:root {
  --color-bg-primary: #0b1118;
  --color-bg-secondary: #121922;
  --color-bg-tertiary: #18212d;
  --color-bg-card: #131c27;
  --color-bg-hover: #1f2a36;
  --color-bg-active: #263242;
  --color-border: #2d3948;
  --color-border-light: #3a4a5e;
  --color-text-primary: #f4f8fc;
  --color-text-secondary: #c7d3e0;
  --color-text-tertiary: #92a1b2;
  --color-text-muted: #6f8092;

  --color-accent: #3291ff;
  --color-accent-hover: #58a6ff;
  --color-accent-light: #9bc8ff;
  --color-accent-muted: rgba(50, 145, 255, 0.18);

  --color-success: #3ecf74;
  --color-success-bg: rgba(62, 207, 116, 0.16);
  --color-warning: #f3b63f;
  --color-warning-bg: rgba(243, 182, 63, 0.16);
  --color-danger: #ff5b55;
  --color-danger-bg: rgba(255, 91, 85, 0.16);
  --color-danger-border: rgba(255, 91, 85, 0.44);
  --color-neutral: #8fa0b2;
  --color-neutral-bg: rgba(143, 160, 178, 0.16);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;

  --font-family: "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 22px;
  --font-size-2xl: 30px;

  --transition-fast: 160ms cubic-bezier(0.2, 0.65, 0.3, 1);
  --transition: 180ms cubic-bezier(0.2, 0.65, 0.3, 1);
  --sidebar-width: 240px;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  scrollbar-width: none;
}

body {
  font-family: var(--font-family);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.42;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1,
h2,
h3,
h4,
p {
  margin: 0;
}

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

::selection {
  background: var(--color-accent);
  color: #fff;
}

.app-shell {
  min-height: 100vh;
  visibility: hidden;
}

.app-shell.is-ready {
  visibility: visible;
}

.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.58);
  opacity: 0;
  visibility: hidden;
  z-index: 89;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.overlay.active {
  opacity: 1;
  visibility: visible;
}

.mobile-menu-toggle {
  position: fixed;
  top: 10px;
  left: 10px;
  width: 38px;
  height: 38px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
  cursor: pointer;
  z-index: 95;
  display: none;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
}

.mobile-menu-toggle:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-light);
  opacity: 0.96;
}

.sidebar {
  width: var(--sidebar-width);
  position: fixed;
  inset: 0 auto 0 0;
  border-right: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(17, 24, 34, 0.98), rgba(14, 21, 31, 0.98));
  display: flex;
  flex-direction: column;
  z-index: 90;
  transition: opacity 0.22s ease, visibility 0.22s ease;
}

.sidebar-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.sidebar-logo {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: center;
}

.sidebar-logo-image {
  display: block;
  width: auto;
  height: 34px;
  max-width: min(100%, 170px);
  object-fit: contain;
  object-position: left center;
}

.sidebar-close {
  width: 28px;
  height: 28px;
  display: none;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
}

.sidebar-close:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.sidebar-nav {
  flex: 1;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-item {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 9px;
  background: transparent;
  color: var(--color-text-secondary);
  text-align: left;
  cursor: pointer;
  padding: 9px 11px;
  font-size: var(--font-size-sm);
  font-weight: 560;
  display: flex;
  align-items: center;
  gap: 9px;
  transition: background var(--transition), color var(--transition), border-color var(--transition), opacity var(--transition);
}

.nav-item .material-icons-round {
  font-size: 18px;
}

.nav-icon {
  width: 18px;
  min-width: 18px;
  text-align: center;
}

.nav-item:hover {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
  border-color: var(--color-border);
  opacity: 0.98;
}

.nav-item.is-active {
  background: var(--color-accent-muted);
  border-color: rgba(50, 145, 255, 0.35);
  color: var(--color-accent-light);
}

.nav-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.sidebar-footer {
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.sidebar-settings-link {
  margin: 0;
  padding: 9px;
  border-radius: var(--radius-md);
  background: rgba(24, 33, 45, 0.75);
  border: 1px solid var(--color-border);
}

