/* Exercise create — single-viewport form (no inner scroll), larger type */
.exercise-create-page .quiz-workspace {
  min-height: 0;
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.exercise-create-page .quiz-workspace-panel.lesson-workspace-panel {
  flex: 1;
  height: auto;
  min-height: 0;
  padding: 12px 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: transparent;
}

.exercise-create-page .exercise-form-card {
  flex: 1;
  min-height: 0;
  width: 100%;
  max-width: none;
  margin: 0;
  padding: 18px 20px 16px;
  background: #fff;
  border: 1px solid rgba(21, 42, 69, 0.08);
  border-radius: 14px;
  box-shadow: 0 1px 2px rgba(21, 42, 69, 0.03), 0 8px 20px rgba(21, 42, 69, 0.04);
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: hidden;
}

.exercise-create-page .exercise-form-head {
  flex-shrink: 0;
}

.exercise-create-page .exercise-form-head h1 {
  margin: 0 0 4px;
  font-size: var(--type-title);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.2;
  color: var(--ink, #1a2030);
}

.exercise-create-page .exercise-form-head p {
  margin: 0;
  font-size: var(--type-meta);
  line-height: 1.4;
  color: var(--muted, #5c667a);
  max-width: 70ch;
}

.exercise-create-page .exercise-fields {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
  overflow: hidden;
}

.exercise-create-page .exercise-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: var(--type-meta);
  font-weight: 600;
  color: var(--ink, #1a2030);
}

.exercise-create-page .exercise-field--topic {
  flex: 0 1 auto;
  min-height: 0;
}

.exercise-create-page .exercise-topic-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.exercise-create-page .exercise-field textarea,
.exercise-create-page .exercise-field input[type="number"],
.exercise-create-page .exercise-field select {
  font: inherit;
  font-weight: 400;
  font-size: var(--type-meta);
  padding: 10px 12px;
  border: 1px solid rgba(47, 107, 255, 0.22);
  border-radius: 10px;
  background: #ffffff;
  color: inherit;
  resize: none;
  width: 100%;
  box-sizing: border-box;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 1),
    0 1px 0 rgba(222, 233, 248, 0.98),
    0 2px 0 rgba(208, 222, 242, 0.62),
    0 3px 6px rgba(15, 41, 66, 0.05),
    0 8px 20px rgba(15, 41, 66, 0.08);
}

.exercise-create-page .exercise-field textarea:focus,
.exercise-create-page .exercise-field input[type="number"]:focus,
.exercise-create-page .exercise-field select:focus {
  outline: none;
  border-color: rgba(255, 122, 61, 0.55);
  background: #fff;
  box-shadow:
    0 0 0 3px rgba(255, 122, 61, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 1),
    0 1px 0 rgba(222, 233, 248, 0.98),
    0 3px 8px rgba(47, 107, 255, 0.1),
    0 10px 24px rgba(15, 41, 66, 0.09);
}

.exercise-create-page .exercise-field--topic textarea {
  min-height: 72px;
  max-height: 96px;
  flex: 1;
}

.exercise-create-page .exercise-options-grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 12px;
  align-items: stretch;
}

.exercise-create-page .exercise-options-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 0;
  min-width: 0;
}

.exercise-create-page .exercise-type-switch,
.exercise-create-page .exercise-diff-block,
.exercise-create-page .exercise-mcq-block,
.exercise-create-page .exercise-toggle {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 12px 12px;
  margin: 0;
  background: #f7f9fc;
}

.exercise-create-page .exercise-mcq-block {
  min-height: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.exercise-create-page .exercise-type-switch legend,
.exercise-create-page .exercise-diff-block legend,
.exercise-create-page .exercise-mcq-block legend,
.exercise-create-page .exercise-toggle legend {
  padding: 0 4px;
  font-size: var(--type-meta);
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: none;
  color: var(--ink, #1a2030);
}

.exercise-create-page .exercise-total-hint {
  font-weight: 500;
  margin-left: 8px;
  font-size: var(--type-meta);
  color: var(--muted, #5c667a);
}

.exercise-create-page .exercise-total-hint strong {
  color: var(--ink, #1a2030);
  font-weight: 700;
}

