/* Lectly site: the Highlighter look (docs/design.md), lamplight in dark mode. Fonts are the app's own (OFL). */
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-Regular.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("fonts/Newsreader-Medium.woff") format("woff"); font-weight: 500 600; font-display: swap; }
@font-face { font-family: "Newsreader Display"; src: url("fonts/NewsreaderDisplay-Medium.woff") format("woff"); font-weight: 500; font-display: swap; }
@font-face { font-family: "Hanken Grotesk"; src: url("fonts/HankenGrotesk-Regular.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Hanken Grotesk"; src: url("fonts/HankenGrotesk-SemiBold.woff") format("woff"); font-weight: 500 600; font-display: swap; }
@font-face { font-family: "Hanken Grotesk"; src: url("fonts/HankenGrotesk-Bold.woff") format("woff"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Sora"; src: url("fonts/Sora-Regular.woff") format("woff"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Sora"; src: url("fonts/Sora-SemiBold.woff") format("woff"); font-weight: 600; font-display: swap; }
@font-face { font-family: "JetBrains Mono"; src: url("fonts/JetBrainsMono-Medium.woff") format("woff"); font-weight: 500; font-display: swap; }

:root {
  --ground: #FFFFFF; --sheet: #F4F5F8; --line: #E4E7EE; --rule: #EEF0F4; --control: #DCE0E8;
  --ink: #1A2340; --on-ink: #FFFFFF; --muted: #5B6478; --accent: #2C4BA8;
  --mark: #EEF39A; --mark-edge: #D4DA6A; --mark-text: #1A2340; --doubt: #B3342F; --good: #1F7A4D; --dash: #C9CEDA;
  --serif: "Newsreader", "Iowan Old Style", Georgia, serif;
  --display: "Newsreader Display", "Newsreader", Georgia, serif;
  --ui: "Hanken Grotesk", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ground: #12151D; --sheet: #1B2030; --line: #2A3145; --rule: #20263A; --control: #343C52;
    --ink: #E8EBF3; --on-ink: #12151D; --muted: #A3ABBD; --accent: #9DB4FF;
    --mark: rgba(238, 243, 154, .30); --mark-edge: #8C9145; --mark-text: #E8EBF3; --doubt: #FF8A80; --good: #6CCB9F; --dash: #3B4460;
  }
  .logo-light { display: none; }
}
@media (prefers-color-scheme: light) { .logo-dark { display: none; } }

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 400 17px/1.6 var(--ui); }
a { color: var(--accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
img, svg { max-width: 100%; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.num { font-variant-numeric: tabular-nums lining-nums; }
mark, .hl { background: linear-gradient(transparent 12%, var(--mark) 12%, var(--mark) 88%, transparent 88%); color: var(--mark-text); padding: 0 .12em; border-radius: 3px; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 12px; top: 12px; background: var(--ground); padding: 8px 12px; z-index: 9; }

/* Header and footer */
.top { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-top: 18px; padding-bottom: 18px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; font: 500 24px/1 var(--display); color: var(--ink); text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.nav { display: flex; gap: 4px; flex-wrap: wrap; }
.nav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 10px; border-radius: 8px; }
.nav a[aria-current="page"] { color: var(--ink); background: var(--sheet); }
.nav a:hover { color: var(--ink); }
footer { border-top: 1px solid var(--line); margin-top: 72px; padding: 28px 0 40px; color: var(--muted); font-size: 15px; }
footer .row { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer .studio { display: inline-flex; align-items: center; gap: 10px; }
footer .studio img { height: 32px; width: auto; }
footer .studio b { color: var(--ink); font-weight: 600; }
footer a { color: var(--muted); }
.note { color: var(--muted); font-size: 14px; }

