/* Self-hosted fonts (SIL Open Font License). Generated by scripts/fetch-fonts.js. */
/* latin-ext */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-italic-ext-0.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-italic-latin-1.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-normal-ext-2.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-normal-latin-3.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-normal-ext-4.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Atkinson Hyperlegible';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(/assets/fonts/AtkinsonHyperlegible-normal-latin-5.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 500 800;
  font-stretch: 100%;
  font-display: swap;
  src: url(/assets/fonts/BricolageGrotesque-normal-ext-6.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'Bricolage Grotesque';
  font-style: normal;
  font-weight: 500 800;
  font-stretch: 100%;
  font-display: swap;
  src: url(/assets/fonts/BricolageGrotesque-normal-latin-7.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/JetBrainsMono-normal-ext-8.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(/assets/fonts/JetBrainsMono-normal-latin-9.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* latin-ext */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/assets/fonts/JetBrainsMono-normal-ext-8.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
/* latin */
@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(/assets/fonts/JetBrainsMono-normal-latin-9.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* Spreadsheet vernacular: white paper on sheet chrome, gridlines, selection green,
   highlighter yellow for the moment you get it right. Keep this file ASCII-only. */
:root {
  --ink: #14283a;
  --muted: #536472;
  --paper: #ffffff;
  --chrome: #edf2ee;
  --chrome-2: #e2eae4;
  --grid: #d3ddd7;
  --green: #1d6b45;
  --green-ink: #ffffff;
  --green-soft: #dcefe3;
  --yellow: #ffe36e;
  --yellow-ink: #3a2f00;
  --ok: #1d6b45;
  --ok-soft: #e1f2e7;
  --warn: #8a5a00;
  --warn-soft: #fff4cf;
  --err: #b3402a;
  --code-bg: #f3f6f4;
  --font-display: "Bricolage Grotesque", "Segoe UI", system-ui, sans-serif;
  --font-body: "Atkinson Hyperlegible", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #e4ece7; --muted: #9db0a6; --paper: #17201c; --chrome: #101714; --chrome-2: #1d2823; --grid: #2c3a33;
    --green: #6fcf9b; --green-ink: #0d1a13; --green-soft: #1b3a2a; --yellow: #e8c84a; --yellow-ink: #1d1800;
    --ok: #6fcf9b; --ok-soft: #173226; --warn: #e8c46a; --warn-soft: #2f2812; --err: #f0907b; --code-bg: #121a16;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #e4ece7; --muted: #9db0a6; --paper: #17201c; --chrome: #101714; --chrome-2: #1d2823; --grid: #2c3a33;
  --green: #6fcf9b; --green-ink: #0d1a13; --green-soft: #1b3a2a; --yellow: #e8c84a; --yellow-ink: #1d1800;
  --ok: #6fcf9b; --ok-soft: #173226; --warn: #e8c46a; --warn-soft: #2f2812; --err: #f0907b; --code-bg: #121a16;
  color-scheme: dark;
}

