:root {
  color-scheme: light;
  --ink: #153332;
  --ink-soft: #52706e;
  --paper: #f5f2e9;
  --panel: #fffdf8;
  --line: #d9ded6;
  --teal: #0c7369;
  --teal-deep: #07564f;
  --teal-wash: #e6f2ee;
  --amber: #e5a44a;
  --danger: #9e3e32;
  --shadow: 0 24px 70px rgb(24 52 50 / 10%);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 86% 8%, rgb(229 164 74 / 16%), transparent 24rem),
    linear-gradient(180deg, #efece2 0, var(--paper) 28rem);
  font-family: "Segoe UI", Aptos, system-ui, sans-serif;
  line-height: 1.5;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: var(--teal-deep);
  text-underline-offset: 0.2em;
}

.page-width {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.masthead {
  padding: 72px 0 48px;
  color: #f9f7ef;
  background:
    linear-gradient(115deg, rgb(8 76 70 / 96%), rgb(14 48 48 / 98%)),
    #0b4944;
  position: relative;
  overflow: hidden;
}

.masthead::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border: 1px solid rgb(255 255 255 / 10%);
  border-radius: 50%;
  right: -80px;
  top: -250px;
  box-shadow:
    0 0 0 55px rgb(255 255 255 / 3%),
    0 0 0 110px rgb(255 255 255 / 2%);
}

.masthead-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 64px;
  align-items: end;
}

.eyebrow,
.step-label {
  margin: 0 0 10px;
  color: var(--amber);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 770px;
  margin-bottom: 20px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.65rem, 6vw, 5.2rem);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.lede {
  max-width: 680px;
  margin-bottom: 0;
  color: rgb(249 247 239 / 72%);
  font-size: 1.05rem;
}

.database-card {
  padding: 22px;
  color: var(--ink);
  background: rgb(255 253 248 / 94%);
  border: 1px solid rgb(255 255 255 / 25%);
  border-radius: 18px;
  box-shadow: 0 20px 50px rgb(0 0 0 / 20%);
  backdrop-filter: blur(12px);
}

.database-heading {
  display: flex;
  gap: 10px;
  align-items: center;
  font-weight: 800;
}

.status-dot {
  width: 11px;
  height: 11px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: #82938e;
  box-shadow: 0 0 0 5px rgb(130 147 142 / 13%);
}

.database-card[data-state="ready"] .status-dot {
  background: #1b9b70;
  box-shadow: 0 0 0 5px rgb(27 155 112 / 13%);
}

.database-card[data-state="error"] .status-dot {
  background: var(--danger);
  box-shadow: 0 0 0 5px rgb(158 62 50 / 12%);
}

.database-card[data-state="loading"] .status-dot,
.database-card[data-state="downloading"] .status-dot,
.database-card[data-state="updating"] .status-dot {
  background: var(--amber);
  animation: pulse 1.4s ease-in-out infinite;
}

#status-message {
  margin: 14px 0 16px;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.database-meta {
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
}

.builder-panel {
  position: relative;
  z-index: 2;
  margin-top: -24px;
  overflow: hidden;
  background: var(--panel);
  border: 1px solid rgb(21 51 50 / 8%);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.list-settings {
  display: grid;
  grid-template-columns: minmax(220px, 0.8fr) minmax(380px, 1.2fr);
  gap: 56px;
  padding: 38px 44px;
  border-bottom: 1px solid var(--line);
}

h2 {
  margin-bottom: 8px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.45rem, 3vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.section-copy,
.field-help {
  margin-bottom: 0;
  color: var(--ink-soft);
  font-size: 0.88rem;
}

.settings-fields {
  display: grid;
}

.field-label {
  margin-bottom: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

#list-name {
  width: 100%;
  height: 52px;
  padding: 0 16px;
  color: var(--ink);
  background: #fbfaf5;
  border: 1px solid #bdc8c1;
  border-radius: 10px;
  outline: none;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.95rem;
  transition: border-color 150ms ease, box-shadow 150ms ease;
}

#list-name:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgb(12 115 105 / 10%);
}

#list-name[aria-invalid="true"] {
  border-color: var(--danger);
}

.field-help {
  margin-top: 7px;
}

.check-row {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  margin-top: 20px;
  cursor: pointer;
}

.check-row input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--teal);
}

.check-row span {
  display: grid;
  gap: 1px;
}

.check-row strong {
  font-size: 0.86rem;
}

.check-row small {
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.country-section {
  padding: 38px 44px 32px;
}

.country-heading-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
}

.selection-summary {
  display: flex;
  gap: 6px;
  align-items: baseline;
  color: var(--ink-soft);
  font-size: 0.84rem;
  white-space: nowrap;
}

.selection-summary strong {
  color: var(--teal-deep);
  font-size: 1rem;
}

.country-toolbar {
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  margin: 24px 0 18px;
}

