*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: #1a1a1a;
  background: #f5f5f5;
}

.screen {
  display: none;
  min-height: 100vh;
  padding: 1.5rem;
}
.screen.active {
  display: block;
}

#screen-loading {
  display: none;
  align-items: center;
  justify-content: center;
}
#screen-loading.active {
  display: flex;
}

#screen-login,
#screen-error {
  max-width: 24rem;
  margin: 0 auto;
  padding-top: 3rem;
}
#screen-login h1,
#screen-error h1 {
  margin-top: 0;
}
.error {
  color: #c00;
  margin-top: 0.5rem;
}

#screen-login form,
#modal-edit form,
#modal-add form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}
#screen-login label,
#modal-edit label,
#modal-add label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
#screen-login input[type="password"],
#screen-login input[type="text"],
#modal-edit input,
#modal-add input,
#modal-edit select,
#modal-add select {
  padding: 0.5rem 0.75rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
}
#screen-login button,
#modal-edit button[type="submit"],
#modal-add button[type="submit"] {
  padding: 0.6rem 1rem;
  font-size: 1rem;
  background: #2563eb;
  color: #fff;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
#screen-login button:hover,
#modal-edit button[type="submit"]:hover,
#modal-add button[type="submit"]:hover {
  background: #1d4ed8;
}

/* App: calendar */
#screen-app {
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.calendar-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 1rem;
}
.calendar-nav button {
  padding: 0.5rem 1rem;
  font-size: 1.25rem;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 6px;
  cursor: pointer;
}
.calendar-nav button:hover {
  background: #eee;
}
.calendar-title {
  font-weight: 600;
  font-size: 1.25rem;
  text-transform: capitalize;
  min-width: 200px;
  text-align: center;
}
.calendar-month-total {
  font-size: 0.95rem;
  color: #059669;
  font-weight: 600;
  margin-left: 0.5rem;
}
.btn-logout {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.4rem 0.75rem;
  font-size: 0.9rem;
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 6px;
  cursor: pointer;
}
.btn-logout:hover {
  background: #fee;
  border-color: #c00;
}
#screen-app {
  position: relative;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
  margin-bottom: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  color: #666;
  text-align: center;
}
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 2px;
}

.calendar-day {
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 8px;
  padding: 0.5rem;
  min-height: 100px;
}
.calendar-day.empty {
  background: #fafafa;
  border-color: transparent;
}
.calendar-day.today {
  border-color: #2563eb;
  background: #eff6ff;
}
.day-number {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}
.day-total {
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}
.day-total-label {
  color: #666;
  font-weight: 500;
}
.day-hours {
  color: #059669;
  font-weight: 600;
}
.day-records {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.8rem;
}
.day-records li {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 0;
  border-bottom: 1px solid #f0f0f0;
}
.day-records li:last-child {
  border-bottom: none;
}
.record-type {
  font-weight: 700;
  min-width: 1.2em;
}
.record-entrada .record-type { color: #059669; }
.record-saída .record-type { color: #dc2626; }
.record-time {
  flex: 1;
}
.btn-edit,
.btn-delete {
  padding: 2px 6px;
  font-size: 0.85rem;
  background: transparent;
  border: none;
  cursor: pointer;
  border-radius: 4px;
  line-height: 1;
}
.btn-edit:hover {
  background: #e0e7ff;
}
.btn-delete:hover {
  background: #fee2e2;
  color: #dc2626;
}
.btn-add-point {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.35rem;
  font-size: 0.75rem;
  background: #f0f0f0;
  border: 1px dashed #ccc;
  border-radius: 4px;
  cursor: pointer;
}
.btn-add-point:hover {
  background: #e5e5e5;
}

/* Modals */
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal.active {
  display: flex;
}
.modal-content {
  background: #fff;
  border-radius: 12px;
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  position: relative;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
}
.modal-content h2 {
  margin: 0 0 1rem;
  font-size: 1.25rem;
}
.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  padding: 0.25rem;
  font-size: 1.5rem;
  line-height: 1;
  background: transparent;
  border: none;
  cursor: pointer;
  color: #666;
}
.modal-close:hover {
  color: #1a1a1a;
}

@media (max-width: 640px) {
  .calendar-day {
    min-height: 80px;
    padding: 0.35rem;
  }
  .day-records li {
    flex-wrap: wrap;
  }
  .btn-edit, .btn-delete {
    margin-left: auto;
  }
}