/* agileai.dev — cool paper, graphite ink, one signal-orange accent.
   Deliberately not the cream+serif / black+acid / broadsheet AI defaults. */

@font-face {
  font-family: "Bricolage";
  src: url("fonts/bricolage.woff2") format("woff2");
  font-weight: 500 700;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("fonts/newsreader.woff2") format("woff2");
  font-weight: 400 500;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Newsreader";
  src: url("fonts/newsreader-italic.woff2") format("woff2");
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}
@font-face {
  font-family: "PlexMono";
  src: url("fonts/plexmono-400.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "PlexMono";
  src: url("fonts/plexmono-500.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

:root {
  --paper:    #f4f5f3;
  --paper-2:  #eceee9;   /* faint panel wash */
  --ink:      #16191d;
  --muted:    #5b6068;
  --hairline: #dbddd8;
  --signal:   #f0531c;

  --display: "Bricolage", system-ui, sans-serif;
  --body:    "Newsreader", Georgia, serif;
  --mono:    "PlexMono", ui-monospace, "SF Mono", Menlo, monospace;

  --edge: clamp(1.25rem, 5vw, 5rem);
  --maxw: 68rem;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  overflow-x: hidden;   /* guard against any element forcing horizontal scroll */
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1.0625rem, 0.95rem + 0.5vw, 1.1875rem);
  line-height: 1.55;
  font-feature-settings: "kern", "liga";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a { color: inherit; }

/* ---- shared marks ---------------------------------------------------- */

.mark, .foot-mark {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--ink);
}
.mark-grade { color: var(--signal); }

.eyebrow, .section-eyebrow, .topbar-contact, .cta, .tenet-k, .foot-legal {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---- top bar --------------------------------------------------------- */

.topbar {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem var(--edge);
}
.topbar .mark { font-size: 1.25rem; }
.topbar-contact {
  text-decoration: none;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0.01em;
}
.topbar-contact:hover { color: var(--signal); }

/* ---- hero ------------------------------------------------------------ */

main { display: block; }

.hero {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 9vw, 7.5rem) var(--edge) clamp(3.5rem, 8vw, 6rem);
}

.eyebrow {
  color: var(--muted);
  margin: 0 0 1.6rem;
  text-transform: none;
  letter-spacing: 0.02em;
}

.hero-title {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2.05rem, 1.1rem + 5vw, 5.4rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 0;
  overflow-wrap: break-word;   /* never clip a long word off the edge */
}
.nowrap { white-space: nowrap; }
.signal-dot {
  display: inline-block;
  width: 0.32em;
  height: 0.32em;
  margin-left: 0.12em;
  border-radius: 50%;
  background: var(--signal);
  vertical-align: 0.12em;
}

.heartbeat {
  margin: clamp(1.5rem, 4vw, 2.75rem) 0 clamp(1.75rem, 4vw, 2.75rem);
  height: 40px;
}
.heartbeat svg { width: 100%; height: 100%; display: block; }
.heartbeat-line {
  fill: none;
  stroke: var(--signal);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  /* set by app.js once measured; keeps the trace intact if JS never runs */
}

.hero-lede {
  max-width: 40ch;
  font-size: clamp(1.25rem, 1.05rem + 0.9vw, 1.6rem);
  line-height: 1.45;
  margin: 0 0 2.4rem;
}

.cta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  padding: 0.7rem 1.1rem;
  border: 1.5px solid var(--ink);
  border-radius: 2px;
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.cta:hover {
  color: var(--paper);
  background: var(--signal);
  border-color: var(--signal);
}
.cta-arrow { transition: transform .18s ease; }
.cta:hover .cta-arrow { transform: translateX(3px); }

/* ---- content blocks -------------------------------------------------- */

.block {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5.5rem) var(--edge);
  border-top: 1px solid var(--hairline);
}
.section-eyebrow {
  color: var(--muted);
  margin: 0 0 2rem;
}

