/* NZ Business Alliance
   Layout: one calm reading column for articles, wide editorial grid for
   index pages; the assistant panel is the one bold, dark object on a page. */
:root {
  --paper: #f4f6f3;      /* cool off-white, tinted toward the fern */
  --surface: #ffffff;
  --ink: #18262b;        /* slate from the logo lettering */
  --ink-soft: #4a5a5e;
  --line: #d9e0db;
  --fern: #2f5f4b;       /* deepened logo fern: links, buttons */
  --fern-tint: #e3ece6;
  --kowhai: #f0c04a;     /* used once per page, as a highlight */
  --panel: #18262b;      /* assistant panel */
  --panel-fg: #eef3ef;
  --panel-soft: #9fb3ab;
  --good: #1f7a4d;
  --bad: #b23b2e;
  --font-display: 'Newsreader', 'Iowan Old Style', Georgia, serif;
  --font-body: 'Public Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-data: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.3rem;
  --step-2: 1.7rem;
  --step-3: 2.3rem;
  --step-4: clamp(2.4rem, 5.5vw, 3.9rem);
  --radius: 10px;
  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #121b1d; --surface: #182326; --ink: #e8eee9; --ink-soft: #a8b7b2; --line: #2a3a3d;
    --fern: #8cc4a6; --fern-tint: #1f312c; --kowhai: #f0c04a; --panel: #0b1214; --panel-fg: #eef3ef;
    --panel-soft: #8ea39b; --good: #6fcf97; --bad: #f08b7e; color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #121b1d; --surface: #182326; --ink: #e8eee9; --ink-soft: #a8b7b2; --line: #2a3a3d;
  --fern: #8cc4a6; --fern-tint: #1f312c; --kowhai: #f0c04a; --panel: #0b1214; --panel-fg: #eef3ef;
  --panel-soft: #8ea39b; --good: #6fcf97; --bad: #f08b7e; color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 var(--step-0)/1.65 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--fern); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--kowhai); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.12; text-wrap: balance; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: var(--step-4); font-weight: 500; letter-spacing: -0.02em; }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-1); }
p { margin: 0; }
.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: var(--surface); padding: 8px 12px; z-index: 50; }
.eyebrow { font: 600 0.75rem/1 var(--font-body); letter-spacing: 0.14em; text-transform: uppercase; color: var(--fern); }
.lede { font-size: var(--step-1); line-height: 1.5; color: var(--ink-soft); max-width: 40em; }
mark { background: linear-gradient(transparent 58%, color-mix(in srgb, var(--kowhai) 70%, transparent) 58%); color: inherit; padding: 0 0.05em; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.5em; padding: 0.8em 1.25em; border-radius: 999px;
  font: 600 0.95rem/1 var(--font-body); text-decoration: none; border: 1.5px solid var(--fern);
  background: var(--fern); color: var(--paper); cursor: pointer; transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn.ghost { background: transparent; color: var(--fern); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Header */
.site-head { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 20; background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.brand img { width: 40px; height: 40px; border-radius: 50%; background: #fff; }
.brand span { font: 600 1.05rem/1.1 var(--font-display); }
.brand small { display: block; font: 500 0.7rem/1.2 var(--font-body); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a { color: var(--ink); text-decoration: none; padding: 8px 12px; border-radius: 8px; font-size: 0.95rem; font-weight: 500; }
.nav a:hover, .nav a[aria-current="page"] { background: var(--fern-tint); }
.nav .btn { margin-left: 8px; padding: 0.65em 1.05em; color: var(--paper); }
.nav .btn:hover { background: var(--fern); }
.menu-btn { display: none; margin-left: auto; background: none; border: 1.5px solid var(--line); border-radius: 8px; padding: 8px 12px; color: var(--ink); font: 600 0.9rem var(--font-body); }
@media (max-width: 820px) {
  .menu-btn { display: block; }
  .nav { display: none; position: absolute; left: 0; right: 0; top: 100%; flex-direction: column; align-items: stretch; padding: 12px var(--gutter) 20px; background: var(--paper); border-bottom: 1px solid var(--line); }
  .nav.open { display: flex; }
  .nav .btn { margin: 8px 0 0; justify-content: center; }
}

/* Sections */
.section { padding-block: clamp(48px, 8vw, 96px); }
.section.tint { background: var(--fern-tint); }
.section-head { display: grid; gap: 12px; margin-bottom: 36px; max-width: 46em; }

/* Home hero */
.hero { padding-block: clamp(40px, 7vw, 88px) clamp(40px, 6vw, 72px); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: center; }
.hero-copy { display: grid; gap: 22px; }
.hero-meta { display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: var(--step--1); color: var(--ink-soft); }
.hero-meta b { color: var(--ink); font-family: var(--font-data); font-weight: 500; }
@media (max-width: 900px) { .hero .wrap { grid-template-columns: 1fr; } }

