/* Typeloft (laptopdesktop.xyz) — "keycap studio". Own design system; nothing shared with sister sites. */
@font-face { font-family: "Tilt Warp"; src: url("fonts/tilt-warp.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "SUSE"; src: url("fonts/suse-var.woff2") format("woff2"); font-weight: 300 800; font-display: swap; }
@font-face { font-family: "Cousine"; src: url("fonts/cousine-400.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Cousine"; src: url("fonts/cousine-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }

:root {
  --putty: #f3efe6;
  --putty-2: #ebe5d8;
  --paper: #fbf9f4;
  --shell: #d9d2c3;
  --shell-2: #b9b09d;
  --ink: #1d2124;
  --ink-2: #4a4f53;
  --ink-3: #6b6f70;
  --line: #d6cdbb;
  --signal: #ff5a1f;
  --signal-ink: #b13a0c;
  --signal-soft: #ffe2d4;
  --ok: #2b7a4b;
  --miss: #c42a3b;
  --z-lp: #eab8a4; --z-lr: #f1d38f; --z-lm: #bcd8a7; --z-li: #a6cddb;
  --z-ri: #bdb9e6; --z-rm: #e9b8d2; --z-rr: #acd8c6; --z-rp: #f2c8a5; --z-th: #ddd6c7;
  --f-display: "Tilt Warp", "Arial Rounded MT Bold", system-ui, sans-serif;
  --f-text: "SUSE", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "Cousine", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --r: 14px;
  --shadow: 0 1px 0 rgba(29, 33, 36, .06), 0 10px 30px -18px rgba(29, 33, 36, .45);
  --wrap: 1180px;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--putty); color: var(--ink); font: 400 1.0625rem/1.6 var(--f-text); }
img, svg { max-width: 100%; }
a { color: var(--ink); text-decoration-color: var(--signal); text-decoration-thickness: 2px; text-underline-offset: 3px; }
a:hover { color: var(--signal-ink); }
:focus-visible { outline: 3px solid var(--signal); outline-offset: 2px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: #fff; padding: 8px 14px; border-radius: 8px; z-index: 9; }
.skip:focus { left: 12px; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 28px; }
.wrap--narrow { max-width: 780px; }
[hidden] { display: none !important; }
.muted { color: var(--ink-3); }
code { font-family: var(--f-mono); font-size: .92em; }

/* type */
.display, .h1, .h2, .h3 { font-family: var(--f-display); font-weight: 400; letter-spacing: -.01em; line-height: 1.08; margin: 0 0 .5em; }
.display { font-size: clamp(2.4rem, 5.4vw, 4.4rem); }
.h1 { font-size: clamp(2rem, 4vw, 3.1rem); }
.h2 { font-size: clamp(1.6rem, 3vw, 2.35rem); }
.h3 { font-size: 1.35rem; }
.h4 { font: 700 1rem/1.3 var(--f-text); letter-spacing: .02em; text-transform: uppercase; margin: 1.6em 0 .6em; }
.eyebrow { font: 700 .8rem/1.2 var(--f-text); letter-spacing: .14em; text-transform: uppercase; color: var(--signal-ink); margin: 0 0 1rem; }
.eyebrow--light { color: #ffb08f; }
.lede { font-size: 1.2rem; color: var(--ink-2); max-width: 44em; }
.hint { font-size: .92rem; color: var(--ink-3); }
.label { display: block; font-weight: 700; font-size: .95rem; margin: 0 0 .4rem; }

