:root {
  color-scheme: light;
  --ink: #1d252c;
  --muted: #66717c;
  --line: #dfe5e9;
  --panel: #ffffff;
  --paper: #f5f7f4;
  --accent: #176b5b;
  --accent-dark: #0f4c41;
  --amber: #c98321;
  --blue: #396fa8;
  --rose: #b75563;
  --shadow: 0 16px 40px rgba(28, 39, 49, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body[data-role="student"] .nav-tabs [data-view="students"],
body[data-role="student"] .nav-tabs [data-view="subjects"],
body[data-role="guardian"] .nav-tabs [data-view="students"],
body[data-role="guardian"] .nav-tabs [data-view="subjects"] {
  display: none !important;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(23, 107, 91, 0.08), transparent 38%),
    linear-gradient(315deg, rgba(201, 131, 33, 0.12), transparent 34%),
    var(--paper);
  color: var(--ink);
}

body.locked .app-shell {
  display: none;
}

body:not(.locked) .login-screen {
  display: none;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.login-screen {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 24px;
}

.login-card {
  display: grid;
  gap: 16px;
  width: min(430px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
  padding: 24px;
}

.login-brand {
  margin-bottom: 6px;
}

.login-help {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  padding: 24px 18px;
  backdrop-filter: blur(14px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 56px;
}

.brand strong {
  display: block;
  font-size: 1.12rem;
}

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

.brand-mark {
  display: grid;
  grid-template-columns: repeat(3, 9px);
  gap: 5px;
  align-content: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f9fbf8;
}

.brand-mark span {
  width: 9px;
  height: 26px;
  border-radius: 8px;
}

.brand-mark span:nth-child(1) {
  background: var(--accent);
}

.brand-mark span:nth-child(2) {
  height: 18px;
  background: var(--amber);
}

.brand-mark span:nth-child(3) {
  height: 31px;
  background: var(--blue);
}

.nav-tabs {
  display: grid;
  gap: 8px;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  padding: 10px 12px;
  text-align: left;
}

.nav-tab:hover,
.nav-tab.active {
  background: #e9f1ed;
  color: var(--accent-dark);
}

.nav-unread-count {
  color: var(--amber);
  font-size: inherit;
  font-weight: 800;
}

.icon {
  display: grid;
  place-items: center;
  width: 24px;
  height: 24px;
  font-weight: 700;
}

.sidebar-footer {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.user-box {
  display: grid;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 10px;
}

.user-box span {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.user-box strong {
  overflow-wrap: anywhere;
}

.main {
  min-width: 0;
  padding: 28px;
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.topbar-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 2rem;
  line-height: 1.05;
}

h2 {
  font-size: 1rem;
}

.topbar p {
  margin-top: 8px;
  color: var(--muted);
}

.primary-button,
.secondary-button,
.ghost-button,
.text-button,
.icon-button {
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 9px 14px;
  font-weight: 700;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 20px rgba(23, 107, 91, 0.18);
}

.primary-button:hover {
  background: var(--accent-dark);
}

.secondary-button,
.ghost-button {
  border-color: var(--line);
  background: #fff;
  color: var(--ink);
}

.secondary-button.active-filter {
  border-color: rgba(201, 131, 33, 0.42);
  background: rgba(201, 131, 33, 0.12);
  color: #8a5614;
}

.ghost-button {
  width: 100%;
}

.ghost-button.danger {
  color: #9f2436;
}

.text-button {
  min-height: 32px;
  background: transparent;
  color: var(--accent);
  padding: 4px 0;
}

.icon-button {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  background: #f3f6f4;
  color: var(--ink);
  font-size: 1.35rem;
}

.mobile-menu-button,
.mobile-nav-close,
.mobile-nav-overlay {
  display: none;
}

.topbar-heading {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
}

.topbar-heading > div {
  min-width: 0;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

body[data-role="teacher"] .metric-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

body[data-role="teacher"] #monthLessonsMetric {
  order: 1;
}

body[data-role="teacher"] #lessonsMetric {
  order: 2;
}

body[data-role="teacher"] #hoursMetric {
  order: 4;
}

body[data-role="teacher"] #monthHoursMetric {
  order: 3;
}

body[data-role="teacher"] #studentsMetric {
  order: 5;
}

.metric,
.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
}

.metric {
  padding: 18px;
}

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

.metric strong {
  display: block;
  margin-top: 8px;
  font-size: 2rem;
}

.honorarium-header-panel {
  margin-bottom: 14px;
}

.honorarium-title-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.honorarium-rates-dialog {
  width: min(1240px, calc(100vw - 28px));
}

