/* DevBX public marketing site. Dark, monochrome, Inter — mirrors the app
   (server/static/index.html tokens). Zero-JS render; content is fully crawlable. */
:root {
  color-scheme: dark;
  --bg: #0a0a0a; --panel: #0e0e0e; --elev: #151515; --elev2: #1c1c1c;
  --border: #232323; --border2: #2e2e2e;
  --fg: #ededed; --fg2: #9b9b9b; --fg3: #6a6a6a;
  --accent: #3b82f6; --green: #3ecf8e; --red: #ff5d5d; --amber: #f5a623;
  --r: 10px; --r-sm: 7px; --r-lg: 16px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --maxw: 1080px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--sans); margin: 0; background: var(--bg); color: var(--fg);
  font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; letter-spacing: -0.011em; }
/* atmospheric depth — subtle glows so it isn't flat black */
body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(1100px 560px at 50% -240px, rgba(62,207,142,.07), transparent 70%),
    radial-gradient(900px 480px at 100% -120px, rgba(59,130,246,.05), transparent 62%); }
a { color: var(--fg); text-decoration: none; }
a:hover { color: #fff; }
svg { display: inline-block; vertical-align: -0.18em; flex-shrink: 0; }
img { max-width: 100%; }
h1, h2, h3, h4 { letter-spacing: -0.025em; line-height: 1.13; margin: 0 0 .5em; text-wrap: balance; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); font-weight: 700; }
h2 { font-size: clamp(1.5rem, 3vw, 2.05rem); font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }
p { margin: 0 0 1em; color: var(--fg2); }
code { background: var(--elev2); padding: .1em .4em; border-radius: 5px; font-family: var(--mono); font-size: .88em; color: var(--fg); }
::selection { background: #2a3a55; color: #fff; }

/* ---- header ---- */
.m-head { position: sticky; top: 0; z-index: 30; display: flex; align-items: center; gap: 24px;
  height: 60px; padding: 0 24px; border-bottom: 1px solid var(--border);
  background: rgba(10,10,10,.8); backdrop-filter: blur(10px); }
.m-brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 600; font-size: 17px; letter-spacing: -0.02em; color: var(--fg); }
.m-nav { display: flex; gap: 22px; font-size: 14.5px; }
.m-nav a { color: var(--fg2); }
.m-nav a:hover { color: var(--fg); }
.m-head-cta { margin-left: auto; display: flex; align-items: center; gap: 16px; }
.m-link { color: var(--fg2); font-size: 14.5px; }
.m-link:hover { color: var(--fg); }
.m-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  background: var(--fg); color: #0a0a0a; font-weight: 550; font-size: 14.5px;
  padding: 9px 16px; border-radius: var(--r-sm); border: 1px solid var(--fg); transition: opacity .12s, transform .12s; }
.m-btn:hover { color: #0a0a0a; opacity: .9; }
.m-btn-lg { font-size: 16px; padding: 13px 24px; }
.m-btn-ghost { background: transparent; color: var(--fg); border-color: var(--border2); }
.m-btn-ghost:hover { color: #fff; border-color: var(--fg3); }

/* ---- layout primitives ---- */
main { display: block; }
.m-sec { max-width: var(--maxw); margin: 0 auto; padding: 56px 24px; }
.m-sec.narrow { max-width: 760px; }
.m-crumbs { max-width: var(--maxw); margin: 0 auto; padding: 18px 24px 0; font-size: 13px; color: var(--fg3); }
.m-crumbs a { color: var(--fg3); } .m-crumbs a:hover { color: var(--fg2); }
.m-crumbs .sep { margin: 0 7px; opacity: .5; }
.m-eyebrow { text-transform: uppercase; letter-spacing: .12em; font-size: 12px; font-weight: 600; color: var(--green); margin-bottom: 14px; }
.m-lead { font-size: 1.15rem; color: var(--fg2); max-width: 60ch; text-wrap: pretty; }
.m-updated { font-size: 13px; color: var(--fg3); margin-top: 8px; }

