/* ============================================================
   Rooted & Wired — shared base styles
   Consumes only semantic tokens defined in each site's theme.css:

   --ground        page background
   --ground-2      alternate section background
   --panel         card / panel background
   --ink           primary text
   --ink-2         muted text
   --accent        brand accent (large elements only)
   --accent-ink    AA-safe accent for small text & links
   --accent-soft   pale accent tint (chips, callouts)
   --deep          dark band background
   --deep-ink      text on dark band
   --deep-ink-2    muted text on dark band
   --line          hairline rules & borders
   --font-display  headline family
   --font-body     body family
   ============================================================ */

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: var(--lh-tight);
  margin: 0 0 var(--s-4);
  color: var(--ink);
  font-weight: 600;
  text-wrap: balance;
}

h1 { font-size: var(--fs-hero); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-lg); line-height: var(--lh-snug); }
h4 { font-size: var(--fs-md); line-height: var(--lh-snug); }

p {
  margin: 0 0 var(--s-4);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: var(--accent-ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  text-decoration-thickness: 2px;
}

ul, ol {
  margin: 0 0 var(--s-4);
  padding-left: 1.2em;
}

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

::selection {
  background: var(--accent-soft);
}

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

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

.container--narrow {
  max-width: var(--container-narrow);
}

.section {
  padding-block: clamp(3.5rem, 4vw + 2.5rem, 6.5rem);
}

.section--tight {
  padding-block: clamp(2.5rem, 3vw + 1.5rem, 4.5rem);
}

.section--alt {
  background: var(--ground-2);
}

.section--deep {
  background: var(--deep);
  color: var(--deep-ink);
}

.section--deep h2,
.section--deep h3,
.section--deep h4 {
  color: var(--deep-ink);
}

.section--deep p {
  color: var(--deep-ink-2);
}

.section--deep a:not(.btn) {
  color: var(--deep-ink);
}

.section-head {
  max-width: 44rem;
  margin-bottom: clamp(1.75rem, 3vw, 3rem);
}

.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: block;
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: var(--s-3);
}

.section--deep .eyebrow {
  color: var(--deep-ink-2);
}

.lede {
  font-size: var(--fs-md);
  color: var(--ink-2);
  max-width: 40rem;
}

.grid {
  display: grid;
  gap: clamp(1rem, 2vw, 1.75rem);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 60rem) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 40rem) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* ---------- Skip link ---------- */

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--deep);
  color: var(--deep-ink);
  padding: var(--s-3) var(--s-5);
  z-index: 100;
  border-radius: 0 0 var(--radius) 0;
}

.skip-link:focus {
  left: 0;
}

/* ---------- Demo strip (R&W concept banner) ---------- */

.demo-strip {
  background: #879571;
  color: rgba(250, 252, 251, 0.88);
  font-size: var(--fs-xs);
  letter-spacing: 0.03em;
}

.demo-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--s-4);
  min-height: 2.4rem;
  flex-wrap: wrap;
  padding-block: 0.4rem;
}

.demo-strip a {
  color: #fafcfb;
  text-decoration: none;
  font-weight: 600;
}

.demo-strip a:hover {
  text-decoration: underline;
}

.demo-strip__links {
  display: flex;
  gap: var(--s-5);
}

.demo-strip__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
}

.demo-strip__logo {
  height: 30px;
  width: auto;
  border-radius: 3px;
  padding: 2px 5px;
  background: #fafcfb;
  display: block;
  flex-shrink: 0;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-5);
  min-height: 4.25rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
  line-height: 1.1;
  letter-spacing: -0.01em;
}

.brand small {
  display: block;
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-2);
  margin-top: 2px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(0.9rem, 1.6vw, 1.6rem);
}

.site-nav > a:not(.btn) {
  color: var(--ink);
  text-decoration: none;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: var(--s-2) 0;
  border-bottom: 2px solid transparent;
}

.site-nav > a:not(.btn):hover {
  border-bottom-color: var(--accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--ink);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 600;
  padding: var(--s-2) var(--s-4);
  cursor: pointer;
}

@media (max-width: 56rem) {
  .nav-toggle { display: inline-block; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--ground);
    border-bottom: 1px solid var(--line);
    padding: var(--s-4) var(--gutter) var(--s-6);
    box-shadow: var(--shadow-2);
  }

  .site-nav.is-open { display: flex; }

  .site-nav > a:not(.btn) {
    padding: var(--s-3) 0;
    border-bottom: 1px solid var(--line);
    font-size: var(--fs-base);
  }