/* keycaps (kbd) */
kbd { display: inline-block; font: 700 .82em/1 var(--f-mono); padding: .38em .55em .48em; min-width: 1.9em; text-align: center; color: var(--ink);
  background: var(--paper); border: 1px solid var(--shell-2); border-radius: 7px; box-shadow: 0 3px 0 var(--shell-2); margin: 0 .08em 3px; white-space: nowrap; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: .5em; font: 700 1rem/1 var(--f-text); padding: .95em 1.35em; border-radius: 12px; border: 2px solid var(--ink);
  text-decoration: none; cursor: pointer; transition: transform .08s ease, box-shadow .08s ease; background: transparent; color: var(--ink); }
.btn .ic { width: 1.1em; height: 1.1em; }
.btn--go { background: var(--ink); color: var(--putty); box-shadow: 0 4px 0 var(--signal); }
.btn--go:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 5px 0 var(--signal); }
.btn--go:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--signal); }
.btn--line { background: var(--paper); box-shadow: 0 4px 0 var(--shell-2); }
.btn--line:hover { color: var(--ink); transform: translateY(-1px); }
.btn--line:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--shell-2); }
.btn--small { font-size: .88rem; padding: .6em .9em; border-radius: 10px; }
.btn--danger { border-color: var(--miss); color: var(--miss); background: var(--paper); }
.linkbtn { background: none; border: 0; padding: 0; font: inherit; color: var(--ink); text-decoration: underline; text-decoration-color: var(--signal); cursor: pointer; }
.actions { display: flex; flex-wrap: wrap; gap: 14px; margin: 1.6rem 0; }
.link { font-weight: 700; display: inline-flex; align-items: center; gap: .4em; }
.link .ic { width: 1.1em; height: 1.1em; }
.tag-pass { display: inline-block; font: 700 .66rem/1 var(--f-text); letter-spacing: .08em; text-transform: uppercase; padding: .35em .5em; border-radius: 5px;
  background: var(--signal-soft); color: var(--signal-ink); vertical-align: .15em; }

/* header */
.hd { background: var(--putty); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.hd__in { max-width: var(--wrap); margin: 0 auto; padding: 14px 28px; display: flex; align-items: center; gap: 28px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand__cap { width: 42px; height: 42px; border-radius: 10px; background: var(--shell-2); padding: 0 0 5px; display: block; flex: none; }
.brand__cap span { display: grid; place-items: center; height: 100%; border-radius: 9px; background: var(--paper); font: 400 1.35rem/1 var(--f-display); border: 1px solid var(--shell-2);
  box-shadow: inset 0 -3px 0 rgba(0, 0, 0, .04); }
.brand__words { display: flex; flex-direction: column; line-height: 1.05; }
.brand__name { font: 400 1.45rem/1 var(--f-display); }
.brand__by { font-size: .74rem; color: var(--ink-3); letter-spacing: .02em; }
.nav { margin-left: auto; }
.nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: 4px; }
.nav a { display: block; padding: .55em .85em; border-radius: 9px; text-decoration: none; font-weight: 600; font-size: .98rem; color: var(--ink-2); }
.nav a:hover { background: var(--putty-2); color: var(--ink); }
.nav a[aria-current="page"] { background: var(--ink); color: var(--putty); }
.hd__chip { font: 700 .78rem/1 var(--f-text); padding: .65em .8em; border-radius: 999px; border: 1.5px dashed var(--signal); color: var(--signal-ink); text-decoration: none; white-space: nowrap; }

/* hero */
.hero { padding: 64px 0 40px; background:
  radial-gradient(1200px 400px at 85% -10%, rgba(255, 90, 31, .10), transparent 60%), var(--putty); }
.hero__grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 56px; align-items: center; }
.hero__price { font-size: .95rem; color: var(--ink-2); }
.hero__stage { position: relative; }
.hero__kb { margin: 0; padding: 22px 22px 16px; background: linear-gradient(180deg, #e3dccd, #d4ccbb); border-radius: 22px; box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .6); }
.zones { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 12px; font-size: .82rem; color: var(--ink-2); }
.zone::before { content: ""; display: inline-block; width: .8em; height: .8em; border-radius: 3px; margin-right: .4em; vertical-align: -.05em; border: 1px solid rgba(0, 0, 0, .12); }
.zone--lp::before { background: var(--z-lp); } .zone--lr::before { background: var(--z-lr); } .zone--lm::before { background: var(--z-lm); }
.zone--li::before { background: var(--z-li); } .zone--th::before { background: var(--z-th); }
.try { position: relative; background: var(--ink); color: var(--putty); border-radius: 18px; padding: 18px 22px; margin: 0 0 -28px 28px; z-index: 2; box-shadow: var(--shadow); cursor: text; }
.try__label { margin: 0 0 6px; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: #ffb08f; font-weight: 700; }
.try__line { margin: 0; font: 400 1.6rem/1.3 var(--f-mono); letter-spacing: .02em; }
.try__text .c { color: #8e9192; }
.try__text .c--ok { color: var(--putty); }
.try__text .c--cur { box-shadow: inset 0 -3px 0 var(--signal); color: #fff; }
.try__stats { margin: 6px 0 0; font-size: .9rem; color: #bfc2c2; min-height: 1.5em; }
.try__input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; border: 0; cursor: text; font-size: 16px; }
.try.is-focus { outline: 3px solid var(--signal); outline-offset: 3px; }

