:root {
  --bg: #0d1117;
  --panel: #161b22;
  --panel-2: #1c232d;
  --panel-3: #222b36;
  --panel-hi: #2a3440;
  --border: #2a323d;
  --border-2: #3a4553;
  --text: #e6edf3;
  --muted: #8b949e;
  --muted-2: #6b7581;
  --accent: #3fb950;
  --accent-fg: #0b1b10;
  --accent-dim: rgba(63, 185, 80, 0.14);
  --accent-border: rgba(63, 185, 80, 0.45);
  --warn: #d29922;
  --danger: #f85149;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* =========================================================
   TOP BAR
   ========================================================= */
.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  background: rgba(13, 17, 23, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(63, 185, 80, 0.6);
}
.top h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text);
}

.status { display: flex; align-items: center; gap: 12px; }
.updated {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.82rem;
}
#refresh {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--border);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}
#refresh:hover { background: var(--panel-3); color: var(--text); border-color: var(--border-2); }
.btn-ic { width: 16px; height: 16px; }

main {
  padding: 20px 20px 40px;
  max-width: 760px;
  margin: 0 auto;
}

/* =========================================================
   SELECTOR
   ========================================================= */
.selector {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px;
  margin-bottom: 22px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  column-gap: 14px;
  align-items: end;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.field-label {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  padding-left: 4px;
}

.select-wrap {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 36px 0 10px;
  min-height: 48px;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s;
}
.select-wrap:hover { border-color: var(--border-2); background: var(--panel-3); }
.select-wrap:focus-within {
  border-color: var(--accent-border);
  box-shadow: 0 0 0 2px var(--accent-dim);
}

.field-ic {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  pointer-events: none;
}

.select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background: transparent;
  border: 0;
  outline: 0;
  color: var(--text);
  font-family: var(--sans);
  font-size: 1rem;
  font-weight: 600;
  padding: 12px 0 12px 10px;
  cursor: pointer;
  flex: 1;
  min-width: 0;
}
.select option {
  background: var(--panel-2);
  color: var(--text);
}

.caret {
  position: absolute;
  right: 12px;
  top: 50%;
  width: 14px;
  height: 14px;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}

.swap {
  background: var(--panel-2);
  color: var(--muted);
  border: 1px solid var(--border);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  transition: transform 0.25s ease, background 0.12s, color 0.12s;
  margin-bottom: 2px;
}
.swap:hover {
  background: var(--panel-3);
  color: var(--text);
  transform: rotate(180deg);
}
.swap .btn-ic { width: 18px; height: 18px; }

@media (max-width: 620px) {
  .selector {
    grid-template-columns: 1fr;
    row-gap: 8px;
    align-items: stretch;
  }
  .swap {
    justify-self: center;
    transform: rotate(90deg);
    margin: 4px 0;
  }
  .swap:hover { transform: rotate(270deg); }
}

/* =========================================================
   RESULTS
   ========================================================= */
.connections {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.conn {
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 4px solid transparent;
  border-radius: 12px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  column-gap: 18px;
  align-items: start;
  overflow: hidden;
}

.conn.direct {
  border-left-color: var(--accent);
  background: linear-gradient(90deg, var(--accent-dim) 0%, var(--panel) 50%);
}
.conn.past { opacity: 0.42; }
.conn.soon .t-dep .t-val { color: var(--warn); }

/* Time column */
.col-time {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 86px;
  flex-shrink: 0;
}
.t-dep, .t-arr { display: flex; flex-direction: column; line-height: 1; }
.t-label {
  font-size: 0.66rem;
  color: var(--muted-2);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 3px;
  font-weight: 600;
}
.t-dep .t-val {
  font-family: var(--mono);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  letter-spacing: -0.02em;
}
.t-arr .t-val {
  font-family: var(--mono);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--muted);
  line-height: 1;
  letter-spacing: -0.02em;
}
.t-plat {
  display: inline-block;
  margin-top: 4px;
  font-size: 0.74rem;
  color: var(--warn);
  font-family: var(--mono);
  font-weight: 600;
}

