/* ==========================================================================
   site.css — per-site layout & components, built FROM tokens.

   HARD RULE (house-tech-spec §3): no raw hex, no px/rem size literals, no
   font-name literals in this file. Tokens only. The Critic greps for it.
   The two escape hatches are the house breakpoints and an explicit
   `@allow-literal: reason` comment on the preceding line.

   WHAT THE SKELETON SHIPS HERE, AND WHY IT SHIPS SO LITTLE
   --------------------------------------------------------
   Only the shell: header/nav, the section rhythm hook, buttons, the form, the
   footer. That is everything a site needs structurally and nothing that
   decides how it looks.

   The skeleton deliberately ships NO hero, NO card grid, NO feature row, NO
   testimonial block and NO section-heading pattern. Those come from the
   approved brief's layout archetype (design-rules §7) and are written per
   site. A skeleton that shipped them would hand every business the same page
   with different colours — which is the exact failure the DNA registry
   exists to prevent, and it would collide head-on with the banned-defaults
   list (design-rules §4: three-card grids, four-stat rows, centred hero with
   two pill buttons, every section the same padding with a centred heading).

   And when a brief's archetype numbers its sections, its sub-lists take a
   visibly different mark — different numeral system, face and colour role —
   or no mark at all (design-rules §4, "two counters in one costume").

   Builder: extend this file with the brief's components. Do not "fill in" a
   hero here from memory — the brief is law (spec §12).
   ========================================================================== */

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

.container {
  width: 100%;
  max-width: var(--layout-container);
  margin-inline: auto;
  padding-inline: var(--layout-gutter);
}

/* Vertical rhythm hook. --section-gap is the only inter-section spacing value
   on a site (design-rules §7.1); the brief picks which scale step it is. */
.section {
  padding-block: var(--section-gap);
}

.measure {
  max-width: var(--layout-measure);
}

/* --- Header & navigation --------------------------------------------------
   Progressive enhancement: with JS off the nav list is a plain, always-visible
   list of links and the toggle stays [hidden] (it ships hidden in the HTML;
   main.js reveals it). With JS on, narrow viewports collapse the list behind
   the toggle. Nothing about navigation depends on JavaScript.              */

.site-header {
  position: relative;
  z-index: var(--z-header);
  padding-block: var(--space-sm);
  border-bottom: var(--border-hairline) var(--border-style) var(--color-border);
  background-color: var(--color-bg);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
}

.site-header__brand {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--font-weight-display);
  text-decoration: none;
  letter-spacing: var(--tracking-tight);
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-xs);
  /* The nav-toggle's only shape is this hairline, so it is a CONTROL boundary
     (WCAG 1.4.11, >= 3:1), not a decorative one — use --color-border-strong. */
  border: var(--border-hairline) var(--border-style) var(--color-border-strong);
  border-radius: var(--radius-sm);
  font-size: var(--text-small);
  font-weight: var(--font-weight-body-strong);
}

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

.site-nav__link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  font-size: var(--text-small);
  font-weight: var(--font-weight-body-strong);
}

.site-nav__link:hover,
.site-nav__link:focus-visible {
  text-decoration: underline;
  text-underline-offset: var(--space-3xs);
}

/* QA r3 FIX perf/cls (this skeleton-level defect was confirmed present,
   verbatim, on every site built from it -- see
   runs/3-elements-landscaping-asheville-nc/qa/critic-round-2.md): the
   collapsed state used to apply only once a deferred `type="module"`
   script called `initNav()` and set `[data-nav-ready]`, so the full nav
   list rendered open at first paint and then collapsed into the hamburger
   AFTER first contentful paint -- a timing race with no fixed outcome that
   shifted the whole header (and everything below it) and scored CLS
   0.066-0.094 in the majority of Lighthouse runs. Inverting the default
   removes the race entirely: closed is now the plain CSS default below
   48em, with no JS gate, so there is nothing left to collapse post-paint.
   The one visitor this would otherwise strand -- JS off, so
   `[data-nav-ready]` never lands -- gets the nav back via the <noscript>
   stylesheet override in `@shared:head-boilerplate` (index.html/buy.html/
   thanks.html), which ships last in source order and wins the
   display:block/display:none tie on cascade order alone, no
   `!important`. The nav-toggle button already ships `hidden` in the HTML
   and only JS ever clears that, so JS-off visitors never see a dead
   control -- nothing to change there. */
.site-nav {
  display: none;
}

