:root {
  --color-bg: #0a1930;
  --color-bg-alt: #0f2347;
  --color-surface: #14294f;
  --color-border: #234070;
  --color-text: #eaf1ff;
  --color-text-muted: #9db3d9;
  --color-primary: #3b82f6;
  --color-primary-hover: #5b9dfb;
  --color-accent: #60a5fa;
  --radius: 14px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Hub page */
.hub {
  flex: 1;
  width: 100%;
  max-width: 480px;
  margin: 0 auto;
  padding: 64px 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hub-logo {
  font-weight: 800;
  font-size: 1.6rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: 40px;
}

.hub-logo span {
  color: var(--color-accent);
}

.hub-bullets {
  list-style: none;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hub-bullet {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

a.hub-bullet:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
  background: var(--color-bg-alt);
}

.hub-bullet-empty {
  color: var(--color-text-muted);
  opacity: 0.5;
  cursor: default;
}

.bullet-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  border-radius: 999px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
}

.hub-bullet-empty .bullet-num {
  background: var(--color-border);
  color: var(--color-text-muted);
}

.bullet-label {
  font-weight: 600;
  font-size: 1.05rem;
}

.hub-page-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.hub-page-subtitle {
  color: var(--color-text-muted);
  max-width: 420px;
  margin-bottom: 32px;
}

.hub-back {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  margin-top: 32px;
}

.hub-back:hover {
  text-decoration: underline;
}

.hub-wide {
  max-width: 560px;
}

/* Flight search form */
.flight-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 16px;
  text-align: left;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px;
  margin-bottom: 24px;
}

.flight-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.form-field label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.form-field input,
.form-field select {
  width: 100%;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 12px;
  color: var(--color-text);
  font-family: inherit;
  font-size: 16px;
  text-transform: uppercase;
}

.form-field select {
  text-transform: none;
}

.form-field input:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--color-primary);
}

.flight-form-error {
  display: none;
  color: #ff6b6b;
  font-size: 0.85rem;
}

/* News config form */
.news-fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.news-fieldset legend {
  padding: 0 8px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.news-checkbox-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 10px;
}

.news-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  cursor: pointer;
}

.news-checkbox input {
  accent-color: var(--color-primary);
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.keyword-input-row {
  display: flex;
  gap: 10px;
}

.keyword-input-row input {
  flex: 1;
  min-width: 0;
}

.keyword-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.keyword-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.85rem;
}

.keyword-remove {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0;
}

.keyword-remove:hover {
  color: #ff6b6b;
}

.keyword-count {
  display: block;
  margin-top: 8px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.news-saved-msg {
  display: none;
  color: var(--color-accent);
  font-size: 0.9rem;
  text-align: center;
}

/* News feed */
.news-feed {
  width: 100%;
  text-align: left;
  margin-bottom: 24px;
}

.news-feed-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.news-feed-title {
  font-weight: 600;
}

.news-feed-updated {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.news-feed-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.news-feed-empty {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  padding: 16px 0;
}

.news-feed-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--color-text);
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.news-feed-item:hover {
  border-color: var(--color-primary);
  transform: translateY(-1px);
}

.news-feed-item-source {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.news-feed-item-title {
  font-size: 0.95rem;
  font-weight: 600;
}

.news-feed-item-time {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.flight-results {
  width: 100%;
  text-align: left;
}

.flight-results-title {
  font-weight: 600;
  margin-bottom: 16px;
}

.flight-results-group {
  margin-bottom: 20px;
}

.flight-results-group-label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.flight-results-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.flight-result-link {
  padding: 10px 18px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.flight-result-link:hover {
  transform: translateY(-2px);
  border-color: var(--color-primary);
}

.hub-footer {
  text-align: center;
  padding: 24px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* Password gate */
#password-gate {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
}

.password-gate-box {
  width: 100%;
  max-width: 360px;
  padding: 40px 32px;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
}

.password-gate-logo {
  display: inline-block;
  font-weight: 800;
  font-size: 1.4rem;
  color: var(--color-text);
  text-decoration: none;
  margin-bottom: 8px;
}

.password-gate-logo span {
  color: var(--color-accent);
}

.password-gate-title {
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

#password-gate-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

#password-gate-input {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--color-text);
  font-family: inherit;
  font-size: 1rem;
  text-align: center;
}

#password-gate-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.password-gate-error {
  display: none;
  color: #ff6b6b;
  font-size: 0.9rem;
  margin-top: 14px;
}

.password-gate-forgot {
  display: inline-block;
  margin-top: 18px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  text-decoration: underline;
  cursor: pointer;
}

.password-gate-forgot:hover {
  color: var(--color-text);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-primary-hover);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1rem;
}