/* Lintel — public website. Colors come from the app: charcoal ink, steel panels,
   amber accent (#F2A900), on a warm-concrete ground. One reading column, wide
   steel bands for the hero and the walk-through. Light by default, with a dark
   mode that matches the app. */
:root {
  --ground: #F4F2EC;        /* warm concrete page ground */
  --card: #FFFFFF;
  --ink: #15171B;           /* the app's charcoal */
  --muted: #5B626B;
  --line: #E4DFD4;
  --steel: #1E2127;         /* the app's panel — hero + bands */
  --steel-soft: #ECEAE3;    /* soft band on the light page */
  --amber: #F2A900;
  --amber-deep: #C98A00;
  --amber-soft: #FBE9C2;
  --on-steel: #F4F2EC;
  --on-steel-muted: #A8AEB8;
  --f-display: "Archivo", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --f-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) {
  --ground: #15171B; --card: #23272E; --ink: #E9EBEE; --muted: #8A909B; --line: #363B45;
  --steel: #0F1114; --steel-soft: #1E2127; --amber: #F2A900; --amber-deep: #F2A900;
  --amber-soft: #3A2F16; --on-steel: #E9EBEE; --on-steel-muted: #8A909B; color-scheme: dark; } }
:root[data-theme="dark"] {
  --ground: #15171B; --card: #23272E; --ink: #E9EBEE; --muted: #8A909B; --line: #363B45;
  --steel: #0F1114; --steel-soft: #1E2127; --amber: #F2A900; --amber-deep: #F2A900;
  --amber-soft: #3A2F16; --on-steel: #E9EBEE; --on-steel-muted: #8A909B; color-scheme: dark; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.6 var(--f-body); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--amber-deep); }
a:hover { color: var(--ink); }
:focus-visible { outline: 3px solid var(--amber); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--f-display); font-weight: 800; line-height: 1.1; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: clamp(2.2rem, 5.2vw, 3.7rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.4rem); }
h3 { font-size: 1.18rem; font-weight: 700; }
p { margin: 0; }
.wrap { max-width: 1080px; margin: 0 auto; padding-inline: 20px; }
.narrow { max-width: 720px; }
.eyebrow { font-family: var(--f-mono); font-size: .78rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--amber-deep); }
.lead { font-size: 1.16rem; color: var(--muted); max-width: 60ch; }

/* Announcement bar */
.beta-bar { background: var(--steel); color: var(--on-steel); font-size: .92rem; }
.beta-bar .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 4px 14px; padding-block: 8px; text-align: center; }
.beta-bar a { color: var(--amber); font-weight: 700; text-underline-offset: 3px; }
.beta-bar a:hover { color: #fff; }

/* Header */
.site-head { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--ground) 90%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 10px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--f-display); font-weight: 800; font-size: 1.2rem; flex: none; letter-spacing: -0.02em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.nav { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; }
.nav a { text-decoration: none; color: var(--ink); font-size: .95rem; font-weight: 500; }
.nav a:hover { color: var(--amber-deep); }
.nav a.btn { color: var(--ink); }
.nav .signin { font-weight: 600; }
@media (max-width: 680px) { .nav .hide-sm { display: none; } }
@media (max-width: 1060px) { .nav .hide-md { display: none; } }

.btn { display: inline-block; background: var(--amber); color: var(--ink); text-decoration: none; font-weight: 700; padding: 12px 20px; border-radius: 12px; border: 0; font: 700 1rem var(--f-body); cursor: pointer; }
.btn:hover { background: var(--amber-deep); color: var(--ink); }
.btn.ghost { background: transparent; color: var(--ink); border: 2px solid var(--line); }
.btn.ghost:hover { background: var(--card); border-color: var(--amber); color: var(--ink); }
.btn.on-steel.ghost { color: var(--on-steel); border-color: rgba(255,255,255,.28); }
.btn.on-steel.ghost:hover { background: rgba(255,255,255,.08); border-color: var(--amber); }

/* Hero (dark steel) */
.hero { position: relative; overflow: hidden; background: var(--steel); color: var(--on-steel); padding-block: 72px 0; }
.hero .eyebrow { color: var(--amber); }
.hero .lead { color: var(--on-steel-muted); }
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 48px; align-items: center; position: relative; z-index: 1; }
.hero h1 { color: #fff; }
.hero .copy { display: grid; gap: 20px; padding-bottom: 64px; }
.hero .actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; }
.hero .shot-wrap { justify-self: center; align-self: end; padding-bottom: 0; }
/* the lintel "beam" that caps the hero */
.beam { display: block; height: 10px; background: var(--amber); }
.hero-sub { font-family: var(--f-mono); font-size: .82rem; color: var(--on-steel-muted); letter-spacing: .02em; }
@media (max-width: 820px) { .hero .wrap { grid-template-columns: 1fr; gap: 28px; } .hero .copy { padding-bottom: 8px; } .hero .shot-wrap { padding-bottom: 32px; } }

