/* Layout: an exercise-book page. Content sits right of a ruled margin; section labels live in the margin
   like a teacher's notes. Graph-paper grid only behind the hero and the demo. */
:root {
  --paper: #FFFFFF; --paper-2: #F3F5F9; --ink: #14213D; --ink-2: #33405C; --muted: #5A6580;
  --rule: #D9E0EC; --grid: #EAEFF7; --margin: #E7A3A8;
  --hop: #1F9D6B; --hop-ink: #0D6A46; --hop-soft: #E1F3EA; --sun: #F2B33D; --sun-soft: #FFEDBF; --alert: #C23B3B; --alert-soft: #FBE8E8; --hl: #F2B33D;
  --shadow: 0 1px 2px rgba(20,33,61,.06), 0 10px 30px rgba(20,33,61,.08);
  --font-display: "Bricolage Grotesque", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Atkinson Hyperlegible Next", "Atkinson Hyperlegible", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Atkinson Hyperlegible Mono", ui-monospace, Menlo, Consolas, monospace;
  --font-hand: "Caveat", "Segoe Print", "Bradley Hand", cursive;
  --step--1: .875rem; --step-0: 1.0625rem; --step-1: 1.25rem; --step-2: 1.6rem; --step-3: 2.15rem; --step-4: clamp(2.4rem, 5.5vw, 4.1rem);
  --max: 1160px; --radius: 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0E1626; --paper-2: #142036; --ink: #E9EDF5; --ink-2: #C5CDDC; --muted: #98A3B8;
    --rule: #26324B; --grid: #182439; --margin: #7C3C46;
    --hop: #3CC48C; --hop-ink: #84E2BA; --hop-soft: #143A2C; --sun: #F2B33D; --sun-soft: #3B3017; --alert: #F07A7A; --alert-soft: #3C1F26; --hl: rgba(242,179,61,.42);
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #0E1626; --paper-2: #142036; --ink: #E9EDF5; --ink-2: #C5CDDC; --muted: #98A3B8;
  --rule: #26324B; --grid: #182439; --margin: #7C3C46;
  --hop: #3CC48C; --hop-ink: #84E2BA; --hop-soft: #143A2C; --sun: #F2B33D; --sun-soft: #3B3017; --alert: #F07A7A; --alert-soft: #3C1F26; --hl: rgba(242,179,61,.42);
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35); color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { animation: none !important; transition: none !important; } }
body { margin: 0; background: var(--paper); color: var(--ink); font: 400 var(--step-0)/1.6 var(--font-body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--hop-ink); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--hop); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -.02em; text-wrap: balance; margin: 0; color: var(--ink); }
h1 { font-size: var(--step-4); font-weight: 800; }
h2 { font-size: var(--step-3); font-weight: 750; }
h3 { font-size: var(--step-1); font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
p + p { margin-top: .9em; }
code, kbd, .mono { font-family: var(--font-mono); font-size: .92em; }
kbd { border: 1px solid var(--rule); border-bottom-width: 2px; border-radius: 6px; padding: .05em .4em; background: var(--paper-2); }
.wrap { max-width: var(--max); margin: 0 auto; padding-inline: max(16px, 4vw); }
.muted { color: var(--muted); }
.lead { font-size: var(--step-1); color: var(--ink-2); max-width: 40em; }
.hl { background: linear-gradient(transparent 58%, var(--hl) 58%, var(--hl) 88%, transparent 88%); padding: 0 .08em; color: inherit; }
.hand { font-family: var(--font-hand); font-size: 1.45em; line-height: 1; color: var(--hop-ink); font-weight: 600; }
.eyebrow { font: 700 .78rem/1.2 var(--font-body); letter-spacing: .09em; text-transform: uppercase; color: var(--hop-ink); }
.sr-only { position: absolute; 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 12px; border-radius: 8px; z-index: 50; }
.skip:focus { left: 12px; }

