:root {
  color-scheme: light;
  --bg: #f4f1eb;
  --surface: #fffdf8;
  --surface-strong: #ffffff;
  --ink: #202632;
  --muted: #667085;
  --line: #ddd5c8;
  --primary: #176b5d;
  --primary-strong: #0f4f45;
  --primary-soft: #e3f2ee;
  --accent: #b8572a;
  --accent-soft: #f7e8dd;
  --blue: #315b91;
  --blue-soft: #e7edf6;
  --warning: #a86c19;
  --warning-soft: #fbefd9;
  --danger: #a33a3a;
  --danger-soft: #f6e4e4;
  --shadow: 0 16px 40px rgba(31, 39, 51, 0.08);
  --radius: 8px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

button {
  cursor: pointer;
}

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

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 24px clamp(16px, 4vw, 48px) 18px;
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}

.topbar h1 {
  margin-top: 4px;
  font-size: clamp(1.35rem, 2.1vw, 2rem);
  letter-spacing: 0;
}

.topbar-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-logo {
  width: 56px;
  height: 56px;
  flex: 0 0 auto;
  border-radius: 14px;
  background: var(--primary);
  box-shadow: 0 8px 20px rgba(31, 39, 51, 0.14);
  object-fit: cover;
}

.brand-copy {
  min-width: 0;
}

.eyebrow {
  color: var(--accent);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.muted,
.empty-mini {
  color: var(--muted);
}

.topbar-actions,
.draw-actions,
.practice-actions,
.timer-controls,
.dossier-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.button,
.icon-button,
.mode-button,
.segment,
.text-button,
.insight-item {
  border: 1px solid transparent;
  border-radius: var(--radius);
  transition:
    transform 0.16s ease,
    border-color 0.16s ease,
    background 0.16s ease,
    color 0.16s ease;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 14px;
  font-weight: 750;
  white-space: nowrap;
}

.button:hover,
.icon-button:hover,
.mode-button:hover,
.segment:hover,
.text-button:hover,
.insight-item:hover {
  transform: translateY(-1px);
}

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

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

.button.ghost {
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
}

.button.subtle {
  background: var(--primary-soft);
  color: var(--primary-strong);
}

.button.small {
  min-height: 34px;
  padding-inline: 10px;
  font-size: 0.85rem;
}

.text-button {
  min-height: 30px;
  padding: 0 9px;
  background: var(--surface);
  border-color: var(--line);
  color: var(--blue);
  font-size: 0.82rem;
  font-weight: 800;
}

.file-button {
  position: relative;
  overflow: hidden;
}

.file-button input {
  position: absolute;
  inset: 0;
  cursor: pointer;
  opacity: 0;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(350px, 440px);
  gap: 22px;
  padding: 22px clamp(16px, 4vw, 48px) 36px;
}

.workspace,
.sidebar {
  min-width: 0;
}

.workspace,
.sidebar {
  display: grid;
  gap: 18px;
  align-content: start;
}

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

.mode-button {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 62px;
  padding: 12px;
  background: var(--surface);
  border-color: var(--line);
  color: var(--ink);
  text-align: left;
  font-weight: 850;
}

.mode-button.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #fff;
}

.mode-icon {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.32);
  flex: 0 0 auto;
  font-weight: 900;
}

.mode-button:not(.active) .mode-icon {
  background: var(--blue-soft);
  border-color: var(--line);
  color: var(--blue);
}

.draw-panel,
.temario-selector,
.session-panel,
.dossier-panel,
.detail-panel,
.help-panel,
.viewer-panel,
.progress-panel,
.topic-panel,
.history-panel,
.insight-panel,
.form-block {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.draw-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 22px;
}

.temario-selector {
  display: grid;
  gap: 12px;
  padding: 16px;
}

.selector-grid {
  display: grid;
  grid-template-columns: minmax(240px, 0.8fr) minmax(280px, 1.2fr);
  gap: 12px;
}

.selection-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

.selection-meta .text-button {
  text-decoration: none;
}

.draw-copy {
  display: grid;
  gap: 8px;
}

.draw-copy h2,
.session-head h2,
.panel-title-row h2,
.progress-header h2 {
  font-size: 1.15rem;
  line-height: 1.25;
  letter-spacing: 0;
}

.draw-copy p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.5;
}

.result-zone {
  min-height: 260px;
}

.empty-state {
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  min-height: 260px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: rgba(255, 253, 248, 0.7);
  text-align: center;
  padding: 28px;
}

