/* atlas auto boise — high-end mobile auto detailing.
   palette: dark sage charcoal + warm cream + sage green accent.
   inspired by stationery-house / wax-seal aesthetic of the L4 seal mark.
   one typeface: inter. */

:root {
  --ink: #2D332A;            /* dark sage charcoal — primary text */
  --ink-soft: #3D4438;       /* secondary heading */
  --ink-deep: #1A1F19;       /* footer / max contrast */
  --paper: #F5F0E2;          /* warm cream background */
  --paper-warm: #E4DCC4;     /* deeper cream — accent surfaces */
  --paper-pure: #FBF8EF;     /* near-white card surface */
  --mute: #6F6A5C;           /* warm desaturated secondary */
  --line: #D9D0BC;           /* warm subtle borders */
  --sage: #6C7E66;           /* primary brand accent — seal green */
  --sage-deep: #4F5C4A;      /* hover state */
  --sage-soft: #B5C0A8;      /* highlight / soft fill */

  --container: 1200px;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(45, 51, 42, 0.06), 0 2px 4px rgba(45, 51, 42, 0.04);
  --shadow-md: 0 8px 28px rgba(45, 51, 42, 0.10), 0 2px 6px rgba(45, 51, 42, 0.05);
  --shadow-lg: 0 24px 60px rgba(45, 51, 42, 0.18), 0 4px 12px rgba(45, 51, 42, 0.06);

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --font-serif: "Cormorant Garamond", "Apple Garamond", Georgia, serif;
  --tracking-tight: -0.02em;
  --tracking-wide: 0.10em;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: var(--ink); text-decoration: none; transition: color 120ms ease; }
a:hover { color: var(--sage-deep); }

h1, h2, h3, h4 {
  margin: 0 0 0.5em;
  color: var(--ink);
  letter-spacing: var(--tracking-tight);
  line-height: 1.1;
  font-weight: 700;
}
h1 { font-size: clamp(2.5rem, 5.5vw, 4rem); }
h2 { font-size: clamp(1.875rem, 3.5vw, 2.75rem); }
h3 { font-size: 1.25rem; font-weight: 600; }
p { margin: 0 0 1em; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--sage-deep);
  margin-bottom: 14px;
}

/* nav */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background 200ms ease, box-shadow 200ms ease, backdrop-filter 200ms ease;
}
.nav.scrolled {
  background: rgba(245, 240, 226, 0.92);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  box-shadow: var(--shadow-sm);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-size: 0.875rem;
  color: var(--paper);
  transition: color 200ms ease;
}
.nav.scrolled .brand-mark { color: var(--ink); }
.brand-mark img.seal {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--paper);
  padding: 2px;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: rgba(245, 240, 226, 0.92);
  font-size: 0.9375rem;
  font-weight: 500;
}
.nav.scrolled .nav-links a { color: var(--ink); }
.nav-links a:hover { color: var(--sage-soft); }
.nav.scrolled .nav-links a:hover { color: var(--sage-deep); }

.nav-cta {
  background: var(--sage);
  color: var(--paper) !important;
  padding: 10px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  transition: background 200ms ease, transform 120ms ease, box-shadow 200ms ease;
}
.nav-cta:hover { background: var(--sage-deep); transform: translateY(-1px); box-shadow: var(--shadow-md); color: var(--paper) !important; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: 8px;
  color: var(--paper);
  cursor: pointer;
}
.nav.scrolled .nav-toggle { color: var(--ink); }
.nav-toggle svg { width: 24px; height: 24px; }
@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    right: 16px;
    background: var(--paper-pure);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    gap: 8px;
    min-width: 220px;
    display: none;
    border: 1px solid var(--line);
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--ink); padding: 10px 12px; border-radius: var(--radius-sm); }
  .nav-links a:hover { background: var(--paper-warm); }
  .nav-cta { text-align: center; }
}

/* hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  color: var(--paper);
  overflow: hidden;
  isolation: isolate;
  background: var(--ink-deep);
}
.hero-bg {
  position: absolute; inset: 0;
  background-image: url("/assets/img/section-mobile-arrival.png");
  background-size: cover;
  background-position: center;
  z-index: -2;
  filter: saturate(1.05) contrast(1.04);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(26, 31, 25, 0.78) 0%, rgba(45, 51, 42, 0.50) 60%, rgba(45, 51, 42, 0.34) 100%);
  z-index: -1;
}
.hero-content {
  max-width: var(--container);
  margin: 0 auto;
  padding: 140px 24px 80px;
  width: 100%;
}
.hero-content h1 {
  color: var(--paper);
  max-width: 17ch;
  font-weight: 800;
  letter-spacing: -0.025em;
}
.hero-content .lead {
  font-size: 1.125rem;
  color: rgba(245, 240, 226, 0.88);
  max-width: 52ch;
  margin-bottom: 32px;
}
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  border: 0;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 200ms ease, background 200ms ease, color 200ms ease;
}
.btn-primary { background: var(--sage); color: var(--paper); }
.btn-primary:hover { background: var(--sage-deep); transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--paper); }
.btn-ghost { background: transparent; color: var(--paper); border: 1px solid rgba(245,240,226,0.4); }
.btn-ghost:hover { background: rgba(245,240,226,0.10); color: var(--paper); }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { background: var(--ink-deep); color: var(--paper); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-sage { background: var(--sage); color: var(--paper); }
.btn-sage:hover { background: var(--sage-deep); transform: translateY(-2px); box-shadow: var(--shadow-md); color: var(--paper); }

/* sections */
section { padding: 96px 0; }
.section-head {
  max-width: 60ch;
  margin: 0 auto 64px;
  text-align: center;
}
.section-head p { color: var(--mute); font-size: 1.0625rem; }

/* value props */
.values {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
@media (max-width: 880px) { .values { grid-template-columns: 1fr; } }
.value-card {
  background: var(--paper-pure);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.value-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--sage); }
.value-card .icon {
  width: 44px; height: 44px;
  background: var(--ink);
  color: var(--paper);
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.value-card h3 { color: var(--ink); margin-bottom: 8px; }
.value-card p { color: var(--mute); margin-bottom: 0; }

/* split section (image + copy) */
.split {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split.reverse { grid-template-columns: 1fr 1.1fr; }
@media (max-width: 880px) { .split, .split.reverse { grid-template-columns: 1fr; gap: 32px; } }
.split img { border-radius: var(--radius); box-shadow: var(--shadow-md); }

/* service tiers */
.tiers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
@media (max-width: 980px) { .tiers { grid-template-columns: 1fr; max-width: 480px; margin: 0 auto; } }
.addons-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px 28px;
  margin-top: 24px;
  padding: 0;
  list-style: none;
}
.addons-list li {
  display: flex; justify-content: space-between;
  padding: 14px 18px;
  background: var(--paper-pure);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
}
.addons-list li .price { color: var(--sage-deep); font-weight: 600; font-feature-settings: "tnum"; }
.community-strip {
  background: var(--paper-pure);
  border: 1px solid var(--sage-soft);
  border-left: 4px solid var(--sage);
  border-radius: var(--radius);
  padding: 36px 40px;
  margin-top: 16px;
}
.community-strip h3 { color: var(--sage-deep); margin-bottom: 8px; font-size: 1.125rem; }
.community-strip p { color: var(--ink); margin: 0; max-width: 70ch; }
.contact-line {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9375rem;
  color: var(--mute);
}
.contact-line a { color: var(--sage-deep); font-weight: 600; }
.tier-card {
  background: var(--paper-pure);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 36px 30px;
  position: relative;
  display: flex;
  flex-direction: column;
}
.tier-card.featured {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}
@media (max-width: 980px) { .tier-card.featured { transform: none; } }
.tier-card .tag {
  position: absolute;
  top: -10px;
  right: 20px;
  background: var(--sage);
  color: var(--paper);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  padding: 4px 10px;
  border-radius: 4px;
}
.tier-card h3 { margin-bottom: 4px; }
.tier-card.featured h3 { color: var(--paper); }
.tier-card .tier-tagline {
  color: var(--mute);
  font-size: 0.875rem;
  margin: 0 0 20px;
}
.tier-card.featured .tier-tagline { color: rgba(245,240,226,0.7); }
.tier-card .tier-price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}
.tier-card.featured .tier-price { color: var(--sage-soft); }
.tier-card .tier-price small {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--mute);
  letter-spacing: 0;
}
.tier-card.featured .tier-price small { color: rgba(245,240,226,0.6); }
.tier-card ul {
  list-style: none;
  padding: 0;
  margin: 24px 0 28px;
  flex: 1;
}
.tier-card li {
  padding: 8px 0;
  font-size: 0.9375rem;
  color: var(--ink);
  position: relative;
  padding-left: 26px;
  border-bottom: 1px solid var(--line);
}
.tier-card.featured li { color: rgba(245,240,226,0.92); border-bottom-color: rgba(255,255,255,0.10); }
.tier-card li:last-child { border-bottom: 0; }
.tier-card li::before {
  content: "";
  position: absolute;
  left: 0; top: 14px;
  width: 14px; height: 8px;
  border-left: 2px solid var(--sage);
  border-bottom: 2px solid var(--sage);
  transform: rotate(-45deg);
}
.tier-card .btn {
  align-self: flex-start;
  width: 100%;
  text-align: center;
  display: inline-flex;
  justify-content: center;
}

