/* Alpha44 site styles — design-system tokens (from the Industry design
   system) plus the page's own layout/typography classes, in one file.
   Every value below is a token; nothing is hard-coded. */
@import url('https://fonts.googleapis.com/css2?family=Barlow:wght@400;500;700&family=Barlow+Condensed:wght@400;600&display=swap');

:root {
  --color-bg: #f2f2f3;
  --color-surface: #e9e9ea;
  --color-text: #1d1f20;
  --color-accent: #5980a6;
  --color-accent-2: #728fab;
  --color-divider: color-mix(in srgb, #1d1f20 16%, transparent);

  /* Tonal ramps — generated in OKLCH on one shared lightness scale, so the
     same step of any role matches the others in visual value. */
  --color-neutral-100: #f5f5f8;
  --color-neutral-200: #e7e7ea;
  --color-neutral-300: #d4d4d7;
  --color-neutral-400: #b7b7ba;
  --color-neutral-500: #98989b;
  --color-neutral-600: #7a7a7d;
  --color-neutral-700: #5d5d60;
  --color-neutral-800: #424244;
  --color-neutral-900: #2b2b2d;

  --color-accent-100: #eef6ff;
  --color-accent-200: #d6ebff;
  --color-accent-300: #b5d9fd;
  --color-accent-400: #94bce3;
  --color-accent-500: #749dc4;
  --color-accent-600: #597ea3;
  --color-accent-700: #416180;
  --color-accent-800: #2c455d;
  --color-accent-900: #1d2d3d;

  --color-accent-2-100: #eef6ff;
  --color-accent-2-200: #d6ebff;
  --color-accent-2-300: #bdd8f2;
  --color-accent-2-400: #9ebbd8;
  --color-accent-2-500: #7e9cb8;
  --color-accent-2-600: #627d98;
  --color-accent-2-700: #486077;
  --color-accent-2-800: #314457;
  --color-accent-2-900: #1f2d3a;

  --font-heading: "Barlow Condensed", system-ui, sans-serif;
  --font-heading-weight: 600;
  --font-body: "Barlow", system-ui, sans-serif;

  --space-1: 3.4px;
  --space-2: 6.8px;
  --space-3: 10.2px;
  --space-4: 13.6px;
  --space-6: 20.4px;
  --space-8: 27.2px;

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 7px;

  /* Elevation — derived from the ground: soft ink-tinted shadows on a
     light theme, a hairline edge + ambient darkness on a dark one. */
  --shadow-sm: 0 1px 2px color-mix(in srgb, #2b2b2d 14%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #2b2b2d 16%, transparent);
  --shadow-lg: 0 12px 32px color-mix(in srgb, #2b2b2d 22%, transparent);
}

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

body {
  margin: 0;
  text-wrap: pretty;
  font-size: 15px;
  line-height: 1.55;
  font-weight: 400;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
}
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  line-height: 1.12; letter-spacing: -0.015em; margin: 0 0 var(--space-2);
}
h1 { font-size: 42px; }
h2 { font-size: 32px; }
h3 { font-size: 25px; }
h4 { font-size: 20px; }
h5 { font-size: 16px; }
h6 { font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; }
p { margin: 0 0 var(--space-3); }
a {
  color: var(--color-accent-700);
  text-decoration: none;
  text-underline-offset: 3px;
}
a:hover {
  color: var(--color-accent-900);
  text-decoration: underline;
}
img { display: block; max-width: 100%; }
:focus { outline: none; }
:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
::selection { background: color-mix(in srgb, var(--color-accent) 30%, transparent); }

/* — blueprint frame: cards, figures and the primary button are wireframe
     objects — square, transparent, hairline-bordered, with "+" corner
     registration marks. — */
.blueprint {
  position: relative;
  border: 1px solid var(--color-divider);
  border-radius: 0;
}
.blueprint > .corner {
  position: absolute; width: 11px; height: 11px;
  color: color-mix(in srgb, var(--color-text) 55%, transparent);
}
.blueprint > .corner::before, .blueprint > .corner::after {
  content: ""; position: absolute; background: currentColor;
}
.blueprint > .corner::before { left: 5px; top: 0; width: 1px; height: 100%; }
.blueprint > .corner::after  { top: 5px; left: 0; width: 100%; height: 1px; }
.blueprint > .corner.tl { top: -6px; left: -6px; }
.blueprint > .corner.tr { top: -6px; right: -6px; }
.blueprint > .corner.bl { bottom: -6px; left: -6px; }
.blueprint > .corner.br { bottom: -6px; right: -6px; }

