/* PRIÖRA FORM — brand site styles
   Visual rules from brand manual ch.4:
   black & white only, no icons, no decoration, no rounded corners,
   huge headlines (50-70% of viewport), tiny body text (14-16px),
   left-aligned, generous whitespace, no shadows. */

:root {
  --ink: #000;
  --paper: #fff;
  --muted: #444;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 300;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ---------- typography ---------- */

.display {
  font-family: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 0.95;
}

h1.display { font-size: clamp(3rem, 11vw, 9rem); }
h2.display { font-size: clamp(2rem, 6vw, 4.5rem); }
h3.display { font-size: clamp(1.4rem, 3.4vw, 2.4rem); }

/* ---------- layout ---------- */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
}

section { padding: 120px 0; }

/* ---------- header / nav ---------- */

header {
  position: sticky;
  top: 0;
  background: var(--paper);
  border-bottom: 1px solid var(--ink);
  z-index: 10;
}

.nav {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: 24px 32px;
  max-width: 1200px;
  margin: 0 auto;
}

.brand {
  font-family: "Archivo", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--ink);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 40px;
}

nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
}

nav a:hover { text-decoration: underline; }

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

.hero {
  background: var(--ink) url("/assets/img/hero-bg.webp") center/cover no-repeat;
  color: var(--paper);
  padding: 180px 0 200px;
  min-height: 78vh;
  display: flex;
  align-items: center;
}

.hero .display {
  font-size: clamp(3.2rem, 12vw, 10rem);
  max-width: 11em;
  text-shadow:
    0 2px 4px rgba(0,0,0,.85),
    0 8px 32px rgba(0,0,0,.6),
    0 0 80px rgba(0,0,0,.45);
}

.hero p.sub {
  margin-top: 48px;
  font-size: 14px;
  color: #f2f2f2;
  max-width: 42em;
  text-shadow:
    0 1px 2px rgba(0,0,0,.9),
    0 4px 20px rgba(0,0,0,.65);
}

.hero p.sub strong { color: var(--paper); font-weight: 500; }

/* ---------- buttons / links ---------- */

.btn {
  display: inline-block;
  margin-top: 64px;
  background: var(--paper);
  color: var(--ink);
  border: none;
  padding: 18px 40px;
  font-family: "Archivo", sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  border-radius: 0;
}

.btn-dark {
  background: var(--ink);
  color: var(--paper);
}

.btn:hover { outline: 2px solid currentColor; }

/* ---------- plain sections ---------- */

.statement { padding: 140px 0; }

.statement .display { max-width: 14em; }

.lead {
  margin-top: 56px;
  font-size: 15px;
  max-width: 46em;
}

.muted { color: var(--muted); }

/* ---------- split: image + text ---------- */

.section-gray { background: #F5F5F5; }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 120px 0;
}

.split img {
  width: 100%;
  height: auto;
  display: block;
}

.split .display { margin-bottom: 24px; }

.split .lead { margin-top: 32px; }

/* ---------- steps ---------- */

.steps { border-top: 1px solid var(--ink); }

.step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 32px;
  padding: 56px 0;
  border-bottom: 1px solid var(--ink);
}

.step .num {
  font-family: "Archivo", sans-serif;
  font-weight: 900;
  font-size: 1.1rem;
  letter-spacing: 0.1em;
}

.step h3 {
  font-family: "Archivo", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.step p { max-width: 40em; }

/* ---------- comparison table ---------- */

.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.compare .col { padding: 48px 40px 56px; }

.compare .col:first-child { border-right: 1px solid var(--ink); }

.compare h3 {
  font-family: "Archivo", sans-serif;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 1.1rem;
  margin-bottom: 28px;
}

.compare ul { list-style: none; }

.compare li {
  padding: 12px 0;
  border-bottom: 1px solid #ddd;
  font-size: 14px;
}

.compare li:last-child { border-bottom: none; }

/* ---------- etymology ---------- */

.etymology {
  background: var(--ink);
  color: var(--paper);
  padding: 140px 0;
}

.etymology p {
  font-size: 15px;
  line-height: 2;
  max-width: 34em;
}

.etymology .o-mark { letter-spacing: 0.4em; font-size: 1.4rem; }

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

footer {
  background: var(--paper);
  border-top: 1px solid var(--ink);
  padding: 80px 0 64px;
}

footer .brand { font-size: 1.4rem; }

.foot-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 48px;
}

footer a { color: var(--ink); text-decoration: underline; }

footer .small { font-size: 12px; color: var(--muted); margin-top: 48px; }

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

@media (max-width: 760px) {
  .nav { flex-direction: column; gap: 18px; }
  nav ul { gap: 24px; flex-wrap: wrap; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .compare { grid-template-columns: 1fr; }
  .compare .col:first-child { border-right: none; border-bottom: 1px solid var(--ink); }
  .foot-grid { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 48px; padding: 80px 0; }
  section, .statement, .etymology { padding: 80px 0; }
}