* { box-sizing: border-box; }
/* The hidden attribute must always win over component display rules (.btn, .part, ...). */
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--chrome); color: var(--ink); font-family: var(--font-body); font-size: 17px; line-height: 1.55; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.12; letter-spacing: -0.01em; text-wrap: balance; margin: 0; }
p { margin: 0; }
code, kbd, .mono { font-family: var(--font-mono); font-size: .86em; }
code { background: var(--code-bg); border: 1px solid var(--grid); border-radius: 4px; padding: .05em .35em; overflow-wrap: anywhere; }
kbd { border: 1px solid var(--grid); border-bottom-width: 2px; border-radius: 4px; padding: 0 .35em; background: var(--paper); }
a { color: var(--green); text-underline-offset: 3px; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }
input { font: inherit; color: var(--ink); background: var(--paper); border: 1px solid var(--grid); border-radius: 4px; }
input:focus { outline: none; border-color: var(--green); box-shadow: 0 0 0 3px var(--green-soft); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; background: var(--paper); padding: 8px 12px; border-radius: 4px; z-index: 10; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.scroll-x { overflow-x: auto; overflow-y: hidden; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Header */
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; padding-block: 20px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
/* Logotypen: gron text i ljust tema, vit text i morkt. */
.brand-logo { display: block; height: 40px; width: auto; }
.brand-logo-dark { display: none; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .brand-logo-light { display: none; } :root:not([data-theme="light"]) .brand-logo-dark { display: block; } }
:root[data-theme="dark"] .brand-logo-light { display: none; }
:root[data-theme="dark"] .brand-logo-dark { display: block; }
@media (max-width: 400px) { .brand-logo { height: 34px; } }
.mainnav { display: flex; gap: 20px; }
.mainnav a { color: var(--muted); text-decoration: none; font-weight: 700; font-size: .95rem; }
.mainnav a:hover { color: var(--ink); }
.mainnav a[aria-current] { color: var(--ink); box-shadow: inset 0 -3px 0 var(--green); }
.crumbs { color: var(--muted); font-size: .9rem; display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.crumbs a { color: var(--muted); }

/* Buttons */
.actions { display: flex; gap: 12px 16px; flex-wrap: wrap; align-items: center; }
.btn { border: 1px solid var(--grid); background: var(--paper); color: var(--ink); border-radius: 6px; padding: 10px 18px; font-weight: 700; text-decoration: none; display: inline-block; line-height: 1.3; }
.btn:hover { border-color: var(--green); }
.btn-primary { background: var(--green); color: var(--green-ink); border-color: var(--green); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-yellow { background: var(--yellow); color: var(--yellow-ink); border-color: var(--yellow); }
.btn-yellow:hover { filter: brightness(1.04); border-color: var(--yellow-ink); }
.btn-lg { padding: 14px 24px; font-size: 1.08rem; }
.btn-ghost { border-color: transparent; background: transparent; color: var(--muted); padding-inline: 6px; font-weight: 400; text-decoration: underline; }
.btn-ghost:hover { color: var(--ink); border-color: transparent; }

/* Hero: the headline is the selected cell A1 */
.hero { padding-block: 28px 44px; display: grid; gap: 22px; max-width: 900px; }
.hero-cell { position: relative; justify-self: start; max-width: 100%; border: 3px solid var(--green); background: var(--paper); padding: 10px 22px 14px; }
.hero-cell::after { content: ""; position: absolute; right: -7px; bottom: -7px; width: 11px; height: 11px; background: var(--green); border: 2px solid var(--paper); }
.hero-ref { position: absolute; top: -26px; left: -3px; font-family: var(--font-mono); font-size: .8rem; color: var(--green); font-weight: 600; }
.hero h1 { font-size: clamp(2.5rem, 8.5vw, 5.4rem); font-weight: 800; letter-spacing: -0.035em; line-height: 1; }
.hero-lead { font-size: 1.2rem; max-width: 36em; color: var(--ink); }

/* Try it */
.try { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 28px; align-items: start; background: var(--paper); border: 1px solid var(--grid); padding: 26px; margin-bottom: 48px; }
.try-text { display: grid; gap: 12px; align-content: start; }
.try-text h2 { font-size: 1.6rem; }
.try-sheet { min-width: 0; }

/* Compare */
.compare { margin-bottom: 48px; }
.compare h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); margin-bottom: 18px; max-width: 22em; }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.formula { margin: 0; padding: 18px 20px; background: var(--paper); border: 1px solid var(--grid); border-left-width: 6px; display: grid; gap: 10px; min-width: 0; }
.formula figcaption { font-weight: 700; }
.formula code { font-size: 1.02rem; padding: 8px 10px; display: block; border-radius: 0; }
.formula-en { border-left-color: var(--err); }
.formula-en code { text-decoration: line-through; text-decoration-color: var(--err); text-decoration-thickness: 2px; color: var(--muted); }
.formula-sv { border-left-color: var(--green); }
.formula-sv code { background: var(--green-soft); border-color: transparent; }
.formula p { color: var(--muted); font-size: .95rem; }