.search-box {
  position: relative;
  width: min(430px, 100%);
}

.search-box svg {
  position: absolute;
  width: 18px;
  height: 18px;
  top: 50%;
  left: 14px;
  fill: none;
  stroke: var(--ink-soft);
  stroke-width: 1.8;
  transform: translateY(-50%);
  pointer-events: none;
}

#country-search {
  width: 100%;
  height: 44px;
  padding: 0 14px 0 42px;
  color: var(--ink);
  background: #f7f6f0;
  border: 1px solid var(--line);
  border-radius: 10px;
  outline: none;
}

#country-search:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 4px rgb(12 115 105 / 9%);
}

.toolbar-actions {
  display: flex;
  gap: 6px;
}

.text-button {
  padding: 8px 10px;
  color: var(--teal-deep);
  background: transparent;
  border: 0;
  border-radius: 7px;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.text-button:hover {
  background: var(--teal-wash);
}

.text-button.subtle {
  color: var(--ink-soft);
}

.text-button:focus-visible,
.primary-button:focus-visible,
.country-option:focus-within {
  outline: 3px solid rgb(12 115 105 / 22%);
  outline-offset: 2px;
}

.country-state {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  color: var(--ink-soft);
  background: #f8f7f1;
  border: 1px dashed #ced4cc;
  border-radius: 14px;
  font-size: 0.9rem;
}

.loading-mark {
  width: 18px;
  height: 18px;
  border: 2px solid rgb(12 115 105 / 20%);
  border-top-color: var(--teal);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.country-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  max-height: 470px;
  padding: 4px;
  overflow-y: auto;
  scrollbar-color: #b7c5be transparent;
}

.country-option {
  display: flex;
  min-width: 0;
  gap: 10px;
  align-items: center;
  padding: 11px 12px;
  background: #fbfaf6;
  border: 1px solid #e0e3dc;
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.country-option:hover {
  border-color: #9dbab1;
  transform: translateY(-1px);
}

.country-option:has(input:checked) {
  background: var(--teal-wash);
  border-color: #83b3a8;
}

.country-option input {
  width: 17px;
  height: 17px;
  flex: 0 0 auto;
  margin: 0;
  accent-color: var(--teal);
}

.country-name {
  min-width: 0;
  overflow: hidden;
  font-size: 0.84rem;
  font-weight: 650;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.country-code {
  margin-left: auto;
  color: var(--ink-soft);
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.69rem;
  font-weight: 700;
}

.country-option.is-hidden {
  display: none;
}

.no-results {
  padding: 40px 20px;
  color: var(--ink-soft);
  text-align: center;
}

.build-bar {
  display: flex;
  gap: 30px;
  align-items: center;
  justify-content: space-between;
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.build-label {
  display: block;
  margin-bottom: 2px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.build-detail {
  color: var(--ink-soft);
  font-size: 0.82rem;
}

.primary-button {
  display: inline-flex;
  min-height: 50px;
  flex: 0 0 auto;
  gap: 12px;
  align-items: center;
  justify-content: center;
  padding: 0 20px;
  color: #fff;
  background: var(--teal);
  border: 0;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgb(12 115 105 / 18%);
  font-size: 0.85rem;
  font-weight: 750;
  cursor: pointer;
  transition: background 140ms ease, transform 140ms ease;
}

.primary-button:hover:not(:disabled) {
  background: var(--teal-deep);
  transform: translateY(-1px);
}

.primary-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.primary-button svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.primary-button.is-loading svg {
  animation: bob 0.9s ease-in-out infinite;
}

.form-error {
  min-height: 1.4em;
  margin: 10px 0 0;
  color: var(--danger);
  font-size: 0.82rem;
  text-align: right;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 26px 4px 44px;
  color: var(--ink-soft);
  font-size: 0.75rem;
}

footer p {
  margin: 0;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  50% { opacity: 0.45; }
}

@keyframes bob {
  50% { transform: translateY(3px); }
}

@media (max-width: 900px) {
  .masthead {
    padding: 52px 0 50px;
  }

  .masthead-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .database-card {
    max-width: none;
  }

  .list-settings {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

@media (max-width: 620px) {
  .page-width {
    width: min(100% - 24px, 1180px);
  }

  .masthead {
    padding-top: 40px;
  }

  h1 {
    font-size: clamp(2.35rem, 13vw, 3.5rem);
  }

  .builder-panel {
    border-radius: 18px;
  }

  .list-settings,
  .country-section {
    padding: 26px 20px;
  }

  .country-toolbar,
  .country-heading-row,
  .build-bar,
  footer {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar-actions {
    justify-content: space-between;
  }

  .country-grid {
    grid-template-columns: 1fr;
    max-height: 430px;
  }

  .primary-button {
    width: 100%;
  }

  .form-error {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}