:root {
  --bg: #f4efe7;
  --panel: rgba(255, 252, 247, 0.92);
  --panel-border: rgba(73, 54, 34, 0.11);
  --text: #20150c;
  --muted: #756351;
  --teal: #0c6a60;
  --teal-soft: rgba(12, 106, 96, 0.14);
  --orange: #c47526;
  --orange-soft: rgba(196, 117, 38, 0.14);
  --ink: #475569;
  --ink-soft: rgba(71, 85, 105, 0.14);
  --danger: #b44c34;
  --shadow: 0 18px 40px rgba(58, 41, 22, 0.08);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Tajawal", "IBM Plex Sans Arabic", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(12, 106, 96, 0.12), transparent 24%),
    radial-gradient(circle at top left, rgba(196, 117, 38, 0.14), transparent 22%),
    linear-gradient(180deg, #fcf8f1 0%, var(--bg) 100%);
}

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

select {
  color: var(--text);
}

.app-shell {
  width: min(1480px, calc(100% - 28px));
  margin: 24px auto 36px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-panel {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(280px, 0.9fr);
  gap: 24px;
  padding: 28px 30px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.82rem;
  font-weight: 700;
}

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

h2 {
  font-size: 1.24rem;
}

h3 {
  font-size: 1.08rem;
}

.hero-copy,
.hero-note,
.subject-subtitle,
.subject-item-meta,
.subject-item-progress,
.status-message,
.lesson-preview small,
.muted-copy,
.unit-copy p {
  color: var(--muted);
}

.hero-copy {
  margin-top: 14px;
  line-height: 1.8;
  max-width: 70ch;
}

.hero-tools {
  display: grid;
  gap: 16px;
  align-content: start;
}

.hero-note {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.68);
  border: 1px solid rgba(73, 54, 34, 0.08);
  line-height: 1.7;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 14px;
  margin-top: 18px;
}

.summary-card {
  position: relative;
  padding: 18px;
}

.summary-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 6px;
  border-radius: 24px 0 0 24px;
  background: var(--ink);
}

.summary-card[data-tone="success"]::before {
  background: var(--teal);
}

.summary-card[data-tone="warning"]::before {
  background: var(--orange);
}

.summary-title,
.field span,
.progress-label,
.subject-state,
.metric-chip,
.badge,
.order-badge {
  font-size: 0.84rem;
  font-weight: 700;
}

.summary-value {
  display: block;
  margin-top: 10px;
  font-size: 2rem;
}

.filters-panel {
  margin-top: 18px;
  padding: 22px;
}

.filters-panel-head {
  margin-bottom: 14px;
}

.filters-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(4, minmax(0, 1fr));
  gap: 12px;
}

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

.sidebar-panel,
.subject-panel {
  padding: 22px;
}

.panel-title-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}

.compact-row {
  align-items: center;
}

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

.field input,
.field select,
.ghost-button,
.primary-button {
  border-radius: 14px;
  border: 1px solid rgba(73, 54, 34, 0.14);
}

.field input,
.field select {
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
}

.subject-list-meta {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.92rem;
}

.button-row,
.split-actions,
.unit-actions,
.subject-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.primary-button,
.ghost-button {
  padding: 11px 16px;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.primary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button:disabled,
.ghost-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

.primary-button {
  background: var(--teal);
  color: #fff;
  border-color: transparent;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.7);
  color: var(--text);
}

.danger-button {
  color: var(--danger);
  border-color: rgba(180, 76, 52, 0.2);
}

.small-button {
  padding: 8px 12px;
  font-size: 0.88rem;
}

.subject-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  max-height: calc(100vh - 250px);
  overflow: auto;
  padding-inline-end: 4px;
}

.subject-item {
  border: 1px solid rgba(73, 54, 34, 0.08);
  border-radius: 18px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.66);
  cursor: pointer;
  text-align: right;
  display: grid;
  gap: 8px;
}

.subject-item.is-selected {
  border-color: rgba(12, 106, 96, 0.38);
  background: rgba(12, 106, 96, 0.08);
}

.subject-item-head {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.subject-state {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: 999px;
}

.subject-state.is-complete {
  background: var(--teal-soft);
  color: var(--teal);
}

.subject-state.is-open {
  background: var(--orange-soft);
  color: var(--orange);
}

.subject-state.is-inactive {
  background: rgba(71, 85, 105, 0.14);
  color: var(--ink);
}

.subject-panel-head {
  align-items: flex-start;
}

.subject-header-copy {
  display: grid;
  gap: 10px;
}

.metric-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(73, 54, 34, 0.08);
}

.warning-chip {
  background: var(--orange-soft);
  color: var(--orange);
}

.inactive-chip {
  background: rgba(71, 85, 105, 0.14);
  color: var(--ink);
}

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

.subject-workspace-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(360px, 0.95fr);
  gap: 18px;
  align-items: start;
  margin-top: 16px;
}

