@charset "UTF-8";
:root {
  color-scheme: light;
  --paper: #F5F2EA;
  --sheet: #FCFBF8;
  --obsidian: #0E1D20;
  --slate: #162B2F;
  --ink: #142427;
  --muted: #4D6060;
  --rule: #D3CFC3;
  --rule-strong: #142427;
  --teal: #0B6B61;
  --teal-hover: #08524A;
  --teal-soft: #E3F0EC;
  --red: #B43E27;
  --red-soft: #FAECE8;
  --gold: #8C6223;
  --gold-soft: #F8F0E0;
  --soft: #EAE6DC;
  --line: #D3CFC3;
  --accent: #0B6B61;
  --width: 1280px;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-serif: "Songti SC", "Noto Serif CJK SC", "Source Han Serif SC", "STSong", SimSun, Georgia, serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(11, 107, 97, 0.045) 1px, transparent 1px),
    linear-gradient(180deg, rgba(252, 251, 248, 0.65) 0%, rgba(245, 242, 234, 0.95) 100%);
  background-size: 28px 28px, 100% 100%;
  color: var(--ink);
  font: 15px/1.8 var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

/* Domain-specific atmospheric top border */
body::before {
  content: "";
  display: block;
  height: 4px;
  background: linear-gradient(90deg, var(--obsidian) 0%, var(--teal) 55%, var(--red) 100%);
}
body[data-domain="recovery"]::before {
  background: linear-gradient(90deg, #7A2012 0%, var(--red) 60%, var(--gold) 100%);
}
body[data-domain="development"]::before {
  background: linear-gradient(90deg, #0E1D20 0%, #1B4D5C 60%, var(--teal) 100%);
}
body[data-domain="publishing"]::before {
  background: linear-gradient(90deg, #2C1810 0%, #9E3823 55%, #8C6223 100%);
}
body[data-domain="enterprise"]::before {
  background: linear-gradient(90deg, #0E1D20 0%, #7A541D 55%, var(--teal) 100%);
}

h1, h2, h3, p { margin: 0 0 16px; }
h1, h2, h3 { font-weight: 700; line-height: 1.3; letter-spacing: -0.025em; color: var(--ink); }
h1, h2 { font-family: var(--font-serif); }
h1 { font-size: clamp(32px, 3.6vw, 44px); }
h2 { font-size: clamp(22px, 2.2vw, 28px); }
h3 { font-size: 18px; }

a { color: var(--teal); text-underline-offset: 4px; text-decoration-thickness: 1px; transition: color 0.18s ease, background-color 0.18s ease, border-color 0.18s ease; }
a:hover { color: var(--red); }
a:focus-visible, select:focus-visible, summary:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}

button, select, input, textarea { font: inherit; }
ul, ol { padding-left: 1.3em; margin: 0 0 20px; }
li + li { margin-top: 8px; }
img { max-width: 100%; height: auto; }
strong { font-weight: 650; }
[hidden] { display: none !important; }

.wrap { width: min(calc(100% - 64px), var(--width)); margin-inline: auto; }

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 100;
  background: var(--obsidian);
  color: #fff;
  padding: 10px 20px;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }

/* Studio Atelier Sticky Header */
.site-header {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 32px;
  min-height: 86px;
  padding: 14px 0;
  border-bottom: 2px solid var(--ink);
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 242, 234, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.brand {
  color: var(--ink);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 14px;
}
.brand::before {
  content: "青";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--obsidian);
  color: #FCFBF8;
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 700;
  border: 1px solid var(--ink);
  box-shadow: 3px 3px 0 var(--teal);
  flex-shrink: 0;
}
.brand-label {
  font-family: var(--font-serif);
  font-size: 23px;
  font-weight: 700;
  letter-spacing: 0.03em;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}
.brand-label span[lang="en"] {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 2px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.main-nav a {
  font-size: 13.5px;
  font-weight: 550;
  color: var(--muted);
  padding: 7px 14px;
  text-decoration: none;
  white-space: nowrap;
  border: 1px solid transparent;
}
.main-nav a:hover {
  color: var(--ink);
  background: rgba(20, 36, 39, 0.04);
}
.main-nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 650;
  background: var(--sheet);
  border-color: var(--rule);
  box-shadow: inset 0 -2px 0 var(--red);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.guest-lookup-pill {
  font-size: 12px;
  font-weight: 600;
  color: var(--teal);
  text-decoration: none;
  padding: 7px 12px;
  border: 1px solid rgba(11, 107, 97, 0.35);
  background: var(--teal-soft);
  white-space: nowrap;
}
.guest-lookup-pill:hover {
  background: var(--teal);
  color: #fff;
  border-color: var(--teal);
}