[data-nav-ready] .site-nav[data-nav-open='true'] {
  display: block;
  flex-basis: 100%;
}

@media (min-width: 48em) {
  .site-nav {
    display: block;
  }

  [data-nav-ready] .nav-toggle {
    display: none;
  }
}

/* --- Buttons --------------------------------------------------------------
   Two roles, no more. Radius, weight and colour all come from the brief via
   tokens — including --radius-none, which is a legitimate answer.          */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2xs);
  padding: var(--space-xs) var(--space-md);
  border: var(--border-hairline) var(--border-style) transparent;
  border-radius: var(--radius-sm);
  font-weight: var(--font-weight-body-strong);
  line-height: var(--leading-snug);
  text-align: center;
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.btn--primary {
  background-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn--quiet {
  /* Outline button: the border is the whole control, so it takes the 3:1
     control-boundary token, not the decorative hairline (WCAG 1.4.11). */
  border-color: var(--color-border-strong);
  color: var(--color-ink);
}

/* --- Form -----------------------------------------------------------------
   One form per site (spec §6). POSTs to the endpoint constant in main.js;
   works as a plain HTML POST with JS off; auto-hides when no endpoint is
   configured so a spec site never shows a dead form.                       */

.form {
  display: grid;
  gap: var(--space-md);
  max-width: var(--layout-measure);
}

.field {
  display: grid;
  gap: var(--space-3xs);
}

.field__label {
  font-size: var(--text-small);
  font-weight: var(--font-weight-body-strong);
}

.field__control {
  width: 100%;
  min-height: var(--layout-tap-min);
  padding: var(--space-2xs) var(--space-xs);
  background-color: var(--color-surface);
  color: var(--color-ink);
  border: var(--border-hairline) var(--border-style) var(--color-border);
  border-radius: var(--radius-sm);
}

textarea.field__control {
  min-height: var(--space-3xl);
  resize: vertical;
}

.field__hint {
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

/* Honeypot: present in the DOM for bots, unreachable for humans and assistive
   tech. Not display:none — some bots skip those. */
.form__trap {
  position: absolute;
  /* @allow-literal: off-canvas parking position, not a design value */
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form__status {
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

.form__status[data-state='error'] {
  color: var(--color-ink);
  font-weight: var(--font-weight-body-strong);
}

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

.site-footer {
  padding-block: var(--space-xl);
  border-top: var(--border-hairline) var(--border-style) var(--color-border);
  font-size: var(--text-small);
}

.site-footer a {
  text-underline-offset: var(--space-3xs);
}

.site-footer__nap {
  font-style: normal;
}

/* ==========================================================================
   whatcom-gutter-co-lynden-wa — brief components (band-rhythm, warm-craft).
   Every component below is built from tokens only, per the brief's section
   plan (runs/whatcom-gutter-co-lynden-wa/brief.md §5).
   ========================================================================== */

/* --- Eyebrow ----------------------------------------------------------------
   Authored in natural case in the HTML (house-tech-spec §8); this is what
   uppercases it. */

.eyebrow {
  font-size: var(--text-eyebrow);
  line-height: var(--leading-snug);
  font-weight: var(--font-weight-body-strong);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  margin-block-end: var(--space-2xs);
}

/* --- Hero --------------------------------------------------------------------
   Brief §5.0/§5.1. DOM order is fixed (design-rules §7.2 rule 1): eyebrow →
   h1 → primary CTA → field → lead → facts. At >=64em the field moves beside
   the text via grid-template-areas ONLY — the DOM order above never changes,
   so the same source order that satisfies the fold arithmetic is also the
   reading and tab order at every width. */

.hero {
  background-color: var(--color-bg);
  padding-block-start: var(--space-lg);
  padding-block-end: var(--section-gap);
}