/* header */
.site-head { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 30; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--rule); }
.site-head .wrap { display: flex; align-items: center; gap: 22px; min-height: 64px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font: 800 1.25rem/1 var(--font-display); color: var(--ink); text-decoration: none; letter-spacing: -.02em; }
.logo svg { width: 32px; height: 32px; flex: none; }
.nav { display: flex; gap: 4px; margin-left: auto; align-items: center; }
.nav a { color: var(--ink-2); text-decoration: none; padding: 8px 12px; border-radius: 9px; font-weight: 700; font-size: .95rem; }
.nav a:hover { background: var(--paper-2); color: var(--ink); }
.nav a[aria-current="page"] { color: var(--ink); background: var(--paper-2); }
.nav .btn { margin-left: 8px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--rule); border-radius: 10px; padding: 8px 12px; font: 700 .95rem var(--font-body); color: var(--ink); }
@media (max-width: 900px) {
  .menu-btn { display: inline-flex; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; background: var(--paper); border-bottom: 1px solid var(--rule); padding: 8px max(16px, 4vw) 16px; }
  .nav.open { display: flex; }
  .nav .btn { margin: 8px 0 0; }
}

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 9px; font: 700 1rem/1 var(--font-body); padding: 14px 20px; border-radius: 12px; border: 2px solid transparent; text-decoration: none; cursor: pointer; transition: transform .08s, background .15s, border-color .15s; white-space: nowrap; }
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--hop); color: #fff; }
.btn-primary:hover { background: var(--hop-ink); color: #fff; }
:root[data-theme="dark"] .btn-primary { color: #0E1626; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn-primary { color: #0E1626; } }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-ghost:hover { border-color: var(--ink-2); }
.btn-small { padding: 9px 14px; font-size: .93rem; border-radius: 10px; }
.btn svg { width: 20px; height: 20px; }

/* margin-note layout */
.section { padding-block: clamp(56px, 8vw, 104px); }
.section + .section { border-top: 1px solid var(--rule); }
.sheet { display: grid; grid-template-columns: 170px minmax(0, 1fr); column-gap: 44px; }
.sheet > .note { padding-top: .45em; text-align: right; }
.sheet > .note .eyebrow { display: block; }
.sheet > .note .hand { display: block; margin-top: 8px; transform: rotate(-3deg); }
.sheet > .body { border-left: 2px solid var(--margin); padding-left: 44px; min-width: 0; }
.sheet > .body > h2 + .lead, .sheet > .body > h2 + p { margin-top: 16px; }
@media (max-width: 820px) {
  .sheet { grid-template-columns: minmax(0, 1fr); row-gap: 10px; }
  .sheet > .note { text-align: left; padding-top: 0; }
  .sheet > .note .hand { display: none; }
  .sheet > .body { border-left: 0; padding-left: 0; }
}
.graph { background-color: var(--paper); background-image:
  linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 26px 26px; background-position: -1px -1px; }

/* tour section */
.tour-sec { padding-block: clamp(40px, 6vw, 72px); background: linear-gradient(180deg, var(--paper-2), var(--paper)); border-bottom: 1px solid var(--rule); }
.tour-sec .tour-head { text-align: center; max-width: 720px; margin: 0 auto 26px; }
.tour-sec .tour-head h2 { margin-top: 10px; }
.tour-sec .tour-head p { margin-top: 12px; color: var(--ink-2); }
.tour-sec .gh-tour { max-width: 1040px; margin: 0 auto; }
.tour-sec .t-cap b, .tour-sec .t-cap span { font-family: var(--font-body); }

/* hero */
.hero { padding-block: clamp(40px, 7vw, 88px) clamp(48px, 7vw, 96px); border-bottom: 1px solid var(--rule); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr); gap: clamp(28px, 4vw, 56px); align-items: center; }
.hero h1 { margin-top: 14px; }
.hero .lead { margin-top: 20px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.trust { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 26px; padding: 0; list-style: none; color: var(--ink-2); font-weight: 700; font-size: .95rem; }
.trust li { display: inline-flex; align-items: center; gap: 7px; }
.trust svg { width: 18px; height: 18px; color: var(--hop); flex: none; }
.frame { border-radius: 14px; overflow: hidden; border: 1px solid var(--rule); box-shadow: var(--shadow); background: var(--paper-2); }
.frame-bar { display: flex; align-items: center; gap: 6px; padding: 9px 12px; border-bottom: 1px solid var(--rule); background: var(--paper-2); }
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--rule); }
.hero-shot { position: relative; }
.hero-shot .tag { position: absolute; left: -14px; bottom: 26px; background: var(--paper); border: 1px solid var(--rule); border-radius: 12px; padding: 10px 14px; box-shadow: var(--shadow); font-weight: 700; font-size: .95rem; display: flex; gap: 10px; align-items: center; max-width: 80%; }
.hero-shot .tag b { font-family: var(--font-mono); font-size: 1.3rem; color: var(--hop-ink); }
@media (max-width: 900px) { .hero-grid { grid-template-columns: minmax(0, 1fr); } .hero-shot .tag { left: 10px; } }