/* Course plan as a sheet */
.course { margin-bottom: 48px; }
.course-head { display: flex; align-items: baseline; justify-content: space-between; gap: 6px 20px; flex-wrap: wrap; margin-bottom: 14px; }
.course-head h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); }
.sheet-frame { background: var(--paper); border: 1px solid var(--grid); min-width: 0; }
.course-sheet { border-collapse: collapse; width: 100%; font-size: .97rem; }
.course-sheet th, .course-sheet td { border: 1px solid var(--grid); padding: 9px 12px; text-align: left; }
.course-sheet thead th { background: var(--chrome-2); color: var(--muted); font-weight: 400; font-size: .82rem; padding-block: 4px; }
.course-sheet tbody th { background: var(--chrome-2); color: var(--muted); font-weight: 400; font-size: .82rem; text-align: center; width: 44px; font-variant-numeric: tabular-nums; }
.course-sheet td a { color: var(--ink); font-weight: 700; text-decoration: none; }
.course-sheet td a:hover { color: var(--green); text-decoration: underline; }
.course-sheet tr[data-slug]:hover td { background: var(--green-soft); }
.course-fns { font-family: var(--font-mono); font-size: .8rem; color: var(--muted); }
.course-sheet .status { width: 64px; text-align: center; color: var(--green); font-weight: 700; }
.course-sheet tr.done .status { background: var(--green-soft); }
.course-group td { background: var(--chrome); font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; padding-top: 14px; }
.course-group th { background: var(--chrome-2); }
.sheet-tabs { display: flex; gap: 2px; background: var(--chrome-2); border-top: 1px solid var(--grid); padding: 0 8px; }
.sheet-tabs .tab { font-size: .8rem; padding: 4px 14px; color: var(--muted); }
.sheet-tabs .tab.is-active { background: var(--paper); color: var(--green); font-weight: 700; box-shadow: inset 0 -2px 0 var(--green); }

/* Lesson */
.lesson { display: grid; grid-template-columns: minmax(300px, 400px) minmax(0, 1fr); gap: 24px; align-items: start; }
.panel { background: var(--paper); border: 1px solid var(--grid); padding: 22px; display: flex; flex-direction: column; gap: 16px; position: sticky; top: 16px; min-width: 0; }
.steps { display: flex; gap: 4px; flex-wrap: wrap; }
.steps a { width: 26px; height: 26px; display: grid; place-items: center; font-size: .75rem; text-decoration: none; color: var(--muted); border: 1px solid var(--grid); background: var(--paper); font-variant-numeric: tabular-nums; }
.steps a.done { background: var(--green-soft); color: var(--green); border-color: transparent; font-weight: 700; }
.steps a[aria-current] { border: 2px solid var(--green); color: var(--ink); font-weight: 700; }
.lesson-pos { color: var(--muted); font-size: .92rem; }
.panel h1 { font-size: 1.75rem; margin-top: 2px; letter-spacing: -0.02em; }
.lesson-text { display: grid; gap: 10px; }
.lesson-text ul { margin: 0; padding-left: 1.2em; display: grid; gap: 4px; }
.task { background: var(--yellow); color: var(--yellow-ink); padding: 14px 16px; display: grid; gap: 4px; }
.task-label { font-size: 1rem; font-weight: 800; }
.task code { background: rgba(255, 255, 255, .55); border-color: rgba(0, 0, 0, .12); color: inherit; }
.hint { border-left: 3px solid var(--grid); padding: 4px 0 4px 12px; color: var(--muted); font-size: .95rem; }
.feedback { padding: 12px 14px; display: grid; gap: 4px; font-size: .97rem; border-left: 4px solid; }
.feedback.ok { background: var(--ok-soft); border-color: var(--ok); }
.feedback.ok b { color: var(--ok); }
.feedback.no { background: var(--warn-soft); border-color: var(--warn); }
.feedback.no b { color: var(--warn); }
.shortcut { font-size: .82rem; color: var(--muted); }
.workspace { min-width: 0; display: grid; gap: 12px; }

