/* Glossline Mobile Detailing - case-study mini-site
   Inspired by premium mobile-detailing layouts (dramatic full-bleed car
   photography, floating review badge, minimal nav, gold CTA). Original
   build: new brand, copy, and a black + electric-teal palette instead of
   the reference's black + gold. */

:root {
  --black: #0d0d0d;
  --charcoal: #1a1a1a;
  --teal: #29c5c5;
  --teal-dark: #1a9c9c;
  --white: #ffffff;
  --gray: #8f8f8f;
  --ink: #17181a;
  --font-head: "Sora", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Inter", "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-body); color: var(--ink); background: var(--white); line-height: 1.65; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 700; line-height: 1.15; margin: 0 0 0.5em; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); }
p { margin: 0 0 1em; color: var(--gray); }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

.back-link { background: var(--black); color: rgba(255,255,255,0.8); font-size: 0.78rem; text-align: center; padding: 8px 0; }
.back-link a { color: var(--white); font-weight: 600; }
.back-link a:hover { text-decoration: underline; }

.site-header { position: relative; z-index: 3; background: var(--black); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; padding: 22px 24px; }
.logo { font-family: var(--font-head); font-weight: 800; font-size: 1.4rem; color: var(--white); }
.logo span { color: var(--teal); }
nav.main-nav ul { display: flex; gap: 28px; }
nav.main-nav a { font-weight: 600; font-size: 0.85rem; letter-spacing: 0.03em; text-transform: uppercase; color: rgba(255,255,255,0.85); padding-bottom: 3px; border-bottom: 2px solid transparent; }
nav.main-nav a:hover, nav.main-nav a.active { border-color: var(--teal); color: var(--white); }

.btn { display: inline-block; font-family: var(--font-head); font-weight: 700; font-size: 0.85rem; padding: 14px 28px; border-radius: 999px; border: 2px solid transparent; }
.btn-teal { background: var(--teal); color: var(--black); }
.btn-teal:hover { background: var(--teal-dark); color: var(--white); }
.btn-outline-white { border-color: rgba(255,255,255,0.6); color: var(--white); }
.btn-outline-white:hover { background: var(--white); color: var(--black); }
.btn-outline-dark { border-color: var(--ink); color: var(--ink); }
.btn-outline-dark:hover { background: var(--ink); color: var(--white); }

/* Hero */
.hero { position: relative; background: linear-gradient(180deg, rgba(13,13,13,0.55), rgba(13,13,13,0.92)), radial-gradient(circle at 70% 30%, #1f2b2b, #0d0d0d 60%); color: var(--white); padding: 90px 0 100px; }
.hero .wrap { max-width: 700px; }
.hero p.lead { color: rgba(255,255,255,0.82); font-size: 1.05rem; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 22px; }
.review-badge { display: inline-flex; align-items: center; gap: 10px; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.16); border-radius: 999px; padding: 8px 18px; font-size: 0.82rem; margin-bottom: 22px; }
.review-badge .stars { color: var(--teal); }
.hero-photo { margin-top: 40px; aspect-ratio: 16/7; border: 2px dashed rgba(255,255,255,0.3); background: rgba(255,255,255,0.05); display: flex; align-items: center; justify-content: center; text-align: center; color: rgba(255,255,255,0.8); font-size: 0.88rem; padding: 20px; }

.section { padding: 80px 0; }
.center { text-align: center; }
.section-intro { max-width: 620px; margin: 0 auto 40px; }
.bg-dark { background: var(--black); color: var(--white); }
.bg-dark h2 { color: var(--white); }
.bg-cream { background: #f4f4f2; }