/* row-gap is deliberately 0: the brief's §5.0 cumulative-y arithmetic sets
   every gap explicitly as a margin on the element that owns it (eyebrow 8px,
   h1 16px, CTA 24px, field 0 — field-bottom and lead-top land at the same y),
   so a grid row-gap would double up on top of those margins. column-gap
   (desktop only, brief's stated 40px) is the one gap this grid itself owns. */
.hero__grid {
  display: grid;
  grid-template-areas: 'top' 'art' 'bottom';
  row-gap: 0;
}

.hero__top { grid-area: top; }
.hero__art-wrap { grid-area: art; margin-block-start: var(--space-md); }
.hero__bottom { grid-area: bottom; }

.hero__title {
  font-size: var(--text-hero);
  margin-block-end: var(--space-sm);
}

.hero__title em {
  font-style: italic;
  font-weight: var(--font-weight-display-emphasis);
  color: var(--color-accent);
}

.hero__top > p:last-child {
  margin-block-end: 0;
}

/* Field: fixed height at mobile (brief §5.0 — 260px, 100% of it above the
   375x667 fold). Free-flowing (aspect-ratio driven) from >=64em, where the
   fold is no longer a binding constraint. */
.hero__art-wrap {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  /* 260px exactly — brief §5.0's fixed mobile field height, 100% of it above
     the 375x667 fold. */
  block-size: calc(var(--space-3xl) + var(--space-xl) + var(--space-lg) + var(--space-xs));
}

/* The photograph and its trace overlay share the exact same box, so the
   overlay's preserveAspectRatio="xMidYMid slice" crops identically to the
   photo's object-fit: cover — the default (centered) crop on both, never
   customised on one without the other. */
.hero__img {
  display: block;
  inline-size: 100%;
  block-size: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__trace {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
}

.hero__bottom {
  display: grid;
  gap: var(--space-xs);
  margin-block-start: 0;
}

.hero__lead {
  color: var(--color-ink-muted);
  font-size: var(--text-lead);
}

.hero__facts {
  font-weight: var(--font-weight-body-strong);
}

/* Between the mobile fixed-height field (brief §5.0's exact 260px) and the
   two-column desktop column, a fluid width against a fixed 260px height
   stretches the crop far wider than the artwork was composed for (measured:
   the corner/downspout pushed almost entirely out of frame by 768px). An
   aspect-ratio step here is a delivery-mechanical fix to that stretch, not a
   brief value — the brief states no tablet number to reproduce. */
@media (min-width: 48em) {
  .hero__art-wrap {
    block-size: auto;
    aspect-ratio: 3 / 2;
  }
}

@media (min-width: 64em) {
  .hero__grid {
    grid-template-columns: 44fr 56fr;
    grid-template-areas: 'top   art' 'bottom art';
    column-gap: var(--space-lg);
    row-gap: var(--space-lg);
    align-items: start;
  }

  .hero__art-wrap {
    block-size: 100%;
    aspect-ratio: 4 / 5;
    margin-block-start: 0;
  }
}

/* --- Living-hero signature: the trough draws once, a glint settles, one
   droplet loops (brief §7). Durations are the brief's own tokens, deliberately
   outside the house reveal trio — this is a one-shot device, not a reveal. */

.trough-line {
  stroke-dasharray: 460;
  stroke-dashoffset: 460;
  animation: whatcom-draw-trough var(--duration-hero-draw) var(--ease-hero-draw) var(--delay-hero-draw) forwards;
}

@keyframes whatcom-draw-trough {
  to { stroke-dashoffset: 0; }
}

.glint {
  opacity: 0;
  animation: whatcom-settle-glint var(--duration-hero-glint) var(--ease-out) var(--delay-hero-glint) forwards;
}

@keyframes whatcom-settle-glint {
  to { opacity: 0.9; }
}

.droplet {
  opacity: 0;
  animation: whatcom-fall-droplet var(--duration-hero-droplet) var(--ease-in-out) var(--delay-hero-glint) infinite;
}

/* cy is animated in the SVG's own viewBox units (not CSS pixels), so the fall
   stays proportional to the artwork at every rendered size — a transform in
   CSS pixels would not. */
@keyframes whatcom-fall-droplet {
  0% { cy: 600; opacity: 0; }
  8% { opacity: 1; }
  86% { cy: 860; opacity: 1; }
  100% { cy: 900; opacity: 0; }
}

