/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --amtrak-blue:   #1A3C6E;
  --amtrak-red:    #CE2127;
  --bg:            #FAFAF9;
  --surface:       #FFFFFF;
  --text-primary:  #1C1C1E;
  --text-secondary:#6E6E73;
  --border:        #E5E5EA;

  --stripe-active:  #1A3C6E;
  --stripe-matched: #22C55E;
  --stripe-checking:#F59E0B;

  --green-badge-bg:  #DCFCE7;
  --green-badge-txt: #15803D;
  --blue-badge-bg:   #DBEAFE;
  --blue-badge-txt:  #1D4ED8;
  --amber-badge-bg:  #FEF3C7;
  --amber-badge-txt: #B45309;

  --shadow-sm: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px rgba(0,0,0,.10), 0 2px 6px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 24px rgba(0,0,0,.12), 0 4px 10px rgba(0,0,0,.07);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
               Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  padding-bottom: 60px;
}

/* ── Top Nav ────────────────────────────────────────────────── */
.topnav {
  background: var(--amtrak-blue);
  padding: 0 24px;
  display: flex;
  align-items: center;
  height: 56px;
  box-shadow: 0 2px 8px rgba(0,0,0,.25);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topnav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.topnav-logo {
  width: 32px;
  height: 32px;
  background: var(--amtrak-red);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 14px;
  color: #fff;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}

.topnav-title {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.topnav-subtitle {
  color: rgba(255,255,255,.55);
  font-size: 12px;
  font-weight: 400;
}

/* ── Page Layout ────────────────────────────────────────────── */
.content {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px 16px 0;
}

/* ── Section Labels ─────────────────────────────────────────── */
.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 10px;
  margin-top: 28px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.section-label:first-child {
  margin-top: 0;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-count {
  background: var(--amtrak-blue);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 99px;
}

/* ── Form Card ──────────────────────────────────────────────── */
.form-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.form-header {
  background: linear-gradient(135deg, var(--amtrak-blue) 0%, #2455A4 100%);
  padding: 16px 22px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.form-header-icon {
  width: 32px;
  height: 32px;
  background: rgba(255,255,255,.15);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  color: #fff;
}

.form-header-text h2 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}

.form-header-text p {
  color: rgba(255,255,255,.6);
  font-size: 12px;
}

.form-body {
  padding: 22px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 14px;
}

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

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

.field label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.field input,
.field select {
  width: 100%;
  height: 42px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0 12px;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
  font-family: inherit;
}

.field input:focus,
.field select:focus {
  border-color: var(--amtrak-blue);
  box-shadow: 0 0 0 3px rgba(26,60,110,.12);
  background: #fff;
}

.station-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 10px;
  align-items: end;
  margin-bottom: 14px;
}

.station-input-wrapper {
  position: relative;
}

.station-swap {
  width: 36px;
  height: 42px;
  border: 1.5px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  color: var(--amtrak-blue);
  transition: background .15s, border-color .15s;
  margin-bottom: 0;
  flex-shrink: 0;
  align-self: flex-end;
}

.station-swap:hover {
  background: var(--amtrak-blue);
  border-color: var(--amtrak-blue);
  color: #fff;
}

.price-limit-row {
  margin-bottom: 20px;
}

.price-input-wrap {
  position: relative;
}

.price-input-wrap .prefix {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 600;
  pointer-events: none;
}

.price-input-wrap input {
  padding-left: 24px;
}

.form-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.form-hint {
  font-size: 12px;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--amtrak-blue) 0%, #2455A4 100%);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 11px 24px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: opacity .15s, transform .1s;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(26,60,110,.35);
}

.btn-primary:hover { opacity: .9; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: .6; cursor: default; transform: none; }

/* ── Station Dropdown ─────────────────────────────────────── */
.station-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  max-height: 200px;
  overflow-y: auto;
  z-index: 50;
  box-shadow: var(--shadow-md);
}

.station-option {
  padding: 10px 12px;
  cursor: pointer;
  font-size: 13px;
  color: var(--text-primary);
  transition: background .1s;
}

.station-option:hover {
  background: var(--blue-badge-bg);
}

/* ── Alert Cards ────────────────────────────────────────────── */
.alerts-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.alert-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  display: flex;
  overflow: hidden;
  transition: box-shadow .2s, transform .2s;
  border: 1px solid var(--border);
}

.alert-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.alert-stripe {
  width: 5px;
  flex-shrink: 0;
}

.alert-stripe.active   { background: var(--stripe-active); }
.alert-stripe.matched  { background: var(--stripe-matched); }
.alert-stripe.checking { background: var(--stripe-checking); }

.alert-body {
  flex: 1;
  padding: 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

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

.route-display {
  display: flex;
  align-items: center;
  gap: 10px;
}

.station-code {
  font-size: 26px;
  font-weight: 900;
  color: var(--amtrak-blue);
  letter-spacing: -1px;
  line-height: 1;
}

.route-line {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  flex: 1;
  min-width: 60px;
}