/* Hero */
.hero { display: grid; grid-template-columns: 1.05fr 1fr; gap: 48px; align-items: center; padding-top: 40px; padding-bottom: 32px; }
.eyebrow, .doc .eyebrow { font: 700 13px/1 var(--ui); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); margin: 0 0 18px; }
h1 { font: 500 clamp(40px, 6vw, 60px)/1.05 var(--display); letter-spacing: -.01em; margin: 0 0 20px; }
.lede { font: 400 20px/1.55 var(--serif); color: var(--ink); margin: 0 0 28px; max-width: 34em; }
.badges { display: flex; gap: 12px; flex-wrap: wrap; }
.badge { display: inline-flex; flex-direction: column; justify-content: center; min-height: 52px; padding: 8px 18px; border-radius: 12px; border: 1px solid var(--control); font-weight: 700; color: var(--ink); }
.badge small { font-weight: 500; color: var(--muted); font-size: 13px; }
.badge.primary { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
.badge.primary small { color: var(--on-ink); opacity: .8; }
.works { margin: 18px 0 0; font-size: 14px; color: var(--muted); }

/* App previews (pure CSS, no video thumbnails) */
.previews { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.phone { border-radius: 28px; padding: 18px 16px 20px; box-shadow: 0 1px 0 rgba(0,0,0,.04), 0 18px 40px -18px rgba(26,35,64,.35); }
.phone.hl-look { background: #FFFFFF; color: #1A2340; border: 1px solid #E4E7EE; }
.phone.nd-look { background: #0E1117; color: #E7EAF0; border: 1px solid #2A3342; font-family: "Sora", var(--ui); margin-top: 36px; }
.phone .ttl { font: 500 22px/1.15 "Newsreader Display", Georgia, serif; margin: 2px 0 12px; }
.phone .k { font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; color: #5B6478; margin: 0 0 6px; }
.goal { background: #F4F5F8; border-radius: 16px; padding: 12px; display: flex; gap: 12px; align-items: center; margin-bottom: 12px; }
.ring { width: 54px; height: 54px; flex: none; }
.goal b { display: block; font-size: 15px; }
.goal span { font-size: 12.5px; color: #5B6478; }
.cont { border: 1px solid #E4E7EE; border-radius: 14px; padding: 10px 12px; margin-bottom: 10px; }
.cont .c { font: 500 15px/1.3 "Newsreader", Georgia, serif; }
.cont .s { font-size: 12px; color: #5B6478; }
.bar { height: 5px; background: #E4E7EE; border-radius: 3px; margin-top: 8px; overflow: hidden; }
.bar i { display: block; height: 100%; background: #2C4BA8; border-radius: 3px; }
.notep { font: 400 14px/1.45 "Newsreader", Georgia, serif; border-top: 1px solid #EEF0F4; padding-top: 10px; margin: 0; }
.stamp { font: 700 12px/1 "Hanken Grotesk", sans-serif; color: #2C4BA8; font-variant-numeric: tabular-nums; margin-right: 6px; }
.notep .hl { background: linear-gradient(transparent 12%, #EEF39A 12%, #EEF39A 88%, transparent 88%); color: #1A2340; }
.tag-doubt { display: inline-block; font: 700 11px/1 "Hanken Grotesk", sans-serif; color: #B3342F; margin-top: 8px; }
.nd-look .k { color: #98A2B3; font-family: "Sora", sans-serif; }
.count { display: flex; align-items: baseline; gap: 8px; margin: 2px 0 2px; }
.count b { font: 500 46px/1 "JetBrains Mono", ui-monospace, monospace; color: #8EC5FF; }
.count span { font-size: 13px; color: #98A2B3; }
.pace { font-size: 12.5px; color: #7FD6A6; margin: 0 0 12px; }
.panel { background: #171C25; border-radius: 14px; padding: 10px 12px; margin-bottom: 8px; }
.panel .r { display: flex; justify-content: space-between; align-items: center; gap: 8px; font-size: 13px; }
.mono { font-family: "JetBrains Mono", ui-monospace, monospace; font-size: 12px; color: #8EC5FF; }
.open { font: 600 10px/1 "Sora", sans-serif; color: #0E1117; background: #FF9A85; border-radius: 6px; padding: 4px 6px; letter-spacing: .04em; }
.due { color: #FF9A85; font-weight: 600; }
.ndbar { height: 4px; background: #2A3342; border-radius: 2px; margin-top: 8px; overflow: hidden; }
.ndbar i { display: block; height: 100%; background: #8EC5FF; }

