/* murrayhume.com — v1 stylesheet
   Design tokens and component rules from murrayhume-site-design.md
*/

:root {
  /* Colour */
  --color-bg: #F7F2EC;
  --color-surface: #FFFFFF;
  --color-text: #1F1B18;
  --color-text-muted: #5C524A;
  --color-accent: #1E2D4A;
  --color-accent-hover: #162239;
  --color-border: #E8DFD3;
  --color-focus: rgba(30, 45, 74, 0.5);
  --color-hover-border: rgba(30, 45, 74, 0.2);

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Spacing (8px base) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 64px;
  --space-8: 96px;
  --space-9: 128px;
  --space-10: 160px;

  /* Layout */
  --max-width: 1120px;
  --prose-width: 640px;
  --side-pad-mobile: 24px;
  --side-pad-desktop: 48px;
}

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

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

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

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ---------- Typography ---------- */

h1, h2, h3, h4 {
  margin: 0;
  color: var(--color-text);
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 40px;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -0.015em;
}

h3 {
  font-size: 22px;
  line-height: 1.25;
}

p {
  margin: 0 0 var(--space-3) 0;
}

p + p {
  margin-top: var(--space-3);
}

.lede {
  font-size: 18px;
  line-height: 1.55;
  font-weight: 400;
  color: var(--color-text);
}

.meta {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

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

strong, b {
  font-weight: 600;
}

/* ---------- Links ---------- */

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-thickness 150ms ease, color 150ms ease;
}

a:hover {
  color: var(--color-accent-hover);
  text-decoration-thickness: 2px;
}

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

/* ---------- Layout ---------- */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--side-pad-mobile);
}

.prose {
  max-width: var(--prose-width);
}

main > section {
  padding-top: 72px;
  padding-bottom: 0;
}

main > section:last-of-type {
  padding-bottom: 72px;
}

.section-label {
  display: block;
  margin-bottom: var(--space-3);
}

.section-heading {
  margin-bottom: var(--space-5);
}

/* ---------- Nav ---------- */

.site-nav {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding-top: var(--space-3);
  padding-bottom: var(--space-3);
  flex-wrap: wrap;
}

.site-nav__brand {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.site-nav__brand:hover {
  color: var(--color-accent-hover);
  text-decoration: none;
}

.site-nav__links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
}

.site-nav__links a {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-text);
}

.site-nav__links a:hover {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.site-nav__links a[aria-current="page"] {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.site-nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

@media (min-width: 640px) {
  .site-nav__right {
    gap: var(--space-4);
  }
}

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

.hero {
  padding-top: var(--space-7);
  padding-bottom: var(--space-6);
}

.hero__eyebrow {
  margin-bottom: var(--space-3);
}

.hero h1 {
  margin-bottom: var(--space-4);
}

.hero__subhead {
  font-size: 20px;
  line-height: 1.4;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  max-width: 760px;
}

.hero__lede {
  font-size: 18px;
  line-height: 1.55;
  color: var(--color-text);
  margin-bottom: var(--space-3);
  max-width: var(--prose-width);
}

.hero__meta {
  font-size: 16px;
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  max-width: var(--prose-width);
}

.hero__cta {
  margin-top: var(--space-4);
}

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

.btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 14px 28px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 16px;
  font-weight: 500;
  line-height: 1.2;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background-color 150ms ease, transform 150ms ease;
  will-change: transform;
}

.btn:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
  transform: translateY(-1px);
  text-decoration: none;
}

.btn:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
}

.btn--secondary {
  background: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  padding: 13px 27px;
}

.btn--secondary:hover {
  background: var(--color-accent);
  color: var(--color-bg);
}

.btn--compact {
  padding: 9px 18px;
  font-size: 14px;
  line-height: 1.2;
}

/* ---------- Cards / grids ---------- */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.card {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 28px;
  background: transparent;
  transition: border-color 150ms ease;
}

.card h3 {
  margin-bottom: var(--space-2);
}

.card p {
  margin-bottom: 0;
  color: var(--color-text);
}

.card p + p {
  margin-top: var(--space-2);
}

.card--case:hover {
  border-color: var(--color-hover-border);
}

.card--case h3 {
  margin-bottom: var(--space-1);
}

.card--case .card__meta {
  display: block;
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ---------- Services ---------- */

