/* ==========================================================================
   Prime Tyres Bolton — stylesheet
   Mobile-first, dark performance-garage theme
   ========================================================================== */

:root {
  --bg: #0a0a0b;
  --bg-alt: #101011;
  --surface: #161617;
  --surface-2: #1e1e20;
  --line: rgba(255, 255, 255, 0.09);
  --text: #f4f4f2;
  --text-dim: #a6a6a0;
  --accent: #ffd60a;
  --accent-soft: rgba(255, 214, 10, 0.12);
  --whatsapp: #25d366;
  --whatsapp-dark: #128c4b;
  --radius: 18px;
  --radius-sm: 12px;
  --font-head: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + env(safe-area-inset-top) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  overflow-x: hidden;
}

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

h1, h2, h3 { font-family: var(--font-head); line-height: 1.12; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 7.5vw, 4.2rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 700; }

.accent { color: var(--accent); }
.lead { color: var(--text-dim); font-size: clamp(1rem, 2.5vw, 1.15rem); max-width: 56ch; }

.container { width: min(1160px, 100% - 2.5rem); margin-inline: auto; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.22em;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid rgba(255, 214, 10, 0.25);
  border-radius: 999px;
  padding: 0.35em 1em;
  margin-bottom: 1rem;
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: #141200; font-weight: 600;
  padding: 0.6rem 1rem; border-radius: 0 0 var(--radius-sm) 0; z-index: 200;
}
.skip-link:focus { left: 0; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.98rem;
  padding: 0.85em 1.6em;
  border-radius: 999px;
  border: 0;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s ease, box-shadow 0.18s ease, background 0.18s ease;
}
.btn svg { width: 1.25em; height: 1.25em; flex: none; }
.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, #ffe14d, var(--accent));
  color: #141200;
  box-shadow: 0 8px 24px rgba(255, 214, 10, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255, 214, 10, 0.45); }

.btn-whatsapp {
  background: linear-gradient(135deg, #2ee06f, var(--whatsapp-dark));
  color: #06140c;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}
.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(37, 211, 102, 0.4); }

.btn-call {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  font-size: 0.9rem;
  padding: 0.65em 1.2em;
}
.btn-call:hover { border-color: var(--accent); color: var(--accent); }

.btn-block { width: 100%; }

.btn-dark {
  background: #141200;
  color: var(--accent);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.btn-dark:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45); }

/* --------------------------------------------------------------------------
   Offer banner
   -------------------------------------------------------------------------- */
.offer-banner {
  background: linear-gradient(135deg, #ffe14d 0%, var(--accent) 100%);
  color: #141200;
  border-block: 1px solid rgba(0, 0, 0, 0.18);
}
.offer-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem 1.5rem;
  flex-wrap: wrap;
  text-align: center;
  padding: 1.1rem 0;
}
.offer-tag {
  font-family: var(--font-head);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.72rem;
  background: #141200;
  color: var(--accent);
  padding: 0.5em 1em;
  border-radius: 999px;
  white-space: nowrap;
}
.offer-text {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: clamp(1.05rem, 3.4vw, 1.5rem);
  margin: 0;
}
.offer-text strong { font-weight: 800; }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  /* Full height = nav bar + the iPhone status bar / notch safe area on top */
  height: calc(var(--header-h) + env(safe-area-inset-top));
  padding-top: env(safe-area-inset-top);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 11, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, background 0.25s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); background: rgba(10, 10, 11, 0.96); }

.nav-row { display: flex; align-items: center; gap: 1rem; }

.brand { display: inline-flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--text); margin-right: auto; }
.brand-mark { width: 36px; height: 36px; color: var(--accent); animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.brand-text {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
}
.brand-text em { font-style: normal; color: var(--accent); display: block; font-size: 0.66rem; letter-spacing: 0.34em; text-transform: uppercase; margin-top: -2px; }

.site-nav ul { display: flex; gap: 1.6rem; list-style: none; }
.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: color 0.15s ease;
}
.site-nav a:hover, .site-nav a:focus-visible { color: var(--accent); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  cursor: pointer;
}
.nav-toggle span { display: block; width: 20px; height: 2px; margin-inline: auto; background: var(--text); border-radius: 2px; transition: transform 0.25s ease, opacity 0.25s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  padding: clamp(2.5rem, 7vw, 5.5rem) 0 0;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(255, 214, 10, 0.14), transparent 60%),
    radial-gradient(700px 420px at -10% 30%, rgba(37, 211, 102, 0.06), transparent 60%),
    var(--bg);
}

.hero-grid { display: grid; gap: 2.5rem; align-items: center; }

.hero-copy .eyebrow { margin-bottom: 1.2rem; }
.hero-copy h1 { margin-bottom: 1.1rem; }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 0.8rem; margin: 1.6rem 0; }

.trust-strip {
  display: flex;
  gap: 1.8rem;
  list-style: none;
  border-top: 1px solid var(--line);
  padding-top: 1.2rem;
  flex-wrap: wrap;
}
.trust-strip li { display: flex; flex-direction: column; }
.trust-strip strong { font-family: var(--font-head); font-size: 1.3rem; color: var(--accent); }
.trust-strip span { font-size: 0.8rem; color: var(--text-dim); }

