/* layout.css - page structure: header, bands, hero, inner-page head, footer. Breakpoints: 640px, 960px. */

.container { width: min(100% - 2 * var(--gutter), var(--container)); margin-inline: auto; }
.stack > * + * { margin-top: var(--space-4); }
.stack-lg > * + * { margin-top: var(--space-6); }

/* ---- header: one row of stamped labels, phone and the primary action ---- */
.site-header {
  position: sticky; top: 0; z-index: var(--z-header);
  display: flex; align-items: center; gap: var(--space-5);
  min-height: var(--header-h);
  padding-inline: var(--gutter);
  background: var(--surface);
  border-bottom: 2px solid var(--espresso);
}
.brand { display: inline-flex; align-items: center; gap: var(--space-3); min-height: 2.75rem; text-decoration: none; color: var(--ink); }
.brand__mark { display: flex; align-items: flex-end; gap: 3px; height: 1.5rem; }
.brand__mark i { display: block; width: 6px; box-shadow: inset 0 0 0 1.5px var(--espresso); }
.brand__mark i:nth-child(1) { height: 100%; background: var(--tomato-bright); }
.brand__mark i:nth-child(2) { height: 68%; background: var(--teal); }
.brand__mark i:nth-child(3) { height: 42%; background: var(--mustard); }
/* wordmark: Chakra Petch, set letter by letter so each character can move on its own */
.brand__word { display: inline-flex; align-items: baseline; font-family: var(--font-logo); font-weight: 700; font-size: var(--text-logo); line-height: 1; letter-spacing: 0.01em; white-space: nowrap; }
.brand__name { display: inline-flex; }
.brand__name > span { display: inline-block; }
.brand__co { margin-left: 0.3em; color: var(--accent); }
.brand__caret { align-self: flex-end; width: 0.55em; height: 0.15em; margin-left: 0.14em; }
.brand__caret i { display: block; width: 100%; height: 100%; background: var(--tomato-bright); }
.site-footer .brand__co { color: var(--tomato-light); }

.site-nav { display: flex; align-items: center; gap: var(--space-1); margin-inline: auto; }
.site-nav a {
  padding: 0.3rem 0.7rem;
  border: 2px solid transparent;
  font-family: var(--font-display); font-weight: 800; font-size: var(--text-label);
  text-transform: uppercase; letter-spacing: var(--tracking-caps);
  text-decoration: none; color: var(--ink); white-space: nowrap;
}
.site-nav a[aria-current="page"] { color: var(--accent); border-color: var(--accent); transform: rotate(-2deg); }
.site-actions { display: flex; align-items: center; gap: var(--space-4); }
.phone { display: inline-flex; align-items: center; gap: var(--space-2); font-weight: 600; text-decoration: none; color: var(--ink); white-space: nowrap; }
.phone svg { width: 1.1rem; height: 1.1rem; color: var(--accent); }
@media (hover: hover) and (pointer: fine) {
  .site-nav a:hover { background: var(--mustard); }
  .phone:hover { text-decoration: underline; text-decoration-thickness: 2px; }
}

/* ---- bands: full-width coloured fields, one per copy ---- */
.band { position: relative; overflow-x: clip; padding-block: var(--space-section); }
.band--dark { background: var(--espresso); color: var(--text-inverse); --focus: var(--focus-on-dark); --rule: var(--rule-on-dark); }
.band--mustard { background: var(--mustard); }
.band--teal { background: var(--teal); }
.band--linen { background: var(--ground); }
/* on coloured fields secondary text takes the dark ink, not a grey */
.band--mustard, .band--teal, .page-head { --text-muted: var(--espresso); }
.band--white { background: var(--surface); }
.band__head { max-width: 46rem; margin-bottom: var(--space-7); }
.band__head p { margin-top: var(--space-4); font-size: var(--text-lead); max-width: var(--measure); }

/* ---- home hero: a work order with its two copies fanned behind ---- */
.hero { padding-block: clamp(1.25rem, 2.5vw, 2rem) calc(clamp(3rem, 7vw, 6rem) + 5rem); }
/* the data-strata illustration (inline SVG, coloured by tokens) stands behind the sheet stack and fills the band floor */
.hero__art { position: absolute; left: 0; bottom: 0; width: 100%; height: max(11.25rem, 22.2vw); pointer-events: none; }
.hero__art .t { fill: var(--tomato-bright); } .hero__art .m { fill: var(--mustard); } .hero__art .c { fill: var(--teal); }
.hero__art .e { fill: var(--espresso); } .hero__art .l { fill: var(--espresso-lift); } .hero__art .p { fill: var(--paper); }
.hero__art .ln { fill: none; stroke-linecap: round; stroke-linejoin: round; }
.hero__art .sp { stroke: var(--paper); } .hero__art .sm { stroke: var(--mustard); } .hero__art .sc { stroke: var(--teal); }
.hero__art .st { stroke: var(--tomato-bright); } .hero__art .se { stroke: var(--espresso); }
.hero-stack { position: relative; isolation: isolate; max-width: 60rem; margin-inline: auto; }
.hero-stack::before, .hero-stack::after { content: ""; position: absolute; inset: 0; box-shadow: var(--shadow-sheet); }
.hero-stack::before { background: var(--mustard); transform: translate(1rem, 0.9rem) rotate(1.2deg); z-index: -1; }
.hero-stack::after { background: var(--teal); transform: translate(2rem, 1.8rem) rotate(2.4deg); z-index: -2; }

