/* =========================================================
   FOAC, Inc — design tokens
   ink      #12202B  primary text / dark surfaces
   signal   #1FB6A6  accent (teal)
   paper    #FBFBFA  page background
   dim      #F1F3F2  alternating section background
   slate    #4B5A63  secondary text (AA on paper)
   mist     #E4E7E9  hairlines / borders
   deep     #0B141C  darkest surface (footer / hero gradient)
   ========================================================= */

:root {
  --ink: #12202B;
  --ink-deep: #0B141C;
  --signal: #1FB6A6;
  --signal-dim: #14877B;
  --paper: #FBFBFA;
  --dim: #F1F3F2;
  --slate: #4B5A63;
  --mist: #E4E7E9;
  --light: #EDEFEF;

  --font-display: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Instrument Sans", ui-sans-serif, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;

  --max: 1120px;
  --edge: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.08;
  margin: 0;
  letter-spacing: -0.01em;
}

p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding-left: var(--edge);
  padding-right: var(--edge);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal-dim);
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
}
.eyebrow::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--signal);
  display: inline-block;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85em 1.5em;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn:hover { transform: translateY(-1px); }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--signal-dim); }
.btn-ghost { border-color: var(--mist); color: var(--ink); }
.btn-ghost:hover { border-color: var(--ink); }
.btn-on-dark { border-color: rgba(237,239,239,0.3); color: var(--light); }
.btn-on-dark:hover { border-color: var(--signal); color: var(--signal); }

/* ---------- nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(251,251,250,0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mist);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}
.brand .dot { color: var(--signal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a { opacity: 0.75; transition: opacity 0.15s ease; }
.nav-links a:hover { opacity: 1; }
.nav-cta { display: flex; align-items: center; gap: 1.5rem; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); margin: 5px 0; }

/* ---------- hero ---------- */
.hero {
  padding: clamp(56px, 9vw, 108px) 0 clamp(48px, 7vw, 88px);
  overflow: hidden;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero h1 {
  font-size: clamp(2.4rem, 4.4vw, 3.6rem);
  margin: 0.5em 0 0.55em;
}
.hero .lede {
  font-size: 1.06rem;
  color: var(--slate);
  max-width: 46ch;
  margin-bottom: 1.1em;
}
.hero .lede + .lede { margin-top: -0.5em; }
.hero-ctas { display: flex; gap: 0.9rem; flex-wrap: wrap; margin-top: 1.6rem; }

.hero-art {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 420px;
  justify-self: center;
}
.hero-art svg { width: 100%; height: 100%; }
.chaos-line {
  stroke: #C7CDD1;
  stroke-width: 1.2;
  fill: none;
  opacity: 0.9;
  transform-origin: center;
  animation: chaosSettle 1.8s cubic-bezier(.2,.7,.3,1) forwards;
}
.clean-line {
  stroke-dasharray: 240;
  stroke-dashoffset: 240;
  animation: draw 1.2s 1.1s cubic-bezier(.3,.7,.2,1) forwards;
}
.clean-node {
  opacity: 0;
  animation: pop 0.5s 1.9s cubic-bezier(.3,1.4,.5,1) forwards;
}
@keyframes chaosSettle {
  0% { opacity: 0.9; transform: scale(1) rotate(0deg); }
  70% { opacity: 0.35; }
  100% { opacity: 0; transform: scale(0.85) rotate(-3deg); }
}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes pop { to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) {
  .chaos-line { display: none; }
  .clean-line { stroke-dashoffset: 0; }
  .clean-node { opacity: 1; }
}

/* ---------- value props ---------- */
.props {
  border-top: 1px solid var(--mist);
  border-bottom: 1px solid var(--mist);
  background: var(--dim);
}
.props .wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 48px);
  padding: clamp(40px, 6vw, 64px) var(--edge);
}
.prop h3 {
  font-size: 1.05rem;
  margin-bottom: 0.5em;
}
.prop p { color: var(--slate); font-size: 0.95rem; }

/* ---------- section shell ---------- */
section { padding: clamp(64px, 9vw, 108px) 0; }
.section-head { max-width: 640px; margin-bottom: clamp(32px, 5vw, 52px); }
.section-head h2 { font-size: clamp(1.8rem, 3vw, 2.5rem); margin-top: 0.4em; }