/* ---- hero ---- */
/* default (content pages): a compact centred hero */
.m-hero { max-width: var(--maxw); margin: 0 auto; padding: 52px 24px 40px; text-align: center; }
.m-hero h1 { max-width: 22ch; margin-inline: auto; }
/* the home hero is the big, punchy one */
.m-hero.home { padding: clamp(48px, 8vw, 104px) 24px 60px; }
.m-hero.home h1 { max-width: 16ch; }
.m-hero .m-lead { margin: 22px auto 0; font-size: 1.25rem; }
.m-hero-cta { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; margin-top: 32px; }
.m-hero-note { margin-top: 18px; font-size: 13.5px; color: var(--fg3); }
.m-kbd { color: var(--fg); font-weight: 550; }

/* ---- pills / badges ---- */
.m-pills { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; margin-top: 30px; }
.m-pill { font-size: 13px; padding: 6px 13px; border-radius: 999px; border: 1px solid var(--border); color: var(--fg2); background: var(--panel); display: inline-flex; align-items: center; gap: 7px; }
.m-pill.ok { color: var(--green); border-color: #1d3a2c; }

/* ---- hero product mockup (pure CSS) ---- */
.m-hero-visual { max-width: 880px; margin: 60px auto 0; }
.m-win { border: 1px solid var(--border2); border-radius: 14px; overflow: hidden; background: var(--panel); box-shadow: 0 30px 90px rgba(0,0,0,.6); text-align: left; }
.m-win-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--border); background: var(--elev); }
.m-win-bar .d { width: 11px; height: 11px; border-radius: 50%; background: #303030; }
.m-win-url { margin-left: 14px; font-family: var(--mono); font-size: 12px; color: var(--fg3); display: inline-flex; align-items: center; gap: 6px; }
.m-win-url svg { color: var(--green); }
.m-win-body { display: grid; grid-template-columns: 5fr 6fr; min-height: 290px; }
.m-win-chat { padding: 16px; border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 10px; }
.m-msg { font-size: 13px; line-height: 1.45; padding: 9px 12px; border-radius: 11px; max-width: 94%; }
.m-msg.user { align-self: flex-end; background: var(--elev2); color: var(--fg); border-bottom-right-radius: 3px; }
.m-msg.bot { align-self: flex-start; background: transparent; border: 1px solid var(--border); color: var(--fg2); border-bottom-left-radius: 3px; }
.m-msg .ok { color: var(--green); font-weight: 500; }
.m-win-preview { padding: 18px; background: #0c0c0d; display: flex; flex-direction: column; gap: 12px; }
.m-pv-top { display: flex; align-items: center; justify-content: space-between; }
.m-pv-title { font-weight: 600; font-size: 14px; color: var(--fg); }
.m-pv-live { font-size: 11px; color: var(--green); border: 1px solid #1d3a2c; border-radius: 999px; padding: 2px 9px; display: inline-flex; align-items: center; gap: 6px; }
.m-pv-live .ld { width: 6px; height: 6px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(62,207,142,.18); }
.m-pv-row { display: flex; gap: 10px; }
.m-pv-stat { flex: 1; border: 1px solid var(--border); border-radius: 9px; background: var(--panel); padding: 11px 13px; }
.m-pv-stat .n { font-size: 18px; font-weight: 700; color: var(--fg); letter-spacing: -0.02em; }
.m-pv-stat .l { font-size: 11px; color: var(--fg3); }
.m-pv-list { border: 1px solid var(--border); border-radius: 9px; background: var(--panel); overflow: hidden; }
.m-pv-li { display: flex; align-items: center; gap: 10px; padding: 9px 12px; border-bottom: 1px solid var(--border); }
.m-pv-li:last-child { border-bottom: 0; }
.m-pv-av { width: 22px; height: 22px; border-radius: 50%; background: linear-gradient(135deg, var(--elev2), #2a2a2a); flex: none; }
.m-pv-ln { height: 7px; border-radius: 4px; background: var(--elev2); }
.m-pv-tag { margin-left: auto; height: 16px; width: 44px; border-radius: 999px; background: rgba(62,207,142,.14); border: 1px solid #1d3a2c; flex: none; }
@media (max-width: 640px) { .m-win-body { grid-template-columns: 1fr; } .m-win-chat { border-right: 0; border-bottom: 1px solid var(--border); } }

