:root {
  color-scheme: light;
  --key-blue: #5066bc;
  --key-green: #003f39;
  --key-ivory: #e7e1cf;
  --key-ivory-strong: #f3eddb;
  --key-coral: #f26554;
  --key-blue-dark: #2f4599;
  --ink: var(--key-green);
  --muted: #69665b;
  --line: #cfc6af;
  --paper: var(--key-ivory);
  --panel: #eee8d6;
  --panel-strong: #f7f1df;
  --glass: rgba(238, 232, 214, 0.92);
  --soft: #ded6bf;
  --field: #f9f3df;
  --copy: #123f39;
  --gold: var(--key-blue);
  --gold-dark: var(--key-blue);
  --sage: var(--key-green);
  --coral: var(--key-coral);
  --teal: #234f75;
  --primary-bg: var(--key-blue);
  --primary-text: #f9f3df;
  --checker-color: var(--key-blue);
  --checker-bg: transparent;
  --frame-tile: url("./assets/the-key-checker-tile-blue.png");
  --texture-image: none;
  --relief-texture: url("./TheKeyBranding/2.png");
  --texture-opacity: 0;
  --shadow: 0 24px 70px rgba(0, 63, 57, 0.14);
  --radius: 2px;
  --sidebar-width: 280px;
}

body[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f3eddb;
  --muted: #b9beb2;
  --line: #1a5a51;
  --paper: #002f2a;
  --panel: #003f39;
  --panel-strong: #064d45;
  --glass: rgba(0, 63, 57, 0.94);
  --soft: #073a35;
  --field: #0b4b44;
  --copy: #e3decd;
  --gold: #7a8de6;
  --gold-dark: #aeb9ff;
  --sage: #92a4f0;
  --coral: #ff765f;
  --teal: #abcfc8;
  --primary-bg: var(--key-coral);
  --primary-text: #002f2a;
  --checker-color: #6f83de;
  --checker-bg: rgba(0, 38, 34, 0.72);
  --frame-tile: url("./assets/the-key-checker-tile-blue.png");
  --texture-image: url("./TheKeyBranding/3.png");
  --relief-texture: url("./TheKeyBranding/3.png");
  --texture-opacity: 0.18;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

body[data-theme="dark"] .secondary {
  border-color: var(--gold);
  background: color-mix(in srgb, var(--key-green) 78%, transparent);
  color: var(--key-ivory-strong);
}

body[data-theme="dark"] .pill {
  background: color-mix(in srgb, var(--gold) 18%, transparent);
  color: var(--teal);
}

body[data-theme="dark"] .tag {
  background: color-mix(in srgb, var(--gold) 20%, transparent);
  color: var(--gold-dark);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  position: relative;
  margin: 0;
  min-width: 320px;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(80, 102, 188, 0.06) 1px, transparent 1px),
    linear-gradient(180deg, rgba(0, 63, 57, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 22px 22px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  transition:
    background-color 180ms ease,
    color 180ms ease;
}

body[data-theme="dark"] {
  background:
    linear-gradient(90deg, rgba(111, 131, 222, 0.09) 1px, transparent 1px),
    linear-gradient(180deg, rgba(231, 225, 207, 0.05) 1px, transparent 1px),
    var(--paper);
  background-size: 22px 22px;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: var(--texture-image);
  background-position: center;
  background-repeat: no-repeat;
  background-size: min(980px, 110vw) auto;
  content: "";
  opacity: var(--texture-opacity);
  pointer-events: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: inherit;
  text-decoration: none;
}

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

.app-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  height: 100vh;
  flex-direction: column;
  gap: 28px;
  border-right: 10px solid transparent;
  border-image: repeating-linear-gradient(
      180deg,
      var(--checker-color) 0 8px,
      transparent 8px 16px
    )
    10;
  background:
    linear-gradient(color-mix(in srgb, var(--paper) 92%, transparent), color-mix(in srgb, var(--paper) 92%, transparent)),
    var(--checker-bg);
  padding: 28px 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  width: 50px;
  height: 50px;
  place-items: center;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--panel-strong);
  box-shadow: inset 0 0 0 4px color-mix(in srgb, var(--checker-color) 12%, transparent);
  overflow: hidden;
}

.brand-mark img {
  width: 62px;
  max-width: none;
  transform: translate(-8px, 2px);
}

body[data-theme="dark"] .brand-mark img {
  content: url("./assets/the-key-motif-ivory.png");
}