/* Assistant panel */
.assistant { background: var(--panel); color: var(--panel-fg); border-radius: 18px; padding: clamp(18px, 3vw, 26px); display: grid; gap: 14px; box-shadow: 0 30px 60px -30px rgba(10, 20, 22, 0.55); min-width: 0; }
.assistant-head { display: flex; align-items: center; gap: 10px; }
.assistant-head .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--kowhai); box-shadow: 0 0 0 4px color-mix(in srgb, var(--kowhai) 25%, transparent); }
.assistant-head strong { font: 600 1.1rem/1.2 var(--font-display); }
.assistant-head small { margin-left: auto; color: var(--panel-soft); font-size: 0.78rem; }
.log { display: grid; gap: 12px; max-height: 420px; overflow-y: auto; padding-right: 4px; scroll-behavior: smooth; }
.assistant.tall .log { max-height: min(62vh, 640px); min-height: 280px; }
.msg { padding: 12px 14px; border-radius: 12px; font-size: 0.97rem; line-height: 1.55; max-width: 92%; min-width: 0; overflow-wrap: anywhere; }
.msg p + p, .msg ul + p, .msg p + ul { margin-top: 0.6em; }
.msg ul { margin: 0; padding-left: 1.1em; }
.msg.bot { background: rgba(255, 255, 255, 0.06); border: 1px solid rgba(255, 255, 255, 0.08); }
.msg.user { background: var(--kowhai); color: #1b1a12; justify-self: end; }
.msg a { color: var(--kowhai); }
.msg.thinking { color: var(--panel-soft); font-style: italic; }
.sources { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.sources a { font-size: 0.8rem; text-decoration: none; padding: 4px 9px; border-radius: 999px; border: 1px solid rgba(255,255,255,.18); color: var(--panel-fg); }
.sources a:hover { border-color: var(--kowhai); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips button { background: transparent; color: var(--panel-fg); border: 1px solid rgba(255,255,255,.2); border-radius: 999px; padding: 7px 12px; font: 500 0.85rem/1.2 var(--font-body); cursor: pointer; text-align: left; }
.chips button:hover { border-color: var(--kowhai); color: #fff; }
.ask { display: flex; gap: 8px; background: rgba(255,255,255,.07); border: 1px solid rgba(255,255,255,.14); border-radius: 12px; padding: 6px; }
.ask textarea { flex: 1; min-width: 0; resize: none; background: transparent; border: 0; color: var(--panel-fg); font: 400 1rem/1.4 var(--font-body); padding: 9px 8px; max-height: 140px; }
.ask textarea::placeholder { color: var(--panel-soft); }
.ask textarea:focus { outline: none; }
.ask button { align-self: flex-end; background: var(--kowhai); color: #1b1a12; border: 0; border-radius: 9px; padding: 10px 16px; font: 700 0.9rem var(--font-body); cursor: pointer; }
.ask button:disabled { opacity: .5; cursor: wait; }
.fineprint { font-size: 0.76rem; color: var(--panel-soft); line-height: 1.45; }
.fineprint a { color: var(--panel-soft); }

/* Cards inside the chat (calculator results, forms) */
.card-calc { background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: 12px; padding: 14px; display: grid; gap: 8px; font-size: 0.9rem; }
.card-calc .big { font: 500 1.5rem/1.1 var(--font-data); color: var(--kowhai); }
.card-calc dl { display: grid; grid-template-columns: 1fr auto; gap: 4px 14px; margin: 0; }
.card-calc dd { margin: 0; font-family: var(--font-data); font-variant-numeric: tabular-nums; text-align: right; }
.card-calc dt { color: var(--panel-soft); }
.chat-form { display: grid; gap: 8px; background: rgba(255,255,255,.04); border: 1px solid rgba(255,255,255,.12); border-radius: 12px; padding: 14px; }
.chat-form label { font-size: 0.8rem; color: var(--panel-soft); display: grid; gap: 4px; }
.chat-form input, .chat-form textarea { background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); border-radius: 8px; color: var(--panel-fg); padding: 9px 10px; font: 400 0.95rem var(--font-body); }
.chat-form .consent { display: flex; gap: 8px; align-items: flex-start; color: var(--panel-fg); }
.chat-form button { justify-self: start; background: var(--kowhai); color: #1b1a12; border: 0; border-radius: 9px; padding: 9px 14px; font: 700 0.88rem var(--font-body); cursor: pointer; }

/* Pillars */
.pillars { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 40px); }
.pillar { display: grid; gap: 10px; align-content: start; padding-top: 18px; border-top: 2px solid var(--ink); }
.pillar .eyebrow { color: var(--ink-soft); }
.pillar p { color: var(--ink-soft); }
@media (max-width: 760px) { .pillars { grid-template-columns: 1fr; } }