/* ---- feature grid / cards ---- */
.m-grid { display: grid; gap: 18px; }
.m-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.m-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.m-card { border: 1px solid var(--border); border-radius: var(--r); background: var(--panel); padding: 22px; transition: border-color .16s, background .16s, transform .16s; }
.m-card h3 { margin-bottom: 8px; }
.m-card p { margin: 0; font-size: 15px; line-height: 1.6; }
.m-card:hover { border-color: var(--border2); background: var(--elev); }
a.m-card { display: block; }
a.m-card:hover { transform: translateY(-2px); }
a.m-card:hover .m-cardlink { color: var(--fg); }
.m-card .m-ico { width: 36px; height: 36px; border-radius: 9px; background: linear-gradient(180deg, var(--elev2), var(--elev)); border: 1px solid var(--border2); display: inline-flex; align-items: center; justify-content: center; margin-bottom: 16px; color: var(--green); }
.m-cardlink { color: var(--fg2); font-size: 14px; display: inline-block; margin-top: 14px; font-weight: 500; }
.m-cardlink:hover { color: var(--fg); }

/* ---- features page ---- */
.m-fsec { padding-top: 40px; padding-bottom: 40px; }
.m-fgroup { margin-bottom: 26px; }
.m-fgroup .m-ico { margin-bottom: 14px; }
.m-fgroup h2 { text-align: left; margin: 0; }
.m-fsub { color: var(--fg2); max-width: 62ch; margin: 8px 0 0; }
.m-fi { display: flex; align-items: flex-start; gap: 9px; font-size: 1.02rem; margin: 0 0 8px; }
.m-fi svg { color: var(--green); margin-top: 4px; flex: none; }

/* ---- section heads ---- */
.m-sec > h2 { text-align: center; }
.m-sec > .m-sub { text-align: center; color: var(--fg2); max-width: 60ch; margin: 0 auto 36px; }
/* article prose: headings read left-aligned, not centered */
.m-sec.m-prose > h2, .m-sec.m-prose > h3 { text-align: left; }

/* ---- comparison table ---- */
.m-tablewrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r); }
.m-table { width: 100%; border-collapse: collapse; font-size: 14px; min-width: 640px; }
.m-table th, .m-table td { text-align: left; padding: 12px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.m-table thead th { background: var(--elev); color: var(--fg); font-weight: 600; font-size: 13.5px; position: sticky; top: 0; }
.m-table tbody th { color: var(--fg2); font-weight: 500; white-space: nowrap; }
.m-table tr:last-child td, .m-table tr:last-child th { border-bottom: 0; }
.m-table td.yes { color: var(--green); }
.m-table td.no { color: var(--red); }
.m-table td.maybe { color: var(--amber); }
.m-table .m-note { color: var(--fg3); font-size: 13px; }
.m-table tbody tr:hover { background: rgba(255,255,255,.012); }
.m-table tr.me { background: rgba(62,207,142,.08); box-shadow: inset 3px 0 0 var(--green); }
.m-table tr.me:hover { background: rgba(62,207,142,.1); }
.m-table tr.me th[scope="row"], .m-table tr.me > th:first-child { color: var(--fg); font-weight: 600; }
.m-table tr.me td { color: var(--green); }
/* emphasised product column (DevBX) on head-to-head tables */
.m-table thead th.emph { color: var(--green); }
.m-table.emph-2 tbody td:nth-child(2), .m-table.emph-2 thead th:nth-child(2),
.m-table.emph-6 tbody td:nth-child(6), .m-table.emph-6 thead th:nth-child(6) { background: rgba(62,207,142,.06); box-shadow: inset 1px 0 0 rgba(62,207,142,.18), inset -1px 0 0 rgba(62,207,142,.18); }

/* ---- prose ---- */
.m-prose { max-width: 760px; margin: 0 auto; }
.m-prose h2 { margin-top: 1.6em; }
.m-prose h3 { margin-top: 1.4em; }
.m-prose ul, .m-prose ol { color: var(--fg2); padding-left: 1.3em; }
.m-prose li { margin: .4em 0; }
.m-prose strong { color: var(--fg); }
.m-prose a:not(.m-btn) { color: #fff; text-decoration: underline; text-underline-offset: 2px; text-decoration-color: var(--fg3); }

/* ---- quote ---- */
.m-quote { margin: 0; border: 1px solid var(--border); border-radius: var(--r); background: var(--panel); padding: 20px 22px; }
.m-quote blockquote { margin: 0; font-size: 1.02rem; color: var(--fg); line-height: 1.55; }
.m-quote blockquote::before { content: "“"; color: var(--fg3); font-size: 1.4em; line-height: 0; vertical-align: -0.25em; margin-right: 2px; }
.m-quote figcaption { margin-top: 12px; font-size: 13px; color: var(--fg3); }
.m-q-src { color: var(--fg3); text-decoration: underline; }
.m-quotes { display: grid; gap: 18px; max-width: 900px; margin: 0 auto; }
@media (min-width: 760px) { .m-quotes.two { grid-template-columns: 1fr 1fr; } }