.brand strong,
.brand small,
.sidebar-panel strong,
.sidebar-panel small {
  display: block;
}

.brand strong {
  font-size: 1.05rem;
  letter-spacing: 0;
}

.brand small,
.sidebar-panel small,
.label {
  color: var(--muted);
  font-size: 0.78rem;
}

.side-nav {
  display: grid;
  gap: 6px;
}

.nav-link {
  display: flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  border-radius: var(--radius);
  color: var(--muted);
  padding: 0 12px;
  font-weight: 650;
}

.nav-link:hover,
.nav-link.active {
  background: var(--key-green);
  color: var(--ink);
  color: var(--key-ivory-strong);
  box-shadow: none;
}

.icon {
  display: grid;
  width: 26px;
  height: 26px;
  place-items: center;
  color: var(--gold-dark);
}

.nav-icon {
  display: block;
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.sidebar-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--panel-strong);
  padding: 14px;
}

.theme-toggle,
.floating-theme-toggle {
  display: inline-flex;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--ink);
  font-weight: 780;
}

.theme-toggle {
  width: 100%;
}

.floating-theme-toggle {
  position: fixed;
  right: 14px;
  bottom: 72px;
  z-index: 6;
  display: none;
  padding: 0 12px;
  box-shadow: var(--shadow);
}

.theme-icon {
  display: grid;
  width: 22px;
  height: 22px;
  place-items: center;
  color: var(--gold-dark);
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--coral);
  box-shadow: 0 0 0 6px color-mix(in srgb, var(--coral) 18%, transparent);
}

main {
  display: grid;
  gap: 28px;
  padding: 28px;
}

.hero,
.content-grid,
.split-layout,
.conference-section,
.preference-section,
.concierge-panel,
.conference-detail {
  position: relative;
  isolation: isolate;
}

.hero::before,
.content-grid::before,
.split-layout::before,
.conference-section::before,
.preference-section::before {
  position: absolute;
  inset: 0;
  z-index: -1;
  padding: 12px;
  background: var(--frame-tile) 0 0 / 26px 26px repeat;
  content: "";
  mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  mask-composite: exclude;
  pointer-events: none;
}

.concierge-panel::before,
.conference-detail::before {
  display: none;
}

.section-anchor {
  scroll-margin-top: 20px;
}

.hero {
  display: grid;
  min-height: min(720px, calc(100vh - 56px));
  grid-template-columns: minmax(360px, 0.95fr) minmax(420px, 1.05fr);
  align-items: stretch;
  gap: 22px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--panel) 94%, transparent), color-mix(in srgb, var(--panel-strong) 88%, transparent)),
    var(--panel);
  padding: 26px;
}

.hero-copy {
  position: relative;
  z-index: 4;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(28px, 6vw, 76px) clamp(8px, 3vw, 42px);
  text-shadow: none;
}

.hero-logo {
  width: min(340px, 72%);
  margin-bottom: 22px;
  content: url("./assets/the-key-lockup-ivory.png");
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.56));
}

.hero-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.search-glyph {
  display: none;
  color: rgba(245, 239, 228, 0.92);
  font-size: 2rem;
  line-height: 1;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--gold-dark);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 16px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3.2rem, 6vw, 5.9rem);
  font-weight: 400;
  line-height: 0.95;
}

h2 {
  margin-bottom: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  font-weight: 400;
  line-height: 1.05;
}

.hero-tabs {
  display: none;
  align-items: center;
  gap: 28px;
  margin: 0 0 18px;
}

.hero-tab {
  position: relative;
  color: rgba(245, 239, 228, 0.82);
  font-size: 1.02rem;
  font-weight: 760;
}

.hero-tab.active::after {
  position: absolute;
  right: 24%;
  bottom: -9px;
  left: 24%;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  content: "";
}

.hero-text {
  max-width: 560px;
  color: var(--copy);
  font-size: clamp(1rem, 2.1vw, 1.25rem);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
}

.button,
.icon-button,
.segment {
  border: 0;
  border-radius: var(--radius);
  transition:
    transform 160ms ease,
    background-color 160ms ease,
    color 160ms ease,
    border-color 160ms ease;
}

.button {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  font-weight: 820;
  letter-spacing: 0.01em;
  text-shadow: none;
}

.button:hover,
.icon-button:hover,
.segment:hover {
  transform: translateY(-1px);
}