/* Post grid */
.posts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px 24px; }
@media (max-width: 960px) { .posts { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .posts { grid-template-columns: 1fr; } }
.post-card { display: grid; grid-template-rows: auto 1fr; gap: 14px; text-decoration: none; color: inherit; min-width: 0; }
.post-card .thumb { aspect-ratio: 16 / 9; border-radius: var(--radius); overflow: hidden; background: var(--fern-tint); max-width: 100%; }
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s; }
.post-card:hover .thumb img { transform: scale(1.03); }
.post-card .thumb.type { display: grid; place-items: end start; padding: 18px; background: var(--panel); color: var(--panel-fg); }
.post-card .thumb.type span { font: 500 1.5rem/1.15 var(--font-display); max-width: 14ch; }
.post-card .meta { display: flex; gap: 10px; align-items: center; font-size: 0.8rem; color: var(--ink-soft); }
.post-card h3 { font-size: 1.25rem; margin-top: 6px; }
.post-card:hover h3 { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 4px; }
.post-card p { color: var(--ink-soft); font-size: 0.95rem; margin-top: 8px; }
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 32px; }
.filters button { border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); border-radius: 999px; padding: 7px 14px; font: 500 0.88rem var(--font-body); cursor: pointer; }
.filters button[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }

/* Tools */
.tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr)); gap: 16px; }
.tool-card { display: grid; gap: 10px; align-content: start; padding: 22px; border: 1.5px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; color: inherit; transition: border-color .15s, transform .15s; }
.tool-card:hover { border-color: var(--fern); transform: translateY(-2px); }
.tool-card .figure { font: 500 1.6rem/1 var(--font-data); color: var(--fern); }
.tool-card p { color: var(--ink-soft); font-size: 0.93rem; }
.tool-card .go { font-weight: 600; font-size: 0.9rem; color: var(--fern); }

/* Join band */
.join-band { background: var(--panel); color: var(--panel-fg); border-radius: 20px; padding: clamp(28px, 5vw, 56px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; align-items: center; }
.join-band .eyebrow { color: var(--kowhai); }
.join-band p { color: var(--panel-soft); }
@media (max-width: 800px) { .join-band { grid-template-columns: 1fr; } }

/* Forms (page level) */
.form { display: grid; gap: 14px; min-width: 0; }
.form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 560px) { .form .row { grid-template-columns: 1fr; } }
.form label { display: grid; gap: 6px; font-size: 0.85rem; font-weight: 600; }
.form input, .form textarea { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); font: 400 1rem var(--font-body); }
.join-band .form input { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2); color: var(--panel-fg); }
.join-band .form label { color: var(--panel-fg); }
.join-band .btn { background: var(--kowhai); border-color: var(--kowhai); color: #1b1a12; }
.form .consent { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; font-size: 0.85rem; }
.form .consent input { width: auto; margin-top: 4px; }
.form .status { font-size: 0.9rem; min-height: 1.4em; }
.form .status.ok { color: var(--good); }
.form .status.err { color: var(--bad); }
.join-band .form .status.ok { color: var(--kowhai); }
.hp { position: absolute; left: -5000px; width: 1px; height: 1px; overflow: hidden; }

/* Page header + prose */
.page-head { padding-block: clamp(40px, 6vw, 72px) 28px; display: grid; gap: 16px; }
.prose { max-width: 68ch; }
.prose > * + * { margin-top: 1.05em; }
.prose h2 { font-size: var(--step-2); margin-top: 1.8em; }
.prose h3 { font-size: var(--step-1); margin-top: 1.5em; }
.prose .lead { font-size: var(--step-1); line-height: 1.5; color: var(--ink-soft); }
.prose ul, .prose ol { padding-left: 1.2em; }
.prose li + li { margin-top: 0.4em; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin-block: 2em; }
.prose blockquote { margin-inline: 0; padding-left: 18px; border-left: 3px solid var(--fern); color: var(--ink-soft); }

/* Article */
.article-head { display: grid; gap: 18px; padding-block: clamp(36px, 6vw, 64px) 28px; max-width: 860px; }
.article-head h1 { font-size: clamp(2.1rem, 4.6vw, 3.3rem); }
.article-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; color: var(--ink-soft); font-size: 0.9rem; }
.article-hero { border-radius: 14px; overflow: hidden; margin-bottom: 40px; max-width: 980px; }
.article-layout { display: grid; grid-template-columns: minmax(0, 68ch) minmax(0, 300px); gap: clamp(28px, 5vw, 72px); align-items: start; }
.article-aside { position: sticky; top: 96px; display: grid; gap: 18px; }
.aside-box { border: 1.5px solid var(--line); border-radius: var(--radius); padding: 18px; display: grid; gap: 10px; background: var(--surface); }
.aside-box h3 { font-size: 1.05rem; }
.aside-box p { font-size: 0.9rem; color: var(--ink-soft); }
.aside-box ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; font-size: 0.92rem; }
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } .article-aside { position: static; } }

