/* Thermal Themes — one-page studio site */

:root {
  --bg: #fafaf8;
  --ink: #1a1a1a;
  --ink-muted: #555;
  --rule: #d4d4d0;
  --measure: 38rem;
  --gutter: clamp(1.5rem, 5vw, 3rem);
  --font-serif: "Fraunces", Georgia, serif;
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  font-size: 17px;
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.55;
  font-feature-settings: "kern", "liga", "calt";
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
  max-width: var(--measure);
  margin: 0 auto;
  padding: clamp(3rem, 10vh, 6rem) var(--gutter) clamp(2rem, 6vh, 4rem);
}

/* ─── Masthead ─────────────────────────────────────────────── */

.masthead {
  margin-bottom: clamp(3rem, 8vh, 5rem);
}

.wordmark {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2rem, 5vw, 2.75rem);
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin-bottom: 0.75rem;
}

.positioning {
  font-family: var(--font-serif);
  font-weight: 400;
  font-style: italic;
  font-size: clamp(1.0625rem, 2vw, 1.1875rem);
  font-variation-settings: "opsz" 14;
  color: var(--ink-muted);
  line-height: 1.4;
}

/* ─── Section blocks ───────────────────────────────────────── */

.block {
  padding-top: clamp(2rem, 5vh, 3rem);
  padding-bottom: clamp(2rem, 5vh, 3rem);
  border-top: 1px solid var(--rule);
}

.eyebrow {
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
  margin-bottom: 1.25rem;
}

.prose p {
  font-size: 1.0625rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.prose p:last-child { margin-bottom: 0; }

/* ─── Approach principles list ─────────────────────────────── */

.principles {
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}

.principle {
  display: block;
}

.principle dt {
  font-family: var(--font-serif);
  font-weight: 500;
  font-size: 1.0625rem;
  font-variation-settings: "opsz" 14;
  color: var(--ink);
  display: inline;
  margin-right: 0.4em;
}

.principle dd {
  display: inline;
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink-muted);
}

/* ─── Contact ──────────────────────────────────────────────── */

.contact {
  font-size: 1.125rem;
}

.contact a {
  font-family: var(--font-serif);
  font-style: italic;
  font-variation-settings: "opsz" 14;
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  text-decoration-color: var(--rule);
  transition: text-decoration-color 200ms ease;
}

.contact a:hover {
  text-decoration-color: var(--ink);
}

/* ─── Colophon ─────────────────────────────────────────────── */

.colophon {
  margin-top: clamp(3rem, 8vh, 5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  font-size: 0.8125rem;
  color: var(--ink-muted);
  letter-spacing: 0.01em;
}

/* ─── Slightly tighter on small screens ────────────────────── */

@media (max-width: 480px) {
  .principle dt,
  .principle dd {
    display: block;
    margin-right: 0;
  }
  .principle dt {
    margin-bottom: 0.25rem;
  }
}