/* steps */
.steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin-top: 36px; counter-reset: step; }
.step { counter-increment: step; }
.step .frame { margin-top: 16px; }
.step h3 { display: flex; align-items: baseline; gap: 10px; }
.step h3::before { content: counter(step); font: 800 1rem/1 var(--font-mono); color: var(--paper); background: var(--ink); width: 28px; height: 28px; border-radius: 50%; display: inline-grid; place-items: center; flex: none; transform: translateY(-2px); }
.step p { margin-top: 8px; color: var(--ink-2); }
@media (max-width: 900px) { .steps { grid-template-columns: minmax(0, 1fr); } }

/* features */
.features { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin-top: 34px; border-top: 1px solid var(--rule); }
.feature { padding: 22px 26px 24px 0; border-bottom: 1px solid var(--rule); display: grid; grid-template-columns: 40px minmax(0, 1fr); gap: 14px; }
.feature:nth-child(odd) { padding-right: 34px; border-right: 1px solid var(--rule); }
.feature:nth-child(even) { padding-left: 30px; }
.feature .ic { width: 40px; height: 40px; border-radius: 11px; background: var(--hop-soft); color: var(--hop-ink); display: grid; place-items: center; }
.feature .ic svg { width: 22px; height: 22px; }
.feature p { color: var(--ink-2); margin-top: 6px; font-size: .99rem; }
.feature .ex { margin-top: 10px; font-family: var(--font-mono); font-size: .86rem; color: var(--muted); }
@media (max-width: 820px) { .features { grid-template-columns: minmax(0, 1fr); } .feature, .feature:nth-child(odd), .feature:nth-child(even) { padding: 20px 0; border-right: 0; } }

/* privacy diagram */
.flow { margin-top: 34px; display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 22px; align-items: stretch; }
.device { border: 2px solid var(--ink); border-radius: 16px; padding: 18px; position: relative; }
.device > .eyebrow { position: absolute; top: -11px; left: 16px; background: var(--paper); padding: 0 8px; color: var(--ink); }
.device-row { display: grid; grid-template-columns: minmax(0, 1fr) auto minmax(0, 1.2fr) auto minmax(0, 1fr); gap: 10px; align-items: center; }
.node { border: 1px solid var(--rule); background: var(--paper-2); border-radius: 12px; padding: 12px; font-size: .92rem; min-width: 0; }
.node b { display: block; font-family: var(--font-display); font-size: 1.02rem; }
.node.gh { border-color: var(--hop); background: var(--hop-soft); }
.node small { display: block; color: var(--muted); margin-top: 4px; }
.arrow { color: var(--hop); font: 800 1.4rem/1 var(--font-mono); }
.cloud { border: 2px dashed var(--rule); border-radius: 16px; padding: 18px; display: grid; place-content: center; text-align: center; gap: 6px; color: var(--muted); }
.cloud b { font: 800 2.2rem/1 var(--font-display); color: var(--ink); }
.checks { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px 28px; }
.checks li { padding-left: 30px; position: relative; color: var(--ink-2); }
.checks li::before { content: ""; position: absolute; left: 0; top: .3em; width: 18px; height: 18px; border-radius: 5px; background: var(--hop-soft); border: 2px solid var(--hop); }
.checks li::after { content: ""; position: absolute; left: 6px; top: calc(.3em + 3px); width: 5px; height: 9px; border: solid var(--hop-ink); border-width: 0 2.5px 2.5px 0; transform: rotate(45deg); }
.checks b { color: var(--ink); }
@media (max-width: 900px) { .flow { grid-template-columns: minmax(0, 1fr); } .device-row { grid-template-columns: minmax(0, 1fr); } .arrow { transform: rotate(90deg); justify-self: center; } .checks { grid-template-columns: minmax(0, 1fr); } }