  .site-nav > .btn {
    margin-top: var(--s-4);
    text-align: center;
  }
}

/* Simple nav variant (guide pages): always visible, no toggle */
.site-nav.site-nav--simple {
  display: flex;
  position: static;
  flex-direction: row;
  align-items: center;
  gap: clamp(0.9rem, 1.6vw, 1.6rem);
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 0;
}

.site-nav.site-nav--simple > a:not(.btn) {
  border-bottom: 2px solid transparent;
  font-size: var(--fs-sm);
  padding: var(--s-2) 0;
}

.site-nav.site-nav--simple > a:not(.btn):hover {
  border-bottom-color: var(--accent);
}

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

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: var(--radius-sm);
  padding: 0.8rem 1.5rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              background-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-1);
}

.btn:active {
  transform: translateY(0);
}

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

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

.btn--secondary {
  background: transparent;
  color: var(--ink);
  border-color: currentColor;
}

.btn--on-deep {
  background: var(--deep-ink);
  color: var(--deep);
}

.btn--outline-deep {
  background: transparent;
  color: var(--deep-ink);
  border-color: var(--deep-ink-2);
}

.btn--sm {
  padding: 0.55rem 1.1rem;
}

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

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(1.4rem, 2vw, 2rem);
}

.card h3 {
  margin-bottom: var(--s-3);
}

.card p {
  color: var(--ink-2);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.card--lift {
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
}

.card--lift:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-2);
}

/* ---------- Stats / indicators ---------- */

.stat {
  border-top: 3px solid var(--accent);
  padding-top: var(--s-4);
}

.stat__value {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  line-height: 1;
  color: var(--ink);
  display: block;
  margin-bottom: var(--s-2);
  font-variant-numeric: tabular-nums;
}

.stat__label {
  font-size: var(--fs-sm);
  color: var(--ink-2);
  margin: 0;
}

.data-note {
  font-size: var(--fs-xs);
  color: var(--ink-2);
  font-style: italic;
}

/* ---------- Takeaway blocks ---------- */

.takeaway {
  border-left: 3px solid var(--accent);
  padding-left: var(--s-5);
}

.takeaway h3 {
  font-size: var(--fs-md);
  margin-bottom: var(--s-2);
}

.takeaway p {
  color: var(--ink-2);
  font-size: var(--fs-sm);
  margin: 0;
}

/* ---------- Chips ---------- */

.chip {
  display: inline-block;
  background: var(--accent-soft);
  color: var(--ink);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  padding: 0.3rem 0.85rem;
}

/* ---------- Image placeholders (art-directed) ---------- */

.ph {
  margin: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ground-2);
}

.ph__art {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  background:
    linear-gradient(150deg,
      var(--accent-soft) 0%,
      color-mix(in srgb, var(--accent) 26%, var(--ground-2)) 100%);
}

.ph__art--wide { aspect-ratio: 16 / 9; }
.ph__art--tall { aspect-ratio: 3 / 4; }

.ph__art svg {
  width: 44%;
  max-width: 200px;
  opacity: 0.85;
}

.ph figcaption {
  font-size: var(--fs-xs);
  color: var(--ink-2);
  padding: var(--s-3) var(--s-4);
  border-top: 1px solid var(--line);
  background: var(--panel);
}

/* Real photo replacements */
.ph__img {
  width: 100%;
  display: block;
  object-fit: cover;
}
.ph__img--tall { aspect-ratio: 3 / 4; }
.ph__img--wide { aspect-ratio: 16 / 9; }

/* Editorial photo strips */
.photo-strip {
  display: grid;
  gap: var(--s-4);
}
.photo-strip--3 { grid-template-columns: repeat(3, 1fr); }
.photo-strip--2 { grid-template-columns: repeat(2, 1fr); }
.photo-strip img {
  width: 100%;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
}
.photo-strip--3 img { aspect-ratio: 4 / 3; }
.photo-strip--2 img { aspect-ratio: 3 / 2; }
@media (max-width: 40rem) {
  .photo-strip--3, .photo-strip--2 { grid-template-columns: 1fr; }
}

/* ---------- Forms ---------- */

.form-grid {
  display: grid;
  gap: var(--s-4);
  grid-template-columns: repeat(2, 1fr);
}

.form-grid .form-field--full {
  grid-column: 1 / -1;
}

@media (max-width: 40rem) {
  .form-grid { grid-template-columns: 1fr; }
}

.form-field label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 700;
  margin-bottom: var(--s-2);
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  font: inherit;
  font-size: var(--fs-sm);
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.75rem 0.9rem;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: 2px solid var(--accent-ink);
  outline-offset: 1px;
  border-color: var(--accent-ink);
}