/* keyboard drawing */
.kb { display: block; width: 100%; height: auto; font-family: var(--f-mono); }
.kb .k > rect:first-child { fill: var(--shell-2); }
.kb .k__top { fill: var(--paper); stroke: rgba(0, 0, 0, .08); }
.kb .k__lab { font-size: 15px; font-weight: 700; fill: var(--ink); text-anchor: middle; }
.kb .k__lab--small { font-size: 11px; font-weight: 400; fill: var(--ink-2); }
.kb .k__nub { fill: var(--ink-3); }
.kb .k--lp .k__top { fill: var(--z-lp); } .kb .k--lr .k__top { fill: var(--z-lr); } .kb .k--lm .k__top { fill: var(--z-lm); } .kb .k--li .k__top { fill: var(--z-li); }
.kb .k--ri .k__top { fill: var(--z-ri); } .kb .k--rm .k__top { fill: var(--z-rm); } .kb .k--rr .k__top { fill: var(--z-rr); } .kb .k--rp .k__top { fill: var(--z-rp); }
.kb .k--th .k__top { fill: var(--z-th); }
.kb .k--new > rect:first-child { fill: var(--ink); }
.kb .k--new .k__top { stroke: var(--ink); stroke-width: 2.5; }
.kb .k--next > rect:first-child { fill: var(--signal-ink); }
.kb .k--next .k__top { fill: var(--signal); }
.kb .k--next .k__lab { fill: #fff; }
.kb .k--heat0 .k__top { fill: #eef3ea; } .kb .k--heat1 .k__top { fill: #fbe9c9; } .kb .k--heat2 .k__top { fill: #f9cf9c; }
.kb .k--heat3 .k__top { fill: #f6a873; } .kb .k--heat4 .k__top { fill: #ec7a4c; } .kb .k--heat5 .k__top { fill: #c94a2a; }
.kb .k--heat4 .k__lab, .kb .k--heat5 .k__lab { fill: #fff; }

/* three ways */
.ways { padding: 72px 0 40px; }
.ways__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.way { display: flex; flex-direction: column; gap: 10px; padding: 26px 26px 22px; text-decoration: none; color: var(--ink); background: var(--paper);
  border: 1px solid var(--shell-2); border-radius: 18px; box-shadow: 0 6px 0 var(--shell-2); transition: transform .1s ease, box-shadow .1s ease; }
.way:hover { color: var(--ink); transform: translateY(-2px); box-shadow: 0 8px 0 var(--shell-2); }
.way:active { transform: translateY(4px); box-shadow: 0 2px 0 var(--shell-2); }
.way__icon { width: 46px; height: 46px; border-radius: 12px; background: var(--signal-soft); color: var(--signal-ink); display: grid; place-items: center; }
.way__icon .ic { width: 26px; height: 26px; }
.way__title { font: 400 1.5rem/1.1 var(--f-display); }
.way__text { color: var(--ink-2); }
.way__go { margin-top: auto; font-weight: 700; display: inline-flex; align-items: center; gap: .4em; }
.way__go .ic { width: 1.1em; height: 1.1em; }

/* lesson path band */
.path-band { padding: 64px 0; }
.split { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.split--rev > :first-child { order: 2; }
.track { list-style: none; margin: 0; padding: 26px; background: var(--paper); border-radius: 20px; border: 1px solid var(--line); display: grid; gap: 18px; }
.track__unit { display: grid; grid-template-columns: 170px 1fr; gap: 14px; align-items: center; }
.track__name { font-weight: 700; font-size: .95rem; }
.track__stops { display: flex; flex-wrap: wrap; gap: 8px; position: relative; }
.stop { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 50%; background: var(--ink); color: var(--putty); text-decoration: none; font: 400 1.05rem/1 var(--f-display); box-shadow: 0 3px 0 var(--signal); }
.stop--pass { background: var(--paper); color: var(--ink); border: 2px solid var(--ink); box-shadow: 0 3px 0 var(--shell-2); }
.stop:hover { color: #fff; background: var(--signal-ink); }