.sidebar-settings-link.is-active {
  background: rgba(36, 52, 72, 0.8);
  border-color: rgba(50, 145, 255, 0.44);
  color: var(--color-accent-light);
}

.sidebar-info-card {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px;
  border-radius: var(--radius-md);
  background: rgba(24, 33, 45, 0.75);
  border: 1px solid var(--color-border);
}

.sidebar-info-icon {
  width: 26px;
  height: 26px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-success-bg);
  color: var(--color-success);
}

.sidebar-info-icon .material-icons-round {
  font-size: 15px;
}

.sidebar-info-text {
  min-width: 0;
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.sidebar-info-title {
  font-size: var(--font-size-xs);
  font-weight: 620;
}

.sidebar-info-subtitle {
  color: var(--color-text-tertiary);
  font-size: 10px;
}

.workspace {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  width: calc(100% - var(--sidebar-width));
}

.main-content {
  min-height: 100vh;
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  background: transparent;
}

.tab-panel {
  display: none;
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}

.tab-panel.is-active {
  display: flex;
  animation: fadeIn 0.18s ease;
}

.tab-panel.is-empty .card-table {
  display: none;
}

.tab-panel.is-empty {
  min-height: calc(100vh - 120px);
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.view-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding-top: 8px;
  margin-bottom: 2px;
}

.view-header.centered {
  justify-content: center;
  text-align: center;
}

.view-header-compact {
  margin-bottom: 2px;
}

.view-header-content h1 {
  font-size: var(--font-size-2xl);
  letter-spacing: -0.025em;
  line-height: 1.1;
  font-weight: 770;
  margin-top: 2px;
}

.view-subtitle {
  color: var(--color-text-tertiary);
  font-size: 12px;
  margin-top: 6px;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.kpi-card {
  min-height: 72px;
  background: linear-gradient(180deg, rgba(20, 29, 41, 0.95), rgba(16, 24, 34, 0.95));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 9px 10px;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 9px;
  transition: border-color var(--transition), background var(--transition), opacity var(--transition);
  cursor: default;
}

.kpi-card.kpi-primary {
  grid-column: span 2;
  min-height: 98px;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  padding: 11px 12px;
  background: linear-gradient(135deg, rgba(27, 40, 57, 0.98) 0%, rgba(18, 27, 39, 0.98) 100%);
}

.kpi-card.kpi-primary.success {
  border-color: rgba(62, 207, 116, 0.5);
}

.kpi-card.kpi-primary.warning {
  border-color: rgba(243, 182, 63, 0.5);
}

.kpi-card.kpi-primary.danger {
  border-color: rgba(255, 91, 85, 0.5);
}

.kpi-card.kpi-primary .kpi-value {
  font-size: 34px;
}

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

.kpi-label {
  font-size: 10px;
  color: var(--color-text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 630;
}

.kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 999px;
}

.kpi-trend.up {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.kpi-trend.down {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.kpi-trend.neutral {
  background: var(--color-neutral-bg);
  color: var(--color-neutral);
}

.kpi-body {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 8px;
}

.kpi-value {
  font-size: 21px;
  font-weight: 760;
  letter-spacing: -0.02em;
  line-height: 1;
}

.kpi-primary.success .kpi-value {
  color: var(--color-success);
}

.kpi-primary.warning .kpi-value {
  color: var(--color-warning);
}

.kpi-primary.danger .kpi-value {
  color: var(--color-danger);
}

.kpi-comparison {
  font-size: 11px;
  color: var(--color-text-secondary);
}

.kpi-bar {
  height: 5px;
  background: rgba(143, 160, 178, 0.2);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 2px;
}

.kpi-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: none;
}

.kpi-bar-fill.success {
  background: var(--color-success);
}

.kpi-bar-fill.warning {
  background: var(--color-warning);
}

.kpi-bar-fill.danger {
  background: var(--color-danger);
}

.kpi-icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.kpi-icon .material-icons-round {
  font-size: 15px;
}