/* The sheet */
.sheet-file { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; padding: 8px 12px; font-size: .85rem; background: var(--chrome-2); border-bottom: 1px solid var(--grid); }
.xl-bar { display: flex; align-items: stretch; border-bottom: 1px solid var(--grid); }
.xl-name { padding: 9px 12px; border-right: 1px solid var(--grid); min-width: 60px; text-align: center; color: var(--ink); font-weight: 600; }
.xl-fx { display: grid; place-items: center; padding: 0 12px; color: var(--muted); font-style: italic; font-family: Georgia, serif; border-right: 1px solid var(--grid); }
.xl-input { flex: 1; min-width: 0; border: 0; border-radius: 0; padding: 10px 12px; background: transparent; font-size: 1rem; }
.xl-input:focus { box-shadow: inset 0 -3px 0 var(--green); }
.xl-body { padding: 12px; display: grid; gap: 8px; }
/* Cells use a plain UI face with tabular figures, like Excel, not the body font's slashed zero. */
.xl-body .scroll-x { padding: 0 5px 5px 0; }
.xl-grid { border-collapse: separate; border-spacing: 0; font-size: .92rem; font-family: "Segoe UI", Calibri, Carlito, "Helvetica Neue", Arial, sans-serif; font-variant-numeric: tabular-nums; }
.xl-grid th:first-child { position: sticky; left: 0; z-index: 2; }
.xl-grid td { border-width: 0 1px 1px 0 !important; }
.xl-grid tr > :first-child + td { border-left-width: 1px !important; }
.xl-grid tbody tr:first-child td, .xl-grid thead th { border-top-width: 1px; }
.xl-grid td.pointed { box-shadow: inset 0 0 0 2px var(--green); background: var(--green-soft); }
.xl-grid th { background: var(--chrome-2); color: var(--muted); font-weight: 400; font-size: .78rem; border: 1px solid var(--grid); padding: 2px 8px; min-width: 30px; }
.xl-grid td { border: 1px solid var(--grid); padding: 4px 8px; min-width: 84px; height: 30px; white-space: nowrap; cursor: cell; user-select: none; position: relative; }
.xl-grid td.num { text-align: right; }
.xl-grid td.hdr { font-weight: 700; }
.xl-grid td.target { box-shadow: inset 0 0 0 2px var(--green); }
.xl-grid td.target::after { content: ""; position: absolute; right: -4px; bottom: -4px; width: 7px; height: 7px; background: var(--green); border: 1px solid var(--paper); z-index: 1; }
.xl-grid td.filled { background: var(--green-soft); }
.xl-grid td.spill { box-shadow: inset 0 0 0 1px var(--green); background: var(--green-soft); }
.xl-grid td.bad { color: var(--err); }
.xl-grid td.solved { animation: solved 1.6s ease-out; }
@keyframes solved { 0%, 35% { background: var(--yellow); color: var(--yellow-ink); } 100% { background: var(--green-soft); } }