/* callout */
.callout { border-radius: var(--radius); padding: 26px 28px; background: var(--paper-2); border: 1px solid var(--rule); }
.callout.province { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
.callout h3 { font-size: var(--step-2); }
.callout p { margin-top: 10px; color: var(--ink-2); }
@media (max-width: 760px) { .callout.province { grid-template-columns: minmax(0, 1fr); } }

/* platforms */
.plat { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 28px; margin-top: 28px; }
.plat h3 { font-size: 1.05rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; padding: 0; list-style: none; }
.chips li { border: 1px solid var(--rule); border-radius: 99px; padding: 6px 13px; font-weight: 700; font-size: .93rem; background: var(--paper); }
.chips li.paste { border-style: dashed; }
@media (max-width: 760px) { .plat { grid-template-columns: minmax(0, 1fr); } }

/* FAQ */
.faq { margin-top: 26px; border-top: 1px solid var(--rule); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary { cursor: pointer; list-style: none; padding: 18px 40px 18px 0; font: 700 1.08rem/1.35 var(--font-display); position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 14px; font: 600 1.6rem/1 var(--font-mono); color: var(--hop-ink); }
.faq details[open] summary::after { content: "–"; }
.faq .a { padding: 0 0 20px; color: var(--ink-2); max-width: 46em; }

/* CTA band */
.band { background: var(--ink); color: var(--paper); border-radius: 20px; padding: clamp(28px, 5vw, 52px); display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
.band h2 { color: var(--paper); }
.band p { color: color-mix(in srgb, var(--paper) 78%, var(--ink)); margin-top: 10px; }
.band .btn-primary { background: var(--hop); }
@media (max-width: 760px) { .band { grid-template-columns: minmax(0, 1fr); } }

/* footer */
.site-foot { border-top: 1px solid var(--rule); padding-block: 48px 40px; margin-top: 40px; font-size: .95rem; }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, minmax(0, 1fr)); gap: 28px; }
.foot-grid h4 { font: 700 .8rem/1.2 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.foot-grid ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.foot-grid a { color: var(--ink-2); text-decoration: none; }
.foot-grid a:hover { color: var(--ink); text-decoration: underline; }
.foot-base { margin-top: 34px; padding-top: 20px; border-top: 1px solid var(--rule); color: var(--muted); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; font-size: .88rem; }
@media (max-width: 760px) { .foot-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } .foot-grid > :first-child { grid-column: 1 / -1; } }

/* tables */
.table-wrap { overflow-x: auto; margin-top: 22px; border: 1px solid var(--rule); border-radius: var(--radius); }
table { border-collapse: collapse; width: 100%; font-size: .96rem; }
th, td { text-align: left; padding: 12px 16px; border-bottom: 1px solid var(--rule); vertical-align: top; }
thead th { font: 700 .8rem/1.2 var(--font-body); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); background: var(--paper-2); }
tbody tr:last-child td { border-bottom: 0; }
td.yes, td .yes { color: var(--hop-ink); font-weight: 700; }
td.no, td .no { color: var(--muted); }
td.num { font-family: var(--font-mono); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* pricing */
.plans { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; margin-top: 36px; align-items: stretch; }
.plan { border: 1px solid var(--rule); border-radius: 18px; padding: 24px 22px; display: flex; flex-direction: column; gap: 14px; background: var(--paper); }
.plan.pick { border: 2px solid var(--hop); box-shadow: var(--shadow); position: relative; }
.plan.pick::before { content: "Most teachers"; position: absolute; top: -12px; left: 20px; background: var(--hop); color: var(--paper); font: 700 .75rem/1 var(--font-body); letter-spacing: .06em; text-transform: uppercase; padding: 6px 9px; border-radius: 7px; }
.plan h3 { font-size: 1.3rem; }
.price { font: 800 2.5rem/1 var(--font-display); letter-spacing: -.03em; }
.price small { font: 700 .95rem var(--font-body); color: var(--muted); letter-spacing: 0; }
.plan .for { color: var(--ink-2); font-size: .97rem; min-height: 3em; }
.plan ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: .95rem; color: var(--ink-2); }
.plan ul li { padding-left: 24px; position: relative; }
.plan ul li::before { content: "✓"; position: absolute; left: 0; color: var(--hop); font-weight: 800; }
.plan .btn { margin-top: auto; }
.toggle { display: inline-flex; border: 1px solid var(--rule); border-radius: 12px; padding: 4px; gap: 4px; margin-top: 22px; background: var(--paper-2); }
.toggle button { border: 0; background: none; padding: 8px 14px; border-radius: 9px; font: 700 .93rem var(--font-body); color: var(--muted); cursor: pointer; }
.toggle button[aria-pressed="true"] { background: var(--paper); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.12); }
@media (max-width: 1050px) { .plans { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .plans { grid-template-columns: minmax(0, 1fr); } }

