/* zplus.ai theme.
   Layout: one centred column (68rem) of full-width bands; reading pages narrow to 42rem.
   Look: archive index card. Cool sage neutrals, ink text, one deep blue accent, and the
   capture-health colours (green, amber, red) used only for state. System fonts, like Ghost's Casper. */

:root {
  --bg: #f3f5f4;
  --paper: #fcfdfc;
  --alt: #e9eeeb;
  --ink: #17201d;
  --muted: #55625d;
  --line: #d2dad6;
  --accent: #1c5ba3;
  --accent-ink: #ffffff;
  --accent-soft: #dfe8f4;
  --good: #2b8956;
  --weak: #c48413;
  --bad: #c03c35;
  --none: #dfe5e2;
  --code: #e6ebe8;
  --f-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Noto Sans Bengali", sans-serif;
  --f-mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace;
  --r: 8px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111715; --paper: #161e1b; --alt: #1a2320; --ink: #e2e9e5; --muted: #98a6a0; --line: #2a3531;
    --accent: #7aaef0; --accent-ink: #0d1726; --accent-soft: #1a2a3e; --good: #4dbd80; --weak: #e1a53b; --bad: #ea6a61;
    --none: #26312d; --code: #1f2925; color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 1.0625rem/1.65 var(--f-sans); }
img { max-width: 100%; height: auto; }
a { color: var(--accent); text-underline-offset: 2px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.015em; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(2rem, 4.6vw, 3.1rem); font-weight: 760; }
h2 { font-size: 1.55rem; font-weight: 700; }
h3 { font-size: 1.1rem; font-weight: 680; }
p { margin: 0; }
code { font-family: var(--f-mono); font-size: 0.88em; background: var(--code); padding: 0.1em 0.35em; border-radius: 4px; overflow-wrap: anywhere; }
.mono { font-family: var(--f-mono); font-size: 0.92em; }
.muted { color: var(--muted); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 8px; background: var(--paper); padding: 6px 10px; z-index: 10; }

.wrap { max-width: 68rem; margin: 0 auto; padding-inline: 16px; }
.narrow { max-width: 42rem; }
.eyebrow { font: 600 0.78rem/1.4 var(--f-mono); letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.6rem; }
.eyebrow a { color: inherit; text-decoration: none; }
.lead { font-size: 1.18rem; color: var(--muted); margin-top: 1rem; max-width: 40rem; }

/* header and footer */
.site-head { background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.site-head-inner { display: flex; align-items: center; gap: 1.25rem; min-height: 3.75rem; flex-wrap: wrap; padding-block: 0.4rem; }
.brand { display: inline-flex; align-items: center; gap: 0.55rem; color: var(--ink); text-decoration: none; font-weight: 720; letter-spacing: -0.01em; }
.brand-small { font-size: 0.95rem; }
.logo .l-good { fill: var(--good); } .logo .l-bad { fill: var(--bad); } .logo .l-none { fill: var(--none); }
.logo .l-pick { fill: var(--good); stroke: var(--ink); stroke-width: 1.4; }
.site-nav { display: flex; gap: 1.1rem; flex-wrap: wrap; margin-left: auto; }
.site-nav a, .site-foot nav a { color: var(--muted); text-decoration: none; font-size: 0.95rem; }
.site-nav a:hover, .site-foot nav a:hover { color: var(--ink); }
.site-foot { border-top: 1px solid var(--line); background: var(--paper); margin-top: 3rem; }
.site-foot-inner { display: grid; gap: 0.75rem; padding-block: 2rem 2.5rem; font-size: 0.92rem; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 1rem; }

