:root {
  --bg: #f3f7f6;
  --surface: #ffffff;
  --ink: #12303a;
  --muted: #55747d;
  --brand: #0d8f8a;
  --brand-dark: #0a6d69;
  --danger: #b43a3a;
  --line: #d6e2e4;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Work Sans", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at 10% 0%, #e2f3ee 0%, var(--bg) 45%), var(--bg);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: linear-gradient(90deg, #083344, #0d8f8a);
  color: #fff;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1rem;
}

.topbar h1 {
  margin: 0;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
}

.topbar nav {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.topbar a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  opacity: 0.95;
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1rem;
  margin-bottom: 1rem;
  box-shadow: 0 8px 24px rgba(8, 51, 68, 0.06);
  animation: fade-in 0.35s ease;
}

.narrow {
  max-width: 430px;
  margin: 2rem auto;
}

.stack {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
}

.mobile-inline {
  gap: 0.6rem;
}

.grid.two {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.grow {
  flex: 1;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 600;
}

input {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem;
  font-size: 1rem;
}

.btn {
  border: none;
  border-radius: 10px;
  background: var(--brand);
  color: #fff;
  padding: 0.65rem 0.95rem;
  font-weight: 700;
  cursor: pointer;
}

.btn:hover {
  background: var(--brand-dark);
}

.btn.ghost {
  border: 1px solid var(--brand);
  background: transparent;
  color: var(--brand-dark);
}

.btn.danger {
  background: var(--danger);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
}

.manual-log-row input {
  max-width: 220px;
}

.trip-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.trip-list li {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.65rem;
  display: flex;
  justify-content: space-between;
  gap: 0.8rem;
  align-items: center;
}

.trip-list strong,
.trip-list small {
  display: block;
}

small,
.muted {
  color: var(--muted);
}

.flash-wrap {
  margin-bottom: 1rem;
}

.flash {
  border-radius: 10px;
  padding: 0.7rem;
  margin-bottom: 0.5rem;
}

.flash-success {
  background: #d8f6eb;
}

.flash-error {
  background: #f9dbdb;
}

.map {
  height: 320px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--line);
}

.map.large {
  height: 420px;
}

.replay-controls {
  margin-top: 0.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

#replaySlider {
  flex: 1;
  min-width: 160px;
}

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (min-width: 760px) {
  .grid.two {
    grid-template-columns: 1fr 1fr;
  }

  .mobile-inline {
    flex-direction: row;
    align-items: end;
  }
}