.capabilities {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.75rem, 4vw, 3.25rem);
}
.cap h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.4rem, 1.15rem + 0.9vw, 1.9rem);
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 0.55rem;
}
.cap p { margin: 0; color: #33373d; max-width: 34ch; }

/* ---- approach -------------------------------------------------------- */

.approach {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
.approach-lead {
  font-size: clamp(1.35rem, 1.1rem + 1.1vw, 1.95rem);
  line-height: 1.32;
  font-style: italic;
  margin: 0;
  letter-spacing: -0.01em;
}
.tenets { list-style: none; margin: 0; padding: 0; }
.tenets li {
  padding: 1rem 0;
  border-top: 1px solid var(--hairline);
  color: #33373d;
}
.tenets li:first-child { border-top: none; padding-top: 0; }
.tenet-k {
  display: block;
  color: var(--signal);
  margin-bottom: 0.3rem;
}

/* ---- footer ---------------------------------------------------------- */

.foot {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) var(--edge) 3.5rem;
  border-top: 1px solid var(--hairline);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 1rem 2rem;
}
.foot-mark { font-size: 1.25rem; }
.foot-contact { margin-left: auto; }
.foot-contact a {
  font-family: var(--mono);
  font-size: 0.9375rem;
  text-decoration: none;
  border-bottom: 1.5px solid var(--signal);
  padding-bottom: 1px;
}
.foot-contact a:hover { color: var(--signal); }
.foot-legal {
  flex-basis: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.4rem 1.5rem;
  color: var(--muted);
  margin: 0.5rem 0 0;
  text-transform: none;
  letter-spacing: 0.01em;
  font-size: 0.75rem;
}
.foot-legal p { margin: 0; }
.foot-links { display: flex; gap: 1.25rem; }
.foot-links a { text-decoration: none; }
.foot-links a:hover { color: var(--signal); }

/* ---- legal pages ----------------------------------------------------- */

/* Same 68rem container as the hero and footer, so the left edge lines up with
   the rest of the site; the measure is held inside it rather than by centring. */
.legal {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(2.5rem, 7vw, 5rem) var(--edge) clamp(3rem, 7vw, 5rem);
}
.legal > * { max-width: 40rem; }
.legal h1 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.25rem);
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin: 0 0 0.9rem;
}
.legal-meta {
  font-family: var(--mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  color: var(--muted);
  margin: 0 0 2.5rem;
}
.legal h2 {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.15rem, 1.05rem + 0.5vw, 1.4rem);
  letter-spacing: -0.015em;
  line-height: 1.2;
  margin: 2.6rem 0 0.7rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--hairline);
}
.legal h2:first-of-type { margin-top: 0; }
.legal p, .legal li { color: #33373d; }
.legal p { margin: 0 0 1rem; }
.legal ul { margin: 0 0 1rem; padding-left: 1.1rem; }
.legal li { margin-bottom: 0.45rem; }
.legal a { color: var(--ink); text-decoration-color: var(--signal); text-underline-offset: 2px; }
.legal a:hover { color: var(--signal); }
.legal-address {
  font-family: var(--mono);
  font-size: 0.875rem;
  font-style: normal;
  line-height: 1.7;
  color: #33373d;
  margin: 0 0 1rem;
}

/* ---- responsive ------------------------------------------------------ */

@media (max-width: 620px) {
  .capabilities { grid-template-columns: 1fr; }
  .approach { grid-template-columns: 1fr; }
  .foot-contact { margin-left: 0; }
  /* the desktop line breaks are wider than a phone — let the title wrap on its own */
  .hero-title br { display: none; }
  .hero-lede { max-width: none; }
  /* keep the top-bar email from running off; the CTA + footer also carry it */
  .topbar-contact { display: none; }
}

/* ---- a11y ------------------------------------------------------------ */

a:focus-visible, .cta:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .heartbeat-line { stroke-dasharray: none !important; stroke-dashoffset: 0 !important; }
}