.kpi-icon-questions {
  background: rgba(50, 145, 255, 0.17);
  color: #8fc0ff;
}

.kpi-icon-week {
  background: rgba(67, 194, 191, 0.16);
  color: #74ddd7;
}

.kpi-icon-sim {
  background: rgba(243, 182, 63, 0.16);
  color: #ffc766;
}

.kpi-icon-weak {
  background: rgba(255, 91, 85, 0.16);
  color: #ff8b86;
}

.kpi-icon-open {
  background: rgba(255, 91, 85, 0.16);
  color: #ff6b66;
}

.kpi-content {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}

.kpi-subvalue {
  font-size: 11px;
  color: var(--color-text-secondary);
}

.panel-grid {
  display: grid;
  gap: 12px;
  align-items: start;
}

.panel-grid-2 {
  grid-template-columns: 1fr 1fr;
}

.daily-layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 12px;
  align-items: stretch;
}

.daily-layout > .card {
  height: 100%;
}

.card {
  background: linear-gradient(180deg, rgba(19, 28, 39, 0.94), rgba(16, 24, 35, 0.94));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 12px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  transition: border-color var(--transition), opacity var(--transition);
}

.card h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: 0.01em;
}

.card-head-inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.card-head-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn.is-active-filter {
  border-color: rgba(50, 145, 255, 0.44);
  color: var(--color-accent-light);
}

.form-grid {
  display: grid;
  gap: 10px;
}

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

.form-grid-daily {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card-form #dailyForm {
  min-height: 100%;
  grid-template-rows: auto auto minmax(96px, 1fr) auto auto;
  align-content: stretch;
}

.card-form #dailyForm .daily-error-note {
  min-height: 0;
}

.card-form #dailyForm .daily-error-note textarea {
  height: 100%;
  min-height: 96px;
  resize: none;
}

.card-form #dailyForm .form-actions {
  align-self: end;
}

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

.form-weak {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

label {
  display: grid;
  gap: 4px;
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-weight: 620;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(23, 33, 45, 0.85);
  color: var(--color-text-primary);
  padding: 7px 9px;
  font-size: var(--font-size-sm);
  transition: border-color var(--transition), background var(--transition);
}

input:not([type="checkbox"]),
select {
  min-height: 36px;
}

.subject-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
}

.subject-input-row select {
  min-width: 0;
}

.subject-manage-btn {
  width: 36px;
  height: 36px;
  min-height: 36px;
  flex-shrink: 0;
  align-self: stretch;
}

.subject-manage-btn .material-icons-round {
  font-size: 16px;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-text-muted);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-bg-active);
  outline: none;
}

input.is-invalid,
select.is-invalid,
textarea.is-invalid {
  border-color: var(--color-danger);
  background: rgba(255, 91, 85, 0.1);
}

input.is-invalid:focus,
select.is-invalid:focus,
textarea.is-invalid:focus {
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 56px;
}

.full {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 2px;
}

.form-actions.form-actions-right {
  justify-content: flex-end;
}

.form-feedback {
  min-height: 16px;
  font-size: 11px;
  color: var(--color-danger);
  letter-spacing: 0;
  text-transform: none;
  font-weight: 560;
  margin-top: -2px;
}

.form-feedback:empty {
  min-height: 0;
}

.pct-field {
  position: relative;
}

.pct-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}

.pct-input-wrap input {
  padding-right: 24px;
}

.pct-suffix {
  position: absolute;
  right: 8px;
  color: var(--color-text-tertiary);
  font-size: 12px;
  pointer-events: none;
}

.errors-section {
  display: grid;
  gap: 6px;
}

.section-label {
  font-size: 10px;
  color: var(--color-text-tertiary);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.errors-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 7px 11px;
  color: var(--color-text-primary);
  background: transparent;
  cursor: pointer;
  font-size: 12px;
  font-weight: 680;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition:
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    opacity var(--transition);
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.48;
  cursor: not-allowed;
}