/* doc pages (legal, help, districts) */
.doc-head { padding-block: clamp(36px, 6vw, 72px) 30px; border-bottom: 1px solid var(--rule); }
.doc-head h1 { font-size: clamp(2rem, 4.4vw, 3.1rem); margin-top: 12px; }
.doc-head .lead { margin-top: 14px; }
.doc { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 48px; padding-block: 40px 20px; }
.toc { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 84px); align-self: start; font-size: .94rem; }
.toc h4 { font: 700 .78rem/1.2 var(--font-body); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 10px; }
.toc ol, .toc ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; border-left: 2px solid var(--margin); padding-left: 14px; }
.toc a { color: var(--ink-2); text-decoration: none; }
.toc a:hover { color: var(--ink); text-decoration: underline; }
.prose { max-width: 46em; min-width: 0; }
.prose h2 { font-size: var(--step-2); margin-top: 46px; scroll-margin-top: 90px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 28px; scroll-margin-top: 90px; }
.prose p, .prose ul, .prose ol { margin-top: 12px; color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li + li { margin-top: 6px; }
.prose strong { color: var(--ink); }
.prose .table-wrap { margin-top: 16px; }
.prose pre { margin-top: 14px; background: var(--paper-2); border: 1px solid var(--rule); border-radius: 12px; padding: 16px; overflow-x: auto; font: .88rem/1.55 var(--font-mono); position: relative; }
.prose figure { margin: 22px 0 0; }
.prose figcaption { margin-top: 8px; font-size: .9rem; color: var(--muted); }
.note-box { margin-top: 18px; border-left: 4px solid var(--sun); background: var(--sun-soft); padding: 14px 16px; border-radius: 0 12px 12px 0; color: var(--ink); }
.note-box.ok { border-color: var(--hop); background: var(--hop-soft); }
.note-box.warn { border-color: var(--alert); background: var(--alert-soft); }
.draft { display: inline-flex; gap: 8px; align-items: center; margin-top: 16px; background: var(--sun-soft); border: 1px solid var(--sun); border-radius: 10px; padding: 8px 12px; font-size: .92rem; font-weight: 700; }
.copy-btn { position: absolute; top: 8px; right: 8px; font: 700 .8rem var(--font-body); background: var(--paper); border: 1px solid var(--rule); border-radius: 8px; padding: 5px 9px; cursor: pointer; color: var(--ink); }
.breadcrumbs { font-size: .9rem; color: var(--muted); }
.breadcrumbs a { color: var(--muted); }
@media (max-width: 900px) { .doc { grid-template-columns: minmax(0, 1fr); gap: 20px; } .toc { position: static; } }