/* Parts, check row and help */
.parts { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.part { padding: 12px 14px; border: 1px solid var(--grid); display: grid; gap: 4px; }
.part.current { background: var(--yellow); color: var(--yellow-ink); border-color: var(--yellow); }
.part.current code { background: rgba(255, 255, 255, .55); border-color: rgba(0, 0, 0, .12); color: inherit; }
.part.done:not(.current) { color: var(--muted); }
.part.later { color: var(--muted); border-style: dashed; }
.part.later .part-task { font-size: .92rem; }
.part.done:not(.current) .task-label::after { content: " \2713"; color: var(--green); }
.group-progress { display: block; font-size: .85rem; }
.check-row { display: flex; gap: 10px 14px; flex-wrap: wrap; align-items: center; }
.check-row .shortcut { margin-left: auto; }
.milestone { margin-top: 8px; padding-top: 8px; border-top: 1px solid color-mix(in srgb, var(--ok) 30%, transparent); }
.milestone ul { margin: 6px 0 0; padding-left: 1.2em; }
.tag { display: inline-block; margin-left: 8px; font-family: var(--font-body); font-size: .72rem; padding: 1px 7px; background: var(--green); color: var(--green-ink); vertical-align: 1px; }
.tag-soft { background: var(--green-soft); color: var(--green); }
.course-foot { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 12px; }
.course-sheet tr.review td a { font-weight: 400; font-style: italic; }
.course-sheet tr.helped .status { color: var(--muted); }
.course-sheet .status small { display: block; font-size: .7rem; font-weight: 400; }
.steps a.helped { background: var(--chrome-2); color: var(--muted); border-color: transparent; }
.hero-progress { font-weight: 700; }

.steps a.gend { margin-right: 10px; }
.steps-wrap > summary { cursor: pointer; font-weight: 700; font-size: .9rem; color: var(--muted); margin-bottom: 8px; }
@media (min-width: 861px) { .steps-wrap > summary { display: none; } }
.steps a.helped { background: var(--paper); color: var(--green); border: 1px dashed var(--green); }
.task-inline { display: none; }
/* Keep spaces visible in cells (leading, trailing and double spaces matter in the clean-up lesson). */
.xl-grid td { white-space: pre; }
.skip-sheet { position: absolute; left: -9999px; }
.skip-sheet:focus { position: static; display: inline-block; background: var(--yellow); color: var(--yellow-ink); padding: 6px 10px; font-weight: 700; }
.daily { display: flex; justify-content: space-between; align-items: center; gap: 14px 24px; flex-wrap: wrap; background: var(--paper); border: 1px solid var(--grid); border-left: 6px solid var(--green); padding: 18px 22px; margin-bottom: 48px; }
.daily h2 { font-size: 1.35rem; margin-bottom: 4px; }
.course-group td .gname { margin-right: 14px; }
.gmeter { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 400; font-size: .82rem; color: var(--muted); }
.gbar { display: inline-block; width: 90px; height: 6px; background: var(--chrome-2); vertical-align: middle; }
.gbar i { display: block; height: 100%; background: var(--green); }
.goal { color: var(--ok); font-weight: 700; }
.btn-link { background: none; border: 0; padding: 0; color: var(--green); text-decoration: underline; text-underline-offset: 3px; font: inherit; cursor: pointer; }
.more .actions .small { max-width: 22em; }
#diploma.locked .diploma { opacity: .45; filter: grayscale(1); }
.diploma-meter { display: flex; align-items: center; gap: 10px; margin: 14px 0 0; color: var(--muted); }
.diploma-meter .gbar { width: 160px; }

/* Diploma */
.diploma-form { display: flex; gap: 10px 14px; align-items: center; flex-wrap: wrap; margin: 18px 0; }
.diploma-form input { padding: 9px 12px; min-width: 240px; }
.diploma { background: var(--paper); border: 3px solid var(--green); outline: 1px solid var(--green); outline-offset: 6px; padding: 40px 32px; max-width: 760px; margin: 12px 0; display: grid; gap: 12px; text-align: center; }
.diploma-site { font-family: var(--font-display); font-weight: 800; color: var(--green); }
.diploma-title { font-size: clamp(2rem, 6vw, 3.4rem); font-weight: 800; letter-spacing: -0.03em; }
.diploma-name { font-family: var(--font-display); font-size: clamp(1.6rem, 4.5vw, 2.4rem); font-weight: 700; border-bottom: 3px solid var(--yellow); justify-self: center; padding: 0 12px; }
.diploma ul { text-align: left; justify-self: center; margin: 0; padding-left: 1.2em; }
.diploma-date { color: var(--muted); }
@media print {
  .topbar, .footer, .no-print, .diploma-intro, dialog, .skip { display: none !important; }
  body { background: #fff; }
  .diploma { border-color: #1d6b45; margin: 0 auto; }
}