.account-entry {
  font-size: 12.5px;
  white-space: nowrap;
}
.account-entry a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: #FCFBF8;
  background: var(--obsidian);
  border: 1px solid var(--obsidian);
  text-decoration: none;
  padding: 7px 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.account-entry a:hover {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
}

.eyebrow, .index-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 650;
  letter-spacing: 0.12em;
  color: var(--red);
  text-transform: uppercase;
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--red);
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--muted);
  padding: 20px 0 8px;
  margin-bottom: 18px;
  border-bottom: 1px dashed var(--rule);
}
.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--teal); text-decoration: underline; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 11px 22px;
  min-height: 46px;
  background: var(--teal);
  color: #fff;
  border: 1px solid var(--teal);
  font-size: 13.5px;
  font-weight: 650;
  text-decoration: none;
  line-height: 1.5;
  cursor: pointer;
  box-shadow: 3px 3px 0 rgba(20, 36, 39, 0.16);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
.button:hover {
  background: var(--obsidian);
  color: #fff;
  border-color: var(--obsidian);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 rgba(11, 107, 97, 0.28);
}
.button.secondary {
  background: var(--sheet);
  color: var(--ink);
  border-color: var(--ink);
}
.button.secondary:hover {
  background: var(--soft);
  color: var(--ink);
}
.button.full { width: 100%; }

.text-link {
  font-size: 13.5px;
  font-weight: 650;
  white-space: nowrap;
  color: var(--teal);
}
.small { font-size: 12.5px; color: var(--muted); }
.break-email { overflow-wrap: anywhere; font-family: var(--font-mono); }

/* Standard Fixed-Price Service Sheet Pages (service-install, service-maintenance, service-setup) */
.sheet-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 48px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--teal);
  padding: 36px 40px;
  box-shadow: 0 12px 32px rgba(20, 36, 39, 0.05);
  margin-bottom: 36px;
}
.sheet-header h1 { font-size: 38px; margin-bottom: 14px; }
.sheet-header .eyebrow { margin-bottom: 12px; }
.detail-lead { font-size: 16px; color: var(--muted); max-width: 650px; margin-bottom: 26px; }
.detail-specs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--rule);
}
.detail-specs > div {
  background: var(--paper);
  padding: 12px 14px;
  border-left: 3px solid var(--teal);
}
.detail-specs dt { font-family: var(--font-mono); font-size: 11px; color: var(--muted); margin-bottom: 4px; text-transform: uppercase; }
.detail-specs dd { font-size: 13.5px; font-weight: 650; color: var(--ink); margin: 0; }