/* help center */
.search { margin-top: 24px; position: relative; max-width: 620px; }
.search input { width: 100%; font: 400 1.08rem var(--font-body); padding: 16px 18px 16px 50px; border: 2px solid var(--rule); border-radius: 14px; background: var(--paper); color: var(--ink); }
.search input:focus { border-color: var(--hop); outline: none; }
.search svg { position: absolute; left: 17px; top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--muted); }
.results { list-style: none; padding: 0; margin: 12px 0 0; max-width: 620px; display: grid; gap: 6px; }
.results a { display: block; padding: 12px 14px; border: 1px solid var(--rule); border-radius: 12px; text-decoration: none; color: var(--ink); background: var(--paper); }
.results a small { display: block; color: var(--muted); }
.cats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 30px; }
.cat { border: 1px solid var(--rule); border-radius: 16px; padding: 20px 20px 18px; background: var(--paper); }
.cat h3 { font-size: 1.12rem; }
.cat ul { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.cat a { text-decoration: none; font-weight: 700; }
.cat a:hover { text-decoration: underline; }
@media (max-width: 900px) { .cats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .cats { grid-template-columns: minmax(0, 1fr); } }

/* forms */
.form { display: grid; gap: 16px; margin-top: 22px; max-width: 640px; }
.form label { display: grid; gap: 6px; font-weight: 700; font-size: .96rem; }
.form label span.hint { font-weight: 400; color: var(--muted); font-size: .9rem; }
.form input, .form select, .form textarea { font: 400 1rem var(--font-body); padding: 11px 13px; border: 1px solid var(--rule); border-radius: 10px; background: var(--paper); color: var(--ink); width: 100%; }
.form textarea { min-height: 120px; resize: vertical; }
.form .row2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 14px; }
.tabs { display: inline-flex; gap: 4px; border: 1px solid var(--rule); border-radius: 12px; padding: 4px; background: var(--paper-2); }
.tabs button { border: 0; background: none; padding: 9px 14px; border-radius: 9px; font: 700 .95rem var(--font-body); cursor: pointer; color: var(--muted); }
.tabs button[aria-selected="true"] { background: var(--paper); color: var(--ink); box-shadow: 0 1px 3px rgba(0,0,0,.12); }
.composed { margin-top: 18px; max-width: 640px; }
.composed pre { white-space: pre-wrap; background: var(--paper-2); border: 1px solid var(--rule); border-radius: 12px; padding: 16px; font: .92rem/1.5 var(--font-mono); max-height: 360px; overflow: auto; }
.addr { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; border: 1px solid var(--rule); border-radius: 12px; padding: 10px 12px; background: var(--paper); margin-top: 10px; }
.addr code { font-size: 1.02rem; user-select: all; }
@media (max-width: 600px) { .form .row2 { grid-template-columns: minmax(0, 1fr); } }