/* numbers band */
.numbers { background: var(--ink); color: var(--putty); padding: 72px 0; }
.numbers .h2 { color: #fff; }
.numbers__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 18px; }
.formula { border: 1px solid #3b4044; border-radius: 16px; padding: 24px; }
.formula__name { margin: 0 0 8px; font-weight: 700; color: #ffb08f; text-transform: uppercase; font-size: .78rem; letter-spacing: .12em; }
.formula__math { font: 400 1.35rem/1.35 var(--f-mono); margin: 0 0 10px; color: #fff; }
.formula__math span { border-bottom: 2px solid var(--signal); }
.formula__note { margin: 0; color: #c7caca; font-size: .95rem; }
.formula--eg { background: #262b2e; }

/* drills band */
.drills-band { padding: 72px 0; }
.compare { background: var(--paper); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.compare__row { display: grid; grid-template-columns: 1fr 1.4fr; gap: 12px; padding: 14px 20px; border-top: 1px solid var(--line); align-items: center; }
.compare__row--head { border-top: 0; background: var(--putty-2); font-weight: 700; }

/* log band */
.logband { padding: 40px 0 72px; }
.logcard { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: 26px; box-shadow: var(--shadow); position: relative; }
.logcard__tag { position: absolute; top: -12px; left: 22px; margin: 0; font: 700 .72rem/1 var(--f-text); text-transform: uppercase; letter-spacing: .12em; background: var(--ink); color: var(--putty); padding: .5em .7em; border-radius: 6px; }
.logcard__weak { margin: 10px 0 0; }
.statrow { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 16px; margin: 6px 0 14px; }
.stat { margin: 0; display: flex; flex-direction: column; }
.stat__n { font: 400 2.2rem/1 var(--f-display); }
.stat__n small { font-size: .5em; color: var(--ink-3); }
.stat__l { font-size: .82rem; color: var(--ink-3); margin-top: 6px; }
.statrow--big .stat__n { font-size: 2.8rem; }
.spark { width: 100%; height: 70px; }
.spark polyline { fill: none; stroke: var(--signal); stroke-width: 3; stroke-linejoin: round; stroke-linecap: round; }

/* fares */
.fares { padding: 72px 0; background: var(--putty-2); }
.fares--page { background: var(--putty); padding-top: 10px; }
.fares__grid { display: grid; grid-template-columns: 1fr 1.25fr; gap: 22px; margin: 22px 0; max-width: 940px; }
.fare { background: var(--paper); border: 1px solid var(--shell-2); border-radius: 20px; padding: 28px; }
.fare--pass { border: 2px solid var(--ink); box-shadow: 0 6px 0 var(--signal); }
.fare__name { margin: 0; font-weight: 700; text-transform: uppercase; letter-spacing: .12em; font-size: .8rem; color: var(--ink-2); }
.fare__price { font: 400 3rem/1 var(--f-display); margin: 10px 0 4px; }
.fare__price span { font-size: .4em; color: var(--ink-3); font-family: var(--f-text); }
.fare__alt { margin: 0 0 12px; color: var(--ink-2); }
.fare__foot { margin: 14px 0 0; color: var(--signal-ink); }
.ticks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.ticks li { padding-left: 1.6em; position: relative; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .45em; width: .9em; height: .5em; border-left: 2.5px solid var(--ok); border-bottom: 2.5px solid var(--ok); transform: rotate(-45deg); }
.note-preview { background: var(--paper); border-left: 5px solid var(--signal); padding: 14px 18px; border-radius: 0 12px 12px 0; max-width: 52em; }
.pricenote { font-size: .92rem; color: var(--ink-2); }
.pricenote--foot { padding-bottom: 24px; }
.msg__price { font-size: .95rem; }

/* faq */
.faq { padding: 72px 0; }
.faq details { border-top: 1px solid var(--line); padding: 16px 0; }
.faq summary { font-weight: 700; font-size: 1.1rem; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font: 400 1.4rem/1 var(--f-display); color: var(--signal-ink); }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: .6em 0 0; color: var(--ink-2); }

