:root {
  --tg-theme-bg-color: #ffffff;
  --tg-theme-text-color: #1a202c;
  --tg-theme-hint-color: #718096;
  --tg-theme-link-color: #2b6cb0;
  --tg-theme-button-color: #2b6cb0;
  --tg-theme-button-text-color: #ffffff;
  --tg-theme-secondary-bg-color: #edf2f7;
  --card-cancelled: #a0aec0;
  --card-changed: #c05621;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
}

.app-header {
  padding: 16px;
  border-bottom: 1px solid var(--tg-theme-secondary-bg-color);
}

.app-title {
  font-size: 20px;
  font-weight: 700;
}

.app-subtitle {
  font-size: 14px;
  color: var(--tg-theme-hint-color);
  margin-top: 2px;
}

.tabs {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  background: var(--tg-theme-secondary-bg-color);
}

.tab-btn {
  flex: 1;
  padding: 10px 8px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--tg-theme-text-color);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.tab-btn.active {
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
}

.content {
  padding: 12px 16px 32px;
}

.state-message {
  text-align: center;
  color: var(--tg-theme-hint-color);
  padding: 40px 16px;
}

.day-card {
  margin-bottom: 16px;
}

.day-title {
  font-weight: 700;
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--tg-theme-hint-color);
}

.occ-row {
  display: flex;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--tg-theme-secondary-bg-color);
  margin-bottom: 6px;
  cursor: pointer;
}

.occ-time {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  min-width: 90px;
}

.occ-main {
  flex: 1;
}

.occ-subject {
  font-weight: 600;
}

.occ-room {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
}

.occ-status {
  font-size: 12px;
  font-weight: 700;
  margin-left: 6px;
}

.occ-row.status-cancelled .occ-subject {
  text-decoration: line-through;
  color: var(--card-cancelled);
}

.occ-row.status-cancelled .occ-status {
  color: var(--card-cancelled);
}

.occ-row.status-moved .occ-subject,
.occ-row.status-replaced .occ-subject {
  color: var(--card-changed);
}

.occ-row.status-moved .occ-status,
.occ-row.status-replaced .occ-status {
  color: var(--card-changed);
}

.subject-item {
  padding: 12px;
  border-radius: 12px;
  background: var(--tg-theme-secondary-bg-color);
  margin-bottom: 6px;
  cursor: pointer;
  font-weight: 600;
}

.search-input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--tg-theme-hint-color);
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  margin-bottom: 12px;
  font-size: 14px;
}

.week-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.week-nav button {
  border: none;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: flex-end;
  z-index: 10;
}

.modal-backdrop.hidden {
  display: none;
}

.modal {
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  border-radius: 16px 16px 0 0;
  padding: 20px 16px;
  position: relative;
}

.modal-close {
  position: absolute;
  top: 10px;
  right: 14px;
  border: none;
  background: transparent;
  font-size: 18px;
  color: var(--tg-theme-hint-color);
  cursor: pointer;
}

.field-row {
  margin-bottom: 10px;
}

.field-title {
  font-size: 12px;
  color: var(--tg-theme-hint-color);
}

.field-value {
  font-size: 15px;
}

.field-value a {
  color: var(--tg-theme-link-color);
}

/* --- Admin ---------------------------------------------------------------------- */

.admin-subnav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.admin-subnav-btn {
  padding: 8px 12px;
  border: none;
  border-radius: 10px;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.admin-subnav-btn.active {
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
}

.admin-card {
  padding: 12px;
  border-radius: 12px;
  background: var(--tg-theme-secondary-bg-color);
  margin-bottom: 10px;
}

.admin-card-title {
  font-weight: 700;
  margin-bottom: 4px;
}

.admin-card-line {
  font-size: 13px;
  color: var(--tg-theme-hint-color);
  margin-bottom: 2px;
}

.admin-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.btn {
  padding: 8px 14px;
  border: none;
  border-radius: 10px;
  background: var(--tg-theme-secondary-bg-color);
  color: var(--tg-theme-text-color);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.4;
  cursor: default;
}

.btn-primary {
  background: var(--tg-theme-button-color);
  color: var(--tg-theme-button-text-color);
}

.btn-danger {
  background: #e53e3e;
  color: #ffffff;
}

.form-field {
  margin-bottom: 12px;
}

.form-field label {
  display: block;
  font-size: 12px;
  color: var(--tg-theme-hint-color);
  margin-bottom: 4px;
}

.form-field input[type="text"],
.form-field input[type="number"],
.form-field input[type="date"],
.form-field input[type="time"],
.form-field input[type="file"],
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--tg-theme-hint-color);
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  font-size: 14px;
  font-family: inherit;
}

.form-field-inline {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.form-field-inline input,
.form-field-inline select {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--tg-theme-hint-color);
  background: var(--tg-theme-bg-color);
  color: var(--tg-theme-text-color);
  font-size: 14px;
}

.admin-occ {
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--tg-theme-secondary-bg-color);
  margin-bottom: 8px;
}

.occ-row-header {
  font-weight: 600;
  margin-bottom: 6px;
}