data-theme='light']) .wl-feature { color: var(--ball); } }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: 0.95rem; }
.consent input { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--court); flex: none; }
.consent input[aria-invalid='true'] { outline: 3px solid var(--bad-ink); outline-offset: 2px; }
.actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 6px; flex-wrap: wrap; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { min-height: 1.4em; margin: 8px 0 0; font-weight: 600; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); z-index: 90; background: var(--deep); color: #f1fff8; font-weight: 750; padding: 12px 20px; border-radius: 999px; border: 2px solid #f1fff8; box-shadow: 4px 4px 0 var(--coral); animation: dlgin 0.3s; max-width: calc(100vw - 32px); text-align: center; }

/* ---------- Small screens ---------- */
@media (max-width: 560px) {
  .preview { padding-inline: 2px; padding-top: 46px; }
  .sticker { font-size: 0.8rem; }
  .sticker-top { right: -2px; top: 4px; }
  .meter { font-size: 0.82rem; left: -2px; top: 6px; }
  .seat { font-size: 0.8rem; min-height: 46px; }
  .trow { --tmin: 0px; gap: 10px; }
  /* Phones: tables flow two across (front-row seats keep their yellow mark). */
  .tables:has(.tcols-3), .tables:has(.tcols-4) { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .trow.tcols-3, .trow.tcols-4 { display: contents; }
  .tables { gap: 8px; }
  .table { padding: 20px 5px 5px; }
  .table-seats { gap: 4px; }
  .rrow, .room-s .rrow { grid-auto-columns: minmax(44px, 1fr); gap: 5px; }
  .rrows { gap: 8px; }
  .room-s .seat, .room-m .seat { font-size: 0.74rem; padding-inline: 2px; }
  .rrow-pairs, .room-s .rrow-pairs { grid-auto-columns: minmax(90px, 1fr); gap: 10px; }
  .ushape { --umin: 44px; --arm: 52px; gap: 4px; }
  .seat-open { font-size: 0.6rem; letter-spacing: 0; }
  .t-desk { font-size: 0.68rem; padding: 3px 7px; }
  .seat-list { columns: 1; }
}
@media (max-width: 380px) {
  .seat { font-size: 0.76rem; padding-inline: 3px; }
  .seat-open { font-size: 0.62rem; letter-spacing: 0.02em; }
}

/* ---------- Touch screens: tap targets of at least 44 px, 16 px inputs (no iOS zoom) ---------- */
@media (pointer: coarse) {
  .btn-sm, .chip, .switch, .upsell-btn { min-height: 44px; }
  .linkish { min-height: 44px; display: inline-flex; align-items: center; }
  .theme-toggle { width: 44px; height: 44px; flex: none; }
  .brand { min-height: 44px; }
  nav a.nav-all { min-width: 44px; min-height: 44px; justify-content: center; }
  .crumbs a { display: inline-block; padding-block: 12px; }
  .crumbs { margin-block: -12px 2px; }
  .footer-themes { row-gap: 0; }
  .footer-themes a { display: inline-flex; align-items: center; min-height: 44px; }
  .marquee { padding-block: 4px; }
  .marquee a { padding-block: 10px; }
  .related-more a, .prose a, .site-footer .fine a { display: inline-flex; align-items: center; min-height: 44px; }
  .input-sm, .input { font-size: 16px; }
  .seat, .room-s .seat, .room-m .seat { min-height: 46px; }
  .step-in { font-size: 1.35rem; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-delay: 0s !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
  .marquee-track { animation: none; flex-wrap: wrap; width: auto; }
  .marquee-dup { display: none; }
}

/* ---------- Print: only the chosen view, black on white ---------- */
@page { margin: 0.45in; }
@page wide { size: landscape; margin: 0.4in; }
@media print {
  html, body { background: #fff !important; color: #000 !important; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; animation: none !important; transition: none !important; }
  html.printing body > :not(main), html.printing main > :not(.print-sheet) { display: none !important; }
  html.printing .print-sheet { display: block !important; }
  html.print-wide .print-sheet .sheet { page: wide; }
  .print-sheet .sheet-title { font-size: 20pt; }
  .print-sheet .room { gap: 10pt; }
  .print-sheet .room-front { background: #fff; border: 2px solid #000; }
  .print-sheet .front-label { color: #000; font-size: 11pt; }
  .print-sheet .room-scroll { overflow: visible; margin: 0; padding: 0; }
  .print-sheet .rrow { grid-auto-columns: minmax(0, 1fr); }
  .print-sheet .trow { --tmin: 0px; }
  .print-sheet .ushape { --umin: 0px; --arm: 0px; }
  .print-sheet .seat { background: #fff; color: #000; border-color: #000; box-shadow: none; transform: none; }
  .print-sheet .seat-empty { border-color: #888; color: #666; }
  .print-sheet .table { box-shadow: none; break-inside: avoid; }
  .print-sheet .seat-front::before { background: #000; }
  .print-sheet .u-floor { border-color: #bbb; }
  .ps-l .seat { font-size: 16pt; min-height: 0.85in; }
  .ps-m .seat { font-size: 13pt; min-height: 0.62in; }
  .ps-s .seat { font-size: 11pt; min-height: 0.5in; }
  .ps-l .table-lbl, .ps-m .table-lbl, .ps-s .table-lbl { font-size: 8pt; }
  .sheet-foot { font-size: 9pt; }
  /* Ctrl+P on the maker with no usable list: one line of help, not the whole landing page. */
  html.print-empty body > * { display: none !important; }
  html.print-empty body::before { content: 'Nothing to print yet. Paste your class list, press "Make my seating chart", then print.'; display: block; font: 600 14pt/1.4 var(--font); color: #000; }
  /* Pages without the maker (privacy, hub) print as plain black-on-white text. */
  .site-header, .marquee, .qw-strip, .site-footer, .hero-deco, .toast, dialog { box-shadow: none; }
  .hero, .pro, .features, .related, .results, .sister-panel, .panel, .tile, .plan, .faq details, .guide-steps li, .board-frame { background: #fff !important; color: #000 !important; box-shadow: none !important; }
}