.services {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-5);
  max-width: 960px;
}

.service h3 {
  margin-bottom: var(--space-2);
}

.service p {
  max-width: var(--prose-width);
}

/* ---------- How I work ---------- */

.how {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  margin-top: var(--space-5);
}

.how__item {
  max-width: var(--prose-width);
}

.how__item h3 {
  margin-bottom: var(--space-2);
}

.how__item p {
  margin-bottom: 0;
}

.how__links {
  margin-top: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
}

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

.steps {
  list-style: none;
  counter-reset: step;
  margin: var(--space-5) 0 0;
  padding: 0;
  display: grid;
  gap: var(--space-4);
  max-width: var(--prose-width);
}

.steps li {
  counter-increment: step;
  padding-left: 44px;
  position: relative;
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-accent);
  color: var(--color-bg);
  font-size: 13px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  font-feature-settings: 'tnum';
}

.steps h3 {
  font-size: 20px;
  margin-bottom: var(--space-1);
}

.steps p {
  margin-bottom: 0;
  color: var(--color-text);
}

/* ---------- FAQ ---------- */

.faq {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-5);
  max-width: var(--prose-width);
}

.faq__item h3 {
  margin-bottom: var(--space-2);
}

.faq__item p {
  margin-bottom: 0;
}

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

.about {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
  margin-top: var(--space-5);
  align-items: start;
}

.about__portrait {
  width: 200px;
  max-width: 100%;
  border-radius: 6px;
  border: 1px solid var(--color-border);
}

.about__body {
  max-width: var(--prose-width);
}

.about__body p + p {
  margin-top: var(--space-3);
}

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

.contact-list {
  list-style: none;
  padding: 0;
  margin: var(--space-5) 0 0;
  display: grid;
  gap: var(--space-3);
  max-width: var(--prose-width);
}

.contact-list li {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: baseline;
}

.contact-list__label {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  min-width: 80px;
}

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

.site-footer {
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-5);
  padding-bottom: var(--space-6);
  color: var(--color-text-muted);
  font-size: 14px;
}

.site-footer p {
  margin-bottom: var(--space-2);
  max-width: 720px;
}

.site-footer a {
  color: var(--color-text-muted);
}

.site-footer a:hover {
  color: var(--color-accent);
}

/* ---------- Atmospheric image slot (placeholder) ---------- */

.atmospheric {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  width: 100%;
  aspect-ratio: 4 / 3;
  margin: var(--space-5) 0;
}

/* ---------- Utility ---------- */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-accent);
  color: var(--color-bg);
  padding: var(--space-2) var(--space-3);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  left: var(--space-3);
  top: var(--space-3);
  color: var(--color-bg);
}

/* ---------- Tablet (640px+) ---------- */

@media (min-width: 640px) {
  body {
    font-size: 17px;
  }

  .container {
    padding: 0 var(--side-pad-desktop);
  }

  h1 {
    font-size: 56px;
  }

  h2 {
    font-size: 38px;
  }

  h3 {
    font-size: 24px;
  }

  .hero__subhead {
    font-size: 22px;
  }

  .hero__lede {
    font-size: 20px;
  }

  main > section {
    padding-top: 96px;
  }

  main > section:last-of-type {
    padding-bottom: 96px;
  }

  .hero {
    padding-top: var(--space-8);
    padding-bottom: var(--space-7);
  }

  .card-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-4);
  }

  .about {
    grid-template-columns: 240px 1fr;
    gap: var(--space-6);
  }
}

/* ---------- Desktop (1024px+) ---------- */

@media (min-width: 1024px) {
  h1 {
    font-size: 72px;
  }

  h2 {
    font-size: 44px;
  }

  .hero__subhead {
    font-size: 24px;
  }

  main > section {
    padding-top: 128px;
  }

  main > section:last-of-type {
    padding-bottom: 128px;
  }

  .site-nav {
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: saturate(1.2);
  }

  .site-nav__inner {
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .site-nav__links {
    gap: var(--space-5);
  }

  .card-grid {
    gap: var(--space-5);
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .btn:hover {
    transform: none;
  }
}