.exercise-create-page .exercise-seg {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.exercise-create-page .exercise-seg-btn {
  font: inherit;
  font-size: var(--type-meta);
  font-weight: 600;
  padding: 11px 12px;
  border: 1px solid var(--line, rgba(20, 30, 50, 0.16));
  border-radius: 10px;
  background: var(--panel, #fff);
  color: var(--text, #1a2030);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.12s ease;
}

.exercise-create-page .exercise-seg-btn:hover {
  background: color-mix(in srgb, var(--blue, #2563eb) 10%, var(--panel, #fff));
}

.exercise-create-page .exercise-seg-btn:active {
  transform: scale(0.98);
}

.exercise-create-page .exercise-seg-btn.is-active {
  background: #1d4ed8;
  border-color: #1d4ed8;
  color: #fff;
}

.exercise-create-page .exercise-diff-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.exercise-create-page .exercise-diff-cell {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: var(--type-meta);
  font-weight: 600;
}

.exercise-create-page .exercise-diff-cell input {
  font: inherit;
  font-weight: 500;
  font-size: var(--type-body);
  padding: 10px 10px;
  border: 1px solid var(--line, rgba(20, 30, 50, 0.14));
  border-radius: 10px;
  background: var(--panel, #fff);
  color: var(--text);
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}

.exercise-create-page .exercise-mcq-hint {
  margin: 0 0 8px;
  font-size: var(--type-meta);
  font-weight: 400;
  color: var(--muted, #5c667a);
  line-height: 1.35;
}

.exercise-create-page .exercise-mcq-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  min-height: 0;
  justify-content: space-between;
}

.exercise-create-page .exercise-mcq-row {
  display: grid;
  grid-template-columns: auto 1fr 72px;
  align-items: center;
  gap: 10px;
  font-size: var(--type-meta);
  font-weight: 500;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 8px;
  background: var(--panel, #fff);
  border: 1px solid transparent;
  color: var(--text);
}

.exercise-create-page .exercise-mcq-row:hover {
  border-color: var(--line, rgba(20, 30, 50, 0.12));
}

.exercise-create-page .exercise-mcq-label {
  line-height: 1.3;
}

.exercise-create-page .exercise-mcq-row input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: #1d4ed8;
}

.exercise-create-page .exercise-mcq-row input[type="number"] {
  font: inherit;
  font-weight: 500;
  font-size: var(--type-meta);
  padding: 8px 8px;
  border: 1px solid var(--line, rgba(20, 30, 50, 0.14));
  border-radius: 8px;
  background: #fff;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}

.exercise-create-page .exercise-mcq-row input[type="number"]:disabled {
  opacity: 0.4;
}

.exercise-create-page .exercise-mcq-status {
  margin: 6px 0 0;
  font-size: var(--type-meta);
  font-weight: 600;
  color: #b45309;
  min-height: 1.2em;
}

.exercise-create-page .exercise-mcq-status.is-ok {
  color: #15803d;
}

.exercise-create-page .exercise-check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: var(--type-meta);
  font-weight: 500;
  cursor: pointer;
  line-height: 1.35;
}

.exercise-create-page .exercise-check input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  accent-color: #1d4ed8;
}

/* Essay mode: one column, hide MCQ panel */
.exercise-create-page.is-essay-mode .exercise-options-grid {
  grid-template-columns: minmax(0, 520px);
}

.exercise-create-page.is-essay-mode .exercise-mcq-block {
  display: none !important;
}

@media (max-width: 1100px) {
  .exercise-create-page .exercise-options-grid {
    grid-template-columns: 1fr;
  }
  .exercise-create-page .quiz-workspace-panel.lesson-workspace-panel {
    overflow: auto;
  }
}

@media (max-width: 720px) {
  .exercise-create-page .exercise-form-card {
    padding: 14px 12px;
  }
  .exercise-create-page .exercise-form-head h1 {
    font-size: var(--type-title);
  }
  .exercise-create-page .exercise-diff-row {
    grid-template-columns: 1fr;
  }
  .exercise-create-page .exercise-mcq-row {
    grid-template-columns: auto 1fr;
  }
  .exercise-create-page .exercise-mcq-row input[type="number"] {
    grid-column: 2;
  }
}