/* Sections + bands */
section { padding-block: 76px; }
.band { background: var(--steel-soft); }
.band.steel { background: var(--steel); color: var(--on-steel); }
.band.steel h2, .band.steel h3 { color: #fff; }
.band.steel .lead, .band.steel p { color: var(--on-steel-muted); }
.band.steel .eyebrow { color: var(--amber); }
.section-head { display: grid; gap: 12px; margin-bottom: 40px; max-width: 760px; }

/* Thesis / pitch */
.thesis { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 44px; align-items: start; }
.thesis blockquote { margin: 0; font-family: var(--f-display); font-weight: 700; font-size: clamp(1.5rem, 3vw, 2.05rem); line-height: 1.25; color: var(--ink); border-left: 4px solid var(--amber); padding-left: 22px; }
.thesis .body { display: grid; gap: 14px; color: var(--muted); }
@media (max-width: 760px) { .thesis { grid-template-columns: 1fr; gap: 24px; } }

/* How it works — numbered */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; counter-reset: step; }
.steps li { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px 20px; display: grid; gap: 8px; align-content: start; counter-increment: step; }
.steps li::before { content: counter(step); font-family: var(--f-display); font-weight: 800; font-size: 1.05rem; width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center; background: var(--amber); color: var(--ink); }
.steps h3 { font-size: 1.08rem; }
.steps p { color: var(--muted); font-size: .98rem; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }

/* Phone mockups */
.phone { width: 100%; max-width: 300px; aspect-ratio: 300 / 620; background: #0C0D10; border-radius: 40px; padding: 12px; box-shadow: 0 24px 60px rgba(0,0,0,.33); border: 1px solid rgba(255,255,255,.08); }
.phone .screen { width: 100%; height: 100%; border-radius: 30px; overflow: hidden; background: #15171B; color: #E9EBEE; display: flex; flex-direction: column; font-size: 12px; }
.scr-top { background: #1E2127; padding: 14px 14px 10px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid #363B45; }
.scr-top b { font-family: var(--f-display); font-weight: 800; color: #fff; font-size: 14px; letter-spacing: -.01em; }
.scr-chip { font-family: var(--f-mono); font-size: 9px; color: #15171B; background: #F2A900; padding: 3px 7px; border-radius: 6px; font-weight: 700; }
.scr-body { padding: 12px; display: grid; gap: 9px; overflow: hidden; flex: 1; align-content: start; }
.scr-card { background: #23272E; border: 1px solid #363B45; border-radius: 11px; padding: 10px 11px; display: grid; gap: 5px; }
.scr-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.scr-row .k { color: #8A909B; }
.scr-row .v { font-family: var(--f-mono); color: #E9EBEE; }
.scr-row .v.amber { color: #F2A900; font-weight: 700; }
.scr-title { font-weight: 700; color: #fff; font-size: 13px; }
.scr-sub { color: #8A909B; font-size: 10.5px; }
.scr-pill { display: inline-block; font-size: 9.5px; font-weight: 700; padding: 2px 8px; border-radius: 999px; }
.scr-pill.active { background: #16351f; color: #34D399; }
.scr-pill.signed { background: #2a2410; color: #F2A900; }
.scr-line { height: 7px; border-radius: 4px; background: #363B45; }
.scr-nav { display: flex; justify-content: space-around; padding: 9px 6px; border-top: 1px solid #363B45; background: #1E2127; color: #8A909B; font-size: 9px; }
.scr-nav .on { color: #F2A900; }
.scr-btn { background: #F2A900; color: #15171B; font-weight: 700; text-align: center; padding: 9px; border-radius: 9px; font-size: 12px; }

/* Screenshot strip */
.shots { display: grid; grid-auto-flow: column; grid-auto-columns: minmax(230px, 1fr); gap: 26px; overflow-x: auto; padding: 4px 4px 18px; scroll-snap-type: x mandatory; justify-content: start; }
.shots figure { margin: 0; scroll-snap-align: start; display: grid; gap: 12px; justify-items: center; align-content: start; }
.shots figcaption { font-size: .96rem; color: var(--muted); text-align: center; max-width: 30ch; }
.shots figcaption b { color: var(--ink); display: block; font-family: var(--f-display); }
.band.steel .shots figcaption { color: var(--on-steel-muted); }
.band.steel .shots figcaption b { color: #fff; }
@media (max-width: 640px) { .shots { grid-auto-columns: 78%; } }

/* Real app screenshots (phone-ratio JPGs) */
.appshot { width: 100%; max-width: 290px; height: auto; display: block; border-radius: 30px; border: 1px solid rgba(255,255,255,0.12); box-shadow: 0 22px 55px rgba(0,0,0,0.42); background: #15171B; }
.hero .appshot { max-width: 290px; }
.shots figure .appshot { max-width: 100%; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .appshot { border-color: var(--line); } }

/* Features grid */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px 34px; }
.feature { display: grid; gap: 7px; align-content: start; }
.feature h3 { display: flex; gap: 10px; align-items: baseline; }
.feature h3 span { color: var(--amber-deep); font-family: var(--f-mono); font-size: .95rem; }
.feature p { color: var(--muted); font-size: .98rem; }
@media (max-width: 900px) { .features { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .features { grid-template-columns: 1fr; } }