/* ---- inner-page head: big form title with the copy legend at the side ---- */
.page-head { background: var(--mustard); padding-block: clamp(2.5rem, 6vw, 5rem) clamp(2rem, 5vw, 4rem); }
.page-head .container { display: grid; gap: var(--space-5) var(--space-8); grid-template-columns: minmax(0, 1fr); align-items: end; }
.page-head h1 { font-size: var(--display); max-width: 14ch; }
.page-head__lede { font-size: var(--text-lead); max-width: 40rem; margin-top: var(--space-5); }
@media (min-width: 960px) {
  .page-head .container { grid-template-columns: minmax(0, 1fr) auto; }
}

/* ---- two-column bands ---- */
.split { display: grid; gap: var(--space-7); grid-template-columns: minmax(0, 1fr); }
@media (min-width: 960px) {
  .split { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: var(--space-9); align-items: start; }
  .split--even { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
}

/* ---- footer ---- */
.site-footer { background: var(--espresso); color: var(--text-inverse); --focus: var(--focus-on-dark); padding-block: var(--space-8) var(--space-6); }
.site-footer a { color: var(--text-inverse); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 0.22em; }
.site-footer .container { display: grid; gap: var(--space-6) var(--space-8); grid-template-columns: minmax(0, 1fr); }
.site-footer__brand .brand { color: var(--text-inverse); }
.site-footer address { font-style: normal; }
/* dark fields carry a tone-on-tone circuit print */
.band--dark, .site-footer { background-image: url("../images/circuit-tile.svg"); background-size: 520px; }
.site-footer__legal { grid-column: 1 / -1; padding-top: var(--space-5); border-top: 2px solid var(--rule-on-dark); font-size: var(--text-small); }
@media (min-width: 960px) { .site-footer .container { grid-template-columns: 1.2fr 1fr 1fr; } }

/* ---- narrow screens: brand and actions on one row, the six labels beneath ---- */
@media (max-width: 1200px) {
  :root { --header-h: 6rem; }
  .site-header { flex-wrap: wrap; row-gap: 0; padding-block: var(--space-2) 0; }
  .site-actions { margin-left: auto; }
  .site-actions .btn--small, .phone { min-height: 2.75rem; white-space: nowrap; }
  .site-nav { order: 3; flex: 1 0 100%; justify-content: space-between; margin: 0 calc(-1 * var(--gutter)); padding-inline: var(--space-2); border-top: 2px solid var(--rule); }
  .site-nav a { min-height: 2.75rem; display: inline-flex; align-items: center; font-size: var(--text-nav-phone); letter-spacing: 0.03em; padding-inline: 0.3rem; }
}
@media (max-width: 640px) {
  .phone__text { display: none; }
  .phone { min-width: 2.5rem; justify-content: center; }
  .site-header { column-gap: var(--space-2); }
  .site-actions { gap: var(--space-2); }
  .hero-stack::before { transform: translate(0.5rem, 0.5rem) rotate(0.8deg); }
  .hero-stack::after { transform: translate(1rem, 1rem) rotate(1.6deg); }
}
@media (max-width: 440px) { .brand__word { font-size: var(--text-logo-sm); } .site-actions .btn--small { padding-inline: 0.7rem; } }
@media (max-width: 380px) { .brand__word { font-size: var(--text-logo-xs); } }
@media (max-width: 359px) { .site-nav { padding-inline: 0; } .site-nav a { padding-inline: 0.1rem; letter-spacing: 0.01em; } .brand__mark { display: none; } }

/* long or quiet page titles use the h1 size instead of the display size */
.page-head h1.long, .page-head h1.quiet { font-size: var(--heading-1); max-width: 20ch; }
.page-head h1.quiet { max-width: none; }
.site-footer .brand__mark i { box-shadow: inset 0 0 0 1.5px var(--paper); }

/* form header: every page is a numbered form, prepared for you by DigiStacs */
.formhead { display: grid; gap: var(--space-3); min-width: 15rem; font-size: var(--text-small); }
.formhead > div { display: grid; grid-template-columns: 7.5rem 1fr; align-items: end; gap: var(--space-3); }
.formhead dt { font-family: var(--font-display); font-weight: 800; text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--text-muted); }
.formhead dd { padding-bottom: 2px; border-bottom: 2px solid var(--espresso); font-weight: 700; color: var(--espresso); }

/* tear line: each band is a separate perforated sheet */
.band + .band::before, .band + .site-footer::before {
  content: ""; position: absolute; top: -4px; left: 0; right: 0; height: 8px; z-index: 1;
  background: radial-gradient(circle at 50% 50%, var(--perforation) 0 2.5px, transparent 3px) 0 0 / 16px 8px repeat-x;
}
.site-footer { position: relative; }
.band__head h2 { padding-bottom: var(--space-3); background: var(--rule-b); }
@media (max-width: 640px) { .site-nav { padding-inline: var(--space-3); } .formhead { min-width: 0; } }