.primary {
  background: var(--primary-bg);
  color: var(--primary-text);
}

.secondary {
  border: 1px solid var(--key-green);
  background: var(--panel-strong);
  color: var(--ink);
}

.hero-media {
  position: relative;
  overflow: hidden;
  min-height: 520px;
  border-radius: var(--radius);
  box-shadow: none;
}

.hero-media::after {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: linear-gradient(180deg, transparent 48%, rgba(0, 0, 0, 0.58));
  content: "";
}

.hero-media::before {
  position: absolute;
  right: -70px;
  bottom: 86px;
  z-index: 1;
  width: min(520px, 64%);
  aspect-ratio: 675 / 841;
  background: url("./assets/the-key-motif.png") center / contain no-repeat;
  content: "";
  opacity: 0.22;
  pointer-events: none;
}

.hero-media picture,
.hero-media img {
  width: 100%;
  height: 100%;
}

.hero-media picture {
  display: block;
  position: relative;
  z-index: 0;
}

.hero-media img {
  object-fit: cover;
}

.trip-card {
  position: absolute;
  right: 20px;
  bottom: 20px;
  z-index: 3;
  width: min(340px, calc(100% - 40px));
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: var(--radius);
  background: rgba(23, 21, 18, 0.72);
  color: white;
  padding: 16px;
  backdrop-filter: blur(14px);
}

.trip-card span,
.trip-card small {
  display: block;
  color: rgba(255, 255, 255, 0.7);
}

.trip-card strong {
  display: block;
  margin: 6px 0;
  font-size: 1.05rem;
}

.toolbar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  overflow: hidden;
  border: 10px solid transparent;
  border-image: var(--frame-tile) 38 round;
  border-radius: var(--radius);
  background:
    linear-gradient(
      color-mix(in srgb, var(--panel-strong) 82%, transparent),
      color-mix(in srgb, var(--panel-strong) 82%, transparent)
    ),
    var(--relief-texture) center / cover no-repeat,
    var(--panel-strong);
}

.toolbar > div {
  min-width: 0;
  background: color-mix(in srgb, var(--panel-strong) 86%, transparent);
  padding: 16px 18px;
}

.toolbar strong {
  display: block;
  overflow-wrap: anywhere;
}

.preference-section {
  display: grid;
  grid-template-columns: minmax(240px, 0.42fr) minmax(0, 1fr);
  gap: 16px;
  align-items: center;
  border: 0;
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--key-blue) 14%, transparent), transparent 38%),
    var(--panel);
  padding: 28px;
  box-shadow: none;
}

.preference-copy h2 {
  max-width: 320px;
}

.preference-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  min-height: 38px;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--panel-strong);
  color: var(--ink);
  padding: 0 14px;
  font-weight: 760;
}

.chip.active,
.chip:hover {
  border-color: var(--coral);
  background: var(--coral);
  color: var(--key-green);
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
}

.section-heading.compact {
  align-items: center;
}

.section-note {
  max-width: 620px;
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.segmented {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--panel-strong);
  padding: 4px;
}

.segment {
  min-height: 36px;
  white-space: nowrap;
  background: transparent;
  color: var(--muted);
  padding: 0 12px;
  font-weight: 730;
}

.segment.active {
  background: var(--key-green);
  color: var(--key-ivory-strong);
}

.content-grid,
.split-layout,
.conference-section {
  background: var(--panel);
  padding: clamp(22px, 3vw, 34px);
}

body[data-theme="dark"] .content-grid,
body[data-theme="dark"] .split-layout,
body[data-theme="dark"] .conference-section {
  background: rgba(0, 63, 57, 0.9);
}

.content-grid::after {
  position: absolute;
  left: clamp(-120px, -8vw, -44px);
  top: 66px;
  z-index: -1;
  width: min(420px, 42vw);
  aspect-ratio: 1;
  background: url("./assets/the-key-motif.png") left center / contain no-repeat;
  content: "";
  opacity: 0.16;
  pointer-events: none;
}

body[data-theme="dark"] .content-grid::after {
  mix-blend-mode: screen;
  opacity: 0.12;
}

.recommendation-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.recommendation-card,
.booking-item,
.conference-card,
.conference-detail,
.concierge-panel,
.itinerary-item {
  border: 1px solid color-mix(in srgb, var(--checker-color) 64%, var(--line));
  border-radius: var(--radius);
  background: var(--panel-strong);
  box-shadow: none;
}

