:root {
  color-scheme: light dark;
  font-family: "SF Pro Display", "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --app-vh: 100vh;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: #0f1419;
  color: #f5f7fa;
}

#app {
  max-width: 420px;
  margin: 0 auto;
  padding: 16px;
}

.app-header {
  text-align: center;
}

.tabs {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

.tab-button {
  flex: 1;
  padding: 10px;
  border-radius: 999px;
  border: none;
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
  cursor: pointer;
}

.tab-button.active {
  background: #4f46e5;
  color: white;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.day-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 16px 0;
}

.date-label {
  font-size: 1.25rem;
  font-weight: 600;
}

.weekday-label {
  opacity: 0.7;
}

.entries {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.entry-card {
  border-radius: 16px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.04);
}

.entry-card.entry-compact {
  padding: 10px 12px;
}

.entry-row {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.entry-time {
  font-size: 0.85rem;
  font-weight: 600;
  min-width: 70px;
  white-space: nowrap;
}

.entry-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.entry-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.entry-header .entry-title {
  font-size: 1rem;
  font-weight: 600;
}

.entry-header .badge {
  flex-shrink: 0;
}

.entry-details {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  opacity: 0.75;
}

.entry-details span {
  position: relative;
  white-space: nowrap;
}

.entry-details span:not(:last-child)::after {
  content: "•";
  margin-left: 8px;
  opacity: 0.6;
}

.entry-card .time {
  font-size: 0.9rem;
  opacity: 0.75;
}

.entry-card .title {
  font-size: 1.05rem;
  margin: 6px 0;
}

.entry-card .subtitle {
  font-size: 0.85rem;
  opacity: 0.75;
  margin-top: 4px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 0.75rem;
  margin-right: 8px;
}

.badge.lesson {
  background: rgba(79, 70, 229, 0.3);
  color: #a5b4fc;
}

.badge.extra {
  background: rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
}

.primary,
.secondary,
.danger {
  width: 100%;
  padding: 12px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  margin-top: 16px;
}

.primary {
  background: #4f46e5;
  color: white;
}

.secondary {
  background: rgba(255, 255, 255, 0.08);
  color: inherit;
}

.danger {
  background: rgba(239, 68, 68, 0.2);
  color: #fecaca;
}

.week-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

.week-card {
  padding: 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
}

.card {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
  margin-bottom: 16px;
}

.card.danger {
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fecaca;
}

label {
  display: block;
  margin-bottom: 12px;
  font-size: 0.9rem;
}

input,
select {
  width: 100%;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: inherit;
  margin-top: 4px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  display: none;
  z-index: 10;
}

.modal:not(.hidden) {
  display: block;
}

body.modal-open {
  overflow: hidden;
}

.modal-content {
  width: 100%;
  height: var(--app-vh);
  background: #0f1419;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.modal-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.modal-header button {
  border: none;
  background: transparent;
  font-size: 1.5rem;
  color: inherit;
  cursor: pointer;
}

.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: 0 16px 24px;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
}

.modal-content form {
  padding-bottom: 32px;
}

.modal-content form label:last-of-type {
  margin-bottom: 4px;
}

.modal-content form .time-picker {
  margin-top: 8px;
}
.time-picker {
  display: flex;
  gap: 16px;
  margin: 12px 0;
  flex-wrap: wrap;
}

.time-picker > div {
  flex: 1 1 160px;
  min-width: 0;
}

.scroll-picker {
  width: 100%;
  max-height: 140px;
  overflow-y: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 8px;
}

.scroll-picker button {
  width: 100%;
  padding: 10px;
  border: none;
  background: transparent;
  color: inherit;
  border-radius: 8px;
  cursor: pointer;
}

.scroll-picker button.active {
  background: rgba(79, 70, 229, 0.25);
}

.weekday-picker {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.weekday-picker button {
  padding: 10px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: inherit;
  cursor: pointer;
}

.weekday-picker button.active {
  background: rgba(79, 70, 229, 0.35);
  border-color: rgba(79, 70, 229, 0.8);
}

.week-row {
  display: flex;
  gap: 8px;
  font-size: 0.9rem;
  opacity: 0.85;
}

.empty {
  opacity: 0.6;
  margin: 8px 0;
}

@media (max-width: 480px) {
  .entry-row {
    gap: 8px;
  }

  .entry-time {
    min-width: 60px;
    font-size: 0.8rem;
  }

  .modal-header {
    padding: 12px 16px;
  }

  .modal-body {
    padding-bottom: 48px;
  }
}