/* Reduced motion: the hero freezes to its finished state, never mid-motion —
   a frozen droplet would read as a rendering error, so it hides instead
   (brief §7's explicit reduced-motion statement). base.css's kill switch
   collapses the house reveal trio; these three are one-shot end-states with
   their own tokens, so they are frozen explicitly here. */
@media (prefers-reduced-motion: reduce) {
  .trough-line { animation: none; stroke-dashoffset: 0; }
  .glint { animation: none; opacity: 0.9; }
  .droplet { animation: none; opacity: 0; }
}

/* --- Trust strip (brief §5.2) ----------------------------------------------- */

.trust {
  padding-block: var(--space-lg);
}

.trust__list {
  display: grid;
  gap: var(--space-sm) var(--space-lg);
  margin-block-end: var(--space-md);
}

@media (min-width: 48em) {
  .trust__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.trust__item {
  padding-inline-start: var(--space-md);
  border-inline-start: var(--border-thick) var(--border-style) var(--color-accent);
  font-weight: var(--font-weight-body-strong);
}

.trust__proof {
  color: var(--color-ink-muted);
  font-size: var(--text-lead);
}

.trust__proof strong {
  color: var(--color-ink);
}

/* --- Services: band-rhythm, the four anchored blocks (brief §5.3) ---------- */

.services__title,
#services-title {
  margin-block-end: var(--space-lg);
}

.bands {
  display: flex;
  flex-direction: column;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: var(--border-hairline) var(--border-style) var(--color-border);
}

.band {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-sm) var(--space-md);
  padding: var(--space-lg);
}

.band:nth-child(odd) {
  background-color: var(--color-surface);
}

.band:nth-child(even) {
  background-color: var(--color-bg);
}

.band + .band {
  border-block-start: var(--border-hairline) var(--border-style) var(--color-border);
}

/* The one repeated ornament: the band numeral. Fixed at 2.4ch, italic serif,
   accent colour — the numeral system distinction from the body sans
   (design-rules §5's nested-counter rule), and the page's only enumerated
   list (brief §3). */
.band__num {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: var(--font-weight-display-emphasis);
  font-size: var(--text-h3);
  color: var(--color-accent);
  inline-size: var(--layout-band-num);
  line-height: 1;
}

.band__body {
  display: grid;
  gap: var(--space-sm);
  align-content: start;
}

.band__heading {
  font-size: var(--text-h3);
}

.band__img {
  --band-img-width: calc(var(--space-3xl) + var(--space-lg));
  inline-size: 100%;
  max-inline-size: var(--band-img-width);
  block-size: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius-sm);
}

.services__explainer {
  display: grid;
  gap: var(--space-2xs);
  padding-inline-start: var(--space-md);
  border-inline-start: var(--border-hairline) var(--border-style) var(--color-border);
}

.services__explainer-lead {
  color: var(--color-ink-muted);
}

.services__explainer-proof {
  font-weight: var(--font-weight-body-strong);
  color: var(--color-accent);
}

@media (min-width: 48em) {
  .band__body {
    grid-template-columns: 1fr var(--band-img-width);
    column-gap: var(--space-lg);
  }

  .band__heading,
  .band__body > p,
  .services__explainer {
    grid-column: 1;
  }

  .band__img {
    grid-column: 2;
    grid-row: 1 / -1;
    align-self: start;
    max-inline-size: none;
  }
}

/* --- Reviews (brief §5.6) ---------------------------------------------------
   No fixed heights, no equal-card grid, no truncation, no numbering — every
   review is whole and verbatim. */

.reviews__stat {
  color: var(--color-ink-muted);
  margin-block-end: var(--space-lg);
}

.reviews__list {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 48em) {
  .reviews__list {
    grid-template-columns: repeat(2, 1fr);
  }
}

.review {
  padding: var(--space-md);
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  display: grid;
  gap: var(--space-sm);
}

.review__quote p {
  margin: 0;
}

.review__attrib {
  font-size: var(--text-small);
  color: var(--color-ink-muted);
}

/* --- Service area (brief §5.7) ---------------------------------------------- */

.area p {
  color: var(--color-ink-muted);
  font-size: var(--text-lead);
}