/* Below the lesson */
.below { display: grid; gap: 32px; margin-top: 40px; }
.below h2 { font-size: 1.4rem; margin-bottom: 12px; }
.fn-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.fn-card { background: var(--paper); border: 1px solid var(--grid); padding: 14px 16px; display: grid; gap: 6px; min-width: 0; }
.fn-card .names { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.fn-card .sv { font-family: var(--font-mono); font-weight: 600; }
.fn-card .en { color: var(--muted); font-size: .88rem; }
.fn-card .syntax { font-family: var(--font-mono); font-size: .82rem; color: var(--muted); overflow-wrap: anywhere; }
.pager { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.pager a { text-decoration: none; display: grid; gap: 2px; max-width: 48%; font-weight: 700; color: var(--ink); background: var(--paper); border: 1px solid var(--grid); padding: 12px 16px; }
.pager a:hover { border-color: var(--green); }
.pager a span { color: var(--muted); font-size: .85rem; font-weight: 400; }
.pager a.next { text-align: right; margin-left: auto; }

/* Unlock (willingness-to-pay test) */
.more { background: var(--paper); border: 1px solid var(--grid); border-top: 6px solid var(--yellow); padding: 24px; display: grid; gap: 12px; margin-bottom: 8px; }
.more h2 { font-size: 1.5rem; margin: 0; }
.more ul { margin: 0; padding: 0; list-style: none; display: flex; flex-wrap: wrap; gap: 8px; }
.more li { font-size: .9rem; padding: 3px 10px; background: var(--chrome-2); }
dialog { border: 1px solid var(--grid); border-top: 6px solid var(--yellow); background: var(--paper); color: var(--ink); padding: 24px; max-width: min(460px, calc(100vw - 32px)); }
dialog::backdrop { background: rgba(10, 24, 18, .5); }
dialog h2 { font-size: 1.35rem; margin-bottom: 10px; }
dialog p + p { margin-top: 10px; }
dialog .actions { margin-top: 18px; }

/* Glossary and prose */
.filter { width: 100%; max-width: 420px; padding: 10px 12px; margin-bottom: 14px; }
table.fn-table { border-collapse: collapse; width: 100%; font-size: .93rem; }
table.fn-table th, table.fn-table td { border: 1px solid var(--grid); padding: 8px 10px; text-align: left; vertical-align: top; }
table.fn-table th { font-weight: 400; font-size: .82rem; color: var(--muted); background: var(--chrome-2); }
table.fn-table td.mono { white-space: nowrap; }
table.fn-table .syntax { display: block; font-family: var(--font-mono); font-size: .8rem; color: var(--muted); margin-top: 2px; overflow-wrap: anywhere; }
.card { background: var(--paper); border: 1px solid var(--grid); }
.prose { max-width: 700px; display: grid; gap: 14px; }
.prose h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 800; letter-spacing: -0.03em; }
.prose h2 { font-size: 1.3rem; margin-top: 10px; }

.footer { margin-top: 56px; padding-block: 22px 40px; border-top: 1px solid var(--grid); color: var(--muted); font-size: .88rem; display: flex; gap: 8px 20px; flex-wrap: wrap; justify-content: space-between; }
.footer a { color: var(--muted); }