/* ---------- about ---------- */
.about .wrap { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 5vw, 64px); }
.about p { color: var(--slate); margin-bottom: 1.1em; }
.about p:last-child { margin-bottom: 0; }
.mission {
  background: var(--ink);
  color: var(--light);
  border-radius: 18px;
  padding: clamp(28px, 4vw, 40px);
  align-self: start;
}
.mission .eyebrow { color: var(--signal); }
.mission h3 { color: var(--paper); font-size: 1.3rem; margin: 0.5em 0 0.6em; }
.mission p { color: rgba(237,239,239,0.78); font-size: 0.98rem; }

/* ---------- services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--mist);
  border: 1px solid var(--mist);
  border-radius: 16px;
  overflow: hidden;
}
.service-card {
  background: var(--paper);
  padding: clamp(24px, 3vw, 32px) clamp(20px, 2.4vw, 28px);
  min-height: 200px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.service-card .num { font-family: var(--font-mono); font-size: 0.75rem; color: var(--slate); opacity: 0.6; }
.service-card h3 { font-size: 1.08rem; margin: 1.4em 0 0.4em; }
.service-card p { color: var(--slate); font-size: 0.92rem; }

/* ---------- why ---------- */
.why { background: var(--dim); }
.why-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem 2.5rem;
}
.why-item {
  display: flex;
  gap: 0.85rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--mist);
  align-items: flex-start;
}
.why-item svg { flex: none; margin-top: 0.2em; }
.why-item.standout { border-bottom-color: var(--signal); }
.why-grid .full { grid-column: 1 / -1; }
.why-item.standout p { font-weight: 600; }

/* ---------- vision ---------- */
.vision {
  background: radial-gradient(120% 140% at 15% 15%, #16303A 0%, var(--ink-deep) 55%, #08110F 100%);
  color: var(--paper);
  text-align: center;
}
.vision .wrap { max-width: 780px; }
.vision blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.15rem);
  font-weight: 700;
  line-height: 1.28;
  margin: 0.6em 0 1em;
}
.vision cite { color: var(--signal); font-style: normal; font-family: var(--font-mono); font-size: 0.8rem; letter-spacing: 0.08em; }

/* ---------- contact ---------- */
.contact .wrap { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(32px, 5vw, 64px); }
.contact-info-list { margin-top: 1.6rem; display: flex; flex-direction: column; gap: 1rem; }
.contact-info-item { display: flex; gap: 0.75rem; font-size: 0.95rem; }
.contact-info-item .label { color: var(--slate); min-width: 4.5rem; font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.06em; padding-top: 0.2em; }

form.contact-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 0.82rem; color: var(--slate); }
.field input, .field textarea {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 0.8em 0.9em;
  border: 1px solid var(--mist);
  border-radius: 10px;
  background: var(--paper);
  color: var(--ink);
  resize: vertical;
}
.field input:focus, .field textarea:focus {
  outline: 2px solid var(--signal);
  outline-offset: 1px;
  border-color: var(--signal);
}
.form-note { grid-column: 1 / -1; font-size: 0.82rem; color: var(--slate); margin-top: -0.3rem; }

/* ---------- footer ---------- */
footer {
  background: var(--ink-deep);
  color: rgba(237,239,239,0.75);
  padding: clamp(40px, 6vw, 64px) 0 clamp(24px, 4vw, 32px);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 0.85fr 0.85fr;
  gap: clamp(24px, 4vw, 48px);
  padding-bottom: clamp(28px, 4vw, 40px);
  border-bottom: 1px solid rgba(237,239,239,0.12);
}
.footer-brand .brand { color: var(--paper); }
.footer-brand p { margin-top: 0.9rem; color: rgba(237,239,239,0.55); font-size: 0.9rem; max-width: 32ch; }
footer h4 { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: rgba(237,239,239,0.5); margin-bottom: 1rem; font-weight: 500; }
footer ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.65rem; font-size: 0.92rem; }
footer ul a { opacity: 0.85; }
footer ul a:hover { opacity: 1; color: var(--signal); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 1.5rem;
  font-size: 0.82rem;
  color: rgba(237,239,239,0.45);
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--mist);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem var(--edge) 1rem;
  }
  .nav-links.is-open { display: flex; }
  .nav-links a { padding: 0.7rem 0; width: 100%; }
  .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: block; }
  .hero .wrap { grid-template-columns: 1fr; }
  .hero-art { order: -1; max-width: 260px; }
  .props .wrap { grid-template-columns: 1fr; }
  .about .wrap { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .contact .wrap { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .services-grid { grid-template-columns: 1fr; }
  form.contact-form { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
}