/* ---------- interactive demo ---------- */
.demo { margin-top: 30px; border: 1px solid var(--rule); border-radius: 20px; padding: clamp(14px, 2.4vw, 26px); background: var(--paper); box-shadow: var(--shadow); }
.demo-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 300px; gap: 16px; align-items: start; }
.win { border: 1px solid var(--rule); border-radius: 12px; overflow-x: auto; background: var(--paper); min-width: 0; }
.win-bar { display: flex; align-items: center; gap: 8px; padding: 8px 12px; font-size: .82rem; font-weight: 700; color: var(--muted); background: var(--paper-2); border-bottom: 1px solid var(--rule); }
.win-bar .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--rule); }
.win-bar .app { color: var(--ink); }
.mini { width: 100%; border-collapse: collapse; font-size: .9rem; }
.mini th, .mini td { padding: 7px 10px; border-bottom: 1px solid var(--rule); text-align: left; white-space: nowrap; }
.mini th { font: 700 .74rem/1.2 var(--font-body); letter-spacing: .05em; text-transform: uppercase; color: var(--muted); background: var(--paper); }
.mini td.g { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.mini td.g small { color: var(--muted); }
.mini .miss { color: var(--alert); font: 700 .72rem var(--font-body); letter-spacing: .05em; }
.mini tbody tr:last-child td { border-bottom: 0; }
.src .col-pick { cursor: pointer; transition: background .15s, box-shadow .15s; }
.src.picking .col-pick:hover, .src.picking .col-pick.hov { background: color-mix(in srgb, var(--hop) 16%, transparent); box-shadow: inset 0 0 0 2px var(--hop); }
.src.picking .nm.hov { box-shadow: inset 0 0 0 2px dashed; outline: 2px dashed #3B5BDB; outline-offset: -2px; }
.src .col-pick.got { background: color-mix(in srgb, var(--hop) 12%, transparent); }
.dst input { width: 56px; font: 400 .9rem var(--font-mono); padding: 4px 6px; border: 1px solid var(--rule); border-radius: 6px; background: var(--paper); color: var(--ink); text-align: center; }
.dst td.cell { cursor: default; }
.dst.picking td.cell { cursor: pointer; }
.dst.picking td.cell:hover { box-shadow: inset 0 0 0 2px var(--hop); }
.dst td[data-mark="filled"] input { border-color: var(--hop); box-shadow: 0 0 0 2px color-mix(in srgb, var(--hop) 35%, transparent); background: var(--hop-soft); }
.dst td[data-mark="kept"] input { border-color: var(--muted); box-shadow: 0 0 0 2px color-mix(in srgb, var(--muted) 30%, transparent); }
.dst td[data-mark="skipped"] input { border: 2px dashed var(--sun); }
.dst td[data-mark="nomatch"] input { border-color: var(--alert); box-shadow: 0 0 0 2px color-mix(in srgb, var(--alert) 30%, transparent); }
.panel { border: 1px solid var(--rule); border-radius: 12px; background: var(--paper-2); min-height: 100%; display: flex; flex-direction: column; overflow: hidden; }
.panel-head { display: flex; align-items: center; gap: 8px; padding: 10px 12px; background: var(--paper); border-bottom: 1px solid var(--rule); font: 800 1rem var(--font-display); }
.panel-head svg { width: 24px; height: 24px; }
.panel-head .pill { margin-left: auto; font: 700 .68rem var(--font-body); letter-spacing: .06em; text-transform: uppercase; color: var(--hop-ink); background: var(--hop-soft); padding: 3px 7px; border-radius: 99px; }
.panel-body { padding: 12px; display: grid; gap: 10px; font-size: .9rem; }
.panel-body .say { color: var(--ink-2); }
.panel-body .say b { color: var(--ink); }
.pbtns { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.pbtn { border: 1px solid var(--rule); background: var(--paper); color: var(--ink); border-radius: 10px; padding: 11px 10px; font: 700 .95rem var(--font-body); cursor: pointer; }
.pbtn.go { background: var(--hop); border-color: var(--hop); color: #fff; }
:root[data-theme="dark"] .pbtn.go { color: #0E1626; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .pbtn.go { color: #0E1626; } }
.pbtn[disabled] { opacity: .45; cursor: not-allowed; }
.pbtn.wide { grid-column: 1 / -1; }
.pbtn.pulse:not([disabled]) { animation: pbtn-pulse 1.6s ease-in-out 3; }
@keyframes pbtn-pulse { 50% { box-shadow: 0 0 0 6px color-mix(in srgb, var(--hop) 30%, transparent); } }
.dst.picking td.cell.hov { box-shadow: inset 0 0 0 2px var(--hop); background: color-mix(in srgb, var(--hop) 10%, transparent); }
.dst.picking tbody td { cursor: pointer; }
.tray { border: 1px solid var(--rule); background: var(--paper); border-radius: 10px; padding: 10px; }
.tray .eyebrow { font-size: .66rem; }
.tray b { display: block; font-family: var(--font-display); font-size: 1rem; }
.rv { list-style: none; margin: 0; padding: 0; display: grid; gap: 5px; max-height: 300px; overflow: auto; }
.rv li { display: grid; grid-template-columns: 16px minmax(0, 1fr) auto; gap: 7px; align-items: center; background: var(--paper); border: 1px solid var(--rule); border-radius: 8px; padding: 6px 8px; }
.rv li.check { border-color: var(--sun); }
.rv li.nomatch { border-style: dashed; }
.rv li > span { min-width: 0; }
.rv .n { display: block; font-weight: 700; font-size: .86rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rv .f { display: block; font-size: .75rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.rv .v { font: 700 .95rem var(--font-mono); }
.rv input { accent-color: var(--hop); margin: 0; }
.badge { display: inline-block; font: 700 .64rem/1.4 var(--font-body); letter-spacing: .03em; padding: 0 5px; border-radius: 4px; background: var(--paper-2); color: var(--muted); margin-left: 3px; vertical-align: 1px; }
.badge.warn { background: var(--sun-soft); color: var(--ink); }
.badge.bad { background: var(--alert-soft); color: var(--alert); }
.badge.ok { background: var(--hop-soft); color: var(--hop-ink); }
.demo-foot { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; margin-top: 14px; font-size: .9rem; color: var(--muted); }
.demo-foot button { background: none; border: 0; color: var(--hop-ink); font: 700 .9rem var(--font-body); cursor: pointer; padding: 0; text-decoration: underline; text-underline-offset: 3px; }
@media (max-width: 1080px) { .demo-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } .panel { grid-column: 1 / -1; } }
@media (max-width: 700px) { .demo-grid { grid-template-columns: minmax(0, 1fr); } .win { overflow-x: auto; } }