.subject-reference-column {
  position: sticky;
  top: 18px;
  display: grid;
  gap: 12px;
}

.subject-title {
  cursor: text;
}

.inline-subject-name-input {
  width: min(100%, 560px);
  min-height: 48px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid rgba(73, 54, 34, 0.18);
  background: rgba(255, 255, 255, 0.9);
  color: var(--text);
}

.inline-subject-name-input:focus {
  outline: none;
  border-color: rgba(12, 106, 96, 0.42);
  box-shadow: 0 0 0 4px rgba(12, 106, 96, 0.12);
}

.sahl-reference-shell {
  margin-top: 0;
}

.sahl-reference {
  display: grid;
  gap: 14px;
  padding: 16px;
  border-radius: 20px;
  border: 1px solid rgba(73, 54, 34, 0.08);
  background: rgba(255, 255, 255, 0.72);
.sahl-reference[data-state="available"] {
  background: linear-gradient(180deg, rgba(255, 252, 247, 0.96), rgba(246, 241, 233, 0.96));
}

.sahl-reference[data-state="missing"],
.sahl-reference[data-state="loading"],
.sahl-reference[data-state="empty"] {
  background: rgba(255, 255, 255, 0.62);
}

}

.reference-kicker {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sahl-reference-head,
.sahl-reference-meta,
.sahl-reference-compare,
.sahl-term-head,
.sahl-term-actions,
.sahl-unit-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sahl-reference-selector {
  display: grid;
  gap: 8px;
}

.sahl-reference-selector-head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
}

.sahl-selector-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.sahl-reference-field select {
  width: 100%;
  min-height: 44px;
}

.sahl-reference-head,
.sahl-term-head {
  justify-content: space-between;
  align-items: flex-start;
}

.reference-meta-item {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(73, 54, 34, 0.08);
  font-size: 0.9rem;
}

.muted-meta .reference-meta-item {
  background: rgba(71, 85, 105, 0.08);
}

.sahl-reference-compare {
  align-items: center;
  padding: 12px 14px;
  border-radius: 18px;
  background: var(--teal-soft);
  border: 1px solid rgba(12, 106, 96, 0.14);
}

.sahl-reference-compare small {
  width: 100%;
  color: var(--muted);
}

.sahl-reference-terms {
  display: grid;
  gap: 12px;
}

.sahl-term-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid rgba(73, 54, 34, 0.08);
  background: rgba(255, 255, 255, 0.68);
}

.sahl-term-card[data-term="first_term"] {
  background: rgba(12, 106, 96, 0.06);
  border-color: rgba(12, 106, 96, 0.16);
}

.sahl-term-card[data-term="second_term"] {
  background: rgba(196, 117, 38, 0.08);
  border-color: rgba(196, 117, 38, 0.16);
}

.sahl-term-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

.sahl-term-list {
  display: grid;
  gap: 8px;
  margin-top: 10px;
}

.sahl-unit-row {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(73, 54, 34, 0.08);
}

.sahl-unit-position {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  min-height: 34px;
  border-radius: 999px;
  background: rgba(71, 85, 105, 0.08);
  color: var(--ink);
  font-weight: 700;
}

.sahl-unit-copy {
  min-width: 0;
}

.sahl-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.subject-item.is-inactive,
.unit-card.is-inactive {
  filter: grayscale(1);
  opacity: 0.72;
}

.subject-item.is-inactive {
  background: rgba(236, 239, 244, 0.78);
  border-style: dashed;
}

.unit-card.is-inactive {
  background: rgba(236, 239, 244, 0.82);
}

.badge-inactive {
  background: rgba(71, 85, 105, 0.14);
  color: var(--ink);
}

.progress-card {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(73, 54, 34, 0.08);
  display: grid;
  gap: 10px;
}

.progress-card strong {
  font-size: 1.25rem;
}

.meter-track {
  display: block;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: rgba(73, 54, 34, 0.08);
  overflow: hidden;
}

.meter-fill {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--teal);
}

.accent-fill {
  background: var(--ink);
}

.warning-fill {
  background: var(--orange);
}

.success-fill {
  background: var(--teal);
}

.split-actions {
  margin-top: 16px;
}

.status-message {
  min-height: 24px;
  margin-top: 16px;
}

.status-message[data-tone="error"] {
  color: var(--danger);
}

.status-message[data-tone="success"] {
  color: var(--teal);
}

.unit-list {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.unit-section {
  display: grid;
  gap: 10px;
  padding: 10px 0 2px;
}

.unit-section + .unit-section {
  border-top: 1px solid rgba(73, 54, 34, 0.08);
  padding-top: 16px;
}