/* ---- honesty box ---- */
.m-honest { border: 1px solid var(--border2); border-radius: var(--r); background: var(--elev); padding: 20px 22px; margin: 28px 0; }
.m-honest h3 { margin-bottom: 6px; font-size: 1.05rem; }
.m-honest p { margin: 0; font-size: 15px; }

/* ---- verdict cards ---- */
.m-verdict { display: grid; gap: 16px; grid-template-columns: 1fr 1fr; }
.m-verdict .m-card h3 { font-size: 1.05rem; }

/* ---- FAQ ---- */
.m-faq { max-width: 760px; margin: 0 auto; }
.m-faq h2 { text-align: center; margin-bottom: 28px; }
.m-faq details { border-bottom: 1px solid var(--border); padding: 4px 0; }
.m-faq summary { cursor: pointer; padding: 16px 0; font-weight: 550; font-size: 16px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.m-faq summary::-webkit-details-marker { display: none; }
.m-faq summary::after { content: "+"; color: var(--fg3); font-weight: 400; font-size: 22px; line-height: 1; }
.m-faq details[open] summary::after { content: "–"; }
.m-faq-a { padding: 0 0 18px; color: var(--fg2); font-size: 15px; }
.m-faq-a a { color: #fff; text-decoration: underline; }

/* ---- pricing ---- */
.m-plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; align-items: stretch; }
.m-plan { position: relative; border: 1px solid var(--border); border-radius: var(--r-lg); background: var(--panel); padding: 26px; display: flex; flex-direction: column; transition: border-color .16s, transform .16s; }
.m-plan:hover { border-color: var(--border2); transform: translateY(-2px); }
.m-plan.feat { border-color: rgba(62,207,142,.4); background: linear-gradient(180deg, rgba(62,207,142,.05), transparent 40%), var(--elev); box-shadow: 0 0 0 1px rgba(62,207,142,.25), 0 12px 40px rgba(0,0,0,.4); }
.m-plan .tag { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--fg3); }
.m-plan.feat .tag { color: var(--green); }
.m-plan .price { font-size: 2.4rem; font-weight: 700; margin: 10px 0 2px; letter-spacing: -0.03em; }
.m-plan .price small { font-size: 1rem; font-weight: 400; color: var(--fg3); }
.m-plan .desc { color: var(--fg2); font-size: 14px; min-height: 2.4em; margin-bottom: 18px; }
.m-plan ul { list-style: none; padding: 0; margin: 0 0 22px; display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.m-plan li { display: flex; gap: 9px; color: var(--fg2); }
.m-plan li svg { color: var(--green); margin-top: 2px; }
.m-plan .m-btn { width: 100%; margin-top: auto; }
.m-plan.feat .m-btn { background: var(--fg); }
.m-plan:not(.feat) .m-btn { background: transparent; color: var(--fg); border-color: var(--border2); }
.m-plan:not(.feat) .m-btn:hover { border-color: var(--fg3); color: #fff; }

/* ---- big CTA ---- */
.m-cta { max-width: calc(var(--maxw) - 48px); margin: 64px auto; padding: 60px 32px; text-align: center; border: 1px solid var(--border); border-radius: var(--r-lg); background: radial-gradient(700px 320px at 50% -40px, rgba(62,207,142,.08), transparent 70%), var(--panel); }
.m-cta h2 { max-width: 20ch; margin-inline: auto; }
.m-cta p { max-width: 56ch; margin-inline: auto; }
.m-cta-row { display: flex; gap: 16px; justify-content: center; align-items: center; flex-wrap: wrap; margin-top: 24px; }
.m-cta-note { margin-top: 18px; font-size: 13px; color: var(--fg3); }