.btn .material-icons-round {
  font-size: 15px;
}

.btn-lg {
  padding: 9px 15px;
}

.btn-block {
  width: 100%;
}

.btn-primary {
  background: linear-gradient(180deg, #3d9cff, #2f88eb);
  border-color: #3f98f4;
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, #54a9ff, #3c94f3);
  border-color: #5caeff;
}

.btn-primary-strong {
  font-weight: 760;
  border-color: #53a9ff;
}

.btn-secondary {
  background: rgba(24, 34, 47, 0.86);
  border-color: var(--color-border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-hover);
  border-color: var(--color-border-light);
}

.btn-danger {
  background: rgba(255, 91, 85, 0.17);
  border-color: var(--color-danger-border);
  color: #ff8f8a;
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  border-color: var(--color-danger);
  color: #fff;
}

.btn-ghost {
  border-color: var(--color-border);
  color: var(--color-text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-bg-hover);
  color: var(--color-text-primary);
}

.file-label {
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.icon-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}

.icon-btn:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-light);
}

.badge {
  min-width: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge-count {
  background: rgba(143, 160, 178, 0.15);
  color: var(--color-text-secondary);
  padding: 3px 9px;
  font-size: 11px;
}

.badge-ok {
  color: var(--color-success);
  background: var(--color-success-bg);
  border: 1px solid rgba(62, 207, 116, 0.4);
}

.badge-warn {
  color: var(--color-warning);
  background: var(--color-warning-bg);
  border: 1px solid rgba(243, 182, 63, 0.38);
}

.badge-danger {
  color: var(--color-danger);
  background: var(--color-danger-bg);
  border: 1px solid var(--color-danger-border);
}

.table-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: auto;
  max-height: 250px;
  background: rgba(12, 18, 26, 0.72);
}

.table-wrap.tall {
  max-height: 340px;
}

.table-wrap-dense {
  max-height: 280px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 900px;
}

.data-table th,
.data-table td {
  padding: 6px 8px;
  text-align: left;
  vertical-align: middle;
  font-size: 11px;
  border-bottom: 1px solid var(--color-border);
}

.data-table thead th {
  position: sticky;
  top: 0;
  z-index: 2;
  background: var(--color-bg-tertiary);
  color: var(--color-text-tertiary);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 700;
  border-bottom-color: var(--color-border-light);
}

.data-table tbody tr {
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover {
  background: rgba(50, 145, 255, 0.11);
}

.data-table td.empty-state {
  text-align: center;
  color: var(--color-text-tertiary);
  padding: 16px;
}

.row-actions {
  display: flex;
  gap: 5px;
}

.row-actions .btn {
  padding: 4px 7px;
  font-size: 10px;
}

.progress-bar-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 106px;
}

.progress-bar {
  height: 6px;
  background: rgba(143, 160, 178, 0.2);
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 999px;
  transition: none;
}

.progress-bar-fill.success {
  background: var(--color-success);
}

.progress-bar-fill.warning {
  background: var(--color-warning);
}

.progress-bar-fill.danger {
  background: var(--color-danger);
}

.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--color-text-tertiary);
}

.pct-value {
  font-weight: 700;
  font-size: 12px;
}

.pct-value.success {
  color: var(--color-success);
}

.pct-value.warning {
  color: var(--color-warning);
}

.pct-value.danger {
  color: var(--color-danger);
}

.gap-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
}

.gap-high {
  background: var(--color-danger-bg);
  color: var(--color-danger);
}

.gap-medium {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.gap-low {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.evolution-indicator {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 10px;
  font-weight: 700;
}

.evolution-indicator.up {
  color: var(--color-success);
}

.evolution-indicator.down {
  color: var(--color-danger);
}

.evolution-indicator.neutral {
  color: var(--color-neutral);
}

.week-main-subject {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 680;
  color: var(--color-text-primary);
}

.week-main-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-accent);
}

.sim-errors-list {
  margin: 0;
  padding-left: 16px;
  display: grid;
  gap: 3px;
}