.sheet-price {
  background: var(--obsidian);
  color: #FCFBF8;
  padding: 28px 30px;
  border: 1px solid var(--ink);
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}
.panel-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: #A9BDBC;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
}
.panel-label span {
  color: #7CE2D4;
  background: rgba(11, 107, 97, 0.35);
  padding: 2px 8px;
}
.price {
  font: 52px/1.05 Georgia, "Times New Roman", serif;
  letter-spacing: -0.04em;
  margin: 18px 0;
  white-space: nowrap;
  color: var(--ink);
}
.sheet-price .price { color: #FCFBF8; }
.price .currency { font-size: 26px; margin-right: 4px; color: var(--teal); }
.sheet-price .price .currency { color: #7CE2D4; }
.price small {
  font: 12px/1.4 var(--font-sans);
  letter-spacing: 0;
  margin-left: 8px;
  color: var(--muted);
}
.sheet-price .price small { color: #A9BDBC; }
.sheet-price > p:not(.price) { font-size: 12px; color: #B4C6C5; margin: 14px 0 0; line-height: 1.65; }
.sheet-price .sheet-direct-routes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-top: 10px;
}
.sheet-price .sheet-direct-routes a {
  text-align: center;
  font-size: 12px;
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  color: #FCFBF8;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.05);
}
.sheet-price .sheet-direct-routes a:hover {
  background: var(--teal);
  border-color: var(--teal);
}

.sheet-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 310px;
  gap: 56px;
  padding-bottom: 48px;
}
.sheet-section {
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 28px 32px;
  margin-bottom: 22px;
}
.sheet-section h2 {
  font-size: 22px;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--rule);
}
.sheet-section p, .sheet-section li { font-size: 14px; color: var(--muted); }
.sheet-section p:last-child, .sheet-section ul:last-child, .sheet-section ol:last-child { margin-bottom: 0; }

.work-list { border-top: 1px solid var(--rule); }
.work-item {
  display: grid;
  grid-template-columns: 36px 175px 1fr;
  gap: 18px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
}
.work-item .mini-number {
  font: 600 12px/1.8 var(--font-mono);
  color: #fff;
  background: var(--teal);
  text-align: center;
  padding: 2px 6px;
}
.work-item h3 { font-size: 15px; margin: 0; }
.work-item p { font-size: 13.5px; margin: 0; }

.sheet-sidebar { position: sticky; top: 108px; align-self: start; }
.side-note {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  padding: 24px;
  margin-bottom: 24px;
}
.side-note h2 { font-size: 19px; margin-bottom: 12px; }
.side-note p, .side-note li { font-size: 13px; color: var(--muted); }
.aside-links { display: flex; flex-direction: column; gap: 10px; font-size: 13px; }
.aside-links a {
  padding: 8px 12px;
  background: var(--paper);
  border: 1px solid var(--rule);
  text-decoration: none;
  color: var(--ink);
  font-weight: 550;
}
.aside-links a:hover {
  border-color: var(--teal);
  color: var(--teal);
}

.plain-callout {
  border-left: 3px solid var(--red);
  background: var(--red-soft);
  padding: 12px 16px;
  margin: 20px 0 0;
}
.plain-callout p { font-size: 13px; color: var(--ink); margin: 0; }

/* Page Heading & Checkout Layout */
.page-heading {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 14px 48px;
  align-items: start;
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 2px solid var(--ink);
}
.page-heading .eyebrow { grid-column: 1; margin: 0 0 6px; }
.page-heading h1 { grid-column: 1; grid-row: 2 / span 2; font-size: 36px; margin: 0; }
.page-heading > p:not(.eyebrow) { grid-column: 2; grid-row: 2; font-size: 15px; color: var(--muted); margin: 0; max-width: 720px; }

.checkout-quick-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.checkout-quick-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  padding: 14px 16px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--rule);
  cursor: pointer;
  text-align: left;
  transition: all 0.16s ease;
}
.checkout-quick-btn:hover {
  border-color: var(--teal);
  background: #fff;
}
.checkout-quick-btn[aria-pressed="true"] {
  border-color: var(--teal);
  border-top: 3px solid var(--teal);
  background: var(--teal-soft);
  box-shadow: 0 6px 18px rgba(11, 107, 97, 0.1);
}
.checkout-quick-btn strong { font-size: 15px; color: var(--ink); }
.checkout-quick-btn span { font-family: var(--font-mono); font-size: 12px; color: var(--teal); font-weight: 600; }