/* ---- checkout, license key and contact ------------------------------------- */
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.test-mode { display: inline-block; margin-top: 16px; padding: 10px 14px; border-radius: 12px; background: var(--sun-soft); color: var(--ink); font-size: .95rem; }
.test-mode code { font-weight: 700; }
.buy-alt { margin: 12px 0 0; font-size: .9rem; color: var(--muted); }
.secure-note svg { vertical-align: -2px; margin-right: 4px; color: var(--hop-ink); }
.keycard { max-width: 720px; padding: 26px; border-radius: 20px; background: var(--paper); border: 1px solid var(--rule); box-shadow: 0 14px 40px rgba(20, 33, 61, .08); }
#ac-wait { display: flex; align-items: center; gap: 14px; }
#ac-wait p { margin: 0; }
.spinner { width: 26px; height: 26px; border-radius: 50%; border: 3px solid var(--hop-soft); border-top-color: var(--hop); animation: spin .8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }
.keycard-head { display: flex; gap: 14px; align-items: center; }
.keycard-ic { width: 44px; height: 44px; border-radius: 14px; display: grid; place-items: center; background: var(--hop-soft); color: var(--hop-ink); flex: none; }
.keycard-ic svg { width: 24px; height: 24px; }
.keycard-head b { display: block; font-size: 1.2rem; }
.keycard-head small { color: var(--muted); }
.key { display: block; margin: 18px 0 14px; padding: 14px; border-radius: 12px; background: var(--paper-2); border: 1px dashed var(--rule); font-size: .82rem; line-height: 1.5; word-break: break-all; user-select: all; }
.key-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.key-msg { min-height: 1.4em; margin: 12px 0 0; color: var(--hop-ink); font-weight: 600; }
.key-steps { margin: 16px 0 0; padding-left: 1.3em; color: var(--ink-2); }
.key-steps li { margin: 4px 0; }
.key-error { max-width: 720px; margin-top: 4px; border-color: var(--alert-soft); }
.key-error h2 { font-size: 1.3rem; margin-top: 0; }
.lost { max-width: 720px; margin-top: 40px; padding-top: 28px; border-top: 1px solid var(--rule); }
.lost h2 { font-size: 1.4rem; margin: 0 0 6px; }
.lost-form { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.lost-form input { flex: 1 1 240px; min-width: 0; padding: 12px 14px; border-radius: 12px; border: 1px solid var(--rule); background: var(--paper); color: var(--ink); font: inherit; }
.lost .manage { margin-top: 18px; font-size: .95rem; }
.mail-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: 18px; margin-top: 22px; }
.mail-card { padding: 24px; border-radius: 18px; border: 1px solid var(--rule); background: var(--paper); display: flex; flex-direction: column; }
.mail-card h2 { font-size: 1.35rem; margin: 0 0 6px; }
.mail-card ol { margin: 12px 0 18px; padding-left: 1.3em; color: var(--ink-2); flex: 1; }
.mail-card ol li { margin: 3px 0; }
.mail-card .btn { align-self: flex-start; }
.addr { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }