/* =============================================
   unofficialwallutra.co.uk – Shared Stylesheet
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Oswald:wght@400;500;600;700&family=Inter:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  /* ── Core palette ── */
  --ink:       #111111;   /* near-black: nav, hero backgrounds */
  --carbon:    #1e1e1e;   /* footer, dark panels */
  --dark:      #111111;   /* body text */
  --slate:     #444444;   /* secondary text */
  --mid:       #777777;   /* captions, labels */
  --smoke:     #f6f6f6;   /* page background */
  --white:     #ffffff;   /* cards, content areas */
  --border:    #e2e2e2;   /* borders, dividers */

  /* ── Brand accents ── */
  --flame:     #ff4d00;   /* primary accent — vivid athletic orange */
  --heather:   #ff4d00;   /* alias — remapped from purple to flame */
  --gold:      #f0a800;   /* warm amber — badges, highlights */
  --green:     #1a8c4e;   /* positive / go / price */
  --red:       #d93025;   /* warnings */
  --sky:       #0072ce;   /* links / info */

  /* ── Legacy aliases (keep for existing HTML) ── */
  --stone:     var(--ink);
  --wall:      #2a2a2a;
  --cream:     #f2efea;
  --light:     var(--smoke);
  --accent:    var(--red);

  /* ── Elevation ── */
  --shadow:    0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.07);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.13);

  /* ── Shape ── */
  --radius:    6px;
  --nav-h:     60px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--smoke);
  color: var(--dark);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ── NAVIGATION ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ink);
  height: var(--nav-h);
  display: flex;
  align-items: center;
  padding: 0 2rem;
  gap: 0;
  border-bottom: 2px solid var(--flame);
}

.nav-brand {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--white);
  text-decoration: none;
  white-space: nowrap;
  margin-right: auto;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-brand span {
  color: var(--flame);
  font-weight: 400;
  margin-left: 0.3rem;
}

.nav-links {
  display: flex;
  gap: 0.1rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  display: block;
  padding: 0.4rem 0.85rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 0.78rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-links a:hover { color: var(--white); background: rgba(255,255,255,0.08); }
.nav-links a.active { color: var(--flame); }

/* ── HERO (home page) ── */
.hero {
  background: var(--ink);
  color: var(--white);
  padding: 6rem 2rem 5rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

/* subtle grid texture */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,77,0,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,77,0,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

/* bottom fade to smoke */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(transparent, var(--smoke));
  pointer-events: none;
}

.hero-tag {
  display: inline-block;
  background: transparent;
  border: 1px solid var(--flame);
  color: var(--flame);
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  padding: 0.3rem 1rem;
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.0;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
}

.hero h1 em {
  color: var(--flame);
  font-style: normal;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.15rem);
  max-width: 600px;
  margin: 0 auto 2.5rem;
  color: rgba(255,255,255,0.72);
  font-weight: 400;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  gap: 0;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 3rem;
  position: relative;
  z-index: 1;
  border-top: 1px solid rgba(255,255,255,0.1);
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding: 2rem 0;
}

.hero-stat {
  text-align: center;
  padding: 0 2.5rem;
  border-right: 1px solid rgba(255,255,255,0.1);
}

.hero-stat:last-child { border-right: none; }

.hero-stat strong {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--flame);
  line-height: 1;
  letter-spacing: -0.01em;
}

.hero-stat span {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  display: block;
  margin-top: 0.4rem;
}

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.18s;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--flame);
  color: var(--white);
}

.btn-primary:hover {
  background: #e84400;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(255,77,0,0.35);
}

.btn-outline {
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--white);
}

.btn-outline:hover {
  border-color: var(--flame);
  color: var(--flame);
}

.btn-amazon {
  background: #ff9900;
  color: #111;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: all 0.18s;
}

.btn-amazon:hover {
  background: #e68900;
  transform: translateY(-1px);
  box-shadow: 0 3px 10px rgba(255,153,0,0.35);
}

.btn-amazon::before { content: '🛒'; }

/* ── MAIN CONTENT ── */
main { max-width: 1100px; margin: 0 auto; padding: 3rem 1.5rem; }

.section-title {
  font-family: 'Oswald', sans-serif;
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.1;
}

.section-title span { color: var(--flame); }

.section-intro {
  color: var(--slate);
  max-width: 680px;
  margin-bottom: 2.5rem;
  font-size: 1rem;
  line-height: 1.75;
}

/* ── CARDS ── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform 0.2s, box-shadow 0.2s;
  border: 1px solid var(--border);
}

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

.card-header {
  padding: 1.25rem 1.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}

.card-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  line-height: 1;
}

.card h3 {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.card-body { padding: 1rem 1.5rem 1.5rem; }

.card-body p { color: var(--slate); font-size: 0.94rem; margin-bottom: 1rem; line-height: 1.65; }

/* ── PRODUCT CARDS ── */
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.product-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-bottom: 3px solid var(--flame);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

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

.product-card.top-pick {
  border-bottom-color: var(--gold);
  position: relative;
}

.top-pick-badge {
  display: inline-block;
  background: var(--gold);
  color: #111;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 0.67rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.25rem 0.75rem;
  border-radius: 2px;
  width: fit-content;
}

.product-card h4 {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1.1rem;
  color: var(--ink);
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.product-card .brand {
  font-size: 0.72rem;
  color: var(--flame);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.product-card p {
  font-size: 0.91rem;
  color: var(--slate);
  flex: 1;
  line-height: 1.65;
}

.product-card .price {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--green);
  letter-spacing: 0.02em;
}