.hero-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background:
    radial-gradient(circle at 30% 25%, var(--surface-2), var(--surface) 70%);
  min-height: 280px;
}
.hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero-media.img-missing img { display: none; }
.hero-media.img-missing::before {
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(135deg, transparent 0 26px, rgba(255,255,255,0.025) 26px 52px),
    radial-gradient(circle at 50% 45%, rgba(255,214,10,0.16), transparent 55%);
}

.hero-badge {
  position: absolute;
  left: 1rem; bottom: 1rem;
  background: rgba(10, 10, 11, 0.8);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  display: flex;
  flex-direction: column;
}
.badge-big { font-family: var(--font-head); font-weight: 800; font-size: 1.25rem; color: var(--accent); }
.badge-small { font-size: 0.78rem; color: var(--text-dim); }

/* Brand marquee */
.brand-marquee {
  margin-top: clamp(2.5rem, 6vw, 4.5rem);
  border-block: 1px solid var(--line);
  padding: 0.9rem 0;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 2.2rem;
  width: max-content;
  animation: marquee 30s linear infinite;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section {
  padding: clamp(3.5rem, 9vw, 6.5rem) 0;
  /* Chrome skips rendering off-screen sections until scrolled near */
  content-visibility: auto;
  contain-intrinsic-size: auto 720px;
}
.section-alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.section-head { margin-bottom: clamp(2rem, 5vw, 3.2rem); max-width: 640px; }

/* Services */
.card-grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}
.card:hover { transform: translateY(-5px); border-color: rgba(255, 214, 10, 0.4); box-shadow: var(--shadow); }

.card-media {
  aspect-ratio: 16 / 10;
  background: radial-gradient(circle at 40% 30%, var(--surface-2), var(--surface) 75%);
  position: relative;
  overflow: hidden;
}
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.card:hover .card-media img { transform: scale(1.05); }
.card-media.img-missing img { display: none; }
.card-media.img-missing::before {
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(135deg, transparent 0 22px, rgba(255,255,255,0.03) 22px 44px),
    radial-gradient(circle at 50% 60%, rgba(255,214,10,0.12), transparent 60%);
}

.card-body { padding: 1.3rem 1.4rem 1.5rem; }
.card-body h3 { margin-bottom: 0.45rem; }
.card-body p { color: var(--text-dim); font-size: 0.94rem; }

/* Quote */
.quote-grid { display: grid; gap: 2.5rem; align-items: start; }

.sidewall-figure {
  margin-top: 1.4rem;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: radial-gradient(circle at 50% 40%, var(--surface-2), var(--surface) 75%);
  position: relative;
  min-height: 120px;
}
.sidewall-figure.img-missing img { display: none; }
.sidewall-figure.img-missing::before {
  content: "205 / 55 R16";
  position: absolute; inset: 0;
  display: grid; place-items: center;
  font-family: var(--font-head); font-weight: 800;
  font-size: clamp(1.4rem, 4vw, 2rem);
  color: rgba(255, 255, 255, 0.18);
  letter-spacing: 0.1em;
}

.quote-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: clamp(1.4rem, 4vw, 2rem);
  box-shadow: var(--shadow);
}

.size-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 0.9rem; margin-bottom: 0.9rem; }
.size-row label {
  display: flex; flex-direction: column; gap: 0.35rem;
  font-size: 0.78rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim);
}
.size-row select {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23ffd60a' stroke-width='2' fill='none'/%3E%3C/svg%3E") no-repeat right 0.9rem center;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.75rem 2.2rem 0.75rem 0.9rem;
  cursor: pointer;
}
.size-row select:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.size-preview { margin: 0.4rem 0 1.1rem; color: var(--text-dim); font-size: 0.95rem; }
.size-preview strong { color: var(--accent); font-family: var(--font-head); font-size: 1.15rem; letter-spacing: 0.04em; }

.quote-note { margin-top: 0.9rem; font-size: 0.82rem; color: var(--text-dim); text-align: center; }
.quote-note a { color: var(--accent); }

/* Why us */
.why-grid { display: grid; gap: 2.5rem; align-items: center; }

.why-media {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  background: radial-gradient(circle at 40% 35%, var(--surface-2), var(--surface) 75%);
  position: relative;
  min-height: 260px;
}
.why-media img { width: 100%; height: 100%; object-fit: cover; }
.why-media.img-missing img { display: none; }
.why-media.img-missing::before {
  content: "";
  position: absolute; inset: 0;
  background:
    repeating-linear-gradient(135deg, transparent 0 26px, rgba(255,255,255,0.025) 26px 52px),
    radial-gradient(circle at 50% 45%, rgba(255,214,10,0.14), transparent 55%);
}

.feature-list { list-style: none; display: grid; gap: 1.2rem; margin: 0 0 1.8rem; }
.feature-list li { padding-left: 1.2rem; border-left: 3px solid var(--accent); }
.feature-list h3 { font-size: 1.02rem; margin-bottom: 0.2rem; }
.feature-list p { color: var(--text-dim); font-size: 0.92rem; }

