/* Tulpar — five colours: Ink, Slate, Cloud, Indigo, Rose. White is used for surfaces only;
   every other shade is a tint of these five (color-mix). */
:root {
  --ink: #0f172a;
  --slate: #64748b;
  --cloud: #f4f6fb;
  --indigo: #4f46e5;
  --rose: #e5484d;

  --bg: var(--cloud);
  --surface: #ffffff;
  --text: var(--ink);
  --muted: var(--slate);
  --line: color-mix(in srgb, var(--slate) 22%, transparent);
  --field: color-mix(in srgb, var(--cloud) 70%, #ffffff);
  --accent: var(--indigo);
  --accent-soft: color-mix(in srgb, var(--indigo) 10%, transparent);
  --danger: var(--rose);
  --danger-soft: color-mix(in srgb, var(--rose) 10%, transparent);
  --code-bg: var(--ink);
  --radius: 14px;
  --shadow: 0 1px 2px color-mix(in srgb, var(--ink) 6%, transparent), 0 12px 32px -12px color-mix(in srgb, var(--ink) 18%, transparent);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: var(--ink);
    --surface: color-mix(in srgb, var(--ink) 88%, var(--cloud));
    --text: var(--cloud);
    --muted: color-mix(in srgb, var(--slate) 70%, var(--cloud));
    --line: color-mix(in srgb, var(--cloud) 12%, transparent);
    --field: color-mix(in srgb, var(--ink) 75%, var(--cloud) 6%);
    --accent: color-mix(in srgb, var(--indigo) 70%, var(--cloud));
    --accent-soft: color-mix(in srgb, var(--indigo) 22%, transparent);
    --danger-soft: color-mix(in srgb, var(--rose) 18%, transparent);
    --code-bg: color-mix(in srgb, var(--ink) 70%, black);
    --shadow: 0 0 0 1px var(--line);
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 15px; line-height: 1.55; -webkit-font-smoothing: antialiased; }
svg { width: 1em; height: 1em; }
a { color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Navigation */
.nav { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(1.4) blur(10px); border-bottom: 1px solid var(--line); }
.nav-inner { max-width: 1160px; margin: 0 auto; padding: 14px 20px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; text-decoration: none; letter-spacing: -0.01em; }
.brand-mark { width: 34px; height: 34px; }
.badge { font-size: 11px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 2px 8px; border-radius: 999px; }
.nav-links { display: flex; gap: 22px; font-size: 14px; }
.nav-links a { color: var(--muted); text-decoration: none; font-weight: 500; }
.nav-links a:hover { color: var(--text); }

/* Hero */
.hero { max-width: 760px; margin: 0 auto; padding: 56px 20px 28px; text-align: center; }
.eyebrow { display: inline-block; margin: 0 0 14px; font-size: 13px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 5px 12px; border-radius: 999px; }
.hero h1 { margin: 0; font-size: clamp(30px, 5vw, 46px); line-height: 1.1; letter-spacing: -0.03em; font-weight: 700; }
.lede { margin: 16px auto 0; max-width: 620px; color: var(--muted); font-size: 17px; }
.lede strong { color: var(--text); }
.stacks { list-style: none; margin: 22px 0 0; padding: 0; display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.stacks li { font-size: 13px; font-weight: 500; padding: 6px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); }

/* Workspace */
.workspace { max-width: 1160px; margin: 0 auto; padding: 12px 20px 40px; display: grid; grid-template-columns: minmax(0, 460px) minmax(0, 1fr); gap: 20px; align-items: start; }
@media (max-width: 900px) { .workspace { grid-template-columns: minmax(0, 1fr); } }
.panel { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 24px; min-width: 0; }
.form-panel { position: sticky; top: 76px; }
@media (max-width: 900px) { .form-panel { position: static; } }