.honorarium-consult-dialog {
  width: min(1240px, calc(100vw - 28px));
}

.honorarium-copy-dialog {
  width: min(520px, calc(100vw - 28px));
}

.honorarium-consult-dialog h3 {
  margin: 4px 0 -6px;
  font-size: 1rem;
}

.honorarium-filters {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.honorarium-filters label {
  min-width: 150px;
}

.honorarium-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.honorarium-rates-table {
  min-width: 1000px;
}

.honorarium-rates-table th:first-child {
  min-width: 210px;
}

.honorarium-rates-table th:not(:first-child),
.honorarium-rates-table td:not(:first-child) {
  min-width: 125px;
}

.honorarium-rates-table tbody th {
  color: var(--ink);
  text-align: left;
}

.honorarium-rate-input {
  min-width: 100px;
  padding: 8px 9px;
  text-align: right;
}

.honorarium-rate-input:disabled {
  background: #f5f7f4;
  color: var(--muted);
}

.billing-header-panel {
  margin-bottom: 14px;
}

.billing-subnav {
  display: flex;
  gap: 18px;
  margin: 14px 0 16px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.billing-subnav .text-button {
  border-bottom: 2px solid transparent;
  padding: 2px 0 6px;
}

.billing-subnav .text-button.active {
  border-bottom-color: var(--accent);
  color: var(--accent-dark);
  font-weight: 700;
}

.billing-month-filter {
  display: grid;
  gap: 10px;
  margin: -4px 0 16px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 12px;
}

.billing-month-filter-controls,
.billing-month-options {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px 14px;
}

.billing-month-filter-title {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.billing-month-option {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--ink);
  font-size: 0.82rem;
  white-space: nowrap;
}

.billing-month-option input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--accent);
}

.billing-filters {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(170px, 240px) minmax(220px, 1fr);
  gap: 12px;
  align-items: end;
}

.billing-general-header {
  align-items: flex-end;
}

.billing-general-filters {
  display: grid;
  grid-template-columns: minmax(180px, 240px) minmax(130px, 160px) minmax(130px, 160px);
  gap: 10px;
  align-items: end;
}

.billing-general-filters label {
  display: grid;
  gap: 5px;
  min-width: 0;
}

.billing-general-filters label > span {
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
}

.billing-student-summary {
  display: grid;
  gap: 7px;
}

.billing-school-year-display {
  display: grid;
  gap: 7px;
}

.billing-school-year-display span {
  color: var(--muted);
  font-size: 0.82rem;
}

.billing-school-year-display strong {
  font-size: 1rem;
}

.billing-student-summary span {
  color: var(--muted);
  font-size: 0.82rem;
}

.billing-status {
  min-height: 20px;
  margin-top: 12px;
}

.billing-table,
.billing-monthly-table,
.billing-overview-table {
  width: 100%;
  min-width: 940px;
  border-collapse: collapse;
}

.billing-monthly-table {
  min-width: 640px;
}

.billing-table th,
.billing-table td,
.billing-monthly-table th,
.billing-monthly-table td,
.billing-overview-table th,
.billing-overview-table td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

.billing-table th,
.billing-monthly-table th,
.billing-overview-table th {
  background: #f5f7f4;
  color: var(--muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.billing-table td,
.billing-monthly-table td,
.billing-overview-table td {
  font-size: 0.8rem;
}

.billing-overview-table td,
.billing-overview-table .text-button {
  font-size: 0.76rem;
}

.billing-table .table-number,
.billing-monthly-table .table-number,
.billing-overview-table .table-number {
  text-align: right;
  vertical-align: middle;
  white-space: nowrap;
}

.billing-overview-table {
  min-width: 1480px;
}

.billing-overview-table th,
.billing-overview-table td {
  padding: 7px 8px;
}

.billing-overview-table th[colspan] {
  text-align: center;
}

.billing-overview-table .billing-amount-paid {
  color: var(--accent-dark);
  font-weight: 800;
}

.billing-overview-table .billing-amount-pending {
  color: #c26b14;
  font-weight: 800;
}