/* page heads */
.pagehead { padding: 56px 0 26px; }
.pagehead--run { padding-bottom: 8px; }
.goal { font-weight: 700; color: var(--ink-2); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
.chips__gap { width: 14px; }
.chip { padding: .5em .9em; border-radius: 999px; border: 1.5px solid var(--shell-2); background: var(--paper); text-decoration: none; font-weight: 600; font-size: .95rem; color: var(--ink); }
.chip--on { background: var(--ink); color: var(--putty); border-color: var(--ink); }
.chip--on .tag-pass { background: #3a3f42; color: #ffb08f; }

/* lessons page */
.units { padding: 10px 0 40px; }
.unit { display: grid; grid-template-columns: 220px 1fr; gap: 28px; padding: 26px 0; border-top: 1px solid var(--line); }
.unit__no { margin: 0 0 4px; font-weight: 700; color: var(--signal-ink); font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; }
.stations { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; }
.station__link { display: grid; grid-template-columns: auto 1fr auto; gap: 14px; align-items: center; padding: 14px 16px; border-radius: 16px; background: var(--paper);
  border: 1px solid var(--shell-2); box-shadow: 0 4px 0 var(--shell-2); text-decoration: none; color: var(--ink); }
.station__link:hover { color: var(--ink); transform: translateY(-1px); }
.station__n { width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; background: var(--ink); color: var(--putty); font: 400 1.15rem/1 var(--f-display); }
.station__title { display: block; font-weight: 700; }
.station__keys { display: block; margin-top: 6px; }
.station__done { width: 26px; height: 26px; color: var(--shell-2); }
.station__done .ic { width: 26px; height: 26px; }
.aside-band { padding: 40px 0 64px; background: var(--putty-2); }

/* the practice desk */
.desk { padding: 18px 0 30px; }
.board { background: var(--paper); border: 1px solid var(--shell-2); border-radius: 22px; box-shadow: var(--shadow); padding: 18px 26px 22px; position: relative; }
.board__bar { display: flex; align-items: center; gap: 26px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.board__bar .btn { margin-left: auto; }
.meter { margin: 0; display: flex; align-items: baseline; gap: 6px; }
.meter__n { font: 400 1.9rem/1 var(--f-display); }
.meter__l { color: var(--ink-3); font-size: .88rem; }
.board__text { font: 400 clamp(1.35rem, 2.6vw, 2rem)/1.9 var(--f-mono); letter-spacing: .01em; height: calc(1.9em * 3 + 24px); overflow: hidden; padding: 12px 2px; margin-top: 8px; cursor: text; position: relative; outline: none; }
.board__text.is-focus { box-shadow: inset 0 0 0 0 transparent; }
.board__text .w { white-space: nowrap; }
.board__text .c { color: #a49c8c; border-radius: 3px; }
.board__text .c--ok { color: var(--ink); }
.board__text .c--err.c--ok { color: var(--miss); text-decoration: underline wavy var(--miss) 1px; text-underline-offset: 6px; }
.board__text .c--cur { color: var(--ink); background: var(--signal-soft); box-shadow: inset 0 -4px 0 var(--signal); }
.board__text .c--sp { white-space: pre-wrap; }
.board__text .c--sp.c--cur { background: var(--signal-soft); }
.c--flash { animation: flash .28s ease; }
@keyframes flash { 0% { background: var(--miss); color: #fff; } 100% { background: var(--signal-soft); } }
.board__hint { margin: 6px 0 0; color: var(--ink-3); font-size: .92rem; }
.board__input { position: absolute; left: 0; top: 0; width: 1px; height: 1px; opacity: 0; border: 0; padding: 0; resize: none; font-size: 16px; }
.board:has(.board__text.is-focus), .board:focus-within { outline: 3px solid var(--signal); outline-offset: 3px; }
.desk__kb { max-width: 920px; margin: 22px auto 0; padding: 18px; background: linear-gradient(180deg, #e3dccd, #d4ccbb); border-radius: 20px; }
.noscript { color: var(--miss); font: 400 1rem/1.5 var(--f-text); }
.own { background: var(--paper); border: 1px solid var(--shell-2); border-radius: 20px; padding: 22px; margin-bottom: 18px; }
.own__box { width: 100%; font: 400 1.05rem/1.5 var(--f-mono); padding: 12px; border: 1.5px solid var(--shell-2); border-radius: 12px; background: #fff; }
.own__box[aria-invalid="true"] { border-color: var(--miss); }

