:root {
  --ink: #0b214a;
  --muted: #60749a;
  --line: #dce5f3;
  --panel: #ffffff;
  --page: #f5f8fc;
  --blue: #1d74db;
  --blue-strong: #0b58c2;
  --amber: #f2a900;
  --orange: #f26b21;
  --green: #13a66b;
  --purple: #7c48c8;
  --teal: #10a4aa;
  --red: #e84337;
  --shadow: 0 14px 32px rgba(16, 40, 80, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background: var(--page);
  overflow-x: hidden;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

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

button {
  cursor: pointer;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: 232px;
  display: flex;
  flex-direction: column;
  padding: 22px 14px;
  color: #fff;
  background:
    linear-gradient(145deg, rgba(0, 102, 194, 0.18), transparent 42%),
    #052655;
  box-shadow: 10px 0 35px rgba(5, 38, 85, 0.18);
  z-index: 5;
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 10px 24px;
}

.brand-logo {
  width: 96px;
  height: 120px;
  display: block;
  border-radius: 8px;
  background: #fff;
  object-fit: contain;
  padding: 0;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.24);
}

.brand-title {
  font-weight: 800;
  letter-spacing: 0;
}

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

.nav-item,
.help-button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 0 14px;
  color: #e8f2ff;
  border: 0;
  border-radius: 8px;
  background: transparent;
  font-weight: 700;
  text-align: left;
}

.nav-item.active,
.nav-item:hover,
.help-button:hover {
  color: #fff;
  background: linear-gradient(135deg, #1f86f2, #0c5fcb);
}

.nav-icon {
  width: 24px;
  text-align: center;
  font-weight: 900;
}

.sidebar-footer {
  margin-top: auto;
  padding: 20px 10px 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.25);
}

.sidebar-footer small {
  display: block;
  margin-top: 4px;
  color: #9bb9dc;
}

.app-shell {
  min-height: 100vh;
  margin-left: 232px;
  min-width: 0;
  width: auto;
  max-width: none;
  overflow-x: hidden;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 4;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: center;
  min-height: 96px;
  padding: 18px 32px;
  background: rgba(255, 255, 255, 0.93);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
}

.topbar > div:first-child {
  min-width: 0;
  max-width: 520px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1;
}

h2 {
  font-size: 18px;
}

.topbar p,
.panel-header p {
  margin-top: 4px;
  color: var(--muted);
}

.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.primary-button,
.ghost-button,
.notification-button,
.icon-button {
  min-height: 40px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  font-weight: 800;
}

.primary-button {
  padding: 0 16px;
  border-color: var(--blue);
  color: #fff;
  background: linear-gradient(135deg, #1d7ee8, #095cc6);
}

.ghost-button {
  padding: 0 14px;
}

.ghost-button.compact {
  min-height: 34px;
  font-size: 13px;
}

.full {
  width: 100%;
}

.notification-button {
  position: relative;
  width: 44px;
  font-size: 22px;
}

.notification-button span {
  position: absolute;
  top: -7px;
  right: -7px;
  display: grid;
  min-width: 20px;
  height: 20px;
  place-items: center;
  padding: 0 5px;
  color: #fff;
  background: var(--red);
  border-radius: 999px;
  font-size: 12px;
}

.profile {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 190px;
  padding-left: 12px;
  border-left: 1px solid var(--line);
}

.profile span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.avatar {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: linear-gradient(135deg, #233d6d, #f17d3c);
  font-weight: 900;
}

.filter-strip {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) 180px 180px 190px;
  gap: 12px;
  padding: 22px 32px 0;
  width: 100%;
  max-width: 100%;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 10px 12px;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: #7bb8ff;
  box-shadow: 0 0 0 3px rgba(29, 116, 219, 0.12);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  padding: 20px 32px 18px;
  width: 100%;
  max-width: 100%;
}

.stat-card {
  display: flex;
  gap: 14px;
  align-items: center;
  min-height: 106px;
  padding: 18px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.stat-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: var(--stat-color);
  background: color-mix(in srgb, var(--stat-color), white 84%);
  font-size: 25px;
}

.stat-card strong {
  display: block;
  color: var(--stat-color);
  font-size: 34px;
  line-height: 0.95;
}

.stat-card span {
  display: block;
  margin-top: 4px;
  font-weight: 900;
}

.stat-card small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  font-weight: 800;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
  padding: 0 32px 32px;
  width: 100%;
  max-width: 100%;
}

.main-column {
  min-width: 0;
  display: grid;
  gap: 18px;
}

.right-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-content: start;
  gap: 18px;
}