.billing-overview-table .billing-overview-student-name.is-overdue {
  color: #b42318;
  font-weight: 800;
}

.billing-payment-input {
  width: 64px;
  min-width: 64px;
  padding: 3px 4px;
  font-size: 0.72rem;
  text-align: right;
}

.billing-payment-cell {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.billing-payment-check {
  width: 17px;
  height: 17px;
  margin: 0;
  accent-color: var(--accent);
}

.billing-payment-input:disabled {
  background: #f1f5f2;
  color: var(--ink);
  opacity: 1;
}

.billing-line-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  white-space: nowrap;
}

.billing-line-actions .danger {
  color: #9f2436;
}

.billing-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.billing-validation {
  margin-top: 12px;
  color: var(--accent-dark);
  font-weight: 700;
}

.billing-line-dialog {
  width: min(720px, calc(100vw - 28px));
}

.billing-line-dialog .full-field {
  grid-column: 1 / -1;
}

.input-with-suffix {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.input-with-suffix input {
  border: 0;
  background: transparent;
}

.input-with-suffix span {
  padding-right: 12px;
  color: var(--muted);
  font-weight: 700;
}

.billing-line-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 12px 0;
  color: var(--muted);
}

.billing-line-preview strong {
  color: var(--ink);
}

.table-wrap {
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.honorarium-table {
  width: 100%;
  min-width: 930px;
  border-collapse: collapse;
}

.honorarium-table th,
.honorarium-table td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

.honorarium-table th {
  background: #f5f7f4;
  color: var(--muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.honorarium-table td {
  font-size: 0.84rem;
}

.honorarium-table .table-number {
  text-align: right;
  white-space: nowrap;
}

.table-empty {
  color: var(--muted);
  padding: 18px 0;
  text-align: center;
}

.metric-detail {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.78rem;
}

.dashboard-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(320px, 0.65fr);
  gap: 18px;
}

.panel {
  padding: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.panel-subheader {
  margin-top: 20px;
}

.timeline,
.entity-list,
.bars {
  display: grid;
  gap: 12px;
}

.compact-filters {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(160px, 220px) minmax(180px, 260px);
  gap: 12px;
  align-items: end;
}

.view-mode-switcher {
  display: flex;
  gap: 0;
}

.view-mode-switcher .secondary-button {
  border-radius: 0;
  margin-left: -1px;
}

.view-mode-switcher .secondary-button:first-child {
  border-radius: 8px 0 0 8px;
  margin-left: 0;
}

.view-mode-switcher .secondary-button:last-child {
  border-radius: 0 8px 8px 0;
}

.view-mode-switcher .secondary-button.active {
  position: relative;
  z-index: 1;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.registration-list-simple {
  gap: 4px;
}

.registration-simple-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.2fr) minmax(90px, 0.45fr) minmax(180px, 1.25fr) minmax(150px, 1fr) minmax(130px, 0.8fr) auto auto;
  align-items: center;
  gap: 10px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 6px 10px;
}

.registration-simple-name,
.registration-simple-meta {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.registration-simple-name {
  display: block;
  border: 0;
  background: transparent;
  color: var(--accent-dark);
  padding: 0;
  text-align: left;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.registration-simple-name:hover {
  text-decoration: underline;
}

.registration-simple-meta {
  color: var(--muted);
  font-size: 0.84rem;
}

.registration-simple-row .chip {
  min-height: 24px;
  padding: 3px 8px;
  font-size: 0.76rem;
  white-space: nowrap;
}

.registration-simple-action {
  justify-self: end;
  white-space: nowrap;
}

.registration-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 14px;
}

.registration-detail-status {
  margin-bottom: 14px;
}

.student-simple-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.25fr) minmax(70px, 0.45fr) minmax(120px, 0.8fr) minmax(180px, 1.2fr) minmax(150px, 1fr) minmax(180px, 1.2fr);
  align-items: center;
  gap: 10px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 6px 10px;
  min-width: 900px;
}

.student-list-simple {
  overflow-x: auto;
}

.student-simple-value {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.84rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.student-simple-name {
  display: block;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 0;
  text-align: left;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.student-simple-name:hover {
  text-decoration: underline;
}

.student-simple-email {
  color: var(--accent-dark);
}

.student-simple-email:hover {
  text-decoration: underline;
}

.request-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.records {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
}

