:root {
  --ink: #14213d;
  --muted: #5e6c84;
  --line: #d8e0ea;
  --paper: #f5f7fb;
  --panel: #ffffff;
  --blue: #0047a8;
  --blue-dark: #002f6c;
  --green: #008060;
  --amber: #b35c00;
  --shadow: 0 18px 55px rgba(20, 33, 61, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, Segoe UI, Roboto, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  overflow-x: hidden;
}

button,
input,
select {
  font: inherit;
}

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

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 12px clamp(18px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.08rem;
  flex: 0 0 auto;
}

.brand-mark-img {
  display: block;
  width: 36px;
  height: 45px;
  object-fit: contain;
}

.footer-logo {
  display: block;
  width: 150px;
  height: auto;
}

.top-nav {
  display: flex;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 800;
  min-width: 0;
}

.top-nav a:hover {
  color: var(--blue-dark);
}

.top-nav a.active {
  color: var(--blue);
}

.partner-link,
.auth-button {
  color: var(--blue-dark);
  font-weight: 700;
}

.header-tools,
.auth-actions,
.user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-tool {
  min-height: 36px;
  padding: 0 10px;
  color: var(--ink);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 800;
}

.header-tool:hover,
.account-button:hover,
.ghost-button:hover {
  background: #eef4f7;
  border-color: var(--line);
}

.auth-button,
.account-button,
.ghost-button,
.secondary-button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-weight: 800;
}

.account-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: #fff;
}

.account-dot {
  width: 9px;
  height: 9px;
  background: #16a34a;
  border-radius: 999px;
}

.auth-button {
  padding: 0 12px;
  background: #e8f2fb;
  border-color: #cfe2f5;
}

.ghost-button {
  padding: 0 12px;
  color: var(--blue-dark);
}

.secondary-button {
  min-height: 46px;
  padding: 0 16px;
  color: var(--blue-dark);
  background: #f4f8fb;
}

.search-hero {
  position: relative;
  min-height: 620px;
  overflow-x: hidden;
  overflow-y: visible;
  display: grid;
  align-items: end;
  padding: 86px clamp(18px, 5vw, 72px) 42px;
}

.search-hero > img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.search-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(4, 20, 45, 0.78), rgba(4, 20, 45, 0.36) 54%, rgba(4, 20, 45, 0.14));
}

.hero-overlay,
.search-panel {
  position: relative;
  z-index: 3;
}

.hero-overlay {
  max-width: 760px;
  color: #fff;
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 8px;
  color: #2f7f69;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero-overlay .eyebrow {
  color: #b8f7ff;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 14px;
  font-size: clamp(2.1rem, 5vw, 4.35rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero-copy {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.08rem;
  line-height: 1.55;
}

.search-panel {
  width: min(1120px, 100%);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid rgba(255, 255, 255, 0.62);
  border-radius: 8px;
  box-shadow: var(--shadow);
  padding: 18px;
  isolation: isolate;
}

.search-panel:focus-within {
  z-index: 120;
}

.trip-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.tab,
.filter-head button,
.primary-button {
  border: 0;
  cursor: pointer;
  border-radius: 8px;
  font-weight: 800;
}

.tab {
  padding: 10px 16px;
  color: var(--muted);
  background: #eef4f7;
}

.tab.active {
  color: #fff;
  background: var(--blue);
}

.trust-strip {
  position: relative;
  z-index: 1;
  width: min(1120px, 100%);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-top: 18px;
  color: #16324f;
}

.trust-strip span {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(255, 255, 255, 0.68);
  border-radius: 8px;
  box-shadow: 0 10px 26px rgba(4, 20, 45, 0.12);
  font-size: 0.86rem;
  font-weight: 900;
}

.form-grid {
  display: grid;
  grid-template-columns: minmax(150px, 1.15fr) minmax(150px, 1.15fr) minmax(130px, 0.9fr) minmax(130px, 0.9fr) minmax(95px, 0.7fr);
  gap: 12px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 800;
}

input,
select {
  width: 100%;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.field-wrap {
  position: relative;
  display: block;
}

.suggestions {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 100;
  display: none;
  overflow: hidden;
  width: min(560px, calc(100vw - 36px));
  max-height: 360px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 45px rgba(23, 32, 42, 0.18);
}

.suggestions.open {
  display: grid;
}

.suggestion-head {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  background: #f7faff;
  border-bottom: 1px solid var(--line);
}

.suggestion-head strong {
  color: var(--ink);
  font-size: 0.95rem;
}

.suggestion-head span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.suggestion-list {
  display: grid;
  overflow: auto;
  max-height: 260px;
}

.suggestion-button {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 12px 14px;
  color: var(--ink);
  text-align: left;
  background: #fff;
  border: 0;
  border-bottom: 1px solid #edf2f5;
  cursor: pointer;
}

