/* Hallmark · pre-emit critique: P5 H5 E4 S5 R4 V5
 * theme: studied-DNA (source: https://bikeman.co.th/)
 * macrostructure: Split Studio · nav: N9 · footer: Ft5
 * reference: dark automotive palette, red emphasis, photographic service blocks
 * type: Anuphan for Thai content · imagery: existing Chanphen illustrative photos
 */
:root {
  --paper: #ffffff;
  --ink: #202021;
  --dark: #18191b;
  --muted: #66686d;
  --accent: #db1822;
  --accent-deep: #b80c16;
  --light: #f3f3f4;
  --line: #dedee1;
  --on-dark: #f6f6f7;
  --white: #ffffff;
  --hero-shade: linear-gradient(90deg, #18191b 0%, rgba(24,25,27,.1) 80%);
  --photo-shade: linear-gradient(0deg, rgba(12,13,14,.82), rgba(12,13,14,0) 60%);
  --card-shadow: 0 12px 34px rgba(20,20,25,.08);
  --texture: repeating-linear-gradient(135deg, transparent 0 20px, rgba(255,255,255,.025) 20px 21px);
}
.site-header {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr) auto;
  gap: 0 24px;
  padding: 0 max(32px, calc((100% - 1280px)/2)) 18px;
  background: var(--dark);
  color: var(--white);
  border-bottom: 3px solid var(--accent);
}
.topline { grid-column: 1 / -1; background: transparent; color: var(--on-dark); opacity: .8; }
.topline .wrap { width: 100%; font-size: 11px; padding: 7px 0 14px; }
.brand-row { display: contents; }
.brand { grid-column: 1; grid-row: 2; font-size: 30px; }
.brand-symbol { background: var(--accent); border: 0; color: var(--white); border-radius: 5px 16px 5px 16px; }
.brand small { color: var(--on-dark); font-size: 11px; }
.cart-toggle { grid-column: 3; grid-row: 2; border-color: var(--muted); background: transparent; color: var(--white); }
.cart-count { background: var(--accent); }
.main-nav { grid-column: 2; grid-row: 2; width: auto; margin: 0; justify-content: flex-end; gap: 25px; border: 0; padding: 0; }
.main-nav a { font-size: 14px; font-weight: 600; }
.main-nav a:hover, .main-nav [aria-current] { color: var(--white); border-color: var(--accent); }
.hero.garage-hero { padding-top: 0; margin-top: 28px; }
.hero-main { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.07fr); min-height: 550px; position: relative; background: var(--dark); color: var(--white); overflow: hidden; }
.garage-copy { padding: 58px 20px 45px 48px; position: relative; z-index: 2; background-image: var(--texture); }
.hero-location { font-size: 13px; color: var(--on-dark); padding-left: 13px; border-left: 3px solid var(--accent); margin-bottom: 26px; }
.garage-copy h1 { font-size: clamp(2.4rem, 4.2vw, 4.2rem); line-height: 1.4; margin-bottom: 18px; }
.hero-description { color: var(--on-dark); font-size: 15px; line-height: 1.9; }
.hero-actions { display: flex; gap: 24px; align-items: center; margin-top: 27px; flex-wrap: wrap; }
.hero-call { font-size: 20px; font-weight: 700; white-space: nowrap; }
.hero-signature { font-size: 24px; font-weight: 700; margin-top: 30px; }
.hero-signature span { display: block; color: var(--on-dark); font-size: 11px; font-weight: 400; }
.garage-visual { position: relative; min-width: 0; border-bottom: 12px solid var(--accent); }
.garage-visual:after { content: ''; position: absolute; inset: 0; background: var(--hero-shade); }
.garage-main-image { width: 100%; height: 100%; object-position: 62% center; }
.garage-photo-label { position: absolute; right: 0; bottom: 28px; z-index: 1; background: var(--accent); padding: 13px 28px 13px 34px; clip-path: polygon(18px 0,100% 0,100% 100%,0 100%); font-size: 14px; font-weight: 600; }
.hero-gallery.garage-gallery { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; margin-top: 18px; }
.garage-gallery figure { position: relative; overflow: hidden; background: var(--dark); }
.garage-gallery figure:after { content: ''; position: absolute; inset: 0; background: var(--photo-shade); pointer-events: none; }
.garage-gallery img { height: 245px; width: 100%; }
.garage-gallery figcaption { position: absolute; bottom: 18px; left: 22px; right: 12px; z-index: 1; font-size: 17px; color: var(--white); font-weight: 600; border-left: 3px solid var(--accent); padding-left: 12px; }
.welcome-band { padding: 36px 0 0; display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr); gap: 60px; align-items: center; }
.welcome-band h2 { font-size: 30px; margin: 0; }
.welcome-band .intro-lines { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 28px; font-size: 13px; color: var(--muted); }
h2 { font-weight: 700; }
.section { padding-block: 65px; }
.section:has(>.split) { padding-top: 85px; }
.split { gap: 65px; }
.split>img { border-bottom: 8px solid var(--accent); height: 420px; }
.split h2:after { content: ''; display: block; width: 60px; height: 4px; background: var(--accent); margin-top: 20px; }
.soft { background: var(--light); border: 0; }
.soft>h2 { text-align: center; }
.reasons { gap: 35px; }
.reasons>div { padding-top: 22px; border-top: 3px solid var(--accent); }
.services-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; margin-bottom: 30px; }
.services-heading h2 { margin-bottom: 12px; }