.summary-card,
.entity-card,
.timeline-item,
.request-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.summary-card,
.request-card {
  display: grid;
  gap: 10px;
}

.request-card .record-top {
  align-items: stretch;
}

.request-summary-trigger {
  display: grid;
  flex: 1;
  gap: 3px;
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  text-align: left;
  font: inherit;
  cursor: pointer;
}

.request-summary-card {
  cursor: pointer;
}

.request-summary-trigger:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.request-view-modal {
  width: min(760px, calc(100vw - 28px));
}

.request-view-content {
  display: grid;
  gap: 16px;
}

.request-view-toolbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.request-view-thread {
  max-height: min(52vh, 520px);
  overflow-y: auto;
  padding: 2px;
}

.records .summary-card {
  grid-template-columns: minmax(130px, 0.7fr) minmax(180px, 1fr) minmax(180px, 1fr) minmax(220px, 2fr) auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
}

.records .summary-card .record-top {
  display: contents;
}

.records .summary-card .record-title,
.records .summary-card .record-meta,
.records .summary-card .chip-row,
.records .summary-card p {
  min-width: 0;
}

.records .summary-card .record-title {
  display: flex;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.records .summary-card .summary-subject {
  flex: 0 0 auto;
  font-weight: 800;
}

.records .summary-card .summary-students {
  min-width: 0;
  overflow: hidden;
  font-weight: 400;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.records .summary-card .chip-row {
  flex-wrap: nowrap;
  overflow: hidden;
}

.records .summary-card .chip {
  overflow: hidden;
  max-width: 100%;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.records .summary-card p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.records .summary-card .muted {
  display: none;
}

.record-top,
.entity-top,
.timeline-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.record-title,
.entity-name {
  font-weight: 800;
}

.student-view-link {
  display: block;
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 0;
  text-align: left;
}

.student-view-link:hover,
.student-view-link:focus-visible {
  text-decoration: underline;
}

.request-unread {
  color: var(--amber);
  font-weight: 800;
}

.record-meta,
.entity-meta,
.timeline-meta,
.message-meta,
.muted {
  color: var(--muted);
  font-size: 0.9rem;
}

.status-control {
  min-width: 160px;
}

.status-control select {
  padding: 7px 9px;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  border-radius: 999px;
  background: #eef4f1;
  color: var(--accent-dark);
  padding: 4px 10px;
  font-size: 0.84rem;
  font-weight: 700;
}

.chip.amber {
  background: #fff2df;
  color: #84520e;
}

.chip.blue {
  background: #eaf2fb;
  color: #28557f;
}

.chip.rose {
  background: #fff0f2;
  color: #8d2636;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(210px, 1fr) repeat(3, minmax(145px, 210px));
  gap: 12px;
  margin-bottom: 16px;
}

.summary-toolbar {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  margin-bottom: 16px;
}

.summary-toolbar .toolbar {
  flex: 1;
  margin-bottom: 0;
}

.summary-simple-header,
.summary-simple-row {
  display: grid;
  grid-template-columns: minmax(150px, 0.9fr) minmax(145px, 0.9fr) minmax(180px, 1.2fr) minmax(170px, 1fr) minmax(130px, 0.8fr) minmax(260px, 2fr);
  align-items: center;
  gap: 10px;
  min-width: 900px;
}

.summary-simple-header {
  padding: 0 10px 4px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.summary-simple-row {
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 6px 10px;
}

.summary-list-simple {
  overflow-x: auto;
}

.summary-simple-cell {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 0.84rem;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.summary-simple-title {
  border: 0;
  background: transparent;
  color: var(--ink);
  padding: 0;
  text-align: left;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}

.summary-simple-title:hover,
.summary-simple-title:focus-visible {
  color: var(--accent-dark);
  text-decoration: underline;
}

.summary-simple-text {
  color: var(--ink);
}

.calendar-panel {
  min-width: 0;
}

.calendar-panel .panel-header {
  align-items: flex-end;
}

.calendar-panel .panel-header .muted {
  margin-top: 5px;
}

.calendar-mode-switcher {
  display: flex;
  gap: 0;
}

.calendar-mode-switcher .secondary-button {
  border-radius: 0;
  margin-left: -1px;
}

