/* UK Silver Terrace — utility-first tokens & composition */
@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@500;600;700;800&family=IBM+Plex+Mono:wght@500;600&family=Source+Sans+3:ital,wght@0,400;0,600;1,400&display=swap');

:root {
  --cream: #f5f0e6;
  --cream-deep: #ebe4d4;
  --green: #1b5e3b;
  --green-deep: #13452c;
  --green-soft: #d8ebe0;
  --ink: #1a1a18;
  --ink-muted: #4a4a44;
  --line: #1b5e3b;
  --space-1: 0.35rem;
  --space-2: 0.7rem;
  --space-3: 1.15rem;
  --space-4: 1.75rem;
  --space-5: 2.75rem;
  --space-6: 4.25rem;
  --max: 72rem;
  --font-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Sans 3", "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --radius: 0;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--ink);
  background-color: var(--cream);
  background-image: radial-gradient(ellipse 70% 55% at 88% 8%, rgba(27, 94, 59, 0.14), transparent 58%);
  background-attachment: fixed;
  min-height: 100vh;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--green); font-weight: 700; text-decoration: none; }
a:hover { color: var(--green-deep); }
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-3);
}
h1 { font-size: clamp(2.1rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.55rem, 3.2vw, 2.15rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 var(--space-3); }
ul, ol { margin: 0 0 var(--space-3); padding-left: 1.2rem; }
strong { font-weight: 700; }

.mark { background: linear-gradient(transparent 62%, rgba(27, 94, 59, 0.28) 62%); }
.mono { font-family: var(--font-mono); letter-spacing: 0.02em; }
.small { font-size: 0.88rem; }
.muted { color: var(--ink-muted); }
.caps {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.wrap {
  width: min(100% - 2rem, var(--max));
  margin-inline: auto;
}
.stack > * + * { margin-top: var(--space-3); }
.stack-tight > * + * { margin-top: var(--space-2); }
.stack-loose > * + * { margin-top: var(--space-5); }
.cluster {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  align-items: center;
}
.cluster-spread { justify-content: space-between; }
.grid-2 {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}
@media (min-width: 720px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}
.grid-split {
  display: grid;
  gap: var(--space-5);
  grid-template-columns: 1fr;
}
@media (min-width: 960px) {
  .grid-split { grid-template-columns: 1.35fr 0.85fr; align-items: start; }
}
.sticky { position: sticky; top: 3.5rem; }

.surface {
  background: var(--cream);
  border: 1px dashed var(--green);
  padding: var(--space-4);
}
.surface-tint { background: var(--green-soft); }
.surface-ink {
  background: var(--green);
  color: var(--cream);
  border: 1px dashed var(--green-deep);
}
.surface-ink a { color: #d8ebe0; }
.band {
  background: var(--cream-deep);
  border-block: 1px dashed var(--green);
  padding-block: var(--space-5);
}
.band-green {
  background: var(--green);
  color: var(--cream);
  border-block: 1px dashed var(--green-deep);
  padding-block: var(--space-5);
}
.band-green a { color: #d8ebe0; }

.rule {
  border: 0;
  border-top: 1px dashed var(--green);
  margin: var(--space-4) 0;
}
.break {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin: var(--space-5) 0;
  color: var(--green);
}
.break::before, .break::after {
  content: "";
  flex: 1;
  border-top: 1px dashed var(--green);
  opacity: 0.55;
}
.break-glyph {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
}

.card {
  border: 0;
  border-bottom: 1px dashed var(--green);
  padding: var(--space-4) 0;
  background: transparent;
  box-shadow: none;
}
.card:last-child { border-bottom: 0; }
.card-row {
  display: grid;
  gap: var(--space-3);
  align-items: center;
}
@media (min-width: 700px) {
  .card-row { grid-template-columns: 5.5rem 1fr auto; }
}
.card-logo {
  width: 5.25rem;
  height: 5.25rem;
  object-fit: contain;
  background: #fff;
  border: 1px dashed var(--green);
  padding: 0.4rem;
}
.card-logo-fallback {
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 0.85rem;
  color: var(--green);
  text-align: center;
  line-height: 1.2;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--green-deep);
  background: var(--green-soft);
  border: 1px dashed var(--green);
  padding: 0.28rem 0.55rem;
}
.badge::before {
  content: "◆";
  font-size: 0.55rem;
  color: var(--green);
}
.badge-on-dark {
  background: rgba(245, 240, 230, 0.12);
  color: var(--cream);
  border-color: rgba(245, 240, 230, 0.45);
}
.badge-on-dark::before { color: var(--cream); }

.stars {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  letter-spacing: 0.08em;
  color: var(--green);
  font-weight: 600;
  white-space: nowrap;
}
.stars-label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: 0.15rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  padding: 0.7rem 1.15rem;
  border: 2px solid var(--green);
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s ease, background-color 0.12s ease, color 0.12s ease;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: var(--green);
  color: var(--cream);
}
.btn-primary:hover {
  background: var(--green-deep);
  color: var(--cream);
  border-color: var(--green-deep);
}
.btn-secondary {
  background: transparent;
  color: var(--green);
}
.btn-secondary:hover {
  background: var(--green-soft);
  color: var(--green-deep);
}
.btn-on-dark {
  background: var(--cream);
  color: var(--green);
  border-color: var(--cream);
}
.btn-on-dark:hover {
  background: var(--cream-deep);
  color: var(--green-deep);
}

