.ce-app {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
}

.ce-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}

.ce-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ce-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ce-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.ce-main {
  flex: 1;
  overflow: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Input section */
.ce-input-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.ce-input-row {
  display: flex;
  gap: 10px;
  align-items: center;
}

.ce-expression-input {
  flex: 1;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
  outline: none;
  letter-spacing: 2px;
  transition: border-color 0.2s;
}

.ce-expression-input:focus {
  border-color: var(--accent);
}

.ce-expression-input::placeholder {
  color: var(--text-muted);
  opacity: 0.4;
}

.ce-expression-input.ce-input-error {
  border-color: var(--red);
  color: var(--red);
}

.ce-preset-select {
  padding: 10px 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  cursor: pointer;
  outline: none;
  min-width: 180px;
}

.ce-preset-select:focus {
  border-color: var(--accent);
}

.ce-field-labels {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  padding: 0 20px;
}

.ce-field-labels.ce-labels-6 {
  grid-template-columns: repeat(6, 1fr);
}

.ce-field-labels.ce-labels-7 {
  grid-template-columns: repeat(7, 1fr);
}

.ce-field-label {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-align: center;
}

/* Explanation panel */
.ce-explanation {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.ce-explanation-text {
  font-size: 16px;
  color: var(--text);
  line-height: 1.6;
  font-weight: 500;
}

.ce-explanation-text strong {
  color: var(--accent);
}

.ce-explanation-error {
  color: var(--red);
  font-size: 14px;
  font-weight: 500;
}

.ce-timezone-info {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

/* Visual field breakdown */
.ce-breakdown {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ce-breakdown-header {
  padding: 8px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.ce-breakdown-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1px;
  background: var(--border);
}

.ce-breakdown-field {
  background: var(--bg);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.ce-breakdown-field.ce-field-invalid {
  background: color-mix(in srgb, var(--red) 8%, var(--bg));
}

.ce-breakdown-name {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.ce-breakdown-value {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
}

.ce-breakdown-field.ce-field-invalid .ce-breakdown-value {
  color: var(--red);
}

.ce-breakdown-desc {
  font-size: 12px;
  color: var(--text-secondary);
  line-height: 1.4;
}

.ce-breakdown-range {
  font-size: 10px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* Next runs */
.ce-next-runs {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ce-next-runs-header {
  padding: 8px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
}

.ce-next-runs-list {
  padding: 10px 16px;
}

.ce-next-run {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.ce-next-run:last-child {
  border-bottom: none;
}

.ce-run-index {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  min-width: 24px;
}

.ce-run-date {
  color: var(--text);
  font-weight: 500;
}

.ce-run-relative {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-sans);
}

.ce-no-runs {
  padding: 10px 0;
  font-size: 13px;
  color: var(--red);
}

/* Cheatsheet */
.ce-cheatsheet {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ce-cheatsheet-header {
  padding: 8px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  user-select: none;
}

.ce-cheatsheet-toggle {
  font-size: 10px;
  color: var(--text-muted);
  transition: transform 0.2s;
}

.ce-cheatsheet-toggle.ce-open {
  transform: rotate(180deg);
}

.ce-cheatsheet-body {
  display: none;
}

.ce-cheatsheet-body.ce-visible {
  display: block;
}

.ce-cheatsheet-table {
  width: 100%;
  border-collapse: collapse;
}

.ce-cheatsheet-table th {
  padding: 8px 14px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  text-align: left;
}

.ce-cheatsheet-table td {
  padding: 7px 14px;
  border-bottom: 1px solid var(--border-light);
  font-size: 12px;
  color: var(--text-secondary);
}

.ce-cheatsheet-table tr:last-child td {
  border-bottom: none;
}

.ce-cheatsheet-table td:first-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.ce-cheatsheet-section {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
}

.ce-cheatsheet-section:last-child {
  border-bottom: none;
}

.ce-cheatsheet-section-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
}

.ce-cheatsheet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 4px;
}

.ce-cheatsheet-item {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 12px;
  padding: 3px 0;
}

.ce-cheatsheet-symbol {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent);
  min-width: 40px;
}

.ce-cheatsheet-meaning {
  color: var(--text-secondary);
}

/* Status bar */
.ce-status-bar {
  padding: 6px 16px;
  border-top: 1px solid var(--border);
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
}

.ce-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 500;
}

.ce-status-valid {
  background: color-mix(in srgb, var(--green) 15%, transparent);
  color: var(--green);
}

.ce-status-invalid {
  background: color-mix(in srgb, var(--red) 15%, transparent);
  color: var(--red);
}

.ce-status-empty {
  background: color-mix(in srgb, var(--text-muted) 15%, transparent);
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .ce-main {
    padding: 12px;
    gap: 12px;
  }

  .ce-input-row {
    flex-direction: column;
  }

  .ce-preset-select {
    width: 100%;
    min-width: unset;
  }

  .ce-expression-input {
    font-size: 16px;
    padding: 12px 14px;
    letter-spacing: 1px;
  }

  .ce-field-labels {
    display: none;
  }

  .ce-breakdown-grid {
    grid-template-columns: 1fr 1fr;
  }

  .ce-explanation-text {
    font-size: 14px;
  }

  .ce-next-run {
    flex-direction: column;
    align-items: flex-start;
    gap: 2px;
  }

  .ce-run-relative {
    margin-left: 0;
  }

  .ce-cheatsheet-grid {
    grid-template-columns: 1fr;
  }

  .ce-header {
    padding: 10px 14px;
  }
}