.calendar-mode-switcher .secondary-button:first-child {
  border-radius: 8px 0 0 8px;
  margin-left: 0;
}

.calendar-mode-switcher .secondary-button:last-child {
  border-radius: 0 8px 8px 0;
}

.calendar-mode-switcher .secondary-button.active {
  position: relative;
  z-index: 1;
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.calendar-status {
  min-height: 22px;
  margin: -4px 0 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(130px, 1fr));
  gap: 8px;
  min-width: 0;
  overflow-x: auto;
}

.calendar-day {
  min-height: 360px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcfb;
  overflow: hidden;
}

.calendar-month-grid .calendar-day {
  min-height: 155px;
}

.calendar-month-day.outside-month {
  background: #f5f7f5;
  opacity: 0.62;
}

.calendar-month-day.today {
  border-color: var(--accent);
}

.calendar-month-grid .calendar-event {
  padding: 6px;
}

.calendar-month-grid .calendar-event-detail {
  display: none;
}

.calendar-day-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid var(--line);
  background: #f1f6f3;
  padding: 10px;
  color: var(--accent-dark);
  font-size: 0.82rem;
  text-transform: capitalize;
}

.calendar-day-header strong {
  white-space: nowrap;
}

.calendar-events {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 8px;
}

.calendar-event {
  display: grid;
  gap: 4px;
  border-left: 3px solid var(--accent);
  border-radius: 4px;
  background: #eaf3ef;
  padding: 8px;
  overflow-wrap: anywhere;
}

.calendar-event strong {
  font-size: 0.86rem;
  line-height: 1.25;
}

.calendar-event-title {
  border: 0;
  background: transparent;
  padding: 0;
  color: var(--ink);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 800;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.calendar-event-title:hover,
.calendar-event-title:focus-visible {
  color: var(--accent-dark);
  text-decoration: underline;
}

.calendar-event-time {
  color: var(--accent-dark);
  font-size: 0.78rem;
  font-weight: 800;
}

.calendar-event-type {
  color: var(--accent-dark);
  font-size: 0.75rem;
  font-weight: 800;
}

.calendar-event-teacher {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.calendar-tables {
  display: grid;
  gap: 22px;
}

.calendar-source-table {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.calendar-source-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--line);
  padding: 0 0 8px;
}

.calendar-source-heading h3 {
  margin: 0;
  color: var(--ink);
  font-size: 1.05rem;
}

.calendar-source-number {
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
}

.calendar-event-detail {
  color: var(--muted);
  font-size: 0.76rem;
  line-height: 1.3;
}

.calendar-empty {
  padding: 8px 4px;
  color: var(--muted);
  font-size: 0.8rem;
  text-align: center;
}

label {
  display: grid;
  gap: 7px;
}

[data-profile-for] {
  display: none;
}

body[data-role="teacher"] [data-profile-for~="teacher"],
body[data-role="student"] [data-profile-for~="student"],
body[data-role="guardian"] [data-profile-for~="guardian"] {
  display: grid;
}

label span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

label small {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.3;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 11px;
}

textarea {
  resize: vertical;
}

.split-layout {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.profile-panel {
  max-width: 760px;
}

.trash-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.trash-grid h2 {
  margin-bottom: 12px;
}

.form-panel {
  display: grid;
  gap: 14px;
}

.communication-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(300px, 0.55fr);
  gap: 18px;
  align-items: start;
}

.communication-compose,
#communicationSettingsForm {
  display: grid;
  gap: 16px;
}

.communication-settings-panel {
  align-self: start;
}

.communication-groups {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.communication-groups legend {
  padding: 0 6px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.communication-groups label,
.communication-recipient-row {
  display: flex;
  align-items: center;
  gap: 9px;
}

.communication-groups label {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  cursor: pointer;
}

.communication-groups input,
.communication-recipient-row input {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--accent);
}

.communication-recipient-controls {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.communication-recipient-controls label {
  flex: 1;
}

.communication-recipient-controls .text-button {
  min-height: 42px;
  white-space: nowrap;
}

.communication-recipient-list {
  max-height: 370px;
  overflow-y: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.communication-recipient-row {
  min-height: 52px;
  border-bottom: 1px solid var(--line);
  padding: 8px 11px;
  cursor: pointer;
}

