body {
  background: #0f172a;
  color: #e5e7eb;
  font-family: system-ui;
  margin: 0;
  padding: 0;
}

.topbar {
  display: flex;
  justify-content: space-between;
  padding: 1rem;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 1rem;
}

.card {
  background: #020617;
  padding: 1rem;
  margin-bottom: 1.5rem;
  border-radius: 12px;
  width: 100%;
  box-sizing: border-box;
}

.row {
  display: grid;
  grid-template-columns: 80px 120px 60px 1fr;
  gap: 10px;
  align-items: center;
}

.bar {
  height: 20px;
  background: #1e293b;
  border-radius: 6px;
}

.fill {
  height: 100%;
  background: #22c55e;
  border-radius: 4px;
}

.calendar-wrapper {
  display: flex;
  align-items: center;
  margin-top: 1rem;
}

.calendar-scroll {
  overflow: hidden;
  max-width: 100%;
}

.calendar {
  display: grid;
  grid-auto-flow: column;
  grid-template-rows: repeat(7, 1fr);
  gap: 3px;
  width: max-content;
}

.week-calendar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.week-label {
  font-size: 14px;
  color: #94a3b8;
  min-width: 150px;
  text-align: center;
}

.week {
  display: grid;
  grid-template-columns: repeat(7, minmax(24px, 1fr));
  grid-template-rows: auto auto;
  gap: 6px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  width: 100%;
  margin-top: 8px;
}

.day-header {
  font-size: 10px;
  color: #64748b;
  text-align: center;
  margin-bottom: 4px;
}

.day {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  transition: opacity 0.2s;
}

.day:hover {
  opacity: 0.8;
}

.arrow {
  background: none;
  border: none;
  color: #94a3b8;
  font-size: 18px;
  cursor: pointer;
}

input[type="number"] {
  width: 56px;
  padding: 6px 8px;
  border: 1px solid #374151;
  border-radius: 6px;
  background: #1e293b;
  color: #e5e7eb;
  text-align: center;
  box-sizing: border-box;
  height: 32px;
}

button {
  padding: 6px 10px;
  border: none;
  border-radius: 6px;
  background: #22c55e;
  color: white;
  cursor: pointer;
  font-size: 14px;
  height: 32px;
}

button:hover {
  background: #16a34a;
}

/* Mobile / small screens adjustments */
@media (max-width: 600px) {
  main {
    max-width: none;
    margin: 0;
    padding: 0.75rem;
  }

  .card {
    margin: 0.5rem 0;
    padding: 1rem;
    border-radius: 8px;
  }

  body {
    font-size: 18px;
  }

  h1 {
    font-size: 1.4rem;
  }

  h2 {
    font-size: 1.1rem;
  }

  .row {
    grid-template-columns: 70px 100px 48px 3fr;
    gap: 8px;
  }

  input[type="number"] {
    width: 48px;
    padding: 6px;
    font-size: 14px;
    height: 28px;
  }

  button {
    padding: 6px 10px;
    font-size: 14px;
    border-radius: 6px;
    height: 28px;
  }

  .week-label {
    font-size: 15px;
    min-width: 120px;
  }

  .day {
    width: 32px;
    height: 32px;
    border-radius: 6px;
  }

  /* Keep arrows on first line, move week grid to second line */
  .week-calendar .arrow {
    order: 1;
    flex: 0 0 auto;
  }

  .week-calendar .week-label {
    order: 1;
    flex: 1 1 auto;
  }

  .week-calendar .week {
    order: 2;
    width: 100%;
    margin-top: 8px;
  }
}

/* Desktop: keep week/calendar on single line */
@media (min-width: 601px) {
  .week-calendar {
    flex-wrap: nowrap;
    align-items: center;
  }

  .week-calendar .arrow {
    order: 0;
    flex: 0 0 auto;
  }

  .week-calendar .week-label {
    order: 0;
    flex: 0 0 auto;
    min-width: 160px;
    text-align: left;
    margin-right: 12px;
  }

  .week-calendar .week {
    order: 0;
    width: auto;
    margin-top: 0;
    display: grid;
    grid-template-columns: repeat(7, minmax(24px, 1fr));
    gap: 6px;
    overflow: visible;
  }
}