/* Form */
form { display: grid; gap: 22px; }
.field { display: grid; gap: 10px; }
.label { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14px; }
.step { display: inline-grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font-size: 12px; font-weight: 700; color: var(--accent); background: var(--accent-soft); }
.hint { margin: 0; color: var(--muted); font-size: 13px; }
.hint.center { text-align: center; }
.stack-sm { display: grid; gap: 8px; }
input[type="url"], input[type="text"], input[type="password"], select {
  width: 100%; height: 44px; padding: 0 14px; font: inherit; font-size: 14px; color: var(--text);
  background: var(--field); border: 1px solid var(--line); border-radius: 10px; transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft); }
input::placeholder { color: color-mix(in srgb, var(--slate) 75%, transparent); }
.select-wrap { position: relative; }
.select-wrap::after { content: ""; position: absolute; right: 16px; top: 50%; width: 8px; height: 8px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); transform: translateY(-70%) rotate(45deg); pointer-events: none; }
select { appearance: none; padding-right: 40px; cursor: pointer; }
.select-wrap.small select { height: 36px; font-size: 13px; }
.inline-field { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.inline-field .select-wrap { width: 150px; }
.input-icon { position: relative; }
.input-icon svg { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; fill: var(--muted); }
.input-icon input { padding-left: 42px; }

.segmented { display: grid; grid-template-columns: repeat(3, 1fr); padding: 4px; gap: 4px; background: var(--field); border: 1px solid var(--line); border-radius: 12px; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; pointer-events: none; }
.segmented span { display: block; text-align: center; padding: 8px 6px; font-size: 13px; font-weight: 600; color: var(--muted); border-radius: 9px; cursor: pointer; transition: all .15s; }
.segmented input:checked + span { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px color-mix(in srgb, var(--ink) 14%, transparent); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); }

.dropzone { display: block; border: 1.5px dashed color-mix(in srgb, var(--slate) 45%, transparent); border-radius: 12px; background: var(--field); cursor: pointer; transition: border-color .15s, background .15s; }
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.dz-empty { display: grid; justify-items: center; gap: 4px; padding: 22px 16px; text-align: center; font-size: 14px; }
.dz-empty svg { width: 26px; height: 26px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; margin-bottom: 4px; }
.dz-empty small { color: var(--muted); font-size: 12px; }
.dz-file { display: flex; align-items: center; gap: 12px; padding: 10px 12px; }
.dz-file img { width: 56px; height: 40px; object-fit: cover; border-radius: 6px; border: 1px solid var(--line); background: var(--surface); }
.dz-file div { display: grid; min-width: 0; flex: 1; }
.dz-file b { font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dz-file small { color: var(--muted); font-size: 12px; }
.icon-btn { border: 0; background: transparent; color: var(--muted); cursor: pointer; font-size: 14px; padding: 6px; border-radius: 6px; }
.icon-btn:hover { color: var(--danger); background: var(--danger-soft); }

.disclosure { border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.disclosure summary { cursor: pointer; font-size: 14px; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.disclosure summary::-webkit-details-marker { display: none; }
.disclosure summary::after { content: "+"; color: var(--muted); font-weight: 400; font-size: 18px; }
.disclosure[open] summary::after { content: "–"; }
.disclosure[open] summary { margin-bottom: 12px; }
.disclosure summary .hint { margin-left: auto; margin-right: 10px; font-weight: 400; }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.check input { accent-color: var(--indigo); }

.btn-primary { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; width: 100%; border: 0; border-radius: 12px; font: inherit; font-weight: 600; font-size: 15px; color: #ffffff; background: var(--indigo); cursor: pointer; box-shadow: 0 8px 20px -8px color-mix(in srgb, var(--indigo) 70%, transparent); transition: transform .1s, filter .15s; }
.btn-primary svg { width: 18px; height: 18px; fill: currentColor; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:active { transform: translateY(1px); }
.btn-primary:disabled { filter: grayscale(.4) opacity(.6); cursor: not-allowed; }
.btn-primary.busy svg { animation: spin 1.2s linear infinite; }
.btn-secondary { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 16px; border-radius: 10px; font-weight: 600; font-size: 14px; text-decoration: none; color: var(--accent); background: var(--accent-soft); white-space: nowrap; }
.btn-secondary svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.btn-secondary:hover { background: color-mix(in srgb, var(--indigo) 16%, transparent); }
.error { margin: -8px 0 0; color: var(--danger); font-size: 13px; font-weight: 500; min-height: 0; }
.error:empty { display: none; }