/* Sections */
section { padding: 44px 0 8px; }
h2 { font: 500 clamp(28px, 4vw, 36px)/1.15 var(--display); margin: 0 0 8px; }
h3 { font: 600 19px/1.3 var(--serif); margin: 0 0 6px; }
.sub { color: var(--muted); margin: 0 0 24px; max-width: 42em; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid.three { grid-template-columns: repeat(3, 1fr); }
.tile { border: 1px solid var(--line); border-radius: 18px; padding: 20px; background: var(--ground); }
.tile.tint { background: var(--sheet); border-color: transparent; }
.tile p { margin: 0; color: var(--muted); font-size: 16px; }
.steps { counter-reset: step; list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.steps li { counter-increment: step; border-top: 2px solid var(--ink); padding-top: 14px; }
.steps li::before { content: counter(step); font: 500 15px/1 var(--display); color: var(--accent); display: block; margin-bottom: 8px; }
.steps p { margin: 0; color: var(--muted); }
.rules { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 28px; }
.rules li { padding-left: 26px; position: relative; color: var(--ink); }
.rules li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 12px; height: 7px; border-left: 2px solid var(--good); border-bottom: 2px solid var(--good); transform: rotate(-45deg); }
.langs { color: var(--muted); }

/* Documents (privacy, terms, support) */
.doc { max-width: 760px; padding-top: 24px; }
.doc h1 { font-size: clamp(34px, 5vw, 46px); }
.doc h2 { font-size: 26px; margin: 36px 0 8px; }
.doc h3 { margin: 22px 0 4px; }
.doc p, .doc li { font: 400 18px/1.6 var(--serif); }
.doc .meta { color: var(--muted); font: 400 15px/1.4 var(--ui); margin: 0 0 24px; }
.doc .summary { background: var(--sheet); border-radius: 16px; padding: 16px 20px; }
.doc .summary p { margin: 6px 0; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 0; }
.faq summary { cursor: pointer; font: 600 19px/1.35 var(--serif); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font: 500 22px/1 var(--ui); }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 10px 0 0; }

/* Shared course page (/c) */
.share-card { border: 1px solid var(--line); border-radius: 20px; padding: 24px; margin-top: 8px; }
.share-card h1 { font-size: clamp(30px, 5vw, 42px); margin-bottom: 6px; }
.share-card .from { color: var(--muted); margin: 0 0 14px; }
.share-card .counts { font-weight: 600; margin: 0 0 18px; }
.actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 18px 0 6px; }
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 20px; border-radius: 12px; font: 700 16px/1.2 var(--ui); text-decoration: none; border: 1px solid var(--control); color: var(--ink); background: var(--ground); cursor: pointer; }
.btn.primary { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
.sec { margin-top: 18px; }
.sec h2 { font-size: 20px; margin: 0 0 6px; font-family: var(--serif); font-weight: 600; }
.items { list-style: none; margin: 0; padding: 0; }
.items li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--rule); }
.items li span { color: var(--muted); }
.hidden { display: none; }

@media (max-width: 860px) {
  .hero { grid-template-columns: 1fr; gap: 32px; padding-top: 24px; }
  .grid.three, .steps { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .wrap { padding: 0 16px; }
  .grid, .grid.three, .steps, .rules { grid-template-columns: 1fr; }
  .previews { grid-template-columns: 1fr; }
  .phone.nd-look { margin-top: 0; }
  .lede { font-size: 18px; }
  .nav a { padding: 8px 8px; }
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
.w46 { width: 46%; }