.communication-recipient-row:last-child {
  border-bottom: 0;
}

.communication-recipient-row:hover {
  background: #f5f7f4;
}

.communication-recipient-identity {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.communication-recipient-identity strong,
.communication-recipient-identity small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.communication-recipient-identity strong {
  color: var(--ink);
  font-size: 0.88rem;
}

.communication-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
}

.communication-status.success,
.communication-sent-count {
  color: var(--accent-dark);
  font-weight: 700;
}

.communication-status.error,
.communication-failed-count {
  color: #8d2636;
  font-weight: 700;
}

.communication-history-panel {
  margin-top: 18px;
}

.communication-history-table {
  width: 100%;
  min-width: 820px;
  border-collapse: collapse;
}

.communication-history-table th,
.communication-history-table td {
  border-bottom: 1px solid var(--line);
  padding: 9px 10px;
  text-align: left;
  vertical-align: top;
}

.communication-history-table th {
  background: #f5f7f4;
  color: var(--muted);
  font-size: 0.78rem;
  white-space: nowrap;
}

.communication-history-table td {
  font-size: 0.82rem;
}

.communication-history-table .table-number {
  text-align: right;
  white-space: nowrap;
}

.teacher-calendar-fields {
  display: grid;
  grid-column: 1 / -1;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.teacher-calendar-fields > strong {
  color: var(--ink);
  font-size: 0.9rem;
}

.teacher-calendar-fields > small {
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.3;
}

.teacher-calendar-row {
  display: grid;
  grid-template-columns: minmax(130px, 0.7fr) minmax(0, 1.3fr);
  gap: 10px;
}

.teacher-calendar-row[hidden] {
  display: none;
}

.calendar-location {
  display: grid;
  align-content: center;
  gap: 7px;
  min-height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f7faf8;
  padding: 10px 11px;
}

.calendar-location span {
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 700;
}

.calendar-location strong {
  color: var(--ink);
}

.entity-card {
  display: grid;
  gap: 10px;
}

.inline-edit {
  display: grid;
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 12px;
}

.inline-edit[hidden] {
  display: none;
}

.entity-actions,
.record-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.request-filter-links {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2px;
  color: var(--muted);
}

.request-filter-links .text-button {
  color: var(--muted);
}

.request-filter-links .text-button.active {
  color: var(--accent);
  text-decoration: underline;
}

.small-button {
  min-height: 32px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 6px 10px;
  font-weight: 700;
}

.small-button.danger {
  color: #9f2436;
}

.detail-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.detail-list div {
  display: grid;
  gap: 4px;
}

.detail-list .wide {
  grid-column: 1 / -1;
}

.detail-list strong {
  color: var(--muted);
  font-size: 0.86rem;
}

.assignment-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 8px;
}

.associate-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.check-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 9px;
  color: var(--ink);
}

.check-pill input {
  width: auto;
}

.bar-row {
  display: grid;
  grid-template-columns: minmax(100px, 150px) 1fr 32px;
  align-items: center;
  gap: 10px;
}

.bar-track {
  height: 10px;
  border-radius: 999px;
  background: #edf1ef;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), var(--amber));
}

.chat-thread {
  display: grid;
  gap: 8px;
}

.message {
  display: grid;
  gap: 4px;
  max-width: 92%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8faf9;
  padding: 9px 10px;
}

.message.own {
  justify-self: end;
  background: #eef4f1;
  border-color: #cfe0da;
}

.message.system {
  justify-self: center;
  max-width: 100%;
  background: #fff8ec;
  border-color: #f0d7ad;
  text-align: center;
}

.message-text {
  line-height: 1.4;
}

.chat-reply {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.empty-state {
  display: grid;
  gap: 4px;
  place-items: center;
  min-height: 150px;
  border: 1px dashed #cbd5d9;
  border-radius: 8px;
  color: var(--muted);
  text-align: center;
}

.empty-state strong {
  color: var(--ink);
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 100;
  transform: translateY(14px);
  opacity: 0;
  pointer-events: none;
  border: 1px solid #bcd8ce;
  border-radius: 8px;
  background: #eef8f4;
  color: var(--accent-dark);
  box-shadow: var(--shadow);
  padding: 12px 14px;
  font-weight: 800;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.public-page {
  min-height: 100vh;
}

.registration-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 28px;
}

.registration-card {
  width: min(820px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: var(--shadow);
  padding: 28px;
}