/* Result panel */
.result-panel { min-height: 540px; }
.empty { display: grid; justify-items: center; text-align: center; padding: 40px 12px 16px; }
.empty-art { width: 240px; height: 132px; margin-bottom: 18px; }
.art-card { fill: var(--field); stroke: var(--line); }
.art-line { fill: color-mix(in srgb, var(--slate) 45%, transparent); }
.art-soft { fill: color-mix(in srgb, var(--slate) 22%, transparent); }
.art-accent { fill: var(--indigo); }
.art-arrow { fill: none; stroke: var(--indigo); stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; }
.art-code { fill: var(--ink); }
.art-code-line { fill: color-mix(in srgb, var(--cloud) 35%, transparent); }
.art-tick { fill: none; stroke: #ffffff; stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.empty h2 { margin: 0 0 22px; font-size: 20px; letter-spacing: -0.01em; }
.promises { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; max-width: 460px; text-align: left; }
.promises li { display: flex; gap: 14px; padding: 14px 16px; border: 1px solid var(--line); border-radius: 12px; }
.promises b { display: block; font-size: 14px; margin-bottom: 2px; }
.promises div { font-size: 13px; color: var(--muted); }
.promises .dot { flex: none; width: 10px; height: 10px; margin-top: 6px; border-radius: 50%; background: var(--indigo); box-shadow: 0 0 0 4px var(--accent-soft); }

.result-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; margin-bottom: 16px; flex-wrap: wrap; }
.result-head h2 { margin: 0; font-size: 20px; letter-spacing: -0.01em; }
.timeline { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.timeline li { position: relative; display: flex; gap: 14px; padding: 10px 0 10px 2px; font-size: 14px; color: var(--muted); }
.timeline li::before { content: ""; flex: none; width: 18px; height: 18px; margin-top: 1px; border-radius: 50%; background: var(--accent-soft); box-shadow: inset 0 0 0 2px var(--accent); }
.timeline li.done { color: var(--text); }
.timeline li.done::before { background: var(--indigo) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='m6 12 4 4 8-9' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat; box-shadow: none; }
.timeline li.warn::before { background: var(--rose); box-shadow: none; }
.timeline li.current { color: var(--text); font-weight: 600; }
.timeline li.current::before { background: none; border: 2px solid var(--accent-soft); border-top-color: var(--indigo); box-shadow: none; animation: spin .9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.banner { display: flex; align-items: center; gap: 10px; padding: 12px 14px; border-radius: 12px; font-size: 14px; font-weight: 600; margin-bottom: 18px; }
.banner::before { content: ""; flex: none; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.banner.pass { color: var(--accent); background: var(--accent-soft); }
.banner.skip { color: var(--text); background: color-mix(in srgb, var(--slate) 12%, transparent); }
.banner.skip::before { background: var(--indigo); }
.banner.fail { color: var(--danger); background: var(--danger-soft); }

.tabs { display: inline-flex; gap: 4px; padding: 4px; background: var(--field); border: 1px solid var(--line); border-radius: 12px; margin-bottom: 16px; }
.tabs button { border: 0; background: transparent; font: inherit; font-size: 13px; font-weight: 600; color: var(--muted); padding: 7px 16px; border-radius: 9px; cursor: pointer; }
.tabs button[aria-selected="true"] { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px color-mix(in srgb, var(--ink) 14%, transparent); }

.checks { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.checks > li { display: grid; grid-template-columns: 26px 1fr; gap: 10px; padding: 12px 14px; font-size: 14px; border-top: 1px solid var(--line); }
.checks > li:first-child { border-top: 0; }
.checks .icon { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%; font-size: 12px; font-weight: 700; }
.checks .pass .icon { color: #ffffff; background: var(--indigo); }
.checks .fail .icon { color: #ffffff; background: var(--rose); }
.checks .not-checked .icon { color: var(--muted); background: color-mix(in srgb, var(--slate) 16%, transparent); }
.checks .not-checked .what { color: var(--muted); }
.checks .fail .what { font-weight: 600; }
.checks ul { margin: 6px 0 0; padding: 0; list-style: none; display: grid; gap: 4px; }
.checks ul li { font-size: 12.5px; color: var(--muted); font-family: "JetBrains Mono", ui-monospace, Consolas, monospace; overflow-wrap: anywhere; }