@media (max-width: 860px) {
  .lesson, .try, .compare-grid { grid-template-columns: minmax(0, 1fr); }
  .panel { position: static; }
  .pager a { max-width: 100%; }
  .try { padding: 18px; }
  /* On narrow screens the task panel is far above the sheet, so repeat the current task next to it. */
  .task-inline { display: block; background: var(--yellow); color: var(--yellow-ink); padding: 10px 14px; font-size: .95rem; }
  .task-inline code { background: rgba(255, 255, 255, .55); color: inherit; }
  .steps a { width: 40px; height: 40px; font-size: .85rem; }
  /* The current task is repeated next to the sheet, so it does not need to be shown twice. */
  .part.current .part-task { display: none; }
  .part.current::after { content: "Uppgiften visas vid bladet nedanf\00f6r."; font-size: .85rem; }
  /* Column A stays visible next to the row numbers when the sheet scrolls sideways. */
  .xl-grid th:first-child { width: 30px; min-width: 30px; }
  .xl-grid tr > :nth-child(2) { position: sticky; left: 30px; z-index: 1; background: var(--paper); box-shadow: 1px 0 0 var(--grid); }
  .xl-grid thead tr > :nth-child(2) { background: var(--chrome-2); }
}
@media (max-width: 560px) {
  .check-row .shortcut { margin-left: 0; width: 100%; }
  .xl-grid td { min-width: 76px; }
  table.fn-table .hide-sm, .course-fns { display: none; }
  .hero-cell { padding: 8px 14px 10px; }
}
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; }
  .xl-grid td.solved { animation: none; background: var(--green-soft); }
}

/* ---------- Funktionsforslag, argumenttips och teckenrad ---------- */
.xl-bar { position: relative; }
.xl-pop { position: absolute; left: 88px; right: 8px; top: 100%; z-index: 20; pointer-events: none; }
.xl-pop > * { pointer-events: auto; }
.xl-ac { list-style: none; margin: 4px 0 0; padding: 4px; max-width: 460px; background: var(--paper); border: 1px solid var(--grid); border-radius: 6px; box-shadow: 0 6px 18px rgba(20, 40, 58, .14); }
.xl-ac li { display: flex; gap: 10px; align-items: baseline; padding: 6px 8px; border-radius: 4px; cursor: pointer; }
.xl-ac li b { font-family: var(--font-mono); font-size: .9rem; white-space: nowrap; }
.xl-ac li span { color: var(--muted); font-size: .85rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xl-ac li.is-active, .xl-ac li:hover { background: var(--green-soft); }
.xl-tip { display: inline-block; margin-top: 4px; padding: 4px 8px; background: var(--paper); border: 1px solid var(--grid); border-radius: 4px; font-size: .85rem; box-shadow: 0 4px 12px rgba(20, 40, 58, .10); }
.xl-tip b { color: var(--green); text-decoration: underline; text-underline-offset: 3px; }
.xl-keys { display: none; gap: 6px; padding: 6px 8px; overflow-x: auto; border-bottom: 1px solid var(--grid); background: var(--chrome); }
.xl-key { flex: 0 0 auto; min-width: 40px; min-height: 40px; border: 1px solid var(--grid); border-radius: 6px; background: var(--paper); color: var(--ink); font-family: var(--font-mono); font-size: 1.05rem; }
@media (pointer: coarse) { .xl-keys { display: flex; } }
@media (max-width: 600px) { .xl-pop { left: 8px; } }

/* ---------- Sluttestets poang ---------- */
.score { margin-top: 10px; padding: 12px 14px; border: 1px solid var(--grid); border-radius: 8px; background: var(--paper); }
.score-num { margin: 0; font-family: var(--font-display); font-size: 1.5rem; }
.score-num b { font-size: 2.2rem; color: var(--green); }
.score-list { margin: 8px 0 0; padding-left: 18px; font-size: .92rem; }
.score-list .r-skip { color: var(--muted); }
.part.skipped:not(.current) .task-label::after { content: " (hoppades \00F6ver)"; color: var(--muted); font-weight: 400; }
.hint p { margin: 0 0 6px; }
.hint p:last-child { margin-bottom: 0; }