.empty-state.compact {
  min-height: 118px;
  padding: 18px;
}

.empty-state p {
  color: var(--muted);
}

.empty-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.45rem;
  font-weight: 900;
}

.draw-results {
  display: grid;
  gap: 12px;
}

.draw-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.draw-number,
.topic-number {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 900;
  flex: 0 0 auto;
}

.draw-card h3 {
  margin: 0 0 5px;
  font-size: 1rem;
  line-height: 1.35;
}

.draw-meta {
  color: var(--muted);
  font-size: 0.86rem;
}

.session-panel,
.dossier-panel,
.detail-panel,
.help-panel,
.viewer-panel {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.session-head,
.progress-header,
.panel-title-row,
.practice-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.session-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 0.85fr);
  gap: 14px;
}

.form-block {
  display: grid;
  gap: 14px;
  padding: 16px;
  box-shadow: none;
}

.block-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
}

.block-title h3 {
  font-size: 1rem;
  letter-spacing: 0;
}

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

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

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

input,
select {
  min-height: 38px;
  padding: 0 10px;
}

textarea {
  resize: vertical;
  padding: 12px;
  line-height: 1.45;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--primary);
  outline: 3px solid rgba(23, 107, 93, 0.15);
}

.checklist {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.checklist label {
  display: flex;
  align-items: center;
  min-height: 34px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--ink);
}

.checklist input {
  width: 18px;
  height: 18px;
  min-height: 18px;
  accent-color: var(--primary);
}

.rubric-list {
  display: grid;
  gap: 10px;
}

.rubric-item {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr) 24px;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.rubric-item input {
  min-height: 24px;
  padding: 0;
  accent-color: var(--primary);
}

.rubric-item output {
  color: var(--primary-strong);
  font-weight: 900;
  text-align: right;
}

.timer-box {
  display: grid;
  justify-items: end;
  gap: 6px;
}

.timer-box label {
  color: var(--muted);
}

.timer-controls input {
  width: 74px;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 900;
}

#timerOutput {
  font-variant-numeric: tabular-nums;
  font-size: 1.45rem;
  font-weight: 900;
}

.file-drop {
  display: grid;
  place-items: center;
  min-height: 76px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--blue);
  position: relative;
  overflow: hidden;
}

.file-drop input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

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

.attachment-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.attachment-item span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-item small {
  color: var(--muted);
  white-space: nowrap;
}

.session-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: var(--muted);
  font-size: 0.9rem;
}

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

.session-detail-content {
  display: grid;
  gap: 14px;
}

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

.detail-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.detail-list {
  display: grid;
  gap: 8px;
  margin: 0;
}

.detail-list div {
  display: grid;
  grid-template-columns: minmax(120px, 0.45fr) minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.detail-list dt {
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.detail-list dd {
  margin: 0;
  font-weight: 700;
  line-height: 1.35;
}

.score-big {
  color: var(--primary-strong);
  font-size: 2rem;
  font-weight: 900;
}

.section-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.tag.done {
  background: var(--primary-soft);
  border-color: rgba(23, 107, 93, 0.35);
  color: var(--primary-strong);
}

.detail-note {
  color: var(--ink);
  line-height: 1.5;
  white-space: pre-wrap;
}

.detail-actions,
.history-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

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

.help-grid article {
  display: grid;
  gap: 7px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.help-grid h3 {
  font-size: 0.98rem;
}

.help-grid p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

.attachment-viewer-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.28fr) minmax(0, 1fr);
  gap: 14px;
}

.attachment-browser {
  display: grid;
  align-content: start;
  gap: 8px;
  max-height: 680px;
  overflow: auto;
}

.attachment-tab {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  color: var(--ink);
  text-align: left;
}

.attachment-tab.active {
  border-color: rgba(23, 107, 93, 0.45);
  background: var(--primary-soft);
}

.attachment-tab span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 850;
}

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

.attachment-preview {
  min-width: 0;
  display: grid;
  gap: 12px;
}

.preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.preview-head h3 {
  overflow-wrap: anywhere;
  font-size: 1rem;
}

.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.viewer-actions a {
  text-decoration: none;
}

.image-preview-wrap {
  display: grid;
  place-items: center;
  min-height: 420px;
  max-height: 760px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
  padding: 12px;
}