/* buttons and forms */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 0.4rem; background: var(--accent); color: var(--accent-ink); border: 1px solid var(--accent); border-radius: var(--r); padding: 0.7rem 1.15rem; font: 650 1rem/1.2 var(--f-sans); text-decoration: none; cursor: pointer; white-space: nowrap; }
.btn:hover { filter: brightness(1.08); }
.btn-small { padding: 0.45rem 0.8rem; font-size: 0.9rem; }
.btn-ghost { background: transparent; color: var(--accent); }
input[type="text"], input[type="password"], select { width: 100%; font: 400 1rem/1.3 var(--f-sans); color: var(--ink); background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 0.7rem 0.8rem; min-width: 0; }
input#domain { font-family: var(--f-mono); }
label { font-weight: 600; font-size: 0.95rem; }
.domain-form { display: grid; gap: 0.5rem; margin-top: 1.75rem; max-width: 34rem; }
.domain-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.domain-row input { flex: 1 1 14rem; }
.form-error { color: var(--bad); font-weight: 600; }
.form-note { color: var(--muted); font-size: 0.9rem; }
.stack { display: grid; gap: 0.6rem; }
fieldset { border: 1px solid var(--line); border-radius: var(--r); padding: 0.75rem 0.9rem; margin: 0.4rem 0; display: grid; gap: 0.6rem; min-width: 0; }
legend { font-weight: 650; font-size: 0.95rem; padding: 0 0.3rem; }
.radio { display: flex; gap: 0.55rem; align-items: baseline; font-weight: 400; }
.center-form { text-align: left; }
.center-form .domain-form { margin-top: 1rem; }

/* sections */
.hero { background: var(--paper); border-bottom: 1px solid var(--line); }
.hero-inner { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: 3rem; align-items: center; padding-block: 3.5rem 4rem; }
.hero-card { margin: 0; background: var(--bg); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem 1rem; display: grid; gap: 0.9rem; min-width: 0; }
.hero-card figcaption { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.3rem 1rem; font-size: 0.85rem; }
.pickline { font-size: 0.92rem; }
.band { padding-block: 3.5rem; }
.band-tight { padding-block: 1.5rem 3rem; }
.band-alt { background: var(--alt); }
.band h2 { margin-bottom: 1.5rem; }
.band-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.band-head h2 { margin: 0; }
.page-head { padding-block: 3rem 1rem; }
.page-head-tight { padding-block: 2.25rem 0.5rem; }
.domain-title { font-family: var(--f-mono); font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 650; letter-spacing: -0.02em; overflow-wrap: anywhere; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2.5rem; align-items: start; }
.split p + p { margin-top: 1rem; }
.split-job { grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.75fr); }

ol.steps { list-style: none; counter-reset: s; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: 1.5rem; }
ol.steps li { counter-increment: s; display: grid; gap: 0.5rem; align-content: start; }
ol.steps li::before { content: counter(s); font: 650 0.95rem/2rem var(--f-mono); width: 2rem; height: 2rem; text-align: center; border-radius: 50%; background: var(--accent-soft); color: var(--accent); }
ol.steps p, .features p { color: var(--muted); font-size: 0.98rem; }
.features { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr)); gap: 1.75rem 2rem; }
.features li { display: grid; gap: 0.4rem; align-content: start; border-top: 2px solid var(--line); padding-top: 0.9rem; }

/* health timeline */
.tl-scroll { overflow-x: auto; }
table.tl { border-collapse: separate; border-spacing: 4px; font: 0.72rem/1 var(--f-mono); color: var(--muted); }
table.tl th { font-weight: 400; text-align: center; padding: 0 0.15rem; }
table.tl tbody th { text-align: right; padding-right: 0.4rem; }
table.tl td { width: 1.25rem; height: 1.25rem; border-radius: 3px; background: var(--none); padding: 0; }
table.tl td.good { background: var(--good); }
table.tl td.weak { background: var(--weak); }
table.tl td.bad { background: var(--bad); }
table.tl td.pick { outline: 2px solid var(--ink); outline-offset: 1px; }
.legend { display: flex; flex-wrap: wrap; gap: 0.35rem 1rem; font-size: 0.82rem; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 0.35rem; }
.legend i { width: 0.75rem; height: 0.75rem; border-radius: 2px; display: inline-block; }
.legend i.good { background: var(--good); } .legend i.weak { background: var(--weak); } .legend i.bad { background: var(--bad); } .legend i.none { background: var(--none); }
.legend i.pick-key { background: transparent; outline: 2px solid var(--ink); outline-offset: -2px; }