.stat-row { display: flex; gap: 2rem; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 1.4rem; }
.stat strong { font-family: var(--font-head); font-size: 1.7rem; font-weight: 800; color: var(--accent); display: block; }
.stat span { font-size: 0.82rem; color: var(--text-dim); }

/* Reviews */
.review-grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
.review {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}
.stars { color: var(--accent); letter-spacing: 0.2em; font-size: 0.95rem; }
.review p { color: var(--text); font-size: 0.97rem; }
.review footer { color: var(--text-dim); font-size: 0.85rem; }

.review-cta { text-align: center; margin-top: clamp(2rem, 5vw, 3rem); }
.review-cta p { color: var(--text-dim); max-width: 46ch; margin: 0 auto 1.2rem; }
.btn-google {
  background: #fff;
  color: #1f1f1f;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
.btn-google:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.45); }

/* FAQ */
.faq-wrap { max-width: 760px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  margin-bottom: 0.8rem;
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.98rem;
  padding: 1.05rem 3rem 1.05rem 1.2rem;
  position: relative;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 1.1rem; top: 50%;
  transform: translateY(-50%);
  font-size: 1.4rem;
  color: var(--accent);
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-item p { padding: 0 1.2rem 1.2rem; color: var(--text-dim); font-size: 0.94rem; }

/* Contact */
.contact-grid { display: grid; gap: 2.5rem; }
.contact-info address { font-style: normal; margin: 1.2rem 0; color: var(--text-dim); }
.contact-info address strong { color: var(--text); }

.hours { display: grid; gap: 0.4rem; margin-bottom: 1.6rem; max-width: 320px; }
.hours div { display: flex; justify-content: space-between; border-bottom: 1px dashed var(--line); padding-bottom: 0.4rem; }
.hours dt { color: var(--text-dim); }
.hours dd { font-weight: 600; }

.contact-ctas { display: flex; flex-wrap: wrap; gap: 0.8rem; }

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  min-height: 320px;
}
.map-wrap iframe { width: 100%; height: 100%; min-height: 320px; border: 0; display: block; filter: grayscale(0.2) contrast(1.05); }

/* Footer */
.site-footer { border-top: 1px solid var(--line); background: var(--bg-alt); padding-top: 3rem; }
.footer-grid { display: grid; gap: 2rem; padding-bottom: 2rem; }
.footer-brand { font-size: 1.2rem; margin-bottom: 0.6rem; }
.site-footer p, .site-footer a { color: var(--text-dim); font-size: 0.92rem; }
.site-footer a { transition: color 0.15s ease; }
.site-footer a:hover { color: var(--accent); }
.site-footer nav ul { list-style: none; display: grid; gap: 0.5rem; }
.site-footer nav a { text-decoration: none; }
.footer-legal { border-top: 1px solid var(--line); padding-block: 1.2rem; }
.footer-legal p { font-size: 0.8rem; }

/* Floating WhatsApp button */
.whatsapp-fab {
  position: fixed;
  right: max(1rem, env(safe-area-inset-right));
  bottom: max(1.1rem, env(safe-area-inset-bottom));
  z-index: 110;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #2ee06f, var(--whatsapp-dark));
  color: #06140c;
  text-decoration: none;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 1.3rem;
  border-radius: 999px;
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.45);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-fab:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 14px 36px rgba(37, 211, 102, 0.55); }
.whatsapp-fab svg { width: 26px; height: 26px; flex: none; }

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in-view { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track { animation: none; }
  .brand-mark { animation: none; }
}

/* --------------------------------------------------------------------------
   Mobile nav (≤ 860px)
   -------------------------------------------------------------------------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .header-call span { display: none; }
  .header-call { padding: 0.65em 0.8em; }

  .site-nav {
    position: absolute;
    top: 100%;            /* drops down from the bottom of the header */
    left: 0;
    right: 0;
    background: rgba(10, 10, 11, 0.98);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    max-height: calc(100dvh - var(--header-h));
    overflow-y: auto;
    /* Fully hidden when closed — cannot peek over the header */
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
    z-index: 90;
  }
  .site-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .site-nav ul { flex-direction: column; gap: 0; padding: 0.6rem 1.4rem 1.2rem; }
  .site-nav a { display: block; padding: 0.85rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .site-nav li:last-child a { border-bottom: 0; }

  .whatsapp-fab .fab-label { display: none; }
  .whatsapp-fab { padding: 0.95rem; }
}

/* --------------------------------------------------------------------------
   Tablet & desktop
   -------------------------------------------------------------------------- */
@media (min-width: 640px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .review-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1.4fr; }
}

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.1fr 0.9fr; gap: 3.5rem; }
  .card-grid { grid-template-columns: repeat(3, 1fr); }
  .quote-grid { grid-template-columns: 1fr 1fr; gap: 4rem; }
  .why-grid { grid-template-columns: 0.9fr 1.1fr; gap: 4rem; }
  .contact-grid { grid-template-columns: 1fr 1.2fr; }
}