.age-bar {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--green);
  color: var(--cream);
  border-bottom: 1px dashed var(--green-deep);
  font-size: 0.82rem;
  padding: 0.45rem 0;
}
.age-bar a { color: #d8ebe0; font-weight: 700; }
.site-header {
  border-bottom: 1px dashed var(--green);
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 2.1rem;
  z-index: 50;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}
.brand:hover { color: var(--green); }
.brand img { width: 2rem; height: 2rem; }
.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.1rem;
  font-size: 0.92rem;
}
.nav a { color: var(--ink); font-weight: 600; }
.nav a:hover { color: var(--green); }
.nav-toggle {
  display: none;
  background: transparent;
  border: 2px solid var(--green);
  color: var(--green);
  font-family: var(--font-display);
  font-weight: 700;
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}
@media (max-width: 820px) {
  .nav-toggle { display: inline-flex; }
  .nav { display: none; width: 100%; flex-direction: column; padding-bottom: var(--space-3); }
  .nav.is-open { display: flex; }
}

.hero-split {
  display: grid;
  gap: var(--space-5);
  padding-block: var(--space-5);
}
@media (min-width: 960px) {
  .hero-split {
    grid-template-columns: 1.25fr 0.9fr;
    min-height: 68vh;
    align-items: stretch;
  }
}
.hero-rail {
  background: var(--green);
  color: var(--cream);
  border: 1px dashed var(--green-deep);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.hero-rail .stat {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  line-height: 1;
}
.hero-visual {
  width: 100%;
  border: 1px dashed var(--green);
  object-fit: cover;
  max-height: 280px;
}
@media (min-width: 960px) {
  .hero-visual { max-height: none; flex: 1; }
}

.notice {
  border: 1px dashed var(--green);
  padding: var(--space-3);
  background: var(--cream);
  font-size: 0.92rem;
}
.trust-strip {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
  border: 1px dashed var(--green);
  padding: var(--space-3);
  background: var(--cream);
}
@media (min-width: 700px) {
  .trust-strip { grid-template-columns: repeat(3, 1fr); }
}
.trust-strip .stat {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--green);
  line-height: 1;
}

.rank-block {
  border: 1px dashed var(--green);
  padding: var(--space-4);
  background: var(--cream);
}
.rank-block + .rank-block { margin-top: var(--space-3); }
.rank-list {
  list-style: none;
  padding: 0;
  margin: 0;
  counter-reset: rank;
}
.rank-list li {
  counter-increment: rank;
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  gap: var(--space-2);
  align-items: baseline;
  padding: 0.65rem 0;
  border-bottom: 1px dotted var(--green);
}
.rank-list li:last-child { border-bottom: 0; }
.rank-list li::before {
  content: counter(rank, decimal-leading-zero);
  font-family: var(--font-mono);
  color: var(--green);
  font-weight: 600;
}

.safety-grid {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr;
}
@media (min-width: 640px) {
  .safety-grid { grid-template-columns: 1fr 1fr; }
}
.safety-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px dashed var(--green);
  background: #fff;
  color: var(--ink);
  font-weight: 700;
  min-height: 5.5rem;
}
.safety-card:hover { background: var(--green-soft); color: var(--green-deep); }
.safety-card img {
  width: 4.5rem;
  height: 2.8rem;
  object-fit: contain;
}

.prose-faq > * + * { margin-top: var(--space-4); }
.prose-faq h3 { margin-bottom: var(--space-2); }

.site-footer {
  margin-top: var(--space-6);
  border-top: 1px dashed var(--green);
  padding-block: var(--space-5);
  background: var(--cream-deep);
  font-size: 0.92rem;
}
.footer-mark {
  opacity: 0.18;
  width: 4rem;
  height: 4rem;
  margin-bottom: var(--space-3);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1.1rem;
  margin-bottom: var(--space-3);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 80;
  background: var(--ink);
  color: var(--cream);
  border-top: 2px dashed var(--green);
  padding: var(--space-3);
  display: none;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner a { color: #9fd4b5; }
.cookie-inner {
  width: min(100% - 1rem, var(--max));
  margin-inline: auto;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  justify-content: space-between;
}

.table-wrap { overflow-x: auto; border: 1px dashed var(--green); }
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
th, td {
  text-align: left;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px dotted var(--green);
  vertical-align: top;
}
th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  background: var(--green-soft);
  color: var(--green-deep);
}
.glossary dt {
  font-family: var(--font-display);
  font-weight: 700;
  margin-top: var(--space-3);
}
.glossary dd { margin: 0.25rem 0 0; color: var(--ink-muted); }

.form label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.35rem;
  color: var(--green-deep);
}
.form input, .form textarea, .form select {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px dashed var(--green);
  background: #fff;
  color: var(--ink);
  border-radius: 0;
  margin-bottom: var(--space-3);
}
.form input:focus, .form textarea:focus, .form select:focus {
  outline: 2px solid var(--green);
  outline-offset: 1px;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}
.filters select, .filters button {
  font: inherit;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 0.5rem 0.7rem;
  border: 1px dashed var(--green);
  background: #fff;
  color: var(--ink);
  border-radius: 0;
}
.filters button { cursor: pointer; background: var(--green); color: var(--cream); border-style: solid; border-width: 2px; }
.filters button:active { transform: scale(0.97); }

.pad-y { padding-block: var(--space-5); }
.pad-y-sm { padding-block: var(--space-4); }
.mb-0 { margin-bottom: 0; }
.mt-0 { margin-top: 0; }
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  .btn, .filters button { transition: none; }
  .btn:active, .filters button:active { transform: none; }
}