.suggestion-button:last-child {
  border-bottom: 0;
}

.suggestion-button:hover,
.suggestion-button:focus {
  background: #eef5ff;
  outline: none;
}

.suggestion-icon {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--blue), #00a6a6);
  border-radius: 8px;
  font-weight: 900;
}

.suggestion-main {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.suggestion-title {
  overflow: hidden;
  color: var(--ink);
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.suggestion-meta,
.suggestion-sub {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.suggestion-sub {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.suggestion-code {
  align-self: center;
  color: var(--blue-dark);
  background: #eaf2ff;
  border-radius: 999px;
  padding: 6px 8px;
  font-size: 0.78rem;
  font-weight: 900;
}

.suggestion-empty {
  padding: 16px;
  color: var(--muted);
  font-weight: 700;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 14px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.form-message {
  min-height: 20px;
  margin: 10px 0 0;
  color: #9b3d16;
  font-size: 0.9rem;
  font-weight: 700;
}

.form-message.ok {
  color: #1f6f50;
}

.primary-button {
  min-height: 46px;
  padding: 0 22px;
  color: #fff;
  background: var(--blue);
}

.primary-button:hover,
.deal-button:hover {
  background: var(--blue-dark);
}

#searchHint {
  color: var(--muted);
  font-size: 0.9rem;
}

.workspace {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  padding: 30px clamp(18px, 4vw, 48px);
  align-items: start;
}

.filters,
.summary-strip,
.result-card,
.guide-grid article {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.filters {
  position: sticky;
  top: 82px;
  display: grid;
  gap: 16px;
  padding: 18px;
}

.filters label {
  padding-bottom: 14px;
  border-bottom: 1px solid #eef2f6;
}

.filters label:last-of-type {
  border-bottom: 0;
}

.filter-head,
.section-title,
.result-main,
.result-meta,
.result-actions,
.summary-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.filter-head h2,
.section-title h2 {
  margin: 0;
}

.filter-head button {
  color: var(--blue-dark);
  background: #eaf2ff;
  padding: 8px 10px;
}

.range-label strong {
  color: var(--ink);
}

.check-row {
  display: flex;
  grid-template-columns: auto 1fr;
  align-items: center;
  color: var(--ink);
  padding-bottom: 0;
  border-bottom: 0;
}

.check-row input {
  width: 18px;
  min-height: 18px;
}

.active-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-pill {
  color: #315161;
  background: #eef4f7;
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 0.78rem;
  font-weight: 800;
}

.filter-status {
  color: var(--blue-dark);
  background: #eaf2ff;
  border: 1px solid #cfe0f5;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.84rem;
  font-weight: 900;
}

.is-disabled {
  opacity: 0.48;
}

.saved-panel {
  display: grid;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--line);
}

.saved-list {
  display: grid;
  gap: 8px;
}

.saved-item {
  display: grid;
  gap: 5px;
  padding: 10px;
  background: #f8fbfc;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.saved-item strong {
  font-size: 0.9rem;
}

.saved-item span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.saved-actions {
  display: flex;
  gap: 8px;
}

.saved-actions button {
  min-height: 30px;
  padding: 0 8px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fff;
  cursor: pointer;
  font-size: 0.78rem;
  font-weight: 800;
}

.results-area {
  min-width: 0;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 18px;
  margin-bottom: 24px;
}

.summary-label {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.summary-strip strong {
  display: block;
  margin-top: 4px;
  font-size: 1.35rem;
}

.section-title {
  margin-bottom: 16px;
}

.section-title > p,
#resultCount {
  color: var(--muted);
}

.results-list {
  display: grid;
  gap: 12px;
}

.result-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  padding: 16px;
  transition: transform 150ms ease, box-shadow 150ms ease, border-color 150ms ease;
}

.result-card:hover {
  border-color: rgba(11, 107, 203, 0.35);
  box-shadow: 0 14px 34px rgba(23, 32, 42, 0.1);
  transform: translateY(-1px);
}

.result-card.empty {
  display: block;
}

.result-main {
  align-items: flex-start;
  justify-content: flex-start;
}

.provider-badge {
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 46px;
  place-items: center;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-dark), var(--blue));
  border-radius: 8px;
  font-weight: 900;
}

.result-card h3 {
  margin-bottom: 6px;
  font-size: 1.05rem;
}

.result-meta {
  justify-content: flex-start;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.9rem;
}

.tag {
  color: #0c6248;
  background: #e5f7f1;
  border-radius: 999px;
  padding: 5px 9px;
  font-weight: 800;
}

.price {
  text-align: right;
}

.price strong {
  display: block;
  font-size: 1.55rem;
}

.price span {
  color: var(--muted);
  font-size: 0.82rem;
}

.result-actions {
  margin-top: 12px;
  justify-content: flex-end;
}

.deal-button {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 0 13px;
  color: #fff;
  background: var(--blue);
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 800;
}