/* result */
.result { padding: 10px 0 30px; }
.result__card { background: var(--paper); border: 2px solid var(--ink); border-radius: 22px; padding: 26px 28px; box-shadow: 0 6px 0 var(--signal); }
.result__card .eyebrow { font-size: .95rem; outline: none; }
.result__miss { color: var(--ink-2); }
.save { display: flex; flex-wrap: wrap; gap: 12px 18px; align-items: center; margin: 18px 0 0; }
.save__where { color: var(--ink-3); font-size: .92rem; }

/* drills */
.drillgrid { padding: 8px 0 56px; }
.dgrid { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.dcard { display: grid; gap: 6px; padding: 20px; height: 100%; background: var(--paper); border: 1px solid var(--shell-2); border-radius: 18px; box-shadow: 0 5px 0 var(--shell-2); text-decoration: none; color: var(--ink); }
.dcard:hover { color: var(--ink); transform: translateY(-1px); }
.dcard__n { font: 400 2rem/1 var(--f-display); color: var(--signal-ink); }
.dcard__skill { font-size: .8rem; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); font-weight: 700; }
.dcard__title { font: 400 1.3rem/1.15 var(--f-display); }
.dcard__keys { display: grid; gap: 3px; font-size: .9rem; }
.dcard__osname { display: inline-block; min-width: 6.6em; font-size: .78rem; color: var(--ink-3); }
.dcard__par { font-size: .85rem; color: var(--ink-3); }
.sources { padding-left: 1.2em; }
.drill { display: grid; grid-template-columns: 1.15fr 1fr; gap: 26px; align-items: start; }
.drill__work { background: var(--paper); border: 1px solid var(--shell-2); border-radius: 22px; padding: 22px; box-shadow: var(--shadow); }
.drill__target { background: var(--putty-2); border-radius: 14px; padding: 14px 16px; margin-bottom: 16px; }
.drill__want { margin: 0; font: 700 1.25rem/1.5 var(--f-mono); }
.drill__box { width: 100%; font: 400 1.35rem/1.5 var(--f-mono); padding: 14px; border: 2px solid var(--ink); border-radius: 12px; background: #fff; color: var(--ink); resize: none; caret-color: var(--signal); }
.drill__box:focus { outline: 3px solid var(--signal); outline-offset: 2px; }
.drill__box.is-done { border-color: var(--ok); background: #f0f7f1; }
.drill__bar { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 14px; }
.drill__status { margin: 0; color: var(--ink-2); flex: 1 1 200px; }
.drill__keys { background: var(--ink); color: var(--putty); border-radius: 22px; padding: 22px; }
.ostabs { display: flex; gap: 6px; background: #2b3033; padding: 5px; border-radius: 12px; margin-bottom: 16px; }
.ostab { flex: 1; font: 700 .95rem/1 var(--f-text); padding: .7em .5em; border: 0; border-radius: 9px; background: transparent; color: #c7caca; cursor: pointer; }
.ostab[aria-selected="true"] { background: var(--putty); color: var(--ink); }
.steps__list { margin: 0; padding-left: 1.4em; display: grid; gap: 12px; font-size: 1.05rem; }
.steps__list li::marker { color: #ffb08f; font-weight: 700; }
.steps kbd { color: var(--ink); }
.step__type { color: #fff; }
.cite { margin: 18px 0 0; padding: 12px 14px; border-left: 3px solid var(--signal); background: #262b2e; border-radius: 0 10px 10px 0; font-size: .92rem; color: #d6d8d8; }
.cite p { margin: 0 0 6px; }
.cite footer { color: #9ea2a2; font-size: .82rem; }