/* tables and pills */
.tbl { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--r); background: var(--paper); min-width: 0; }
.tbl table { border-collapse: collapse; width: 100%; font-size: 0.94rem; }
.tbl th, .tbl td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl th { font: 600 0.75rem/1.4 var(--f-mono); letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
.pill { display: inline-block; font: 650 0.72rem/1.55 var(--f-mono); padding: 0 0.5em; border-radius: 999px; border: 1px solid currentColor; }
.pill.good { color: var(--good); } .pill.weak { color: var(--weak); } .pill.bad { color: var(--bad); } .pill.acc { color: var(--accent); } .pill.none { color: var(--muted); }

/* cards */
.cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: 1.25rem; }
.card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 1.15rem 1.2rem 1.3rem; display: grid; gap: 0.45rem; align-content: start; }
.card-meta { font-size: 0.82rem; color: var(--muted); }
.card-meta a { color: inherit; }
.card-title a { color: var(--ink); text-decoration: none; }
.card-title a:hover { color: var(--accent); }
.card-excerpt { color: var(--muted); font-size: 0.96rem; }
.pagination { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-top: 2rem; }

/* articles */
.article-head { padding-block: 3rem 1.5rem; display: grid; gap: 0.6rem; }
.byline { color: var(--muted); font-size: 0.95rem; }
.byline a { color: inherit; }
.prose { padding-bottom: 2rem; }
.prose > * + * { margin-top: 1.1rem; }
.prose h2 { margin-top: 2.3rem; font-size: 1.45rem; }
.prose h3 { margin-top: 1.8rem; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li + li { margin-top: 0.35rem; }
.prose pre { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 1rem; overflow-x: auto; font: 0.86rem/1.55 var(--f-mono); }
.prose pre code { background: none; padding: 0; }
.prose table { border-collapse: collapse; width: 100%; font-size: 0.94rem; display: block; overflow-x: auto; }
.prose th, .prose td { text-align: left; padding: 0.5rem 0.7rem; border-bottom: 1px solid var(--line); }
.prose blockquote { margin-left: 0; padding-left: 1rem; border-left: 3px solid var(--accent); color: var(--muted); }

/* job pages */
.panel { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 1.25rem; display: grid; gap: 0.9rem; min-width: 0; }
.panel h2 { margin: 0; font-size: 1.25rem; }
.status-card { display: flex; gap: 1.25rem; align-items: flex-start; background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 1.5rem; }
.status-text { display: grid; gap: 0.5rem; min-width: 0; }
.status-text h2 { margin: 0; font-size: 1.3rem; }
.status-message { overflow-wrap: anywhere; color: var(--muted); }
.spinner { flex: none; width: 1.6rem; height: 1.6rem; border-radius: 50%; border: 3px solid var(--none); border-top-color: var(--accent); margin-top: 0.15rem; }
@media (prefers-reduced-motion: no-preference) { .spinner { animation: spin 0.9s linear infinite; } }
@keyframes spin { to { transform: rotate(360deg); } }
.notice { background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--weak); border-radius: var(--r); padding: 0.9rem 1rem; display: grid; gap: 0.5rem; }
.notice h2 { margin: 0; font-size: 1.2rem; }
.notice-bad { border-left-color: var(--bad); }
.probes { margin-top: 1.5rem; }
.probes summary { cursor: pointer; font-weight: 600; margin-bottom: 0.75rem; }
.result { display: grid; gap: 1.1rem; max-width: 52rem; }
.result h2 { margin: 0; }
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0.75rem; margin: 0; }
.stats div { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: 0.8rem 0.9rem; }
.stats dt { font-size: 0.82rem; color: var(--muted); }
.stats dd { margin: 0.15rem 0 0; font-size: 1.45rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.stats dd.muted { font-size: 0.85rem; font-weight: 400; }
.actions { display: flex; gap: 0.6rem; flex-wrap: wrap; }
.howto { padding-left: 1.3rem; display: grid; gap: 0.35rem; margin: 0; }

@media (max-width: 860px) {
  .hero-inner, .split, .split-job { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .hero-inner { padding-block: 2.5rem 3rem; }
  .site-nav { order: 3; width: 100%; margin-left: 0; }
  .site-head .btn-small { margin-left: auto; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}