/* — buttons — */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  cursor: pointer; text-decoration: none;
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 14px; line-height: 1.2; color: var(--color-text);
  background: transparent; border: 1px solid var(--color-divider);
  padding: var(--space-2) calc(var(--space-3) * 1.2);
  border-radius: 0;
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); }
.btn-primary:hover { background: var(--color-accent-600); }
.btn-primary:active { background: var(--color-accent-700); }
.btn-secondary:hover { background: color-mix(in srgb, var(--color-text) 7%, transparent); }
.btn-secondary:active { background: color-mix(in srgb, var(--color-text) 14%, transparent); }
.btn-ghost { color: var(--color-accent); padding-inline: var(--space-1); border-color: transparent; }
.btn-ghost:hover { background: color-mix(in srgb, var(--color-accent) 10%, transparent); }
.btn-ghost:active { background: color-mix(in srgb, var(--color-accent) 18%, transparent); }

/* — navigation — */
.nav {
  display: flex; align-items: center; gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
}
.nav-brand {
  font-family: var(--font-heading); font-weight: var(--font-heading-weight);
  font-size: 18px; margin-right: auto;
}

/* — tables — */
.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: color-mix(in srgb, var(--color-text) 60%, transparent);
  padding: var(--space-2); border-bottom: 1px solid var(--color-divider);
}
.table td {
  padding: var(--space-2);
  border-bottom: 1px solid color-mix(in srgb, var(--color-text) 8%, transparent);
}
.table tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }

/* ══════════════════════════════════════════════════════════════════════
   Page layout — Alpha44 site
   ══════════════════════════════════════════════════════════════════ */

.page-shell {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 24px;
}

.site-nav {
  padding-inline: max(24px, calc((100% - 1160px) / 2 + 24px));
  gap: 20px;
}
.site-nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-right: auto;
}
.site-nav-mark {
  height: 30px;
  width: auto;
  display: block;
}
.site-nav-wordmark {
  font-size: 18px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.site-nav-link {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
}
.site-nav-link.is-active {
  color: var(--color-accent-700);
}
.site-nav-email {
  letter-spacing: 0.06em;
}

.content {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 64px);
}

/* — shared section furniture — */
.section-eyebrow {
  display: block;
  font-size: 13px;
  line-height: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--color-accent-700);
  margin: 0 0 12px;
}
.section-rule {
  height: 1px;
  border: 0;
  margin: 0 0 32px;
  background: var(--color-divider);
}
.section-rule--tight {
  margin: 0 0 24px;
}

.lede {
  font-size: 17px;
  line-height: 27px;
  margin: 0;
}
.lede--hero {
  max-width: 62ch;
  margin-top: 32px;
}
.lede--page {
  max-width: 60ch;
  margin-top: 28px;
}

.actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* — hero — */
.hero {
  padding: 96px 0 72px;
}
.hero-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: clamp(46px, 6.6vw, 92px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 0 -0.052em;
}
.hero-title-line {
  display: block;
}
.hero-actions {
  margin-top: 32px;
}

/* — page header (Work / About) — */
.page-header {
  padding: 72px 0 48px;
}
.page-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: clamp(40px, 5.4vw, 72px);
  line-height: 1.04;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin: 0 0 0 -0.052em;
}