/* ---------- Val av fargtema ---------- */
.theme-pick { display: inline-flex; border: 1px solid var(--grid); border-radius: 999px; padding: 2px; background: var(--paper); }
.theme-pick button { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: .85rem; font-weight: 700; padding: 6px 12px; min-height: 32px; border-radius: 999px; cursor: pointer; }
.theme-pick button:hover { color: var(--ink); }
.theme-pick button[aria-pressed="true"] { background: var(--green); color: var(--green-ink); }
.theme-pick button:focus-visible { outline: 3px solid var(--green); outline-offset: 2px; }
.topbar { justify-content: flex-start; }
.topbar .mainnav { margin-left: auto; }
@media (max-width: 600px) { .topbar .mainnav { margin-left: 0; } }
/* Pekskarm: teckenraden far inte trycka ut bladet, och tipsrutan hamnar under raden */
.workspace > *, .sheet-frame, .xl-keys { min-width: 0; max-width: 100%; }
@media (pointer: coarse) { .xl-pop { top: calc(100% + 54px); } }
.mainnav a { display: inline-flex; align-items: center; min-height: 44px; }
/* Ovningsrutnatet per grupp */
.steps { display: grid; gap: 6px; }
.steps-group { display: grid; grid-template-columns: 92px 1fr; gap: 8px; align-items: center; }
.steps-gname { font-size: .72rem; color: var(--muted); line-height: 1.2; }
.steps-row { display: flex; gap: 4px; flex-wrap: wrap; }
.steps a.gend { margin-right: 0; }
@media (max-width: 600px) { .xl-grid { font-size: .84rem; } .xl-grid td { min-width: 52px; padding: 4px 6px; } }

.xl-key { min-width: 44px; min-height: 44px; }
@media (pointer: coarse) { .xl-pop { top: calc(100% + 58px); } }
.scroll-x.more-right { box-shadow: inset -14px 0 12px -12px rgba(20, 40, 58, .35); }
.feedback .note { display: block; margin-top: 6px; font-size: .9rem; }
.steps-legend { font-size: .75rem; color: var(--muted); margin: 6px 0 0; }

/* Argumenttipset ligger ovanfor formelfaltet, sa att kolumnrubrikerna syns */
.xl-tip { position: absolute; bottom: calc(100% + 2px); left: 88px; z-index: 21; margin: 0; white-space: nowrap; max-width: calc(100% - 96px); overflow: hidden; text-overflow: ellipsis; }
@media (max-width: 600px) { .xl-tip { left: 8px; max-width: calc(100% - 16px); } }
@media (max-width: 600px) { .theme-pick button { min-height: 44px; } }
.xl-tip { left: auto; right: 8px; }
@media (max-width: 600px) { .xl-tip { left: auto; right: 8px; } }

/* Teckenraden: tio tangenter som delar pa bredden */
.xl-keys { gap: 4px; padding: 6px; }
.xl-key { flex: 1 1 0; min-width: 28px; }
.steps a:visited { color: var(--muted); }
.steps a.done:visited { color: var(--green); }

.feedback-wrap .resume, .resume { margin: 0 0 8px; }
.xl-bar input[readonly] { background: var(--chrome-2); cursor: default; }

/* Instruktioner for mus eller pekskarm */
.touch-only { display: none; }
@media (pointer: coarse) { .touch-only { display: inline; } .mouse-only { display: none; } }
#workspace > p.small { margin-top: 8px; }

@media (max-width: 600px) {
  .topbar { gap: 8px 12px; padding-block: 14px 8px; }
  .theme-pick { order: 2; margin-left: auto; }
  .theme-pick button { padding: 6px 9px; }
  .topbar .mainnav { order: 3; width: 100%; }
}

.xl-key { min-width: 0; }

.diploma-detail { font-size: .9rem; }
section.try[hidden] { display: none; }