.recommendation-card {
  display: grid;
  overflow: hidden;
  min-height: 100%;
}

.recommendation-card:first-child,
.recommendation-card:nth-child(6) {
  grid-column: span 2;
}

.recommendation-card:nth-child(4n + 2) {
  background: var(--panel-strong);
}

.recommendation-card:nth-child(4n + 2) .secondary {
  border-color: var(--key-green);
  background: var(--panel-strong);
  color: var(--key-green);
}

.recommendation-card:nth-child(4n + 3) {
  background: var(--panel-strong);
}

body[data-theme="dark"] .recommendation-card {
  background: rgba(0, 63, 57, 0.92);
}

body[data-theme="dark"] .recommendation-card:nth-child(4n + 2) {
  background: rgba(7, 74, 67, 0.96);
}

body[data-theme="dark"] .recommendation-card:nth-child(4n + 3) {
  background:
    linear-gradient(rgba(80, 102, 188, 0.82), rgba(80, 102, 188, 0.82)),
    var(--key-blue);
}

body[data-theme="dark"] .recommendation-card:nth-child(4n + 3) .recommendation-body h3,
body[data-theme="dark"] .recommendation-card:nth-child(4n + 3) .recommendation-body p,
body[data-theme="dark"] .recommendation-card:nth-child(4n + 3) .recommendation-body small {
  color: var(--key-ivory-strong);
}

body[data-theme="dark"] .recommendation-card:nth-child(4n + 2) .secondary {
  border-color: var(--coral);
  background: transparent;
  color: var(--key-ivory-strong);
}

.recommendation-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.recommendation-body {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.card-row {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 12px;
}

.tag,
.pill {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  border-radius: var(--radius);
  padding: 0 10px;
  font-size: 0.76rem;
  font-weight: 800;
  white-space: nowrap;
}

.tag {
  background: color-mix(in srgb, var(--key-blue) 16%, transparent);
  color: var(--gold-dark);
}

.pill {
  background: color-mix(in srgb, var(--key-green) 10%, transparent);
  color: var(--key-green);
}

.recommendation-body h3,
.booking-item h3,
.conference-card h3,
.conference-detail h3 {
  margin: 0;
  font-size: 1rem;
  line-height: 1.25;
}

.recommendation-body p,
.booking-item p,
.conference-card p,
.conference-detail p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.5;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 0.75fr);
  gap: 18px;
  align-items: start;
}

.booking-list,
.conference-list,
.itinerary-list {
  display: grid;
  gap: 12px;
}

.subheading {
  margin: 28px 0 12px;
}

.itinerary-item {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) auto;
  gap: 14px;
  align-items: center;
  padding: 14px 16px;
}

.itinerary-day {
  display: grid;
  width: 58px;
  height: 58px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--soft);
  color: var(--gold-dark);
  font-weight: 860;
}

.itinerary-item h3 {
  margin: 0 0 4px;
  font-size: 1rem;
}

.itinerary-item p {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.booking-item {
  display: grid;
  gap: 10px;
  padding: 16px;
}

.booking-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.status {
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--coral) 18%, transparent);
  color: var(--ink);
  padding: 5px 9px;
  font-size: 0.75rem;
  font-weight: 800;
}

.icon-button {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  background: var(--primary-bg);
  color: var(--primary-text);
  font-size: 1.35rem;
  line-height: 1;
}

.concierge-panel {
  position: sticky;
  top: 28px;
  display: grid;
  gap: 14px;
  padding: 16px;
}

.chat-window {
  display: flex;
  min-height: 260px;
  max-height: 360px;
  flex-direction: column;
  gap: 10px;
  overflow-y: auto;
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--checker-color) 42%, transparent);
  background:
    linear-gradient(color-mix(in srgb, var(--soft) 92%, transparent), color-mix(in srgb, var(--soft) 92%, transparent)),
    var(--panel);
  padding: 12px;
}

.message {
  max-width: 86%;
  border-radius: var(--radius);
  padding: 10px 12px;
  line-height: 1.45;
}

.message.agent {
  align-self: start;
  background: var(--panel-strong);
}

.message.user {
  align-self: end;
  background: var(--key-blue);
  color: var(--key-ivory-strong);
}

.chat-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background: var(--field);
  color: var(--ink);
  padding: 12px;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus,
button:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(15, 110, 122, 0.28);
  outline-offset: 2px;
}

.conference-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.72fr) minmax(0, 1fr);
  gap: 16px;
}