.form-note {
  font-size: var(--fs-xs);
  color: var(--ink-2);
  margin-top: var(--s-3);
}

.form-success {
  border: 1px solid var(--accent);
  background: var(--accent-soft);
  color: var(--ink);
  border-radius: var(--radius);
  padding: var(--s-5);
  font-weight: 600;
}

form.is-submitted .form-body {
  display: none;
}

/* ---------- Accordion (native details) ---------- */

.faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  margin-bottom: var(--s-3);
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
  font-size: var(--fs-sm);
  padding: var(--s-4) var(--s-5);
  list-style: none;
  position: relative;
  padding-right: 3rem;
}

.faq summary::-webkit-details-marker { display: none; }

.faq summary::after {
  content: "+";
  position: absolute;
  right: var(--s-5);
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--accent-ink);
}

.faq details[open] summary::after {
  content: "–";
}

.faq details > div {
  padding: 0 var(--s-5) var(--s-5);
  font-size: var(--fs-sm);
  color: var(--ink-2);
}

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--deep);
  color: var(--deep-ink);
  border-radius: var(--radius-lg);
  padding: clamp(2.25rem, 4vw, 3.75rem);
}

.cta-band h2,
.cta-band h3 {
  color: var(--deep-ink);
}

.cta-band p {
  color: var(--deep-ink-2);
}

.cta-band .btn-row {
  margin-top: var(--s-5);
}

.btn-row {
  display: flex;
  gap: var(--s-4);
  flex-wrap: wrap;
}

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

.site-footer {
  background: var(--deep);
  color: var(--deep-ink-2);
  padding-block: var(--s-8) var(--s-6);
  font-size: var(--fs-sm);
}

.site-footer h4 {
  color: var(--deep-ink);
  font-size: var(--fs-base);
  margin-bottom: var(--s-3);
}

.site-footer a {
  color: var(--deep-ink);
  text-decoration: none;
}

.site-footer a:hover {
  text-decoration: underline;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: clamp(1.5rem, 4vw, 4rem);
  padding-bottom: var(--s-6);
  border-bottom: 1px solid color-mix(in srgb, var(--deep-ink) 18%, transparent);
  margin-bottom: var(--s-5);
}

@media (max-width: 48rem) {
  .footer-grid { grid-template-columns: 1fr; }
}

.footer-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-grid li {
  margin-bottom: var(--s-2);
}

.footer-base {
  display: flex;
  justify-content: space-between;
  gap: var(--s-4);
  flex-wrap: wrap;
  font-size: var(--fs-xs);
}

.concept-note {
  font-style: italic;
  margin: 0;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  font-weight: 700;
  color: var(--deep-ink);
  margin-bottom: var(--s-3);
}

/* ---------- Reveal on scroll ---------- */

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity var(--dur-reveal) var(--ease-out),
              transform var(--dur-reveal) var(--ease-out);
}

[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* ---------- Guide layout ---------- */

.guide-hero {
  padding-block: clamp(3rem, 5vw, 5rem);
  border-bottom: 1px solid var(--line);
}

.guide-hero .chip {
  margin-bottom: var(--s-4);
}

.guide-section {
  padding-block: clamp(2.5rem, 4vw, 4rem);
  border-bottom: 1px solid var(--line);
}

.guide-section:last-of-type {
  border-bottom: none;
}

.guide-section h2 {
  font-size: var(--fs-xl);
}

.guide-num {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--accent-ink);
  display: block;
  margin-bottom: var(--s-2);
}

.guide-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(1.5rem, 4vw, 4rem);
}

@media (max-width: 52rem) {
  .guide-grid { grid-template-columns: 1fr; }
}

.swatch-row {
  display: flex;
  gap: var(--s-3);
  flex-wrap: wrap;
  margin-block: var(--s-4);
}

.swatch {
  width: 5.4rem;
}

.swatch i {
  display: block;
  height: 3rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
}

.swatch span {
  font-size: 0.7rem;
  color: var(--ink-2);
  display: block;
  margin-top: var(--s-1);
  line-height: 1.3;
}

.checklist {
  list-style: none;
  padding: 0;
}

.checklist li {
  padding-left: 1.8em;
  position: relative;
  margin-bottom: var(--s-3);
}

.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent-ink);
  font-weight: 700;
}