/* Who it's for */
.audience { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.audience div { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; display: grid; gap: 6px; }
.audience h3 { font-size: 1.08rem; }
.audience p { color: var(--muted); font-size: .97rem; }
@media (max-width: 820px) { .audience { grid-template-columns: 1fr; } }

/* Native / "on your iPhone" split */
.onetap { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 48px; align-items: center; }
.onetap .copy { display: grid; gap: 12px; }
.onetap .copy p:not(.eyebrow) { color: var(--muted); max-width: 56ch; }
.band.steel .onetap .copy p:not(.eyebrow) { color: var(--on-steel-muted); }
.onetap ul { margin: 6px 0 0; padding-left: 0; list-style: none; display: grid; gap: 10px; }
.onetap li { display: flex; gap: 10px; align-items: baseline; }
.onetap li span:first-child { color: var(--amber); font-family: var(--f-mono); flex: none; }
.onetap li span:last-child { flex: 1; min-width: 0; }
.onetap li b { color: #fff; }
@media (max-width: 820px) { .onetap { grid-template-columns: 1fr; gap: 28px; justify-items: center; } .onetap .copy { justify-items: start; } }

/* Trust */
.trust { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.trust div { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; display: grid; gap: 6px; }
.trust h3 { font-size: 1.05rem; }
.trust p { color: var(--muted); font-size: .97rem; }
@media (max-width: 900px) { .trust { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .trust { grid-template-columns: 1fr; } }

/* Pricing */
.plans { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; max-width: 620px; margin: 0 auto; }
.plan { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 24px 22px; text-align: center; display: grid; gap: 4px; align-content: start; }
.plan.featured { border: 2px solid var(--amber); }
.plan .tier { font-family: var(--f-mono); font-size: .76rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.plan.featured .tier { color: var(--amber-deep); }
.plan .amt { font-size: 2.1rem; font-weight: 800; color: var(--ink); line-height: 1.1; margin-top: 6px; }
.plan .amt span { font-size: .95rem; font-weight: 600; color: var(--muted); }
.plan .sub { font-size: .85rem; color: var(--muted); }
.plan-includes { list-style: none; margin: 24px auto 0; padding: 0; max-width: 460px; display: grid; gap: 9px; }
.plan-includes li { position: relative; padding-left: 26px; color: var(--ink); font-size: .98rem; }
.plan-includes li::before { content: "\2713"; position: absolute; left: 0; color: var(--amber-deep); font-weight: 800; }
.plan-cta { display: flex; justify-content: center; margin-top: 26px; }
@media (max-width: 560px) { .plans { grid-template-columns: 1fr; } }

/* CTA */
.cta-box { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: clamp(28px, 5vw, 48px); text-align: center; display: grid; gap: 16px; justify-items: center; }
.cta-box .actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; margin-top: 4px; }
.cta-box .note { font-family: var(--f-mono); font-size: .82rem; color: var(--muted); }

/* Footer */
.site-foot { border-top: 1px solid var(--line); padding-block: 34px; color: var(--muted); font-size: .92rem; background: var(--ground); }
.site-foot .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; justify-content: space-between; }
.site-foot nav { display: flex; gap: 18px; flex-wrap: wrap; }
.site-foot a { color: var(--muted); text-decoration: none; }
.site-foot a:hover { color: var(--amber-deep); }
.site-foot .brand-foot { display: flex; align-items: center; gap: 9px; color: var(--ink); font-family: var(--f-display); font-weight: 800; }
.site-foot .brand-foot img { width: 26px; height: 26px; border-radius: 7px; }

/* Text pages (privacy, terms, support) */
.page { padding-block: 52px 76px; }
.page h1 { font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 8px; }
.page h2 { font-size: 1.3rem; margin: 34px 0 10px; }
.page p, .page li { max-width: 68ch; color: var(--muted); }
.page p + p { margin-top: 12px; }
.page ul { padding-left: 22px; display: grid; gap: 6px; }
.meta { color: var(--muted); font-size: .95rem; font-family: var(--f-mono); }
.contact-card { background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 22px; margin-top: 22px; display: grid; gap: 8px; }
.contact-card h2 { margin: 0; color: var(--ink); }
details.faq { border-bottom: 1px solid var(--line); padding-block: 15px; }
details.faq summary { cursor: pointer; font-weight: 700; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 12px; color: var(--ink); }
details.faq summary::after { content: "+"; color: var(--amber-deep); font-weight: 700; }
details.faq[open] summary::after { content: "\2013"; }
details.faq p { margin-top: 10px; color: var(--muted); max-width: 68ch; }

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
@media (max-width: 420px) {
  .site-head .wrap { gap: 10px; padding-inline: 16px; }
  .brand { font-size: 1.05rem; gap: 8px; }
  .brand img { width: 30px; height: 30px; }
  .nav { gap: 12px; }
  .nav a.btn { padding: 9px 14px; }
}