.preview { border: 1px solid var(--line); border-radius: 12px; padding: 20px; margin-bottom: 10px; overflow: auto;
  background: repeating-conic-gradient(color-mix(in srgb, var(--slate) 10%, transparent) 0% 25%, transparent 0% 50%) 50% / 18px 18px; }
.preview img { display: block; max-width: 100%; margin: 0 auto; box-shadow: var(--shadow); }

.code { border-radius: 12px; overflow: hidden; background: var(--code-bg); }
.code-bar { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 8px 8px 8px 10px; border-bottom: 1px solid color-mix(in srgb, var(--cloud) 10%, transparent); }
.file-tabs { display: flex; gap: 4px; overflow-x: auto; }
.file-tabs button { border: 0; background: transparent; color: color-mix(in srgb, var(--cloud) 60%, transparent); font: 500 12.5px "JetBrains Mono", ui-monospace, Consolas, monospace; padding: 6px 10px; border-radius: 7px; cursor: pointer; white-space: nowrap; }
.file-tabs button[aria-selected="true"] { color: var(--cloud); background: color-mix(in srgb, var(--cloud) 12%, transparent); }
.copy { border: 1px solid color-mix(in srgb, var(--cloud) 18%, transparent); background: transparent; color: var(--cloud); font: inherit; font-size: 12px; font-weight: 600; padding: 5px 12px; border-radius: 7px; cursor: pointer; }
.copy:hover { background: color-mix(in srgb, var(--cloud) 10%, transparent); }
pre { margin: 0; padding: 16px 18px; overflow: auto; max-height: 540px; }
code { font: 13px/1.65 "JetBrains Mono", ui-monospace, Consolas, monospace; color: var(--cloud); white-space: pre; }

.foot { max-width: 1160px; margin: 0 auto; padding: 8px 20px 40px; color: var(--muted); font-size: 13px; text-align: center; }
@media (max-width: 560px) {
  /* Text links go; the account area (sign in, plan) stays. */
  .nav-links > a { display: none; }
  .hero { padding-top: 36px; }
  .panel { padding: 18px; }
  .result-head { flex-direction: column; }
}

.timeline li:not(.done):not(.current)::before { background: transparent; box-shadow: inset 0 0 0 2px var(--line); }
.tag { margin-left: 8px; font-size: 11px; font-weight: 600; color: var(--accent); background: var(--accent-soft); padding: 2px 8px; border-radius: 999px; }
.tag.warn { color: var(--danger); background: var(--danger-soft); }
.activity { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 14px; }
.activity summary { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--muted); }
.log { margin: 10px 0 0; padding-left: 18px; display: grid; gap: 4px; font-size: 13px; color: var(--muted); }

/* Framework and design system side by side; stacked on narrow screens. */
.field-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }

/* ---- Account area in the header ---- */
.account { display: flex; align-items: center; }
.btn-github { display: inline-flex; align-items: center; gap: 8px; height: 36px; padding: 0 14px; border-radius: 10px; font-weight: 600; font-size: 14px; color: #ffffff !important; background: var(--ink); text-decoration: none; }
.btn-github svg { width: 16px; height: 16px; fill: currentColor; }
.me { display: flex; align-items: center; gap: 12px; font-size: 14px; }
.me-name { font-weight: 600; color: var(--text); }
.me-left { color: var(--muted); }
.link-btn { border: 0; background: none; padding: 0; font: inherit; font-weight: 600; color: var(--accent); cursor: pointer; }
.link-btn.muted { color: var(--muted); font-weight: 500; }
.link-btn.small { font-size: 13px; justify-self: start; }
@media (max-width: 640px) { .me-left { display: none; } .nav-links { gap: 14px; } }