.panel {
  min-width: 0;
  max-width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  align-items: center;
  padding: 16px 18px 12px;
}

.kanban-board {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
  overflow: visible;
  padding: 0 12px 12px;
  width: 100%;
  max-width: 100%;
}

.kanban-column {
  min-width: 0;
  min-height: 0;
  border: 1px solid color-mix(in srgb, var(--status-color), white 72%);
  border-radius: 8px;
  background: color-mix(in srgb, var(--status-color), white 88%);
}

.kanban-column:has(.kanban-cards > button:only-child) {
  min-height: 128px;
}

.kanban-title {
  position: sticky;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  color: var(--status-color);
  font-weight: 900;
}

.kanban-title span {
  display: grid;
  place-items: center;
  min-width: 26px;
  height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--status-color), white 78%);
}

.kanban-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 8px;
  padding: 0 8px 8px;
}

.kanban-cards > .ghost-button {
  align-self: start;
}

.article-card {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 18px rgba(14, 37, 74, 0.07);
}

.article-card[draggable="true"] {
  cursor: grab;
}

.article-card h3 {
  margin: 0;
  font-size: 14px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

.article-card p,
.article-meta,
.deadline-item span,
.alert-item span {
  color: var(--muted);
  font-size: 12px;
}

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

.article-meta span:last-child {
  min-width: 0;
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.next-action {
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.card-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.card-actions button,
.table-action {
  min-height: 30px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--blue-strong);
  background: #f8fbff;
  font-size: 12px;
  font-weight: 900;
}

.risk-badge,
.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 900;
  white-space: nowrap;
}

.risk-low {
  color: var(--green);
  background: #daf5e9;
}

.risk-medium {
  color: #a56b00;
  background: #fff1cb;
}

.risk-high {
  color: var(--red);
  background: #ffe0dd;
}

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

.chart-row {
  display: grid;
  grid-template-columns: 190px 1fr;
  gap: 18px;
  align-items: center;
  padding: 8px 22px 22px;
}

.donut {
  width: 174px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: conic-gradient(var(--blue) 0 18%, var(--amber) 18% 42%, var(--orange) 42% 62%, var(--green) 62% 83%, var(--purple) 83% 94%, #25a8dc 94% 100%);
}

.donut > div {
  width: 96px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 50%;
  background: #fff;
}

.donut strong {
  font-size: 27px;
}

.donut span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.legend {
  display: grid;
  gap: 9px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.legend li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.legend .dot {
  width: 11px;
  height: 11px;
  margin-right: 8px;
  border-radius: 50%;
  background: var(--dot-color);
}

.legend label {
  display: flex;
  grid-template-columns: none;
  align-items: center;
  gap: 0;
  color: var(--ink);
}

.bar-list {
  display: grid;
  gap: 12px;
  padding: 6px 22px 22px;
}

.bar-item {
  display: grid;
  grid-template-columns: 126px 1fr 24px;
  gap: 10px;
  align-items: center;
  font-size: 13px;
  font-weight: 800;
}

.bar-track {
  height: 20px;
  border-radius: 3px;
  background: #e8eef7;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  background: linear-gradient(90deg, #1d74db, #0b58c2);
}

.table-wrap {
  overflow-x: auto;
  padding: 0 10px 12px;
}

table {
  width: 100%;
  min-width: 860px;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 12px 14px;
  border: 1px solid var(--line);
  text-align: left;
}

th {
  color: #20365f;
  background: #f8fbff;
}

.deadline-list,
.alert-list {
  display: grid;
  gap: 8px;
  padding: 0 16px 16px;
}

.deadline-item,
.alert-item {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.deadline-item:last-child,
.alert-item:last-child {
  border-bottom: 0;
}

.deadline-item strong,
.alert-item strong {
  display: block;
  font-size: 13px;
}

.deadline-date {
  color: var(--deadline-color);
  font-size: 13px;
  font-weight: 900;
}

.alert-count {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  border-radius: 50%;
  background: var(--alert-color);
  font-weight: 900;
}

.ai-panel {
  background:
    linear-gradient(145deg, rgba(29, 116, 219, 0.1), rgba(19, 166, 107, 0.1)),
    #fff;
}

.ai-panel p {
  padding: 0 18px 16px;
  color: #2e4168;
  line-height: 1.55;
}

.ai-panel .primary-button {
  margin: 0 18px 18px;
  width: calc(100% - 36px);
}

dialog {
  width: min(760px, calc(100vw - 32px));
  border: 0;
  border-radius: 8px;
  box-shadow: 0 30px 80px rgba(3, 24, 57, 0.28);
}

dialog::backdrop {
  background: rgba(4, 22, 49, 0.46);
}

.dialog-header,
.dialog-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 18px;
}