.unit-section-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 10px;
}

.unit-section-head strong {
  display: block;
  font-size: 0.96rem;
}

.unit-section-head p {
  margin-top: 4px;
  font-size: 0.84rem;
  color: var(--muted);
}

.unit-section-list {
  display: grid;
  gap: 8px;
}

.unit-card {
  padding: 10px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(73, 54, 34, 0.08);
  display: grid;
  gap: 8px;
  transition: border-color 120ms ease, transform 120ms ease, background 120ms ease;
  cursor: grab;
}

.unit-card:hover {
  transform: translateY(-1px);
}

.unit-card.is-dragging {
  opacity: 0.55;
  cursor: grabbing;
}

.unit-card.is-drop-target {
  border-color: rgba(12, 106, 96, 0.42);
}

.unit-card[data-sort-status="unsorted"] {
  border-style: dashed;
}

.unit-card[data-term="الفصل الأول"] {
  box-shadow: inset 4px 0 0 var(--teal);
}

.unit-card[data-term="الفصل الثاني"] {
  box-shadow: inset 4px 0 0 var(--orange);
}

.unit-card[data-term="الفصل الأول والثاني"] {
  box-shadow: inset 4px 0 0 var(--teal), inset -4px 0 0 var(--orange);
}

.unit-card-head {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: start;
}

.order-badge {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(73, 54, 34, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.82rem;
}

.unit-copy {
  display: grid;
  gap: 2px;
}

.unit-copy h3 {
  font-size: 0.96rem;
}

.unit-copy p {
  font-size: 0.84rem;
}

.unit-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  justify-content: flex-end;
}

.unit-term-control {
  display: grid;
  gap: 4px;
  min-width: 170px;
}

.unit-term-control span {
  font-size: 0.75rem;
  color: var(--muted);
}

.unit-term-select {
  min-height: 38px;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid rgba(73, 54, 34, 0.1);
  background: rgba(255, 255, 255, 0.86);
  color: var(--text);
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  font-size: 0.78rem;
}

.badge-term-first,
.badge-sort-sorted {
  background: var(--teal-soft);
  color: var(--teal);
}

.badge-term-second {
  background: var(--orange-soft);
  color: var(--orange);
}

.badge-term-both {
  background: linear-gradient(90deg, var(--teal-soft) 0%, var(--teal-soft) 48%, var(--orange-soft) 52%, var(--orange-soft) 100%);
  color: var(--text);
}

.badge-term-none,
.badge-sort-unsorted {
  background: var(--ink-soft);
  color: var(--ink);
}

.lesson-preview {
  border-top: 1px solid rgba(73, 54, 34, 0.08);
  padding-top: 10px;
}

.lesson-preview summary {
  cursor: pointer;
  padding-top: 4px;
}

.lesson-preview-list {
  margin: 10px 0 0;
  padding: 0 18px 0 0;
  font-size: 0.88rem;
}

.lesson-preview-list li {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 8px;
}

.split-marker,
.empty-state-card {
  padding: 12px 14px;
  border-radius: 16px;
  font-size: 0.9rem;
}

.split-marker {
  margin-top: 2px;
  background: linear-gradient(90deg, rgba(196, 117, 38, 0.16), rgba(12, 106, 96, 0.08));
  border: 1px solid rgba(196, 117, 38, 0.18);
  color: var(--text);
  font-weight: 700;
}

.empty-state-card {
  display: grid;
  gap: 8px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px dashed rgba(73, 54, 34, 0.2);
  color: var(--muted);
}

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

  .filters-grid,
  .subject-workspace-grid {
    grid-template-columns: 1fr;
  }

  .workspace-grid,
  .hero-panel {
    grid-template-columns: 1fr;
  }

  .subject-list {
    max-height: none;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 16px, 100%);
    margin-top: 16px;
  }

  .summary-grid,
  .subject-progress-grid,
  .filters-grid,
  .sahl-selector-grid {
    grid-template-columns: 1fr;
  }

  .panel,
  .hero-panel,
  .sidebar-panel,
  .subject-panel {
    padding: 18px;
  }

  .subject-item-head,
  .unit-badges,
  .subject-chip-row,
  .button-row,
  .filters-panel-head,
  .split-actions,
  .unit-section-head,
  .unit-actions,
  .sahl-reference-selector-head,
  .sahl-reference-head,
  .sahl-reference-meta,
  .sahl-reference-compare,
  .sahl-term-head,
  .sahl-term-actions,
  .sahl-unit-actions,
  .lesson-preview-list li {
    flex-direction: column;
    align-items: stretch;
  }

  .panel-title-row,
  .subject-panel-head,
  .subject-item-head {
    display: flex;
    align-items: stretch;
  }

  .unit-card-head,
  .sahl-unit-row {
    grid-template-columns: 1fr;
  }

  .subject-reference-column {
    position: static;
  }

  .unit-badges {
    justify-content: flex-start;
  }
}