/* log */
.loglink { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0; }
.loglink__label { font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; color: var(--ink-3); }
.loglink code { background: var(--paper); border: 1px dashed var(--shell-2); padding: .4em .7em; border-radius: 8px; word-break: break-all; }
.logdash { padding: 8px 0 64px; }
.logcols { display: grid; grid-template-columns: 1.5fr 1fr; gap: 20px; }
.panel { background: var(--paper); border: 1px solid var(--line); border-radius: 20px; padding: 22px; margin-bottom: 20px; }
.panel--kb .kb { max-width: 860px; }
.panel__head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px; }
.panel__tools { display: flex; gap: 8px; align-items: center; margin: 0; }
.panel__tools .ic { width: 1em; height: 1em; }
.chart { width: 100%; height: auto; }
.chart__grid { stroke: var(--line); stroke-width: 1; }
.chart__lab { font: 400 12px var(--f-text); fill: var(--ink-3); text-anchor: end; }
.chart__lab--x { text-anchor: middle; }
.chart__line { fill: none; stroke: var(--signal); stroke-width: 3; stroke-linejoin: round; }
.chart__dot { fill: var(--paper); stroke: var(--ink); stroke-width: 2; }
.minitrack { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.ministop { width: 36px; height: 36px; border-radius: 50%; display: inline-grid; place-items: center; border: 2px solid var(--shell-2); text-decoration: none; color: var(--ink-2); font: 400 .95rem/1 var(--f-display); margin: 0 6px 6px 0; }
.ministop--done { background: var(--ok); border-color: var(--ok); color: #fff; }
.plain { padding-left: 1.1em; margin: 0; }
.heatkey { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; font-size: .82rem; }
.hk { padding: .3em .6em; border-radius: 6px; border: 1px solid rgba(0, 0, 0, .08); }
.hk--0 { background: #eef3ea; } .hk--1 { background: #fbe9c9; } .hk--2 { background: #f9cf9c; } .hk--3 { background: #f6a873; } .hk--4 { background: #ec7a4c; color: #fff; } .hk--5 { background: #c94a2a; color: #fff; }
.tablewrap { overflow-x: auto; }
.results { width: 100%; border-collapse: collapse; font-size: .95rem; }
.results th, .results td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--line); }
.results th { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-3); }
.results .num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.results tr#latest { background: var(--signal-soft); }
.passed { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--ok); }
.danger { margin-top: 10px; }
.danger summary { cursor: pointer; color: var(--miss); font-weight: 700; }
.danger form { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 12px; }
.check { display: inline-flex; gap: 8px; align-items: center; }
.logopen { padding: 0 0 72px; }
.openform .row { display: flex; gap: 10px; }
.openform input { flex: 1; min-width: 0; font: 400 1rem var(--f-mono); padding: .8em; border: 1.5px solid var(--shell-2); border-radius: 12px; background: #fff; }
.mylog { background: var(--paper); border: 2px solid var(--ink); border-radius: 18px; padding: 20px; margin-bottom: 22px; }

/* prose */
.prose { padding: 0 0 72px; }
.prose p, .prose li { color: var(--ink-2); }
.prose .h2 { margin-top: 1.4em; font-size: 1.7rem; }
.prose .h3 { margin-top: 1.4em; }
.msg { padding: 80px 0; }

/* progress sheet */
.sheet { padding: 30px 0 60px; }
.sheet__page { background: #fff; max-width: 820px; margin: 0 auto; padding: 40px 44px; border-radius: 6px; box-shadow: var(--shadow); }
.sheet__head { display: flex; justify-content: space-between; border-bottom: 3px solid var(--ink); margin-bottom: 18px; }
.sheet__brand { font: 400 1.5rem/1.2 var(--f-display); margin: 0 0 10px; }
.sheet__date { margin: 0; color: var(--ink-2); align-self: flex-end; padding-bottom: 10px; }
.sheet__foot { margin-top: 18px; font-size: .82rem; color: var(--ink-3); }
.results--print { font-size: .86rem; }
.noprint { max-width: 820px; margin: 0 auto 16px; display: flex; gap: 12px; }

/* footer */
.ft { background: var(--ink); color: #c7caca; padding: 56px 0 26px; margin-top: 0; }
.ft a { color: #fff; }
.ft__grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 40px; }
.ft__name { font: 400 1.7rem/1 var(--f-display); color: #fff; margin: 0 0 10px; }
.ft__price { color: #ffb08f; }
.ft__price strong { color: #fff; }
.ft__nav { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.ft__nav ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ft__nav a { text-decoration: none; }
.ft__nav a:hover { text-decoration: underline; color: #fff; }
.ft__base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 30px; border-top: 1px solid #3b4044; margin-top: 34px; padding-top: 18px; font-size: .85rem; }
.ft__base p { margin: 0; }