.conference-card {
  display: grid;
  gap: 8px;
  border-color: color-mix(in srgb, var(--checker-color) 34%, transparent);
  padding: 16px;
  text-align: left;
}

.conference-card.active {
  border-color: var(--coral);
  background:
    linear-gradient(90deg, color-mix(in srgb, var(--coral) 16%, transparent), transparent 40%),
    var(--panel-strong);
  box-shadow: none;
}

.event-context {
  display: grid;
  gap: 3px;
  border-radius: var(--radius);
  background:
    linear-gradient(
      color-mix(in srgb, var(--soft) 82%, transparent),
      color-mix(in srgb, var(--soft) 82%, transparent)
    ),
    var(--relief-texture) center / cover no-repeat,
    var(--soft);
  padding: 10px 12px;
}

.event-context span {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 780;
  text-transform: uppercase;
  letter-spacing: 0;
}

.event-context strong {
  color: var(--copy);
  font-size: 0.92rem;
  line-height: 1.3;
}

.conference-detail {
  min-height: 100%;
  padding: 20px;
}

.conference-detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.metric {
  border-radius: var(--radius);
  border: 1px solid color-mix(in srgb, var(--checker-color) 30%, transparent);
  background: var(--soft);
  padding: 14px;
}

.metric span,
.metric strong {
  display: block;
}

.metric span {
  color: var(--muted);
  font-size: 0.78rem;
}

.metric strong {
  margin-top: 4px;
  font-size: 1.1rem;
}

.plan-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plan-list li {
  border: 1px solid color-mix(in srgb, var(--coral) 42%, transparent);
  background: color-mix(in srgb, var(--coral) 10%, transparent);
  padding: 10px 12px;
  line-height: 1.45;
}

.bottom-nav {
  position: fixed;
  right: 12px;
  bottom: 12px;
  left: 12px;
  z-index: 5;
  display: none;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
  border: 1px solid var(--checker-color);
  border-radius: var(--radius);
  background:
    linear-gradient(
      color-mix(in srgb, var(--panel-strong) 74%, transparent),
      color-mix(in srgb, var(--panel-strong) 74%, transparent)
    ),
    var(--relief-texture) center 56% / cover no-repeat,
    var(--panel-strong);
  padding: 6px;
  box-shadow: 0 18px 42px rgba(23, 21, 18, 0.18);
  backdrop-filter: blur(18px);
}

.mobile-link {
  display: grid;
  min-height: 42px;
  place-items: center;
  border-radius: var(--radius);
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
}

.mobile-link.active {
  background: var(--key-blue);
  color: var(--key-ivory-strong);
}

.booking-dialog {
  width: min(520px, calc(100% - 24px));
  border: 0;
  border-radius: var(--radius);
  padding: 0;
  border: 10px solid transparent;
  border-image: repeating-linear-gradient(
      90deg,
      var(--checker-color) 0 8px,
      transparent 8px 16px
    )
    10;
  box-shadow: var(--shadow);
}

.booking-dialog::backdrop {
  background: rgba(23, 21, 18, 0.42);
  backdrop-filter: blur(4px);
}

.dialog-card {
  display: grid;
  gap: 14px;
  background: var(--panel);
  padding: 18px;
}

.dialog-card label {
  display: grid;
  gap: 6px;
  color: var(--copy);
  font-size: 0.88rem;
  font-weight: 760;
}

.full-width {
  width: 100%;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@media (max-width: 1120px) {
  :root {
    --radius: 8px;
  }

  body {
    background:
      linear-gradient(180deg, rgba(80, 102, 188, 0.18), rgba(0, 63, 57, 0.08) 38%, transparent),
      var(--paper);
  }

  body[data-theme="light"] {
    background:
      linear-gradient(180deg, rgba(80, 102, 188, 0.16), rgba(0, 63, 57, 0.08) 38%, transparent),
      var(--paper);
  }

  .app-shell {
    grid-template-columns: 1fr;
    justify-items: center;
    min-height: 100dvh;
  }

  .sidebar {
    display: none;
  }

  main {
    width: min(100%, 454px);
    gap: 18px;
    min-height: 100dvh;
    overflow: hidden;
    border-inline: 1px solid rgba(180, 199, 193, 0.08);
    background:
      linear-gradient(180deg, color-mix(in srgb, var(--paper) 84%, transparent), color-mix(in srgb, var(--paper) 96%, transparent)),
      var(--paper);
    padding: 0 14px 104px;
    box-shadow: 0 0 90px rgba(0, 0, 0, 0.38);
  }