/* — record-of-service sheet (home) — */
.sheet-section {
  padding: 0 0 72px;
}
.sheet-frame {
  position: relative;
}
.sheet-header {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  border-bottom: 1px solid var(--color-divider);
}
.sheet-header-cell {
  padding: 12px 24px;
  font-size: 13px;
  line-height: 24px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.sheet-header-title {
  flex: 1;
  min-width: 16ch;
}
.sheet-header-meta {
  border-left: 1px solid var(--color-divider);
  white-space: nowrap;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.sheet-table {
  table-layout: fixed;
}
.sheet-table th {
  font-size: 13px;
  font-weight: 600;
  padding: 12px 24px 12px 0;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.sheet-table th:first-child {
  padding-left: 24px;
}
.sheet-cell-no {
  padding: 12px 24px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--color-accent-700);
  font-feature-settings: 'tnum' 1;
}
.sheet-cell-label {
  padding: 12px 24px 12px 0;
  font-size: 15px;
  line-height: 24px;
}
.sheet-cell-value {
  padding: 12px 24px 12px 0;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 22px;
  line-height: 24px;
  font-feature-settings: 'tnum' 1;
}
.sheet-cell-remark {
  padding: 12px 24px 12px 0;
  font-size: 15px;
  line-height: 24px;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}
.sheet-footnote {
  margin: 0;
  padding: 12px 24px;
  border-top: 1px solid var(--color-divider);
  font-size: 13px;
  line-height: 24px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}

/* — service / step grids (home) — */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(24px, 3vw, 48px);
}
.card-grid--steps {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.service-card {
  position: relative;
  padding: 24px;
}
.service-card h2 {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 22px;
  line-height: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0;
}
.service-card p {
  font-size: 15px;
  line-height: 24px;
  margin: 16px 0 20px;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}
.service-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 15px;
  line-height: 24px;
}
.service-list li {
  display: flex;
  gap: 10px;
}
.service-list .bullet {
  color: var(--color-accent-700);
  font-weight: 600;
}

.steps-section {
  padding: 0 0 84px;
}
.step-num {
  display: block;
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 32px;
  line-height: 32px;
  color: var(--color-accent-700);
  font-feature-settings: 'tnum' 1;
}
.step-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 20px;
  line-height: 24px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 12px 0 0;
}
.step-desc {
  font-size: 15px;
  line-height: 24px;
  margin: 12px 0 0;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}

/* — engagements (work) — */
.engagement-list {
  display: grid;
  gap: 40px;
  padding: 0 0 84px;
}
.engagement {
  position: relative;
}
.engagement-header {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  border-bottom: 1px solid var(--color-divider);
}
.engagement-header-cell {
  padding: 12px 24px;
  font-size: 13px;
  line-height: 24px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
}
.engagement-header-title {
  flex: 1;
  min-width: 14ch;
}
.engagement-header-meta {
  border-left: 1px solid var(--color-divider);
  white-space: nowrap;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}
.engagement-body {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
  padding: 24px;
}
.engagement-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
  margin-bottom: 8px;
}
.engagement-text {
  font-size: 15px;
  line-height: 24px;
  margin: 0;
}

/* — about — */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(280px, 5fr);
  gap: clamp(32px, 6vw, 88px);
  padding: 0 0 72px;
  align-items: start;
}
@media (max-width: 640px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}
.about-body p {
  font-size: 17px;
  line-height: 27px;
  margin: 0;
}
.about-body p + p {
  margin-top: 24px;
}
.about-card {
  position: relative;
  padding: 24px;
  align-self: start;
}
.about-card-label {
  display: block;
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
  margin-bottom: 16px;
}
.about-card dl {
  margin: 0;
  display: grid;
  gap: 16px;
  font-size: 15px;
  line-height: 24px;
}
.about-card-row {
  display: grid;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-divider);
}
.about-card-row--last {
  padding-bottom: 0;
  border-bottom: 0;
}
.about-card dt {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: 18px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.about-card dd {
  margin: 0;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}
.about-card dd.no-muted {
  color: inherit;
}

/* — enquiries — */
.enquiry-section {
  padding: 0 0 72px;
}
.enquiry-title {
  font-family: var(--font-heading);
  font-weight: var(--font-heading-weight);
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.1;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0;
  max-width: 30ch;
}
.enquiry-text {
  font-size: 16px;
  line-height: 24px;
  margin: 20px 0 0;
  max-width: 58ch;
  color: color-mix(in srgb, var(--color-text) 78%, transparent);
}
.enquiry-actions {
  margin-top: 28px;
}

/* — footer — */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  padding: 24px 0 48px;
  border-top: 1px solid var(--color-divider);
  font-size: 13px;
  line-height: 24px;
  color: color-mix(in srgb, var(--color-text) 70%, transparent);
}