/* Packages */
.packages-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.package-card { background: var(--white); border: 1px solid #e6e6e6; border-radius: 14px; padding: 30px 26px; text-align: center; }
.package-card.featured { border-color: var(--teal); box-shadow: 0 14px 30px rgba(41,197,197,0.15); position: relative; }
.package-card.featured::before { content: "MOST POPULAR"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--teal); color: var(--black); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.05em; padding: 5px 14px; border-radius: 999px; }
.package-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.package-card .price { font-family: var(--font-head); font-size: 2rem; font-weight: 800; color: var(--teal-dark); margin-bottom: 12px; }
.package-card ul { text-align: left; margin-bottom: 20px; }
.package-card li { font-size: 0.88rem; padding: 6px 0; color: var(--gray); }
.package-card li::before { content: "✓ "; color: var(--teal-dark); font-weight: 700; }

/* Gallery */
.gallery-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.gallery-grid .item { aspect-ratio: 1; background: var(--charcoal); color: rgba(255,255,255,0.6); display: flex; align-items: center; justify-content: center; text-align: center; font-size: 0.72rem; padding: 10px; border-radius: 8px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.photo-box { aspect-ratio: 4/3; border: 2px dashed #d8d8d8; background: #f4f4f2; display: flex; align-items: center; justify-content: center; text-align: center; color: var(--gray); font-size: 0.85rem; padding: 20px; }
img.hero-photo, img.photo-box, .gallery-grid img.item {
  border: none;
  background: none;
  padding: 0;
  display: block;
  width: 100%;
  object-fit: cover;
  border-radius: 8px;
}

.faq-list { max-width: 760px; margin: 0 auto; }
.faq-list details { background: var(--charcoal); border-radius: 10px; padding: 18px 22px; margin-bottom: 12px; }
.faq-list summary { cursor: pointer; font-family: var(--font-head); font-weight: 700; font-size: 1rem; list-style: none; display: flex; justify-content: space-between; align-items: center; color: var(--white); }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; font-size: 1.3rem; color: var(--teal); }
.faq-list details[open] summary::after { content: "–"; }
.faq-list p { margin-top: 12px; margin-bottom: 0; color: rgba(255,255,255,0.7); }

.cta-band { background: var(--teal); color: var(--black); text-align: center; padding: 60px 0; }
.cta-band h2 { color: var(--black); }

.site-footer { background: var(--black); color: rgba(255,255,255,0.7); padding: 50px 0 20px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr; gap: 40px; padding-bottom: 30px; }
.footer-grid h4 { color: var(--white); font-family: var(--font-head); font-size: 0.95rem; margin-bottom: 14px; }
.footer-grid li { margin-bottom: 8px; font-size: 0.86rem; }
.footer-grid a:hover { color: var(--teal); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.14); padding-top: 18px; font-size: 0.76rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

.contact-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 50px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 0.85rem; font-weight: 700; margin-bottom: 6px; }
.form-field input, .form-field textarea, .form-field select { width: 100%; padding: 13px 14px; border: 1px solid #ddd; border-radius: 8px; font-family: var(--font-body); font-size: 1rem; }
.form-field textarea { min-height: 130px; resize: vertical; }
.form-success { display: none; background: #f4f4f2; border-radius: 8px; padding: 14px 16px; margin-bottom: 18px; font-weight: 700; }
.form-success.show { display: block; }
.info-card { background: var(--black); color: var(--white); border-radius: 14px; padding: 30px; }
.info-card li { display: flex; gap: 10px; margin-bottom: 16px; font-size: 0.92rem; color: rgba(255,255,255,0.85); }

@media (max-width: 900px) {
  .split, .contact-layout { grid-template-columns: 1fr; }
  .packages-grid { grid-template-columns: 1fr 1fr; }
  .gallery-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 620px) {
  .site-header .wrap { flex-wrap: wrap; row-gap: 14px; }
  nav.main-nav { width: 100%; order: 3; }
  nav.main-nav ul { flex-wrap: wrap; gap: 12px 18px; }
  .packages-grid, .gallery-grid, .footer-grid { grid-template-columns: 1fr; }
  .hero { padding: 60px 0 60px; }
  .section { padding: 56px 0; }
}