  .bottom-nav {
    display: grid;
    right: max(12px, calc((100vw - 430px) / 2 + 12px));
    left: max(12px, calc((100vw - 430px) / 2 + 12px));
    grid-template-columns: repeat(4, 1fr);
    min-height: 68px;
    border-color: var(--checker-color);
    border-radius: var(--radius);
    background:
      linear-gradient(
        color-mix(in srgb, var(--panel-strong) 70%, transparent),
        color-mix(in srgb, var(--panel-strong) 70%, transparent)
      ),
      var(--relief-texture) center 56% / cover no-repeat,
      var(--panel-strong);
    padding: 8px;
    box-shadow: 0 18px 42px rgba(0, 0, 0, 0.34);
  }

  .floating-theme-toggle {
    display: inline-flex;
    top: 14px;
    right: max(20px, calc((100vw - 430px) / 2 + 20px));
    bottom: auto;
    width: 48px;
    min-height: 48px;
    border-color: rgba(245, 239, 228, 0.16);
    border-radius: var(--radius);
    background: var(--panel-strong);
    color: var(--ink);
    padding: 0;
  }

  .floating-theme-toggle [data-theme-label] {
    display: none;
  }

  .hero {
    position: relative;
    display: block;
    min-height: 650px;
    margin: 0 -14px 2px;
    overflow: hidden;
    border-radius: 0;
  }

  .hero::before {
    display: none;
  }

  .hero-copy {
    position: absolute;
    inset: 58px 32px auto;
    z-index: 4;
    min-height: 0;
    padding: 0;
    color: #f6efe4;
    text-shadow:
      0 2px 8px rgba(0, 0, 0, 0.82),
      0 18px 38px rgba(0, 0, 0, 0.58);
  }

  .hero-media {
    min-height: 650px;
    border-radius: 0;
    box-shadow: none;
  }

  .hero-media::after {
    background:
      linear-gradient(180deg, rgba(8, 10, 9, 0.42), rgba(8, 10, 9, 0.5) 42%, rgba(8, 10, 9, 0.94)),
      linear-gradient(90deg, rgba(8, 10, 9, 0.74), rgba(8, 10, 9, 0.42) 42%, rgba(8, 10, 9, 0.12) 78%);
  }

  .hero-topline .eyebrow {
    margin-bottom: 28px;
    color: rgba(246, 239, 228, 0.9);
    font-size: 0.82rem;
    letter-spacing: 0;
    text-transform: none;
  }

  .hero-tabs {
    display: flex;
  }

  h1 {
    margin-bottom: 18px;
    color: #f6efe4;
    font-size: 3.18rem;
    line-height: 0.95;
  }

  h2 {
    font-size: 2.05rem;
  }

  .hero-text {
    max-width: 28ch;
    color: rgba(246, 239, 228, 0.82);
    font-size: 1rem;
    line-height: 1.45;
  }

  .hero-actions {
    margin-top: 18px;
  }

  .trip-card {
    right: 32px;
    bottom: 8px;
    left: 32px;
    width: auto;
    border-color: var(--checker-color);
    background: color-mix(in srgb, var(--key-green) 86%, transparent);
    padding: 15px 16px;
  }

  .toolbar {
    margin-top: 18px;
    border-color: var(--checker-color);
    background: var(--checker-color);
  }

  .toolbar > div,
  .preference-section,
  .concierge-panel,
  .conference-detail {
    background: var(--panel-strong);
  }

  .section-heading {
    margin-bottom: 14px;
  }

  .section-heading h2 {
    color: var(--ink);
  }

  .segmented {
    width: 100%;
    border-color: var(--checker-color);
    border-radius: var(--radius);
    background: var(--panel-strong);
    padding: 5px;
  }

  .segment {
    min-height: 40px;
    border-radius: var(--radius);
    font-size: 0.92rem;
  }

  .mobile-link {
    gap: 2px;
    min-height: 52px;
    border-radius: var(--radius);
    color: var(--muted);
  }

  .mobile-link .nav-icon {
    width: 23px;
    height: 23px;
    stroke-width: 1.85;
  }

  .mobile-link small {
    font-size: 0.7rem;
    font-weight: 820;
  }

  .mobile-link.active {
    background: var(--key-blue);
    color: var(--key-ivory-strong);
  }