/* ── PRODUCT IMAGES ── */
.product-img-wrap {
  width: 100%;
  text-align: center;
  border-radius: var(--radius);
  overflow: hidden;
  background: #f5f5f5;
  margin-bottom: 0.25rem;
}

.product-img {
  width: 100%;
  height: 190px;
  object-fit: contain;
  display: block;
  padding: 0.75rem;
  transition: transform 0.22s;
}

.product-img:hover { transform: scale(1.04); }

.btn-harrier {
  background: #1d6e42;
  color: var(--white);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: all 0.18s;
}

.btn-harrier:hover { background: #155433; transform: translateY(-1px); }
.btn-harrier::before { content: '🏃'; }

.btn-ratrace {
  background: var(--flame);
  color: var(--white);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  text-decoration: none;
  transition: all 0.18s;
}

.btn-ratrace:hover { background: #e84400; transform: translateY(-1px); }
.btn-ratrace::before { content: '🐀'; }

/* ── FAQ ── */
.faq-list { max-width: 800px; }

details {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

summary {
  padding: 1.1rem 1.5rem;
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  list-style: none;
  user-select: none;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

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

summary::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--flame);
  font-weight: 300;
  transition: transform 0.2s;
  font-family: 'Inter', sans-serif;
}

details[open] summary::after { content: '−'; }
details[open] summary { color: var(--flame); }
details[open] { border-color: var(--flame); }

.faq-body {
  padding: 0 1.5rem 1.25rem;
  color: var(--slate);
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
  line-height: 1.7;
}

.faq-body p + p { margin-top: 0.75rem; }

/* ── INFO BOXES ── */
.info-box {
  background: #f9f9f9;
  border-left: 3px solid var(--flame);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.1rem 1.4rem;
  margin: 1.5rem 0;
  font-size: 0.93rem;
  color: var(--slate);
}

.info-box.tip   { border-color: var(--green); background: #f2faf5; color: #1f4f30; }
.info-box.warning { border-color: var(--red); background: #fff5f4; color: #6b1a14; }
.info-box.gold  { border-color: var(--gold); background: #fffbf0; color: #5a3c00; }

.info-box strong {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

/* ── STAT ROW ── */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}

.stat-box {
  background: var(--ink);
  border-radius: var(--radius);
  padding: 1.25rem 1rem;
  text-align: center;
}

.stat-box strong {
  display: block;
  font-family: 'Oswald', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--flame);
  letter-spacing: -0.01em;
}

.stat-box span {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.55);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  display: block;
  margin-top: 0.35rem;
}

/* ── PAGE HERO (sub-pages) ── */
.page-hero {
  background: var(--ink);
  color: var(--white);
  padding: 3.5rem 2rem 3rem;
  text-align: left;
  max-width: 100%;
  position: relative;
  overflow: hidden;
  border-bottom: 2px solid var(--flame);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,77,0,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,77,0,0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.page-hero h1 {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.05;
  position: relative;
  max-width: 1100px;
  padding: 0 1.5rem;
  margin-left: auto;
  margin-right: auto;
}

.page-hero p {
  opacity: 0.72;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  font-size: 1rem;
  position: relative;
  line-height: 1.65;
}

/* ── SECTION DIVIDER ── */
.section-block { margin-bottom: 3.5rem; }

.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ── PROS / CONS ── */
.pros-cons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0;
}

.pros, .cons {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
}

.pros { border-top: 3px solid var(--green); }
.cons { border-top: 3px solid var(--red); }

.pros h5, .cons h5 {
  font-family: 'Oswald', sans-serif;
  font-weight: 600;
  font-size: 0.82rem;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.pros h5 { color: var(--green); }
.cons h5 { color: var(--red); }

.pros ul, .cons ul {
  list-style: none;
  font-size: 0.9rem;
  color: var(--slate);
}

.pros li::before { content: '✓ '; color: var(--green); font-weight: 700; }
.cons li::before { content: '✗ '; color: var(--red); font-weight: 700; }

/* ── FOOTER ── */
footer {
  background: var(--carbon);
  color: rgba(255,255,255,0.45);
  text-align: center;
  padding: 2.5rem 2rem;
  font-size: 0.83rem;
  line-height: 2;
  border-top: 2px solid var(--flame);
}

footer a { color: var(--flame); text-decoration: none; font-weight: 600; }
footer a:hover { color: var(--gold); }

.footer-disclaimer {
  max-width: 700px;
  margin: 0.75rem auto 0;
  font-size: 0.76rem;
  opacity: 0.55;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { flex-wrap: wrap; height: auto; padding: 0.75rem 1rem; gap: 0.5rem; border-bottom: none; }
  .nav-brand { width: 100%; border-bottom: 1px solid rgba(255,77,0,0.3); padding-bottom: 0.5rem; }
  .nav-links { gap: 0.1rem; }
  .nav-links a { padding: 0.35rem 0.6rem; font-size: 0.72rem; }
  .hero { padding: 3.5rem 1.25rem 2.5rem; }
  .hero-stats { gap: 0; flex-direction: row; flex-wrap: wrap; padding: 1.5rem 0; }
  .hero-stat { padding: 0.75rem 1.25rem; border-right: none; border-bottom: 1px solid rgba(255,255,255,0.08); width: 50%; }
  .hero-stat:nth-child(odd) { border-right: 1px solid rgba(255,255,255,0.08); }
  .pros-cons { grid-template-columns: 1fr; }
  main { padding: 2rem 1rem; }
  .page-hero { text-align: center; padding: 2.5rem 1rem 2rem; }
  .page-hero h1, .page-hero p { padding: 0; }
}