.checkout-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 44px;
  padding: 4px 0 48px;
}
.service-selector {
  background: var(--obsidian);
  color: #FCFBF8;
  border: 1px solid var(--ink);
  border-top: 4px solid var(--teal);
  padding: 24px;
  position: sticky;
  top: 108px;
}
.service-selector label {
  font-size: 13px;
  font-weight: 650;
  display: block;
  margin-bottom: 12px;
  color: #7CE2D4;
  letter-spacing: 0.04em;
}
.service-selector select {
  display: block;
  width: 100%;
  background: var(--sheet);
  border: 1px solid var(--rule);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 600;
  padding: 11px 10px;
  min-height: 46px;
  border-radius: 0;
}
.service-selector > p { font-size: 12.5px; color: #B4C6C5; margin-top: 18px; line-height: 1.7; }
.service-selector .text-link { color: #7CE2D4; }

.selection-note {
  font-size: 13.5px;
  color: var(--ink);
  background: var(--gold-soft);
  border-left: 3px solid var(--gold);
  padding: 12px 16px;
  margin-bottom: 20px;
}

.purchase-sheet, .quote-sheet {
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 4px solid var(--teal);
  padding: 32px 36px;
  box-shadow: 0 12px 32px rgba(20, 36, 39, 0.05);
  margin-bottom: 24px;
}
.quote-sheet { border-top-color: var(--red); }

.purchase-heading {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  padding: 0 0 22px;
  border-bottom: 2px solid var(--ink);
  align-items: start;
}
.purchase-heading h2 { font-size: 30px; margin-bottom: 8px; }
.purchase-heading p { font-size: 14px; color: var(--muted); max-width: 560px; margin: 0; }
.purchase-heading .price { font-size: 46px; margin: 0; color: var(--ink); }

.purchase-scope {
  display: grid;
  grid-template-columns: 110px 1fr;
  gap: 20px;
  font-size: 13.5px;
  border-bottom: 1px solid var(--rule);
  padding: 18px 0;
  color: var(--muted);
}
.purchase-scope strong {
  color: var(--red);
  font-family: var(--font-mono);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.purchase-scope p, .purchase-scope ul { margin: 0; }

.purchase-route {
  display: grid;
  grid-template-columns: 165px minmax(0, 1fr) auto;
  gap: 22px;
  align-items: center;
  padding: 22px 20px;
  margin-top: 14px;
  background: var(--paper);
  border: 1px solid var(--rule);
}
.purchase-route h3 { font-size: 16px; margin: 0; }
.purchase-route p { font-size: 13px; color: var(--muted); margin: 0; }
.purchase-route .button { font-size: 13px; white-space: nowrap; gap: 14px; min-height: 42px; }
.purchase-footnote { font-size: 12px; color: var(--muted); margin: 18px 0 0; padding-top: 14px; border-top: 1px dashed var(--rule); }
.purchase-footnote a { white-space: nowrap; font-weight: 600; }

.checkout-detailed-notes {
  padding: 24px 28px;
  margin-top: 28px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
.checkout-detailed-notes h3 { font-size: 15px; margin-bottom: 8px; }
.checkout-detailed-notes p { font-size: 13px; color: var(--muted); margin: 0; }