/* phones and tablets */
@media (max-width: 980px) {
  .hero__grid, .split, .drill, .logcols { grid-template-columns: 1fr; gap: 32px; }
  .split--rev > :first-child { order: 0; }
  .ways__grid, .numbers__grid { grid-template-columns: 1fr; }
  .unit { grid-template-columns: 1fr; gap: 12px; }
  .hd__in { flex-wrap: wrap; gap: 10px 16px; }
  .nav { order: 3; width: 100%; margin: 0; overflow-x: auto; }
  .nav ul { gap: 2px; }
  .nav a { white-space: nowrap; padding: .5em .7em; font-size: .95rem; }
  .hd__chip { margin-left: auto; }
  .fares__grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .wrap, .hd__in { padding-left: 16px; padding-right: 16px; }
  .hd { position: static; }
  .hero { padding-top: 32px; }
  .try { margin: 0 0 12px 0; padding: 14px 16px; }
  .try__line { font-size: 1.2rem; }
  .hero__kb { padding: 12px 10px 10px; border-radius: 16px; }
  .track { padding: 16px; }
  .track__unit { grid-template-columns: 1fr; gap: 8px; }
  .stop { width: 38px; height: 38px; }
  .board { padding: 14px 14px 16px; border-radius: 16px; }
  .board__bar { gap: 14px; flex-wrap: wrap; }
  .meter__n { font-size: 1.5rem; }
  .board__text { font-size: 1.2rem; }
  .compare__row { grid-template-columns: 1fr; gap: 4px; }
  .statrow--big .stat__n { font-size: 2.1rem; }
  .ft__grid { grid-template-columns: 1fr; }
  .brand__name { font-size: 1.3rem; }
  .hd__chip { font-size: .7rem; }
  .sheet__page { padding: 22px 16px; }
  .openform .row { flex-direction: column; }
  /* v1.0.2 (review F4): every nav link visible without sideways scrolling; keycap letters readable at phone width */
  .nav { overflow-x: visible; }
  .nav ul { flex-wrap: wrap; gap: 4px; }
  .nav a { padding: .45em .65em; font-size: .92rem; }
  .kb .k__lab { font-size: 24px; }
  .kb .k__lab--small { font-size: 17px; }
  .zones { font-size: .92rem; gap: 6px 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .hd, .ft, .noprint, .skip { display: none !important; }
  body { background: #fff; }
  .sheet { padding: 0; }
  .sheet__page { box-shadow: none; padding: 0; max-width: none; }
}

/* ---------- v1.1.0: AdEngine banner (adengine.us) ----------
   One labelled slot between the main content and the graphite footer, on the public pages only (the controllers opt in).
   The label and the reserved height are on the <ins>, so when tag.js (or ae-size.js) hides a slot it cannot fill, the label
   and the space go with it (and the empty wrapper with :has). 110px = 16px label + 4px gap + 90px banner; 270px on phones
   (300x250). The footer has no top margin, so all vertical spacing is margin on the <ins>. display stays in this file and is
   never !important: tag.js hides a slot with style.display='none'. Label: the site's mono in --ink-2 (7.6:1 on putty). */
.ae-slot { padding: 0 28px; }
.ae-slot:has(> ins.adengine[style*="display: none"]) { display: none; }
.ae-slot ins.adengine { display: block; max-width: 728px; min-height: 110px; margin: 32px auto 56px; text-align: center; text-decoration: none; }
.ae-slot ins.adengine::before { content: "Advertisement"; display: block; margin-bottom: 4px; font: 400 11px/16px var(--f-mono); letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); }
.ae-slot ins.adengine a { display: inline-block; vertical-align: top; }
@media (max-width: 767px) { .ae-slot { padding: 0 18px; } .ae-slot ins.adengine { max-width: 300px; min-height: 270px; margin: 24px auto 40px; } }
@media print { .ae-slot { display: none; } }