.image-preview-wrap img {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
}

.pdf-preview {
  width: 100%;
  min-height: 720px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.progress-panel,
.topic-panel,
.history-panel,
.insight-panel {
  padding: 16px;
}

.progress-ring {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: conic-gradient(var(--primary) var(--progress, 0%), var(--primary-soft) 0);
}

.progress-ring span {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--surface);
  color: var(--primary-strong);
  font-size: 0.85rem;
  font-weight: 900;
}

.progress-track {
  height: 9px;
  margin: 16px 0;
  overflow: hidden;
  border-radius: 999px;
  background: var(--primary-soft);
}

.progress-track div {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
  transition: width 0.2s ease;
}

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

.metrics div {
  display: grid;
  gap: 2px;
  padding: 10px;
  border-radius: var(--radius);
  background: var(--surface-strong);
  border: 1px solid var(--line);
}

.metrics strong {
  font-size: 1.12rem;
}

.metrics span {
  color: var(--muted);
  font-size: 0.78rem;
}

.topic-panel,
.history-panel,
.insight-panel {
  display: grid;
  gap: 14px;
}

.filters {
  display: grid;
  gap: 10px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.segment {
  min-height: 34px;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
}

.segment.active {
  background: var(--ink);
  color: #fff;
}

.topic-list,
.history-list,
.insight-list {
  display: grid;
  gap: 8px;
  max-height: 430px;
  overflow: auto;
  padding-right: 3px;
}

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

.insight-item {
  display: grid;
  gap: 3px;
  width: 100%;
  padding: 10px;
  background: var(--surface-strong);
  border-color: var(--line);
  color: var(--ink);
  text-align: left;
}

.insight-item strong {
  font-size: 0.92rem;
}

.insight-item span {
  color: var(--muted);
  font-size: 0.82rem;
}

.empty-mini {
  padding: 10px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  font-size: 0.9rem;
}

.topic-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  padding: 10px;
  border: 1px solid var(--line);
  border-left-width: 5px;
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.topic-item.level-0 {
  border-left-color: var(--line);
}

.topic-item.level-1,
.topic-item.level-2 {
  border-left-color: var(--warning);
}

.topic-item.level-3,
.topic-item.level-4 {
  border-left-color: var(--blue);
}

.topic-item.level-5 {
  border-left-color: var(--primary);
}

.topic-title {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.topic-title strong {
  line-height: 1.35;
}

.topic-title span {
  color: var(--muted);
  font-size: 0.78rem;
}

.topic-actions {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

.level-select {
  min-height: 34px;
  font-size: 0.84rem;
}

.history-item {
  display: grid;
  gap: 6px;
  padding: 11px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface-strong);
}

.history-item strong {
  line-height: 1.35;
}

.history-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.78rem;
}

.history-note {
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 8px;
  border-radius: 999px;
  background: var(--blue-soft);
  color: var(--blue);
  font-weight: 800;
}

.hidden {
  display: none !important;
}

.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  max-width: min(420px, calc(100vw - 36px));
  padding: 12px 14px;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition:
    opacity 0.18s ease,
    transform 0.18s ease;
}

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

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .mode-switch,
  .selector-grid,
  .session-grid,
  .dossier-grid,
  .detail-grid,
  .help-grid,
  .attachment-viewer-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .topbar-brand {
    width: 100%;
    align-items: center;
  }

  .brand-logo {
    width: 48px;
    height: 48px;
    border-radius: 12px;
  }

  .topbar,
  .draw-panel,
  .selection-meta,
  .session-head,
  .practice-footer,
  .progress-header,
  .panel-title-row,
  .block-title {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions,
  .draw-actions,
  .practice-actions,
  .dossier-actions,
  .preview-head,
  .viewer-actions {
    width: 100%;
  }

  .preview-head,
  .viewer-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .field-grid,
  .checklist,
  .segmented,
  .metrics {
    grid-template-columns: 1fr;
  }

  .draw-card {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .draw-card .button {
    grid-column: 1 / -1;
  }

  .timer-box {
    justify-items: start;
  }

  .timer-controls {
    flex-wrap: wrap;
  }

  .rubric-item {
    grid-template-columns: 82px minmax(0, 1fr) 24px;
  }

  .attachment-item,
  .topic-actions,
  .detail-list div {
    grid-template-columns: 1fr;
  }

  .pdf-preview {
    min-height: 560px;
  }
}