/* ---- Pricing ---- */
.pricing { max-width: 880px; margin: 64px auto 24px; padding: 0 16px; text-align: center; }
.pricing h2 { font-size: 32px; letter-spacing: -0.02em; margin: 0 0 8px; }
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin: 28px 0 18px; text-align: left; }
.plan { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 14px; box-shadow: var(--shadow); }
.plan.featured { border: 2px solid var(--indigo); }
.plan h3 { margin: 0; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.plan .price { margin: 0; color: var(--muted); }
.plan .price span { font-size: 36px; font-weight: 700; color: var(--text); letter-spacing: -0.02em; }
.plan ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; flex: 1; }
.plan li { padding-left: 24px; position: relative; font-size: 14px; }
.plan li::before { content: ""; position: absolute; left: 2px; top: 4px; width: 10px; height: 6px; border-left: 2px solid var(--indigo); border-bottom: 2px solid var(--indigo); transform: rotate(-45deg); }
.btn-plan { display: inline-flex; align-items: center; justify-content: center; height: 44px; border: 0; border-radius: 12px; font: inherit; font-weight: 600; font-size: 15px; color: #ffffff; background: var(--indigo); cursor: pointer; text-decoration: none; }
.btn-plan.secondary { color: var(--accent); background: var(--accent-soft); }
.btn-plan:disabled { opacity: .6; cursor: default; }
@media (max-width: 680px) { .plans { grid-template-columns: 1fr; } }

/* ---- Notices (upgrade, welcome) ---- */
.notice { max-width: 1120px; margin: 0 auto 16px; padding: 12px 16px; border-radius: 12px; background: var(--accent-soft); color: var(--text); font-size: 14px; display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.notice[hidden] { display: none !important; }

/* ---- Pricing page ---- */
.pricing h1 { font-size: clamp(30px, 4.5vw, 44px); letter-spacing: -0.03em; line-height: 1.1; margin: 8px auto 12px; max-width: 720px; }
.pricing .eyebrow { margin: 0; }
.plan h2 { margin: 0; font-size: 18px; display: flex; align-items: center; gap: 8px; }
.btn-plan.current { cursor: default; color: var(--muted); background: transparent; border: 1px solid var(--line); }
.nav-links a[aria-current="page"] { color: var(--text); }
.faq { max-width: 680px; margin: 56px auto 0; text-align: left; }
.faq h2 { font-size: 22px; text-align: center; margin: 0 0 16px; }
.faq details { border-bottom: 1px solid var(--line); padding: 14px 4px; }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::after { content: "+"; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq summary::-webkit-details-marker { display: none; }
.faq p { margin: 10px 0 0; color: var(--muted); font-size: 14px; line-height: 1.6; }

/* ---- Add a design system from npm ---- */
.add-ds { border: 1px dashed var(--line); border-radius: 12px; padding: 14px; display: grid; gap: 10px; background: var(--accent-soft); }
.add-ds[hidden] { display: none !important; }
.add-ds-title { margin: 0; font-weight: 600; font-size: 14px; }
.add-ds-row { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) auto; gap: 8px; }
.add-ds-row .btn-secondary { height: 44px; border: 0; cursor: pointer; font: inherit; font-weight: 600; }
@media (max-width: 520px) { .add-ds-row { grid-template-columns: 1fr 1fr; } .add-ds-row input:first-child { grid-column: 1 / -1; } }

/* ---- About page and credit ---- */
.credit { display: inline-block; margin-top: 6px; }
.credit a { color: var(--muted); }
.about { max-width: 720px; margin: 40px auto 24px; padding: 0 16px; }
.about h1 { font-size: clamp(28px, 4vw, 40px); letter-spacing: -0.03em; line-height: 1.15; margin: 10px 0 12px; }
.about section { margin-top: 28px; }
.about h2 { font-size: 18px; margin: 0 0 8px; }
.about p { line-height: 1.7; color: var(--text); }
.about .lede { color: var(--muted); }
.about .lede { margin-left: 0; margin-right: 0; text-align: left; }