.sim-errors-list li {
  color: var(--color-text-secondary);
}

.sim-plan-text {
  color: var(--color-text-secondary);
  white-space: pre-wrap;
  line-height: 1.45;
}

.chart-wrap {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(12, 18, 26, 0.7);
  height: 220px;
  overflow: hidden;
}

#simsChart {
  width: 100%;
  height: 100%;
  display: block;
}

.chart-message {
  text-align: center;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  padding: 12px;
}

.empty-state-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px 18px 18px;
  gap: 10px;
  border: none;
  border-radius: 0;
  background: transparent;
}

.empty-state-compact {
  min-height: 0;
  padding: 8px 14px 12px;
  width: 100%;
  margin: auto;
}

.empty-state-icon {
  font-size: 42px;
  color: var(--color-text-muted);
}

.empty-state-block h3 {
  font-size: var(--font-size-lg);
  color: var(--color-text-primary);
  font-weight: 720;
}

.empty-state-block p {
  color: var(--color-text-tertiary);
  font-size: var(--font-size-sm);
  max-width: 360px;
}

.tab-panel.is-empty .empty-state-block {
  flex: 1;
  justify-content: center;
}

.empty-state-inline {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 18px 16px;
  min-height: 160px;
  gap: 8px;
  color: var(--color-text-tertiary);
}

.card-table .empty-state-inline {
  min-height: 190px;
}

.empty-state-inline .material-icons-round {
  font-size: 28px;
  color: var(--color-text-muted);
}

.empty-state-inline p {
  font-size: 12px;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  align-items: start;
  width: min(100%, 860px);
  margin-inline: auto;
}

.settings-card {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.settings-card-danger {
  border-color: rgba(255, 91, 85, 0.38);
  background: linear-gradient(180deg, rgba(44, 22, 26, 0.46), rgba(27, 19, 24, 0.55));
}

.settings-card-danger .btn-danger {
  background: rgba(255, 91, 85, 0.24);
  border-color: rgba(255, 91, 85, 0.55);
  color: #ffb3b0;
  font-weight: 740;
}

.settings-card-danger .btn-danger:hover:not(:disabled) {
  background: var(--color-danger);
  color: #fff;
}

.settings-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
}

.settings-icon {
  font-size: 19px;
  color: var(--color-accent);
}

.settings-icon-danger {
  color: var(--color-danger);
}

.settings-desc {
  font-size: 11px;
  color: var(--color-text-tertiary);
  line-height: 1.5;
}

.settings-info {
  display: grid;
  gap: 4px;
}

.settings-info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 11px;
}

.settings-info-row:last-child {
  border-bottom: none;
}

.settings-info-row span {
  color: var(--color-text-tertiary);
}

.modal-root {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease;
}

.modal-root.is-open {
  opacity: 1;
  pointer-events: auto;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.66);
  backdrop-filter: blur(3px);
}

.modal {
  position: relative;
  z-index: 1;
  width: min(560px, calc(100vw - 32px));
  max-height: calc(100vh - 32px);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  background: #121b27;
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.modal-confirm {
  width: min(420px, calc(100vw - 28px));
}

.modal-head {
  padding: 11px 12px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.modal-head-danger {
  background: rgba(255, 91, 85, 0.14);
  border-bottom-color: var(--color-danger-border);
}

.modal-icon-danger {
  color: var(--color-danger);
  font-size: 20px;
}

.modal-head h4 {
  font-size: var(--font-size-md);
}

.modal-body {
  padding: 12px;
  overflow: auto;
  font-size: var(--font-size-sm);
}

.modal-actions {
  margin-top: 8px;
  border-top: 1px solid var(--color-border);
  padding-top: 10px;
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.subjects-manager {
  display: grid;
  gap: 10px;
}

.subjects-manager-hint {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

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

.subjects-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  max-height: 250px;
  overflow: auto;
}

.subject-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(17, 25, 36, 0.9);
}