/* cta strip */
.cta-strip {
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
  padding: 56px;
  text-align: center;
  border: 1px solid var(--sage);
}
.cta-strip h2 { color: var(--paper); margin-bottom: 12px; }
.cta-strip p { color: rgba(245,240,226,0.84); max-width: 50ch; margin: 0 auto 28px; }

/* footer */
footer {
  background: var(--ink-deep);
  color: rgba(245, 240, 226, 0.72);
  padding: 72px 0 32px;
}
footer .container {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}
@media (max-width: 880px) { footer .container { grid-template-columns: 1fr 1fr; } }
footer h4 {
  color: var(--sage-soft);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  margin-bottom: 16px;
}
footer ul { list-style: none; padding: 0; margin: 0; }
footer li { margin: 0 0 8px; }
footer a { color: rgba(245, 240, 226, 0.72); }
footer a:hover { color: var(--sage-soft); }
footer .copy {
  border-top: 1px solid rgba(245,240,226, 0.10);
  margin: 56px auto 0;
  padding: 24px 24px 0;
  font-size: 0.8125rem;
  color: rgba(245, 240, 226, 0.4);
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  max-width: var(--container);
}
footer .seal-footer {
  width: 96px; height: 96px;
  border-radius: 50%;
  background: var(--paper);
  padding: 4px;
  margin-bottom: 18px;
}

/* brand page */
.brand-hero {
  padding: 160px 0 80px;
  background: var(--paper);
  text-align: center;
  border-bottom: 1px solid var(--line);
}
.brand-hero .seal-display {
  width: 240px; height: 240px;
  margin: 0 auto 32px;
  border-radius: 50%;
  background: var(--paper-pure);
  padding: 8px;
  box-shadow: var(--shadow-md);
}
.brand-tile {
  background: var(--paper-pure);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 48px;
  margin-bottom: 24px;
}
@media (max-width: 880px) { .brand-tile { padding: 32px 24px; } }
.brand-tile h3 { font-size: 1.5rem; }
.brand-tile p.note { color: var(--mute); font-size: 0.9375rem; }
.logo-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 24px;
}
@media (max-width: 880px) { .logo-grid { grid-template-columns: 1fr; } }
.logo-frame {
  border-radius: var(--radius);
  padding: 56px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--line);
}
.logo-frame.dark { background: var(--ink); border-color: var(--ink); }
.logo-frame.cream { background: var(--paper-warm); border-color: var(--paper-warm); }
.logo-frame.light { background: var(--paper-pure); }
.logo-frame img { max-width: 200px; max-height: 200px; object-fit: contain; }
.logo-frame.dark img {
  filter: brightness(1.4) saturate(0.85);
}

.palette {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 24px;
}
@media (max-width: 880px) { .palette { grid-template-columns: repeat(2, 1fr); } }
.swatch {
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--line);
}
.swatch .chip {
  aspect-ratio: 4 / 3;
  display: flex; align-items: flex-end; padding: 16px;
  font-weight: 600;
  font-size: 0.8125rem;
}
.swatch .meta {
  padding: 12px 16px;
  font-size: 0.8125rem;
  color: var(--mute);
  background: var(--paper-pure);
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}
.type-spec {
  border-left: 4px solid var(--sage);
  padding-left: 24px;
  margin: 24px 0;
}
.type-spec .label {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: var(--tracking-wide);
  color: var(--mute); margin-bottom: 4px;
}
.type-spec .sample { color: var(--ink); }
.do-dont {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; margin-top: 24px;
}
@media (max-width: 880px) { .do-dont { grid-template-columns: 1fr; } }
.do-dont .col {
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--line);
}
.do-dont .col.do   { background: #EDF1E6; border-color: #C5D1B0; }
.do-dont .col.dont { background: #F5EDE5; border-color: #E0CFB8; }
.do-dont h4 {
  font-size: 0.75rem; text-transform: uppercase; letter-spacing: var(--tracking-wide);
  margin-bottom: 12px;
}
.do-dont .do h4 { color: #4F6B3A; }
.do-dont .dont h4 { color: #8B6633; }
.do-dont ul { padding-left: 20px; margin: 0; color: var(--ink); }
.do-dont li { margin-bottom: 8px; }

/* utilities */
.center { text-align: center; }
.muted { color: var(--mute); }
.lead { font-size: 1.125rem; }

/* fade-in on scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.in { opacity: 1; transform: translateY(0); }