.services-heading p { color: var(--muted); margin: 0; }
.services-heading .text-link { flex-shrink: 0; }
.product { box-shadow: var(--card-shadow); border: 1px solid var(--line); border-bottom: 4px solid var(--accent); }
.product img { height: 245px; }
.product-body { padding: 25px; }
.product h3 { font-size: 20px; }
.price strong { color: var(--accent); font-size: 34px; }
.product .secondary { width: 100%; border-color: var(--accent); color: var(--accent); }
.product .secondary:hover { color: var(--white); background: var(--accent); }
.button { border-radius: 3px; }
.button:hover { background: var(--accent-deep); border-color: var(--accent-deep); }
.promo { position: relative; overflow: hidden; background: var(--dark); background-image: var(--texture); padding: 55px; border-left: 8px solid var(--accent); }
.promo h2 { font-size: clamp(1.8rem,3vw,2.7rem); }
.promo>div { max-width: 720px; }
.promo .button { flex-shrink: 0; }
.promo span { color: var(--on-dark); font-size: 14px; }
.articles details { background: var(--light); margin-bottom: 10px; padding: 22px 26px; border: 0; }
.articles summary::marker { color: var(--accent); }
.articles details[open] { border-left: 4px solid var(--accent); }
.review-block { border-left: 5px solid var(--accent); padding-left: 30px; }
.contact-links a { font-weight: 600; }
iframe { filter: grayscale(.7); border: 1px solid var(--line); }
.page-title { padding-left: 26px; border-left: 6px solid var(--accent); }
.page-title h1 { font-size: clamp(2.4rem,4.5vw,4.2rem); }
.site-footer { border-top: 6px solid var(--accent); background-image: var(--texture); padding-block: 55px 35px; }
.footer-brand { font-size: 48px; }
.footer-head>p { font-size: 24px; font-weight: 600; }
.footer-head { padding-bottom: 30px; margin-bottom: 28px; }
.footer-links a:hover { color: var(--white); text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 7px; }
.cart-drawer { border-top: 5px solid var(--accent); }
.cart-total { color: var(--accent); }
@media(max-width:1100px) {
  .site-header { grid-template-columns: minmax(0,1fr) auto; padding: 0 24px 10px; }
  .brand { grid-column: 1; }
  .cart-toggle { grid-column: 2; }
  .main-nav { grid-column: 1/-1; grid-row: 3; justify-content: flex-start; gap: 32px; margin-top: 14px; }
  .garage-copy { padding: 36px 20px 35px 30px; }
  .hero-main { min-height: 530px; }
  .hero-actions { gap: 15px; }
  .hero-call { font-size: 17px; }
  .welcome-band { gap: 30px; }
  .welcome-band .intro-lines { display: block; }
}
@media(max-width:760px) {
  .hero-main { grid-template-columns: minmax(0,1fr); }
  .garage-copy { padding: 36px 28px; }
  .garage-copy h1 { font-size: 40px; }
  .garage-visual { height: 380px; }
  .garage-visual:after { background: var(--photo-shade); }
  .hero-gallery.garage-gallery { gap: 12px; }
  .garage-gallery img { height: 190px; }
  .garage-gallery figcaption { left: 12px; bottom: 12px; font-size: 12px; padding-left: 7px; }
  .welcome-band { grid-template-columns: minmax(0,1fr); gap: 22px; }
  .welcome-band .intro-lines { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); }
  .services-heading { display: block; }
  .services-heading .text-link { margin-top: 15px; }
  .split { gap: 30px; }
  .footer-head>p { font-size: 18px; }
}
@media(max-width:640px) {
  .site-header { padding: 0 16px 9px; gap: 0 12px; }
  .topline .wrap { font-size: 10px; padding-bottom: 10px; }
  .brand { font-size: 26px; }
  .brand small { font-size: 10px; }
  .main-nav { gap: 0 18px; margin-top: 12px; }
  .main-nav a { font-size: 12px; min-height: 35px; }
  .hero.garage-hero { margin-top: 16px; }
  .garage-copy { padding: 30px 22px; }
  .garage-copy h1 { font-size: 37px; }
  .hero-location { font-size: 11px; margin-bottom: 20px; }
  .hero-description { font-size: 13px; }
  .hero-description br { display: none; }
  .hero-actions { align-items: flex-start; flex-direction: column; gap: 14px; }
  .hero-signature { display: none; }
  .garage-visual { height: 300px; border-bottom-width: 7px; }
  .garage-main-image { object-position: center; }
  .hero-gallery.garage-gallery { grid-template-columns: minmax(0,1fr); gap: 14px; margin-top: 14px; }
  .garage-gallery img { height: 250px; }
  .garage-gallery figcaption { left: 20px; bottom: 20px; font-size: 16px; padding-left: 12px; }
  .welcome-band { padding-top: 28px; }
  .welcome-band h2 { font-size: 26px; }
  .welcome-band .intro-lines { display: block; font-size: 13px; line-height: 2; }
  .section,.section:has(>.split) { padding-block: 42px; }
  .split>img { height: 280px; }
  .soft { padding-inline: 22px; }
  .soft>h2 { text-align: left; }
  .promo { padding: 28px 24px; border-left-width: 5px; }
  .promo .button { font-size: 13px; }
  .review-block { padding-left: 20px; }
  .articles details { padding: 19px; }
  .page-title { padding-left: 18px; border-left-width: 4px; }
  .page-title h1 { font-size: 32px; }
  .footer-head { padding-bottom: 18px; }
  .footer-head>p { font-size: 16px; }
  .footer-brand { font-size: 38px; }
}