/* Main column */
.col-main {
  min-width: 0;
  max-width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 16px;
  overflow: hidden;
}
.summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  font-size: 0.95rem;
}
.summary .dur {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--text);
  font-size: 1.02rem;
}
.summary .sep { color: var(--muted-2); }
.summary .changes {
  color: var(--muted);
  font-size: 0.88rem;
}
.summary .direct-tag {
  color: var(--accent);
  font-weight: 700;
  padding: 2px 9px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  border-radius: 4px;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.away {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.84rem;
  color: var(--muted);
  padding: 2px 9px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--panel-2);
}
.away.past { color: var(--danger); border-color: var(--danger); background: rgba(248, 81, 73, 0.08); opacity: 0.85; }

/* Route flow */
.route {
  display: flex;
  flex-wrap: wrap;
  gap: 5px 8px;
  align-items: center;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
  min-width: 0;
  max-width: 100%;
  overflow-wrap: anywhere;
  word-break: break-word;
}
.route .endpoint {
  color: var(--text);
  font-weight: 600;
}
.route .arrow { color: var(--muted-2); flex-shrink: 0; }
.route .seg {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  flex-wrap: wrap;
  max-width: 100%;
  min-width: 0;
}
.route .stn {
  overflow-wrap: anywhere;
  word-break: break-word;
  min-width: 0;
}
.route .ic {
  width: 15px;
  height: 15px;
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}
.route .code {
  font-family: var(--mono);
  color: var(--text);
  background: var(--panel-3);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 700;
  font-size: 0.78rem;
}
.route .seg-time {
  font-family: var(--mono);
  color: var(--text);
  font-weight: 600;
  font-size: 0.78rem;
}
.route .seg-plat {
  font-family: var(--mono);
  color: var(--warn);
  font-size: 0.74rem;
  font-weight: 600;
  background: rgba(210, 153, 34, 0.12);
  border: 1px solid rgba(210, 153, 34, 0.3);
  padding: 1px 5px;
  border-radius: 3px;
}
.route .seg-dur {
  color: var(--muted-2);
  font-family: var(--mono);
  font-size: 0.74rem;
}
.route .stn { color: var(--muted); }
.route .seg-train {
  padding: 2px 4px;
  background: rgba(255, 255, 255, 0.02);
  border-radius: 4px;
}
.muted { color: var(--muted); font-style: italic; }

.sentinel {
  height: 1px;
  width: 100%;
}

.state {
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
  padding: 22px 0;
  min-height: 1em;
}

.foot {
  text-align: center;
  color: var(--muted-2);
  font-size: 0.78rem;
  padding: 20px 0 30px;
}
.foot a { color: var(--muted-2); }

/* =========================================================
   MOBILE — tighten
   ========================================================= */
@media (max-width: 560px) {
  main { padding: 16px 12px 30px; }
  .top { padding: 12px 14px; }
  .selector { padding: 14px 12px; border-radius: 12px; }

  .conn {
    padding: 12px;
    column-gap: 12px;
    border-radius: 10px;
  }
  .col-time { min-width: 72px; }
  .t-dep .t-val { font-size: 1.5rem; }
  .t-arr .t-val { font-size: 1.15rem; }
  .t-label { font-size: 0.62rem; }

  .col-main { padding-top: 14px; gap: 8px; }
  .summary { font-size: 0.88rem; gap: 6px 10px; }
  .summary .dur { font-size: 0.95rem; }
  .away { margin-left: 0; font-size: 0.78rem; }

  .route {
    font-size: 0.8rem;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }
  .route > .arrow { display: none; }
  .route .endpoint {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--muted-2);
    font-weight: 700;
    padding: 2px 0;
  }
  .route .seg {
    width: 100%;
    flex-wrap: wrap;
    padding: 5px 8px;
    background: rgba(255, 255, 255, 0.025);
    border-radius: 5px;
    white-space: normal;
  }
  .route .seg .ic { margin-right: 2px; }
  .route .code { font-size: 0.74rem; padding: 1px 6px; }
  .route .stn {
    flex-basis: 100%;
    color: var(--muted);
    overflow-wrap: anywhere;
    word-break: break-word;
    line-height: 1.35;
  }
}