.route-line-track {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--amtrak-blue) 0%, #22C55E 100%);
  border-radius: 99px;
  position: relative;
}

.route-line-track::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  border-left: 7px solid #22C55E;
}

.route-name {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.alert-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.btn-icon {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  border: 1.5px solid var(--border);
  background: var(--bg);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
}

.btn-icon:hover { background: var(--amtrak-blue); color: #fff; border-color: var(--amtrak-blue); }
.btn-icon.danger:hover { background: #EF4444; border-color: #EF4444; color: #fff; }

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

.status-badge.active   { background: var(--blue-badge-bg);  color: var(--blue-badge-txt); }
.status-badge.matched  { background: var(--green-badge-bg); color: var(--green-badge-txt); }
.status-badge.checking { background: var(--amber-badge-bg); color: var(--amber-badge-txt); }

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.status-badge.active   .status-dot { background: var(--blue-badge-txt); }
.status-badge.matched  .status-dot { background: var(--green-badge-txt); }
.status-badge.checking .status-dot { background: var(--amber-badge-txt); }

.alert-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.meta-item {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
}

.meta-item strong {
  color: var(--text-primary);
  font-weight: 600;
}

.meta-icon {
  font-size: 12px;
  opacity: .7;
}

.alert-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 10px;
  border-top: 1px dashed var(--border);
}

.price-limit-display {
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.price-limit-display .label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}

.price-limit-display .value {
  font-size: 20px;
  font-weight: 800;
  color: var(--amtrak-blue);
}

.price-limit-display .currency {
  font-size: 13px;
  font-weight: 700;
  color: var(--amtrak-blue);
}

.alert-progress {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
}

.last-checked {
  font-size: 11px;
  color: var(--text-secondary);
}

.matches-found {
  font-size: 11px;
  font-weight: 700;
  color: var(--green-badge-txt);
}

/* ── Matched Fares (Ticket Cards) ───────────────────────────── */
.fares-grid {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.ticket-card {
  background: var(--surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  border: 1px solid var(--border);
  display: flex;
  transition: box-shadow .2s, transform .2s;
}

.ticket-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.ticket-stripe {
  width: 5px;
  flex-shrink: 0;
  background: var(--stripe-matched);
}

.ticket-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.ticket-top {
  display: flex;
  align-items: center;
  padding: 14px 18px;
  gap: 16px;
}

.ticket-route {
  flex: 1;
}

.ticket-stations {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
}

.ticket-station-code {
  font-size: 22px;
  font-weight: 900;
  color: var(--amtrak-blue);
  letter-spacing: -0.5px;
  line-height: 1;
}

.ticket-track {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.ticket-track-line {
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--amtrak-blue), #22C55E);
  border-radius: 99px;
  position: relative;
}

.ticket-track-line::after {
  content: '';
  position: absolute;
  right: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 0; height: 0;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  border-left: 6px solid #22C55E;
}

.ticket-track-label {
  font-size: 9px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.ticket-times {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-secondary);
}

.ticket-times strong {
  color: var(--text-primary);
  font-weight: 700;
}

.ticket-price-block {
  text-align: right;
  flex-shrink: 0;
}

.ticket-price {
  font-size: 28px;
  font-weight: 900;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1;
}

.ticket-price .cents {
  font-size: 16px;
  font-weight: 700;
  vertical-align: super;
  letter-spacing: 0;
}

.ticket-price .dollar {
  font-size: 16px;
  font-weight: 700;
  vertical-align: super;
  letter-spacing: 0;
}

.save-badge {
  display: inline-block;
  background: var(--green-badge-bg);
  color: var(--green-badge-txt);
  font-size: 11px;
  font-weight: 800;
  padding: 3px 9px;
  border-radius: 99px;
  margin-top: 4px;
  letter-spacing: 0.02em;
}

/* Dotted tear separator */
.ticket-separator {
  display: flex;
  align-items: center;
  padding: 0 14px;
  position: relative;
}

.ticket-separator::before,
.ticket-separator::after {
  content: '';
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  flex-shrink: 0;
  margin: 0 -7px;
  position: relative;
  z-index: 1;
}

.ticket-separator-line {
  flex: 1;
  border-top: 2px dashed var(--border);
  margin: 0 4px;
}

.ticket-bottom {
  padding: 10px 18px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}

.ticket-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.ticket-meta-item {
  display: flex;
  flex-direction: column;
}

.ticket-meta-label {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-secondary);
}

.ticket-meta-value {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.ticket-meta-value.green { color: var(--green-badge-txt); }

/* ── No-data message ──────────────────────────────────────── */
.no-alerts {
  color: var(--text-secondary);
  font-size: 13px;
  padding: 16px 0;
}

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 600px) {
  .form-row      { grid-template-columns: 1fr; }
  .form-row.three { grid-template-columns: 1fr 1fr; }
  .station-row   { grid-template-columns: 1fr; }
  .station-swap  { justify-self: center; }
  .ticket-top    { flex-direction: column; }
}