.dialog-actions {
  justify-content: space-between;
}

.dialog-action-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.icon-button {
  width: 40px;
  font-size: 24px;
}

.danger-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid #ffc6c0;
  border-radius: 8px;
  color: #b42318;
  background: #fff1ef;
  font-weight: 900;
}

.hidden {
  display: none !important;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0 18px 18px;
}

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

body.kanban-expanded .workspace {
  grid-template-columns: 1fr;
}

body.kanban-expanded .right-column,
body.kanban-expanded .bottom-grid,
body.kanban-expanded .main-column > .panel:last-child {
  display: none;
}

body.kanban-expanded .kanban-board {
  grid-template-columns: minmax(0, 1fr);
}

body[data-section="artigos"] .panel-metrics,
body[data-section="artigos"] .panel-kanban,
body[data-section="artigos"] .panel-analytics,
body[data-section="artigos"] .right-column,
body[data-section="submissoes"] .panel-metrics,
body[data-section="submissoes"] .panel-kanban,
body[data-section="submissoes"] .panel-analytics,
body[data-section="submissoes"] .right-column,
body[data-section="kanban"] .panel-metrics,
body[data-section="kanban"] .panel-analytics,
body[data-section="kanban"] .panel-article-table,
body[data-section="kanban"] .right-column,
body[data-section="alunos"] .panel-kanban,
body[data-section="alunos"] .panel-status-chart,
body[data-section="alunos"] .right-column,
body[data-section="prazos"] .panel-metrics,
body[data-section="prazos"] .main-column,
body[data-section="relatorios"] .panel-kanban,
body[data-section="relatorios"] .panel-article-table {
  display: none;
}

body[data-section="artigos"] .workspace,
body[data-section="submissoes"] .workspace,
body[data-section="kanban"] .workspace,
body[data-section="alunos"] .workspace,
body[data-section="prazos"] .workspace,
body[data-section="relatorios"] .workspace {
  grid-template-columns: minmax(0, 1fr);
}

body[data-section="artigos"] .panel-article-table,
body[data-section="submissoes"] .panel-article-table,
body[data-section="kanban"] .panel-kanban,
body[data-section="alunos"] .panel-student-output,
body[data-section="relatorios"] .panel-analytics {
  min-height: calc(100vh - 225px);
}

body[data-section="kanban"] .kanban-board {
  grid-template-columns: minmax(0, 1fr);
  min-height: calc(100vh - 320px);
}

body[data-section="alunos"] .bottom-grid {
  grid-template-columns: minmax(0, 520px);
}

body[data-section="alunos"] .main-column {
  grid-template-columns: minmax(0, 520px) minmax(0, 1fr);
  align-items: start;
}

body[data-section="alunos"] .panel-article-table {
  grid-column: 2;
  grid-row: 1;
}

body[data-section="prazos"] .right-column {
  grid-template-columns: minmax(0, 1fr);
}

body[data-section="relatorios"] .right-column {
  grid-template-columns: minmax(0, 1fr);
}

@media (max-width: 1320px) {
  .stats-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .right-column {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 1240px) {
  .sidebar {
    position: static;
    width: auto;
    min-height: 0;
    padding: 14px;
  }

  .app-shell {
    margin-left: 0;
    width: 100%;
    max-width: 100%;
  }

  .nav {
    grid-template-columns: repeat(4, minmax(130px, 1fr));
  }

  .topbar,
  .top-actions,
  .filter-strip {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .top-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }

  .profile {
    grid-column: 1 / -1;
    border-left: 0;
    padding-left: 0;
  }

  .filter-strip,
  .stats-grid,
  .workspace {
    padding-left: 16px;
    padding-right: 16px;
  }

  .stats-grid,
  .right-column,
  .bottom-grid,
  body[data-section="alunos"] .main-column,
  body[data-section="prazos"] .right-column,
  body[data-section="relatorios"] .right-column {
    grid-template-columns: 1fr;
  }

  body[data-section="alunos"] .panel-article-table {
    grid-column: auto;
    grid-row: auto;
  }
}

@media (max-width: 980px) {
  .nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

}

@media (max-width: 640px) {
  .nav {
    grid-template-columns: 1fr 1fr;
  }

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

  .chart-row,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .top-actions {
    grid-template-columns: 1fr;
  }

}