/* ============================================================
   Salish Lab — brochure site
   Palette, type, and spacing all live in the :root block below.
   Change a value there and it updates everywhere.
   ============================================================ */

:root {
  /* Color — Pacific Northwest: evergreen, slate, warm paper */
  --paper:        #faf7f1;   /* page background, warm off-white */
  --paper-band:   #f2ede3;   /* alternating section bands */
  --paper-raised: #fffdf9;   /* cards */
  --ink:          #1b2421;   /* body text, deep slate-green */
  --ink-soft:     #4f5c58;   /* secondary text */
  --evergreen:    #1f4b3f;   /* primary accent */
  --evergreen-lo: #2f6b58;   /* hover / lighter accent */
  --slate:        #4d6b76;   /* secondary accent */
  --line:         #ded5c6;   /* hairlines and borders */

  /* Type */
  --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  /* Layout */
  --wrap:   68rem;
  --gutter: clamp(1.25rem, 5vw, 2.5rem);
  --radius: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:        #141a18;
    --paper-band:   #1a2220;
    --paper-raised: #1e2724;
    --ink:          #e8e4dc;
    --ink-soft:     #a8b2ae;
    --evergreen:    #7fbfa5;
    --evergreen-lo: #a3d6c0;
    --slate:        #8fb0bb;
    --line:         #2e3a36;
  }
}

/* ---------- Reset-ish ---------- */

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

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  text-wrap: balance;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--evergreen); }

:focus-visible {
  outline: 2px solid var(--evergreen-lo);
  outline-offset: 3px;
  border-radius: 2px;
}

.wrap {
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--evergreen);
  color: #fff;
  padding: 0.7rem 1.1rem;
  z-index: 100;
}
.skip:focus { left: 0.5rem; top: 0.5rem; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 5rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--evergreen);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 1.5rem;
  letter-spacing: 0.01em;
}
.brand-mark { width: 2.75rem; height: 2.75rem; flex: none; }
.brand-name { color: var(--ink); }

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 3vw, 1.75rem);
  font-size: 0.95rem;
}
.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding-block: 0.25rem;
  border-bottom: 1px solid transparent;
}
.site-nav a:hover { color: var(--ink); border-bottom-color: var(--evergreen); }

.nav-cta {
  color: var(--evergreen) !important;
  font-weight: 600;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-block;
  background: var(--evergreen);
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.8rem 1.5rem;
  border-radius: var(--radius);
  border: 1px solid var(--evergreen);
  transition: background-color .15s ease, transform .15s ease;
}
.btn:hover { background: var(--evergreen-lo); border-color: var(--evergreen-lo); }
.btn:active { transform: translateY(1px); }

.btn-quiet {
  background: transparent;
  color: var(--evergreen);
  border-color: var(--line);
}
.btn-quiet:hover { background: transparent; border-color: var(--evergreen); color: var(--evergreen); }

.btn-lg { font-size: 1.125rem; padding: 1rem 2rem; }

/* ---------- Sections ---------- */

section { padding-block: clamp(3.5rem, 9vw, 6.5rem); }

.band {
  background: var(--paper-band);
  border-block: 1px solid var(--line);
  /* faint woven texture — a nod to the coast without an image request */
  background-image:
    repeating-linear-gradient(
      135deg,
      transparent 0 22px,
      color-mix(in srgb, var(--evergreen) 3%, transparent) 22px 23px
    );
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.4rem);
}
.section-title::after {
  content: "";
  display: block;
  width: 2.75rem;
  height: 2px;
  margin-top: 0.9rem;
  background: var(--evergreen);
}

.section-lede {
  color: var(--ink-soft);
  text-wrap: balance;
  max-width: 54ch;
  margin-top: 1.25rem;
  font-size: 1.1rem;
}

/* ---------- Hero ---------- */

.hero {
  padding-block: clamp(4rem, 13vw, 8.5rem);
  background-image:
    radial-gradient(60rem 28rem at 82% -12%, color-mix(in srgb, var(--slate) 13%, transparent), transparent 70%),
    radial-gradient(46rem 24rem at 4% 108%, color-mix(in srgb, var(--evergreen) 11%, transparent), transparent 70%);
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 600;
  margin-bottom: 1.4rem;
}

