/* Peak Apps Tools: a quiet workbench. Paper, graphite ink, one accent per tool. */

@font-face { font-family: "Geist"; src: url("/assets/fonts/geist.woff2") format("woff2"); font-weight: 300 700; font-display: swap; }
@font-face { font-family: "Geist Mono"; src: url("/assets/fonts/geist-mono.woff2") format("woff2"); font-weight: 400 500; font-display: swap; }
@font-face { font-family: "Instrument Serif"; src: url("/assets/fonts/instrument-serif.woff2") format("woff2"); font-weight: 400; font-display: swap; }
@font-face { font-family: "Instrument Serif"; src: url("/assets/fonts/instrument-serif-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }

:root {
  --paper: #f5f3ee;
  --paper-2: #ece9e1;
  --card: #fbfaf7;
  --ink: #141518;
  --ink-2: #33363d;
  --muted: #676b74;
  --line: rgba(20, 21, 24, 0.12);
  --line-2: rgba(20, 21, 24, 0.22);
  --accent: #1f5c4d;          /* each tool overrides this on <body style="--accent:..."> */
  --accent-ink: #ffffff;
  --accent-soft: color-mix(in oklab, var(--accent) 12%, var(--paper));
  --warn: #9a4a12;
  --ok: #2c6a3f;
  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Instrument Serif", "Iowan Old Style", Georgia, serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --gutter: clamp(16px, 4vw, 48px);
  --max: 1240px;
  --radius: 10px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #111214; --paper-2: #17191c; --card: #1b1d21; --ink: #eef0f3; --ink-2: #c9ccd2; --muted: #8e939c;
    --line: rgba(238, 240, 243, 0.12); --line-2: rgba(238, 240, 243, 0.22); --warn: #e3a36b; --ok: #7cc493;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #111214; --paper-2: #17191c; --card: #1b1d21; --ink: #eef0f3; --ink-2: #c9ccd2; --muted: #8e939c;
  --line: rgba(238, 240, 243, 0.12); --line-2: rgba(238, 240, 243, 0.22); --warn: #e3a36b; --ok: #7cc493;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 80px; }
body { margin: 0; background: var(--paper); color: var(--ink); font-family: var(--sans); font-size: 16.5px; line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img, svg, canvas { max-width: 100%; }
img { display: block; height: auto; }
a { color: inherit; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--accent); color: var(--accent-ink); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -9999px; top: 10px; z-index: 100; background: var(--ink); color: var(--paper); padding: 8px 12px; border-radius: 6px; }
.skip:focus { left: 10px; }
.wrap { width: min(100% - 2 * var(--gutter), var(--max)); margin-inline: auto; }

/* ---------- Header ---------- */
.site-head { position: sticky; top: 0; z-index: 40; background: color-mix(in oklab, var(--paper) 88%, transparent); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; gap: 16px; min-height: 60px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -0.01em; }
.brand svg { width: 22px; height: 22px; }
.brand-sub { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 400; padding-left: 10px; border-left: 1px solid var(--line-2); }
.head-nav { margin-left: auto; display: flex; gap: 4px; align-items: center; }
.head-nav a { font-size: 14.5px; text-decoration: none; padding: 7px 10px; border-radius: 8px; color: var(--ink-2); }
.head-nav a:hover { background: var(--paper-2); color: var(--ink); }
.head-nav a[aria-current="page"] { color: var(--ink); background: var(--paper-2); }
@media (max-width: 900px) { .head-nav .hide-sm { display: none; } }
@media (max-width: 640px) { .brand-sub { display: none; } }
@media (max-width: 480px) { .site-head .brand, .head-nav a { white-space: nowrap; } .head-nav a[aria-current="page"] { display: none; } }

/* ---------- Type ---------- */
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; font-weight: 600; }
h1 { font-size: clamp(32px, 4.6vw, 54px); }
h1 em, h2 em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -0.01em; }
h2 { font-size: clamp(24px, 2.6vw, 32px); }
h3 { font-size: 19px; letter-spacing: -0.01em; }
.lede { font-size: clamp(17px, 1.5vw, 19px); color: var(--ink-2); max-width: 62ch; margin: 16px 0 0; }
.mono { font-family: var(--mono); }
.muted { color: var(--muted); }
small, .small { font-size: 13.5px; }

/* ---------- Breadcrumbs ---------- */
.crumbs { font-size: 13.5px; color: var(--muted); margin: 22px 0 0; }
.crumbs ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0; }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--line-2); }
.crumbs a { text-decoration: none; }

/* ---------- Hero ---------- */
.tool-hero { padding: 28px 0 24px; display: grid; gap: 8px; }
.tool-hero .facts { display: flex; flex-wrap: wrap; gap: 8px 18px; margin: 18px 0 0; padding: 0; list-style: none; font-size: 14px; color: var(--ink-2); }
.tool-hero .facts li { display: inline-flex; align-items: center; gap: 8px; }
.tool-hero .facts li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }

/* ---------- Tool shell ---------- */
.tool { display: grid; grid-template-columns: minmax(300px, 380px) minmax(0, 1fr); gap: 0; border: 1px solid var(--line-2); border-radius: 14px; background: var(--card); overflow: clip; }
.tool-panel { padding: 22px; border-right: 1px solid var(--line); display: grid; gap: 18px; align-content: start; }
.tool-stage { position: relative; min-height: 460px; background:
    linear-gradient(var(--line) 1px, transparent 1px) 0 0 / 24px 24px,
    linear-gradient(90deg, var(--line) 1px, transparent 1px) 0 0 / 24px 24px,
    var(--paper); display: grid; place-items: center; padding: 22px; }
.tool-stage canvas, .tool-stage svg, .tool-stage img { max-height: 70vh; box-shadow: 0 1px 2px rgba(0,0,0,.06), 0 12px 32px -12px rgba(0,0,0,.18); background: #fff; }
.stage-bar { position: absolute; left: 12px; right: 12px; top: 10px; display: flex; justify-content: space-between; gap: 8px; font-family: var(--mono); font-size: 12px; color: var(--muted); pointer-events: none; }
.tool-foot { grid-column: 1 / -1; border-top: 1px solid var(--line); padding: 14px 22px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; background: var(--paper); }
.tool-foot .spacer { flex: 1; }
@media (max-width: 860px) {
  .tool { grid-template-columns: 1fr; }
  .tool-panel { border-right: 0; border-bottom: 1px solid var(--line); }
  .tool-stage { min-height: 320px; }
}

/* ---------- Form controls ---------- */
.group { display: grid; gap: 10px; }
.group-title { font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin: 0; }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.field { display: grid; gap: 5px; min-width: 0; }
.field > span, .field > label { font-size: 13px; color: var(--ink-2); }
.input, .select { width: 100%; min-width: 0; font: inherit; font-size: 15px; color: var(--ink); background: var(--paper); border: 1px solid var(--line-2); border-radius: 8px; padding: 9px 11px; transition: border-color .15s, box-shadow .15s; }
.input:focus, .select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.input-unit { position: relative; }
.input-unit .input { padding-right: 38px; font-family: var(--mono); font-size: 14.5px; }
.input-unit i { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); font-style: normal; font-family: var(--mono); font-size: 12px; color: var(--muted); pointer-events: none; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; cursor: pointer; }
.check input { accent-color: var(--accent); width: 17px; height: 17px; margin-top: 3px; flex: none; }
.seg { display: inline-grid; grid-auto-flow: column; grid-auto-columns: 1fr; border: 1px solid var(--line-2); border-radius: 9px; padding: 3px; gap: 3px; background: var(--paper); }
.seg button { font: inherit; font-size: 14px; border: 0; background: transparent; color: var(--ink-2); padding: 6px 12px; border-radius: 6px; cursor: pointer; }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.hint { font-size: 13px; color: var(--muted); margin: 0; }
.warn { font-size: 13.5px; color: var(--warn); margin: 0; }

/* ---------- Buttons ---------- */
.btn { --b: var(--line-2); display: inline-flex; align-items: center; justify-content: center; gap: 8px; font: inherit; font-size: 15px; font-weight: 500; line-height: 1; padding: 11px 16px; border-radius: 9px; border: 1px solid var(--b); background: var(--card); color: var(--ink); text-decoration: none; cursor: pointer; transition: transform .15s var(--ease), background .15s, border-color .15s; white-space: nowrap; }
.btn:hover { border-color: var(--ink-2); color: var(--ink); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.btn-primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn-primary:hover { background: color-mix(in oklab, var(--accent) 86%, #000); color: var(--accent-ink); border-color: transparent; }
.btn-ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn-ink:hover { color: var(--paper); background: var(--ink-2); }
.btn-sm { padding: 8px 12px; font-size: 14px; }
.pro-tag { font-family: var(--mono); font-size: 10.5px; letter-spacing: .08em; text-transform: uppercase; padding: 3px 6px; border-radius: 5px; background: var(--ink); color: var(--paper); }

/* ---------- Drop zone ---------- */
.drop { display: grid; place-items: center; text-align: center; gap: 6px; border: 1.5px dashed var(--line-2); border-radius: 10px; padding: 18px 14px; background: var(--paper); cursor: pointer; transition: border-color .15s, background .15s; font-size: 14.5px; }
.drop:hover, .drop.is-over { border-color: var(--accent); background: var(--accent-soft); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }

/* ---------- Content ---------- */
.section { padding: clamp(48px, 7vw, 88px) 0 0; }
.prose { max-width: 70ch; }
.prose p, .prose li { color: var(--ink-2); }
.prose h2 { margin: 1.6em 0 .5em; }
.prose h3 { margin: 1.4em 0 .4em; }
.prose code, .prose kbd { font-family: var(--mono); font-size: .9em; background: var(--paper-2); padding: 1px 5px; border-radius: 4px; }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 4vw, 56px); }
.two-col > * { min-width: 0; }
@media (max-width: 860px) { .two-col { grid-template-columns: 1fr; } }
.steps { counter-reset: s; list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 18px; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 34px 1fr; gap: 14px; }
.steps li::before { content: counter(s, decimal-leading-zero); font-family: var(--mono); font-size: 13px; color: var(--accent); padding-top: 3px; }
.table-wrap { position: relative; overflow-x: auto; border: 1px solid var(--line-2); border-radius: 10px; background: var(--card); margin: 18px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; }
th, td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--line); vertical-align: top; }
th { font-weight: 600; font-size: 13px; background: var(--paper); }
tbody tr:last-child td { border-bottom: 0; }
td.num, th.num { font-family: var(--mono); text-align: right; white-space: nowrap; }
.callout { border-left: 3px solid var(--accent); background: var(--accent-soft); padding: 14px 16px; border-radius: 0 8px 8px 0; margin: 18px 0; font-size: 15px; }
.source { font-size: 13px; color: var(--muted); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line-2); margin-top: 18px; }
.faq details { border-bottom: 1px solid var(--line-2); }
.faq summary { cursor: pointer; list-style: none; padding: 16px 32px 16px 0; font-weight: 500; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 13px; font-family: var(--mono); font-size: 18px; color: var(--muted); transition: transform .2s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .answer { padding: 0 0 18px; color: var(--ink-2); max-width: 70ch; }

/* ---------- Pro ---------- */
.pro { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr); border: 1px solid var(--ink); border-radius: 14px; overflow: hidden; background: var(--card); }
.pro-left { padding: clamp(22px, 3vw, 36px); }
.pro-right { padding: clamp(22px, 3vw, 36px); background: var(--ink); color: var(--paper); display: grid; align-content: center; gap: 14px; }
.pro-right .price { font-size: 44px; font-weight: 600; letter-spacing: -0.03em; line-height: 1; }
.pro-right .price small { font-size: 15px; font-weight: 400; color: color-mix(in oklab, var(--paper) 70%, transparent); letter-spacing: 0; }
.pro-right .btn-primary { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.pro-right .btn-primary:hover { background: #fff; color: var(--ink); }
.pro-right .fine { font-size: 13px; color: color-mix(in oklab, var(--paper) 65%, transparent); margin: 0; }
.pro-list { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 10px; }
.pro-list li { display: grid; grid-template-columns: 18px 1fr; gap: 10px; font-size: 15px; }
.pro-list li::before { content: ""; width: 10px; height: 10px; margin-top: 7px; border: 1.5px solid var(--accent); border-radius: 2px; transform: rotate(45deg); }
@media (max-width: 760px) { .pro { grid-template-columns: 1fr; } }

/* ---------- License dialog ---------- */
.license-dialog { border: 1px solid var(--line-2); border-radius: 14px; padding: 0; width: min(440px, calc(100% - 32px)); background: var(--card); color: var(--ink); }
.license-dialog::backdrop { background: rgba(10, 11, 13, .45); }
.license-dialog form { padding: 22px; display: grid; gap: 14px; }
.license-status { font-size: 14px; min-height: 1.4em; margin: 0; }
.license-status[data-state="ok"] { color: var(--ok); }
.license-status[data-state="err"] { color: var(--warn); }

/* ---------- Related / cards ---------- */
.related { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 0; border-top: 1px solid var(--line-2); margin-top: 22px; }
.related a { display: grid; gap: 4px; padding: 18px 18px 18px 0; text-decoration: none; border-bottom: 1px solid var(--line); }
.related a strong { font-weight: 600; }
.related a span { font-size: 14px; color: var(--muted); }
.related a:hover strong { color: var(--accent); }

/* ---------- Footer ---------- */
.site-foot { margin-top: clamp(64px, 9vw, 120px); border-top: 1px solid var(--line-2); padding: 36px 0 44px; font-size: 14px; color: var(--muted); }
.site-foot .cols { display: grid; grid-template-columns: 1.4fr repeat(2, 1fr); gap: 28px; }
.site-foot h2 { font-size: 13px; font-family: var(--mono); letter-spacing: .1em; text-transform: uppercase; font-weight: 400; color: var(--ink-2); margin: 0 0 10px; }
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.site-foot a { text-decoration: none; }
.site-foot a:hover { text-decoration: underline; }
@media (max-width: 720px) { .site-foot .cols { grid-template-columns: 1fr; } }

/* ---------- Toast ---------- */
.toast { position: fixed; left: 50%; bottom: 22px; transform: translate(-50%, 20px); opacity: 0; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: 9px; font-size: 14px; transition: opacity .2s, transform .3s var(--ease); z-index: 90; pointer-events: none; max-width: calc(100% - 32px); }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; scroll-behavior: auto !important; } }
@media print { .site-head, .site-foot, .tool-panel, .tool-foot, .no-print { display: none !important; } body { background: #fff; } }

/* The hidden attribute must win over component display rules. */
[hidden] { display: none !important; }