/* Derek Dorsett — portfolio
   Palette: deep navy ink, slate, confident blue accent, off-white.
   All text/UI colors verified to meet WCAG 2.1 AA contrast on their backgrounds. */

:root {
  --ink:      #0f1b2d;   /* headings / dark */
  --body:     #243140;   /* body text on white (>= 9:1) */
  --muted:    #54606e;   /* secondary text on white (>= 5.7:1) */
  --accent:   #1b4fa8;   /* links/buttons; white-on-accent >= 6:1 */
  --accent-d: #143b80;   /* hover */
  --bg:       #ffffff;
  --panel:    #f4f7fb;   /* alt section bg */
  --line:     #dde4ee;
  --radius:   12px;
  --maxw:     1080px;
  --shadow:   0 1px 2px rgba(15,27,45,.06), 0 8px 24px rgba(15,27,45,.06);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--body);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

h1, h2, h3 { color: var(--ink); line-height: 1.15; letter-spacing: -0.01em; margin: 0 0 .5em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; }
h3 { font-size: 1.18rem; font-weight: 700; }
p { margin: 0 0 1rem; }
a { color: var(--accent); }
a:hover { color: var(--accent-d); }

.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff;
  padding: 10px 16px; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92); backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-weight: 700; }
.brand-mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 8px;
  background: var(--ink); color: #fff; font-weight: 800; font-size: .85rem; letter-spacing: .02em;
}
.brand-name { font-size: 1.05rem; }
.primary-nav { display: flex; align-items: center; gap: 28px; }
.primary-nav a { color: var(--body); text-decoration: none; font-weight: 500; font-size: .98rem; }
.primary-nav a:hover { color: var(--accent); }
.nav-cta { background: var(--ink); color: #fff !important; padding: 8px 16px; border-radius: 8px; }
.nav-cta:hover { background: var(--accent-d); }
.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 12px; }
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after {
  content: ""; display: block; width: 22px; height: 2px; background: var(--ink); position: relative;
}
.nav-toggle-bar::before { position: absolute; top: -7px; }
.nav-toggle-bar::after  { position: absolute; top: 7px; }

/* ---------- Hero ---------- */
.hero { padding: clamp(48px, 9vw, 104px) 0 clamp(36px, 6vw, 64px); }
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; font-size: .82rem; margin: 0 0 .6rem; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 4.4rem); font-weight: 800; margin-bottom: .25em; }
.lead { font-size: clamp(1.18rem, 2.4vw, 1.5rem); color: var(--ink); font-weight: 600; max-width: 40ch; margin-bottom: .8rem; }
.sub { font-size: 1.06rem; color: var(--muted); max-width: 60ch; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 26px 0 0; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 12px 24px; border-radius: 10px;
  font-weight: 600; font-size: 1rem; text-decoration: none; cursor: pointer; border: 2px solid transparent;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-d); color: #fff; }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.stat-strip {
  list-style: none; margin: 44px 0 0; padding: 24px 0 0; border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
.stat-strip li { display: flex; flex-direction: column; gap: 4px; }
.stat-strip strong { font-size: 1.7rem; color: var(--ink); font-weight: 800; line-height: 1; }
.stat-strip span { color: var(--muted); font-size: .92rem; }

/* ---------- Sections ---------- */
.section { padding: clamp(56px, 8vw, 96px) 0; }
.section-alt { background: var(--panel); border-block: 1px solid var(--line); }
.section-intro { color: var(--muted); max-width: 68ch; font-size: 1.06rem; margin-bottom: 36px; }

/* ---------- Grids / cards ---------- */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow);
}
.pillar h3 { margin-bottom: .35em; }
.pillar p { color: var(--muted); margin: 0; font-size: .98rem; }

.work-card { display: flex; flex-direction: column; }
.work-card .tag {
  align-self: flex-start; font-size: .74rem; font-weight: 700; letter-spacing: .03em; text-transform: uppercase;
  color: var(--accent); background: #eaf1fb; padding: 5px 10px; border-radius: 999px; margin-bottom: 14px;
}
.work-card h3 { margin-bottom: .15em; }
.work-client { color: var(--muted); font-size: .9rem; margin: 0 0 .7rem; font-style: italic; }
.work-card p { color: var(--body); font-size: .98rem; }
.work-meta { color: var(--muted); font-size: .86rem; margin-top: auto; padding-top: 10px; }
.work-link { display: inline-block; margin-top: 14px; font-weight: 600; text-decoration: none; }
.work-link:hover { text-decoration: underline; }
.work-card.featured { border-color: var(--accent); border-width: 1px; box-shadow: 0 0 0 1px var(--accent), var(--shadow); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 280px 1fr; gap: 48px; align-items: start; }
.headshot {
  width: 100%; aspect-ratio: 4/5; object-fit: cover; object-position: 50% 40%;
  border-radius: var(--radius); display: block; box-shadow: var(--shadow);
}
.about-body p { color: var(--body); max-width: 62ch; }
.about-note { color: var(--muted); font-style: italic; border-left: 3px solid var(--accent); padding-left: 14px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 0; font-size: 1.1rem; }
.contact-list li { margin-bottom: 10px; }
.contact-form .field { margin-bottom: 16px; display: flex; flex-direction: column; gap: 6px; }
.contact-form label { font-weight: 600; font-size: .95rem; color: var(--ink); }
.contact-form input, .contact-form textarea {
  font: inherit; padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; color: var(--body);
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); outline: 2px solid var(--accent); outline-offset: 1px; }
.hp { position: absolute; left: -9999px; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 32px 0; color: var(--muted); font-size: .92rem; }
.footer-wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-links a { color: var(--muted); text-decoration: none; margin-left: 18px; }
.footer-links a:hover { color: var(--accent); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .about-photo { max-width: 240px; }
  .contact-grid { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}
@media (max-width: 620px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: absolute; top: 64px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 0; display: none;
  }
  .primary-nav.open { display: flex; }
  .primary-nav a { padding: 14px 24px; }
  .nav-cta { margin: 8px 24px; text-align: center; }
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
}