.hero h1 {
  font-size: clamp(1.8rem, 4.8vw, 2.8rem);
  max-width: 30ch;
  margin-bottom: 1.4rem;
}

.lede {
  font-size: clamp(1.075rem, 2.1vw, 1.3rem);
  color: var(--ink-soft);
  max-width: 56ch;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2.25rem;
}

/* Quiet credibility line under the hero CTAs */
.hero-proof {
  margin-top: 2.75rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  max-width: 30rem;
  font-size: 0.9rem;
  color: var(--ink-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.75rem;
}
.hero-proof span {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate);
  font-weight: 600;
}

/* ---------- Service cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(17rem, 1fr));
  gap: 1.5rem;
  margin-top: 3rem;
}

.card {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-top: 3px solid var(--evergreen);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
}
.card h3 { font-size: 1.35rem; }
.card > p { color: var(--ink-soft); }

.tags {
  list-style: none;
  margin: 1.5rem 0 0;
  padding: 1.1rem 0 0;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 0.5rem;
  font-size: 0.85rem;
}
.tags li {
  color: var(--slate);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.2rem 0.7rem;
  white-space: nowrap;
}

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

.steps {
  list-style: none;
  margin: 3rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  counter-reset: step;
}
@media (min-width: 46rem) {
  .steps { grid-template-columns: 1fr 1fr; }
}

.steps li { position: relative; padding-top: 1.25rem; border-top: 1px solid var(--line); }
.steps h3 { font-size: 1.2rem; margin-bottom: 0.4rem; }
.steps p { color: var(--ink-soft); margin: 0; }

.step-num {
  display: block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--evergreen);
  letter-spacing: 0.08em;
  margin-bottom: 0.6rem;
}

/* ---------- About ---------- */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
  gap: clamp(2rem, 6vw, 4rem);
  align-items: start;
}
.about-grid > div > p { color: var(--ink-soft); max-width: 58ch; }
.about-grid > div > p:first-of-type { color: var(--ink); font-size: 1.1rem; }

@media (max-width: 46rem) {
  .about-grid { grid-template-columns: 1fr; }
}

.fact-box {
  background: var(--paper-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  position: sticky;
  top: 6rem;
}
.fact-box h3 {
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: var(--font-body);
  color: var(--slate);
  margin-bottom: 1.2rem;
}
.fact-box dl { margin: 0; }
.fact-box dt {
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: 1.1rem;
}
.fact-box dt:first-child { margin-top: 0; }
.fact-box dd {
  margin: 0.2rem 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

@media (max-width: 46rem) {
  .fact-box { position: static; }
}

/* ---------- Contact ---------- */

.contact {
  background: var(--evergreen);
  color: var(--paper);
}
.contact-inner { max-width: 46rem; text-align: center; }
.contact h2 {
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  color: var(--paper);
}
.contact p {
  color: color-mix(in srgb, var(--paper) 82%, transparent);
  font-size: 1.1rem;
  margin-inline: auto;
  max-width: 46ch;
  margin-bottom: 2.25rem;
}
.contact .btn {
  background: var(--paper);
  color: var(--evergreen);
  border-color: var(--paper);
}
.contact .btn:hover {
  background: color-mix(in srgb, var(--paper) 88%, var(--evergreen));
  border-color: transparent;
}
.contact :focus-visible { outline-color: var(--paper); }

/* ---------- Footer ---------- */

.site-footer {
  padding-block: 2.75rem;
  border-top: 1px solid var(--line);
  font-size: 0.92rem;
}
.footer-inner { display: grid; gap: 0.35rem; }
.footer-brand {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0;
}
.footer-meta { color: var(--ink-soft); margin: 0; }
.footer-meta a { color: var(--ink-soft); }
.footer-meta a:hover { color: var(--evergreen); }