/* Terms & Compliance Layout */
.terms-version { grid-column: 2; font-family: var(--font-mono); font-size: 11.5px; color: var(--teal); background: var(--teal-soft); padding: 4px 10px; justify-self: start; }
.terms-layout {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 56px;
  padding-bottom: 40px;
}
.terms-nav {
  position: sticky;
  top: 108px;
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: var(--sheet);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink);
  padding: 18px;
  font-size: 12.5px;
}
.terms-nav a {
  text-decoration: none;
  color: var(--muted);
  padding: 7px 10px;
  border-left: 2px solid transparent;
  font-family: var(--font-mono);
}
.terms-nav a:hover {
  color: var(--teal);
  background: var(--paper);
  border-left-color: var(--teal);
}
.terms-content > section {
  background: var(--sheet);
  border: 1px solid var(--rule);
  padding: 28px 34px;
  margin-bottom: 20px;
}
.terms-content > section:first-child { border-top: 4px solid var(--teal); }
.terms-content h2 { font-size: 23px; padding-bottom: 12px; border-bottom: 1px solid var(--rule); margin-bottom: 16px; }
.terms-content h3 { font-size: 16px; margin: 22px 0 10px; color: var(--ink); }
.terms-content p, .terms-content li { font-size: 14px; color: var(--muted); }
.terms-content li + li { margin-top: 12px; }
.terms-content details {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 16px 20px;
  margin: 20px 0 0;
}
.terms-content summary { font-size: 13.5px; cursor: pointer; font-weight: 650; color: var(--ink); }
.terms-content details p:first-of-type { margin-top: 14px; }
.terms-content details p:last-child { margin-bottom: 0; }
.retention-list { list-style: none; padding: 0; }
.retention-list li { border-bottom: 1px solid var(--rule); padding-bottom: 14px; }
.retention-list strong { display: block; margin-bottom: 5px; color: var(--ink); }

/* Studio Atelier Footer */
.site-footer {
  background: var(--obsidian);
  color: #D0DCDC;
  border-top: 3px solid var(--teal);
  margin-top: 48px;
  padding: 36px 0 32px;
}
.footer-main {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}
.footer-main > p {
  font-family: var(--font-serif);
  font-size: 15px;
  font-weight: 600;
  color: #FCFBF8;
  margin: 0;
  letter-spacing: 0.04em;
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  font-size: 12.5px;
}
.footer-nav a { color: #B4C6C5; text-decoration: none; }
.footer-nav a:hover { color: #7CE2D4; text-decoration: underline; }
.footer-bottom {
  font-size: 12px;
  color: #93A8A8;
  margin: 14px 0 0;
  text-align: center;
}
.footer-bottom a { color: #7CE2D4; }
.site-footer .footer-bottom > .icp-link {
  display: inline-block;
  text-align: center;
  color: #93A8A8;
  font-family: var(--font-mono);
  text-decoration: none;
  padding: 4px 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
}
.site-footer .footer-bottom > .icp-link:hover {
  color: #FCFBF8;
  border-color: #7CE2D4;
}

@media (max-width: 1100px) {
  .site-header { gap: 18px; }
  .page-heading, .checkout-layout { grid-template-columns: 250px minmax(0, 1fr); gap: 32px; }
  .sheet-header { grid-template-columns: minmax(0, 1fr) 310px; gap: 32px; padding: 28px; }
  .sheet-layout { gap: 36px; grid-template-columns: minmax(0, 1fr) 260px; }
  .terms-layout { gap: 36px; grid-template-columns: 200px minmax(0, 1fr); }
}

@media (max-width: 820px) {
  .wrap { width: calc(100% - 32px); }
  .site-header { grid-template-columns: 1fr auto; padding: 14px 0 10px; gap: 12px; position: static; }
  .main-nav { grid-column: 1 / -1; grid-row: 2; overflow-x: auto; padding-bottom: 6px; justify-content: flex-start; }
  .checkout-quick-bar { grid-template-columns: 1fr 1fr; }
  .page-heading { display: block; }
  .page-heading h1 { font-size: 30px; margin-bottom: 12px; }
  .sheet-header { grid-template-columns: 1fr; padding: 22px; }
  .detail-specs { grid-template-columns: 1fr; }
  .sheet-layout, .checkout-layout, .terms-layout { grid-template-columns: 1fr; gap: 24px; }
  .service-selector, .sheet-sidebar, .terms-nav { position: static; }
  .terms-nav { flex-direction: row; flex-wrap: wrap; }
  .purchase-route { grid-template-columns: 1fr; gap: 10px; }
  .checkout-detailed-notes { grid-template-columns: 1fr; }
  .footer-main { flex-direction: column; align-items: flex-start; }
}