/* ---- listicle ---- */
.m-rank { display: grid; gap: 18px; max-width: 820px; margin: 0 auto; }
.m-rankitem { border: 1px solid var(--border); border-radius: var(--r); background: var(--panel); padding: 22px 24px; }
.m-rankitem.lead { border-color: #1d3a2c; background: rgba(62,207,142,.04); }
.m-rankhead { display: flex; align-items: baseline; gap: 12px; }
.m-rankhead .num { font-size: 14px; color: var(--fg3); font-variant-numeric: tabular-nums; }
.m-rankhead h3 { margin: 0; }
.m-rankhead .pick { margin-left: auto; font-size: 12px; color: var(--green); border: 1px solid #1d3a2c; padding: 3px 9px; border-radius: 999px; }
.m-rankitem .best { font-size: 13px; color: var(--fg3); margin: 8px 0 0; }
.m-rankitem .best b { color: var(--fg2); font-weight: 550; }

/* ---- tools ---- */
.m-tool { max-width: 720px; margin: 0 auto; }
.m-toolform { display: flex; gap: 10px; margin: 24px 0; flex-wrap: wrap; }
.m-input { flex: 1; min-width: 240px; height: 46px; padding: 0 14px; background: #0c0c0d; border: 1px solid var(--border2); border-radius: var(--r-sm); color: var(--fg); font: inherit; font-size: 15px; outline: none; }
.m-input:focus { border-color: #4b4b4b; box-shadow: 0 0 0 3px rgba(255,255,255,.05); }
.m-toolout { border: 1px solid var(--border); border-radius: var(--r); background: var(--panel); padding: 20px; margin-top: 18px; font-size: 15px; display: none; }
.m-toolout.show { display: block; }
.m-toolout .ok { color: var(--green); } .m-toolout .bad { color: var(--red); } .m-toolout .warn { color: var(--amber); }
.m-toolout table { width: 100%; border-collapse: collapse; font-size: 14px; }
.m-toolout td { padding: 7px 0; border-bottom: 1px solid var(--border); }
.m-toolout td:last-child { text-align: right; font-variant-numeric: tabular-nums; }
.m-range { width: 100%; accent-color: var(--green); }
.m-calcrow { display: flex; align-items: center; gap: 14px; margin: 14px 0; }
.m-calcrow label { width: 210px; font-size: 14px; color: var(--fg2); flex: none; }
.m-calcrow span:last-child { font-variant-numeric: tabular-nums; color: var(--fg); font-weight: 600; }
.m-calcout { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.m-calcout .l { font-size: 12.5px; color: var(--fg3); min-height: 2.6em; }
.m-bignum { font-size: 1.95rem; font-weight: 700; letter-spacing: -0.03em; }
.m-bignum.save { color: var(--green); }
.m-bignum.warn { color: var(--amber); }
@media (max-width: 640px) { .m-calcout { grid-template-columns: 1fr 1fr; } .m-calcrow { flex-wrap: wrap; } .m-calcrow label { width: 100%; } }

/* ---- misc ---- */
.m-hr { border: 0; border-top: 1px solid var(--border); max-width: var(--maxw); margin: 0 auto; }
.m-center { text-align: center; }
.muted { color: var(--fg3); }

/* ---- footer ---- */
.m-foot { border-top: 1px solid var(--border); background: var(--panel); margin-top: 40px; }
.m-foot-grid { max-width: var(--maxw); margin: 0 auto; padding: 56px 24px 32px; display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr 1fr; gap: 30px; }
.m-foot-brand p { font-size: 13.5px; color: var(--fg3); max-width: 30ch; }
.m-foot-entity { margin-top: 10px; }
.m-foot-mail a { color: var(--fg2); }
.m-foot-col h4 { font-size: 13px; color: var(--fg); margin-bottom: 14px; text-transform: uppercase; letter-spacing: .08em; }
.m-foot-col a { display: block; color: var(--fg3); font-size: 13.5px; margin-bottom: 9px; }
.m-foot-col a:hover { color: var(--fg); }
.m-foot-bar { max-width: var(--maxw); margin: 0 auto; padding: 20px 24px; border-top: 1px solid var(--border); display: flex; justify-content: space-between; font-size: 13px; color: var(--fg3); flex-wrap: wrap; gap: 8px; }

/* ---- responsive ---- */
@media (max-width: 860px) {
  .m-nav { display: none; }
  .m-grid.cols-3, .m-grid.cols-2, .m-plans, .m-verdict { grid-template-columns: 1fr; }
  .m-foot-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .m-foot-grid { grid-template-columns: 1fr; }
  .m-head { gap: 12px; padding: 0 16px; }
  .m-sec { padding: 40px 18px; }
}