  .mobile-link.active .nav-icon {
    stroke-width: 2.15;
  }
}

@media (max-width: 860px) {
  main {
    gap: 22px;
  }

  .toolbar,
  .split-layout,
  .conference-grid,
  .preference-section {
    grid-template-columns: 1fr;
  }

  .section-heading {
    align-items: start;
    flex-direction: column;
  }

  .section-heading.compact {
    align-items: center;
    flex-direction: row;
  }

  .concierge-panel {
    position: static;
  }

  .conference-detail-grid {
    grid-template-columns: 1fr;
  }

  .itinerary-item {
    grid-template-columns: 58px minmax(0, 1fr);
  }

  .itinerary-item .status {
    grid-column: 2;
    width: fit-content;
  }

  .content-grid {
    overflow: hidden;
  }

  .recommendation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .recommendation-card {
    position: relative;
    display: grid;
    min-height: 0;
    overflow: hidden;
    border: 1px solid color-mix(in srgb, var(--checker-color) 58%, var(--line));
    background: var(--panel-strong);
    box-shadow: none;
  }

  .recommendation-card:first-child,
  .recommendation-card:nth-child(6) {
    grid-column: auto;
    min-height: 0;
  }

  .recommendation-card img {
    height: auto;
    min-height: 0;
    aspect-ratio: 16 / 10;
    filter: saturate(0.95) contrast(1.02);
  }

  .recommendation-card::after {
    display: none;
  }

  .recommendation-body {
    position: static;
    gap: 8px;
    padding: 14px;
    color: var(--ink);
    text-shadow: none;
  }

  .recommendation-body h3 {
    color: var(--ink);
    font-size: 1.08rem;
    text-shadow: none;
  }

  .recommendation-body p {
    display: block;
    overflow-wrap: anywhere;
  }

  .recommendation-body small {
    color: var(--muted);
    text-shadow: none;
  }

  .recommendation-body .button {
    min-height: 34px;
    width: auto;
    max-width: 100%;
    border-color: var(--checker-color);
    background: var(--panel-strong);
    color: var(--ink);
    padding: 0 12px;
    box-shadow: none;
    text-shadow: none;
  }

  .recommendation-body .card-row {
    flex-wrap: wrap;
  }

  .recommendation-body .card-row > div {
    min-width: min(100%, 16rem);
  }

  .tag,
  .pill,
  .status {
    background: color-mix(in srgb, var(--checker-color) 22%, transparent);
    color: var(--key-ivory-strong);
  }

  .recommendation-card .tag,
  .recommendation-card .pill {
    border: 1px solid color-mix(in srgb, var(--checker-color) 42%, transparent);
    background: var(--soft);
    color: var(--ink);
    max-width: 100%;
    justify-content: center;
    flex-shrink: 1;
    overflow-wrap: anywhere;
    text-align: center;
    white-space: normal;
    box-shadow: none;
    text-shadow: none;
  }

  body[data-theme="dark"] .recommendation-body .button {
    border-color: var(--gold);
    background: transparent;
    color: var(--key-ivory-strong);
  }

  body[data-theme="dark"] .recommendation-card .tag,
  body[data-theme="dark"] .recommendation-card .pill {
    background: rgba(111, 131, 222, 0.18);
    color: var(--key-ivory-strong);
  }

  .itinerary-item,
  .booking-item,
  .conference-card {
    border-color: color-mix(in srgb, var(--checker-color) 48%, transparent);
    background: var(--panel-strong);
  }

  .itinerary-item {
    padding: 14px;
  }

  .itinerary-day {
    background:
      linear-gradient(
        color-mix(in srgb, var(--soft) 76%, transparent),
        color-mix(in srgb, var(--soft) 76%, transparent)
      ),
      var(--relief-texture) center / cover no-repeat,
      var(--soft);
    color: var(--gold-dark);
  }
}

@media (max-width: 540px) {
  .hero {
    min-height: 800px;
  }

  .hero-copy {
    top: 46px;
    right: 26px;
    left: 26px;
  }

  h1 {
    max-width: 100%;
    font-size: 2.48rem;
    line-height: 1;
  }

  .hero-media {
    min-height: 800px;
  }

  .chat-form {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-actions .button {
    padding-inline: 8px;
    font-size: 0.88rem;
  }

  .button {
    width: 100%;
  }

  .trip-card {
    right: 20px;
    bottom: 112px;
    left: 20px;
    width: auto;
  }
}