.demo-note {
  display: block;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.78rem;
}

.date-lab,
.seo-lab {
  padding: 24px clamp(18px, 4vw, 48px) 36px;
}

.date-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(135px, 1fr));
  gap: 12px;
}

.date-cell {
  padding: 15px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
  cursor: pointer;
}

.date-cell.best {
  border-color: rgba(0, 128, 96, 0.6);
  box-shadow: 0 10px 28px rgba(0, 128, 96, 0.16);
}

.date-cell span {
  display: block;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.date-cell strong {
  display: block;
  margin: 7px 0;
  font-size: 1.3rem;
}

.guide-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.guide-grid article {
  padding: 18px;
}

.guide-grid span {
  color: var(--amber);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.guide-grid h3 {
  margin: 8px 0;
}

.guide-grid p,
.site-footer {
  color: var(--muted);
}

.site-footer {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 18px 32px;
  align-items: center;
  padding: 28px clamp(18px, 4vw, 48px) 42px;
  border-top: 1px solid var(--line);
  background: #fff;
}

.site-footer p {
  grid-column: 1 / -1;
  max-width: 980px;
  margin-bottom: 0;
}

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

.footer-brand strong {
  font-size: 1.05rem;
}

.footer-links {
  justify-content: flex-end;
  flex-wrap: wrap;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(13, 25, 35, 0.52);
}

.modal-backdrop[hidden],
[hidden] {
  display: none !important;
}

.auth-modal {
  position: relative;
  width: min(430px, 100%);
  display: grid;
  gap: 14px;
  padding: 22px;
  background: #fff;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.auth-copy {
  margin: -4px 0 0;
  color: var(--muted);
  line-height: 1.45;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  cursor: pointer;
  font-weight: 900;
}

.auth-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.auth-tab {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f4f8fb;
  cursor: pointer;
  font-weight: 900;
}

.auth-tab.active {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

#authForm {
  display: grid;
  gap: 12px;
}

@media (max-width: 920px) {
  .app-header {
    gap: 12px;
  }

  .top-nav {
    order: 3;
    width: 100%;
    overflow-x: auto;
    padding: 4px 0 2px;
    scrollbar-width: none;
  }

  .top-nav::-webkit-scrollbar {
    display: none;
  }

  .header-tools {
    display: none;
  }

  .search-hero {
    min-height: auto;
    padding-top: 54px;
  }

  .workspace,
  .summary-strip,
  .guide-grid {
    grid-template-columns: 1fr;
  }

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

  .filters {
    position: static;
  }

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

  .trust-strip,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (max-width: 620px) {
  .app-header {
    flex-wrap: wrap;
    padding-inline: 14px;
    gap: 10px;
  }

  .brand {
    font-size: 1rem;
  }

  .brand-mark-img {
    width: 32px;
    height: 40px;
  }

  .auth-actions,
  .user-menu {
    margin-left: auto;
  }

  .account-button {
    min-height: 34px;
    padding-inline: 10px;
    font-size: 0.88rem;
  }

  .partner-link {
    display: none;
  }

  .search-hero {
    padding: 34px 14px 22px;
  }

  h1 {
    font-size: 2.12rem;
    line-height: 1.07;
  }

  .hero-copy {
    font-size: 1rem;
  }

  .trip-tabs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .tab {
    padding-inline: 8px;
  }

  .search-panel {
    padding: 14px;
  }

  .form-grid,
  .trust-strip,
  .summary-strip,
  .guide-grid {
    grid-template-columns: 1fr;
  }

  .suggestions {
    width: calc(100vw - 28px);
    max-height: 72vh;
  }

  .suggestion-button {
    grid-template-columns: 34px 1fr;
  }

  .suggestion-code {
    grid-column: 2;
    justify-self: start;
  }

  .form-actions {
    gap: 10px;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  #searchHint {
    width: 100%;
  }

  .workspace,
  .date-lab,
  .seo-lab,
  .site-footer {
    padding-inline: 14px;
  }

  .section-title {
    align-items: flex-start;
    display: grid;
  }

  .form-actions,
  .result-card,
  .result-main {
    display: grid;
    grid-template-columns: 1fr;
  }

  .price,
  .result-actions {
    text-align: left;
    justify-content: flex-start;
  }

  .date-grid {
    grid-template-columns: 1fr;
  }

  .auth-modal {
    max-height: calc(100vh - 28px);
    overflow: auto;
    padding: 18px;
  }
}

@media (max-width: 390px) {
  .brand span {
    display: none;
  }

  .top-nav {
    gap: 14px;
    font-size: 0.88rem;
  }

  h1 {
    font-size: 1.82rem;
  }

  .trip-tabs {
    gap: 6px;
  }

  .tab {
    font-size: 0.88rem;
  }
}