.registration-form {
  display: grid;
  gap: 18px;
}

.registration-form h1,
.success-box h1 {
  margin: 0 0 8px;
}

.registration-form p,
.success-box p {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.registration-subjects {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.registration-subjects legend {
  padding: 0 6px;
  color: var(--muted);
  font-weight: 800;
}

.subject-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  margin-bottom: 14px;
}

.subject-option {
  display: flex;
  align-items: center;
  gap: 8px;
}

.subject-option input {
  width: auto;
  margin: 0;
}

.subject-option span {
  color: var(--ink);
  font-size: 0.95rem;
  font-weight: 500;
}

.registration-preference {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.registration-preference legend {
  padding: 0 6px;
  color: var(--muted);
  font-weight: 800;
}

.registration-preference p {
  margin: 0 0 12px;
}

.preference-options {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.preference-option {
  display: flex;
  align-items: center;
  gap: 8px;
}

.preference-option input {
  width: auto;
  margin: 0;
}

.registration-form label small {
  display: block;
  margin: -4px 0 2px;
  color: var(--muted);
  line-height: 1.4;
}

.success-box,
.error-box {
  border-radius: 8px;
  padding: 16px;
}

.success-box {
  border: 1px solid rgba(23, 107, 91, 0.25);
  background: rgba(23, 107, 91, 0.08);
}

.error-box {
  border: 1px solid rgba(183, 85, 99, 0.28);
  background: rgba(183, 85, 99, 0.1);
  color: #873341;
}

dialog {
  width: min(760px, calc(100vw - 28px));
  max-height: calc(100dvh - 28px);
  border: 0;
  border-radius: 8px;
  overflow-y: auto;
  padding: 0;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

dialog::backdrop {
  background: rgba(17, 24, 29, 0.42);
}

.modal {
  display: grid;
  gap: 16px;
  padding: 20px;
}

.modal-header,
.modal-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.modal-actions {
  justify-content: flex-end;
}

.modal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.modal-grid.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (max-width: 920px) {
  body.mobile-nav-open {
    overflow: hidden;
  }

  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 60;
    width: min(320px, calc(100vw - 48px));
    max-width: 100%;
    transform: translateX(-105%);
    overflow-x: hidden;
    overflow-y: auto;
    border-right: 1px solid var(--line);
    background: #fff;
    box-shadow: 18px 0 45px rgba(28, 39, 49, 0.18);
    padding: 18px;
    transition: transform 0.2s ease;
    overscroll-behavior: contain;
  }

  body.mobile-nav-open .sidebar {
    transform: translateX(0);
  }

  .sidebar .brand {
    width: 100%;
    min-width: 0;
  }

  .mobile-menu-button,
  .mobile-nav-close {
    display: grid;
    flex: 0 0 auto;
  }

  .mobile-nav-close {
    margin-left: auto;
  }

  .mobile-nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 50;
    display: block;
    border: 0;
    background: rgba(17, 24, 29, 0.44);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
  }

  body.mobile-nav-open .mobile-nav-overlay {
    opacity: 1;
    pointer-events: auto;
  }

  .nav-tabs {
    display: grid;
    width: 100%;
    min-width: 0;
    gap: 4px;
  }

  .nav-tab {
    min-height: 48px;
  }

  .sidebar-footer {
    grid-auto-flow: row;
    width: 100%;
    min-width: 0;
    margin: auto 0 0;
  }

  .user-box {
    display: grid;
  }

  .main {
    padding: 20px;
  }

  .metric-grid,
  .honorarium-metrics,
  .billing-metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-layout,
  .split-layout,
  .communication-layout,
  .request-list,
  .trash-grid,
  .toolbar,
  .compact-filters {
    grid-template-columns: 1fr;
  }

  .summary-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .summary-toolbar .view-mode-switcher {
    width: 100%;
  }

  body[data-role="teacher"] .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .records .summary-card {
    grid-template-columns: 1fr;
  }

  .registration-simple-row {
    grid-template-columns: minmax(150px, 1.2fr) minmax(80px, 0.45fr) minmax(140px, 1.2fr) minmax(130px, 1fr) minmax(110px, 0.8fr) auto auto;
  }

}

@media (max-width: 920px) {
  .billing-general-header {
    align-items: stretch;
    flex-direction: column;
  }

  .billing-general-filters {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .login-screen {
    padding: 12px;
  }