/* Calculator page */
.calc-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); gap: clamp(24px, 4vw, 48px); align-items: start; padding-bottom: 72px; }
@media (max-width: 900px) { .calc-layout { grid-template-columns: 1fr; } }
.calc-inputs { display: grid; gap: 26px; }
.calc-section { display: grid; gap: 14px; }
.calc-section h2 { font: 600 0.78rem/1 var(--font-body); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-soft); }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: end; }
@media (max-width: 560px) { .calc-grid { grid-template-columns: 1fr; } }
.field { display: grid; gap: 6px; font-size: 0.88rem; font-weight: 600; }
.field .hint { font-weight: 400; color: var(--ink-soft); }
.field .input { display: flex; align-items: center; border: 1.5px solid var(--line); border-radius: 10px; background: var(--surface); padding-inline: 12px; }
.field .input:focus-within { border-color: var(--fern); box-shadow: 0 0 0 3px var(--fern-tint); }
.field .input span { color: var(--ink-soft); font-family: var(--font-data); font-size: 0.95rem; }
.field input { flex: 1; min-width: 0; border: 0; background: transparent; color: var(--ink); padding: 11px 6px; font: 500 1.05rem var(--font-data); font-variant-numeric: tabular-nums; -moz-appearance: textfield; }
.field input:focus { outline: none; }
.field input::-webkit-inner-spin-button { -webkit-appearance: none; }
.calc-results { background: var(--surface); border: 1.5px solid var(--line); border-radius: 16px; padding: clamp(18px, 3vw, 28px); display: grid; gap: 18px; position: sticky; top: 92px; }
@media (max-width: 900px) { .calc-results { position: static; } }
.highlights { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr)); gap: 12px; }
.highlight { background: var(--panel); color: var(--panel-fg); border-radius: 12px; padding: 16px 18px; display: grid; gap: 6px; }
.highlight small { font-size: 0.8rem; opacity: 0.8; }
.highlight b { font: 500 clamp(1.6rem, 3.4vw, 2.1rem)/1 var(--font-data); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.highlight.good b { color: var(--kowhai); }
.highlight.bad b { color: #ffb4a8; }
.results-rows { display: grid; margin: 0; }
.results-rows div { display: flex; justify-content: space-between; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 0.93rem; }
.results-rows div:last-child { border-bottom: 0; }
.results-rows dt { color: var(--ink-soft); }
.results-rows dd { margin: 0; font: 500 1rem var(--font-data); font-variant-numeric: tabular-nums; text-align: right; }
.results-rows dd.good { color: var(--good); }
.results-rows dd.bad { color: var(--bad); }
.verdict { padding: 14px 16px; border-radius: 10px; font-size: 0.93rem; line-height: 1.55; background: var(--fern-tint); }
.verdict.bad { background: color-mix(in srgb, var(--bad) 14%, var(--surface)); }
.calc-note { font-size: 0.85rem; color: var(--ink-soft); }

/* Footer */
.site-foot { border-top: 1px solid var(--line); padding-block: 48px; margin-top: 40px; font-size: 0.9rem; color: var(--ink-soft); }
.site-foot .wrap { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
.site-foot h4 { margin: 0 0 10px; font: 600 0.75rem/1 var(--font-body); letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink); }
.site-foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.site-foot a { color: var(--ink-soft); text-decoration: none; }
.site-foot a:hover { color: var(--fern); text-decoration: underline; }
@media (max-width: 760px) { .site-foot .wrap { grid-template-columns: 1fr 1fr; } }

/* Floating assistant launcher (non-home pages) */
.launcher { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(16px + env(safe-area-inset-bottom, 0px)); z-index: 30; background: var(--panel); color: var(--panel-fg); border: 0; border-radius: 999px; padding: 12px 18px 12px 14px; display: flex; gap: 10px; align-items: center; font: 600 0.92rem var(--font-body); cursor: pointer; box-shadow: 0 14px 30px -12px rgba(10, 20, 22, 0.6); }
.launcher .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--kowhai); }
.drawer { position: fixed; right: max(16px, env(safe-area-inset-right, 0px)); bottom: calc(80px + env(safe-area-inset-bottom, 0px)); width: min(420px, calc(100vw - 32px)); z-index: 31; }
.drawer .assistant { max-height: calc(100vh - 120px); }
.drawer .close { background: none; border: 0; color: var(--panel-soft); font-size: 1.3rem; cursor: pointer; line-height: 1; padding: 0 0 0 8px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}