.subject-item-name {
  font-size: 13px;
  font-weight: 620;
  color: var(--color-text-primary);
}

.subject-item-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.subject-item-empty {
  justify-content: center;
  color: var(--color-text-tertiary);
  border-style: dashed;
}

.subject-inline-edit {
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 6px;
}

.subject-inline-input {
  min-height: 34px;
}

.subjects-manager-count {
  font-size: 11px;
  color: var(--color-text-tertiary);
}

#confirmInputWrap {
  margin-top: 12px;
}

#confirmInputWrap label {
  text-transform: none;
  letter-spacing: 0;
  font-size: 12px;
}

.loader-overlay {
  position: fixed;
  inset: 0;
  z-index: 130;
  background: rgba(0, 0, 0, 0.62);
  display: grid;
  place-items: center;
}

.loader-overlay[hidden] {
  display: none !important;
}

.loader-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  background: #141f2d;
}

.loader-box p {
  font-size: var(--font-size-sm);
  color: var(--color-text-primary);
}

.spinner {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 3px solid var(--color-border-light);
  border-top-color: var(--color-accent);
  animation: none;
}

.toast-container {
  position: fixed;
  right: 14px;
  bottom: 14px;
  z-index: 140;
  display: grid;
  gap: 7px;
}

.toast {
  min-width: 220px;
  max-width: 400px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: #131c27;
  color: var(--color-text-primary);
  font-size: 12px;
  animation: fadeIn 0.18s ease;
  display: flex;
  align-items: center;
  gap: 9px;
}

.toast .material-icons-round {
  font-size: 17px;
}

.toast-success {
  border-color: rgba(62, 207, 116, 0.55);
}

.toast-success .material-icons-round {
  color: var(--color-success);
}

.toast-error {
  border-color: rgba(255, 91, 85, 0.58);
}

.toast-error .material-icons-round {
  color: var(--color-danger);
}

.toast-info {
  border-color: rgba(50, 145, 255, 0.5);
}

.toast-info .material-icons-round {
  color: var(--color-accent);
}

::-webkit-scrollbar {
  width: 0;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-border-light);
}

@media (max-width: 1260px) {
  .kpi-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .kpi-card.kpi-primary {
    grid-column: span 2;
  }
}

@media (max-width: 980px) {
  .mobile-menu-toggle {
    display: inline-flex;
  }

  .sidebar {
    width: 258px;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
  }

  .sidebar.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .sidebar-close {
    display: inline-flex;
  }

  .workspace {
    margin-left: 0;
    width: 100%;
  }

  .main-content {
    padding: 10px 12px;
    padding-top: 56px;
  }

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

  .kpi-card.kpi-primary {
    grid-column: span 2;
  }

  .panel-grid-2,
  .daily-layout {
    grid-template-columns: 1fr;
  }

  .form-grid-daily,
  .form-weak {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .errors-grid {
    grid-template-columns: 1fr;
  }
}

.sims-layout {
  align-items: stretch;
}

.sims-layout > .card {
  height: 100%;
}

.sims-layout .chart-wrap {
  height: auto;
  flex: 1;
  min-height: 220px;
}

@media (max-width: 640px) {
  .main-content {
    padding: 9px 10px;
    padding-top: 52px;
  }

  .view-header-content h1 {
    font-size: 26px;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .kpi-card.kpi-primary {
    grid-column: 1;
  }

  .form-grid-2,
  .form-grid-daily,
  .form-weak {
    grid-template-columns: 1fr;
  }

  .row-actions {
    flex-direction: column;
    gap: 4px;
  }

  .row-actions .btn {
    width: 100%;
  }

  .card-head-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .card-head-actions .btn {
    flex: 1;
  }

  .modal {
    width: calc(100vw - 16px);
    max-height: calc(100vh - 16px);
  }

  .toast-container {
    left: 10px;
    right: 10px;
    bottom: 10px;
  }

  .toast {
    min-width: 0;
    max-width: none;
    width: 100%;
  }
}