  .login-card {
    padding: 20px;
  }

  .main {
    padding: 14px;
  }

  .topbar,
  .panel-header,
  .record-top,
  .entity-top,
  .timeline-top,
  .chat-reply,
  .request-view-toolbar,
  .modal-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar {
    gap: 14px;
    margin-bottom: 16px;
  }

  .topbar-heading {
    align-items: flex-start;
  }

  h1 {
    font-size: 1.5rem;
    line-height: 1.15;
  }

  .topbar p {
    display: none;
  }

  .panel,
  .metric {
    padding: 14px;
  }

  .panel-header {
    margin-bottom: 14px;
  }

  .metric-grid,
  .honorarium-metrics,
  .billing-metrics,
  body[data-role="teacher"] .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
  }

  .metric strong {
    font-size: 1.65rem;
  }

  .chat-reply {
    display: flex;
  }

  .modal-grid,
  .modal-grid.two-columns {
    grid-template-columns: 1fr;
  }

  dialog,
  .request-view-modal,
  .honorarium-rates-dialog,
  .honorarium-copy-dialog,
  .honorarium-consult-dialog,
  .billing-line-dialog {
    width: calc(100vw - 16px);
    max-height: calc(100dvh - 16px);
  }

  .modal {
    gap: 14px;
    padding: 16px;
  }

  input,
  select,
  textarea,
  .primary-button,
  .secondary-button,
  .ghost-button,
  .icon-button {
    min-height: 44px;
  }

  .subject-options {
    grid-template-columns: 1fr;
  }

  .teacher-calendar-row {
    grid-template-columns: 1fr;
  }

  .honorarium-filters {
    align-items: stretch;
    flex-direction: column;
  }

  .billing-filters {
    grid-template-columns: 1fr;
  }

  .billing-general-header {
    align-items: stretch;
    flex-direction: column;
  }

  .billing-general-filters {
    grid-template-columns: 1fr;
  }

  .billing-payment-input {
    min-height: 32px;
  }

  .billing-payment-check {
    min-height: 16px;
  }

  .honorarium-filters label {
    min-width: 0;
  }

  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .topbar-actions {
    width: 100%;
  }

  .topbar-actions .icon-button {
    flex: 0 0 44px;
  }

  .topbar-actions .primary-button {
    width: auto;
    flex: 1 1 0;
    min-width: 0;
  }

  .calendar-panel .record-actions,
  .calendar-mode-switcher {
    width: 100%;
  }

  .calendar-panel .record-actions > .secondary-button,
  .calendar-mode-switcher .secondary-button,
  .calendar-panel .record-actions > .icon-button {
    width: auto;
  }

  .calendar-mode-switcher {
    justify-content: center;
  }

  .view-mode-switcher {
    width: 100%;
  }

  .view-mode-switcher .secondary-button {
    width: auto;
    flex: 1;
  }

  .registration-simple-row {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .registration-simple-row .registration-simple-subjects {
    grid-column: 1 / -1;
  }

  .registration-simple-action {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .student-list-simple {
    overflow-x: visible;
  }

  .student-simple-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-width: 0;
    gap: 8px 12px;
    padding: 12px;
  }

  .student-simple-name {
    grid-column: 1 / -1;
    min-height: 32px;
    font-size: 1rem;
  }

  .student-simple-value {
    overflow: visible;
    text-overflow: clip;
    white-space: normal;
    overflow-wrap: anywhere;
  }

  .communication-groups {
    grid-template-columns: 1fr;
  }

  .communication-recipient-controls {
    align-items: stretch;
    flex-direction: column;
  }

  .communication-recipient-controls .text-button {
    align-self: flex-start;
  }

  .detail-list {
    grid-template-columns: 1fr;
  }

  .detail-list .wide {
    grid-column: auto;
  }

  .record-actions {
    width: 100%;
  }

  .calendar-grid:not(.calendar-month-grid) {
    grid-template-columns: 1fr;
    overflow-x: visible;
  }

  .calendar-grid:not(.calendar-month-grid) .calendar-day {
    min-height: 0;
  }

  .toast {
    right: 12px;
    bottom: 12px;
    left: 12px;
    text-align: center;
  }

  .registration-shell {
    padding: 12px;
  }

  .registration-card {
    padding: 18px;
  }
}