:root {
    --planner-paper-shadow: 0 18px 36px rgba(15, 23, 42, 0.18);
}

.hero {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-top: 24px;
}

.tool-icon-header {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border: 1px solid var(--border-color);
    background: var(--accent-general-dim);
    color: var(--accent-general);
}

.planner-layout {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr) 300px;
    gap: 24px;
    align-items: start;
}

.panel {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px;
    min-width: 0;
}

.control-panel,
.preview-panel,
.sidebar-panel {
    min-width: 0;
}

.panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--border-color);
}

.panel-heading.compact {
    margin-bottom: 16px;
}

.panel-heading h2 {
    margin: 0 0 4px;
    font-size: 1.35rem;
}

.panel-heading p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.panel-section + .panel-section {
    margin-top: 18px;
    padding-top: 18px;
    border-top: 1px solid var(--border-color);
}

.panel-section h3 {
    margin: 0 0 12px;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

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

.field-grid.three {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
    min-width: 0;
}

.field-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.main-input,
.main-select {
    width: 100%;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    outline: none;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.main-input:focus,
.main-select:focus {
    border-color: var(--accent-general);
    background: var(--bg-primary);
}

.helper-text {
    margin: 8px 0 0;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.toggle-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 0;
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.45;
}

.toggle-row input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-general);
    flex: 0 0 auto;
}

.preset-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
    margin-bottom: 14px;
}

.day-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.day-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    background: var(--bg-secondary);
    font-size: 0.88rem;
    color: var(--text-primary);
}

.day-pill input {
    width: 16px;
    height: 16px;
    accent-color: var(--accent-general);
}

.tool-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    font: 500 0.82rem 'JetBrains Mono', monospace;
    text-decoration: none;
    transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease;
}

.tool-btn:hover:not(:disabled) {
    border-color: var(--accent-general);
    background: var(--bg-primary);
}

.tool-btn.primary {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(59, 130, 246, 0.12);
}

.tool-btn.compact {
    width: 100%;
    padding: 9px 12px;
}

.tool-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.action-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.advanced-details {
    margin-top: 12px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
}

.advanced-details summary {
    cursor: pointer;
    list-style: none;
    padding: 12px 14px;
    font-weight: 600;
    font-size: 0.88rem;
}

.advanced-details summary::-webkit-details-marker {
    display: none;
}

.advanced-details[open] summary {
    border-bottom: 1px solid var(--border-color);
}

.advanced-details > div,
.advanced-details > p {
    margin: 0;
    padding: 14px;
}

.conditional-group {
    display: none;
    margin-top: 12px;
}

.conditional-group.is-active {
    display: block;
}

.status-banner,
.preview-note {
    border-radius: 12px;
    padding: 12px 14px;
    font-size: 0.84rem;
    line-height: 1.55;
    margin-bottom: 14px;
}

.status-banner {
    display: none;
    border: 1px solid rgba(59, 130, 246, 0.28);
    background: rgba(59, 130, 246, 0.08);
    color: var(--text-primary);
}

.status-banner.is-warning {
    display: block;
    border-color: rgba(234, 179, 8, 0.35);
    background: rgba(234, 179, 8, 0.09);
}

.status-banner.is-error {
    display: block;
    border-color: rgba(239, 68, 68, 0.32);
    background: rgba(239, 68, 68, 0.08);
}

.status-banner.is-info {
    display: block;
}

.preview-note {
    border: 1px solid var(--border-color);
    background: var(--bg-secondary);
    color: var(--text-secondary);
}

.preview-stage-shell {
    overflow: auto;
    min-height: 720px;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background:
        linear-gradient(180deg, rgba(255,255,255,0.02), rgba(0,0,0,0.02)),
        repeating-linear-gradient(
            45deg,
            rgba(127, 127, 127, 0.035),
            rgba(127, 127, 127, 0.035) 10px,
            transparent 10px,
            transparent 20px
        );
    padding: 24px;
}

.preview-stage {
    --preview-scale: 0.75;
    --sheet-width: 8.5in;
    --sheet-height: 11in;
    text-align: center;
}

.preview-pages {
    display: inline-grid;
    gap: 24px;
    transform: scale(var(--preview-scale));
    transform-origin: top center;
}

.preview-empty {
    max-width: 560px;
    margin: 48px auto;
    padding: 32px 28px;
    text-align: center;
    border: 1px dashed var(--border-color);
    border-radius: 16px;
    background: rgba(127, 127, 127, 0.04);
}

.preview-empty h3 {
    margin: 0 0 10px;
}

.preview-empty p {
    margin: 0;
    color: var(--text-secondary);
    line-height: 1.6;
}

.planner-sheet {
    width: var(--sheet-width);
    height: var(--sheet-height);
    background: #fff;
    color: #111827;
    box-shadow: var(--planner-paper-shadow);
    border-radius: 8px;
    padding: 0.12in 0.15in 0.12in;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 0.06in;
    box-sizing: border-box;
    overflow: hidden;
}

.planner-sheet.compact {
    font-size: 0.9em;
}

.planner-sheet.is-writing-only {
    padding-top: 0.1in;
    padding-bottom: 0.1in;
}

.planner-sheet.no-header {
    padding-top: 0.08in;
}

.planner-sheet.no-footer {
    padding-bottom: 0.08in;
}

.planner-sheet__header {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    align-items: flex-start;
    border-bottom: 2px solid #111827;
    padding-bottom: 0.05in;
}

.planner-sheet__title {
    margin: 0;
    font: 700 15pt 'Space Grotesk', sans-serif;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}

.planner-sheet__meta,
.planner-sheet__page {
    font: 500 8pt 'JetBrains Mono', monospace;
    color: #374151;
}

.planner-sheet__page {
    white-space: nowrap;
}

.planner-day-grid {
    display: grid;
    flex: 1;
    min-height: 0;
    gap: 0;
    grid-auto-rows: minmax(0, 1fr);
    border: 1px solid #cbd5e1;
    border-right: 0;
    border-bottom: 0;
    border-radius: 6px;
    overflow: hidden;
}

.planner-day {
    border-right: 1px solid #cbd5e1;
    border-bottom: 1px solid #cbd5e1;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: #fff;
}

.planner-day__header {
    border-bottom: 1px solid #111827;
    padding: 0.045in 0.06in 0.04in;
    margin-bottom: 0;
    background: #f8fafc;
}

.planner-day__title {
    margin: 0;
    font: 700 10pt 'Space Grotesk', sans-serif;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.planner-day__date {
    margin-top: 0.01in;
    font: 500 7.5pt 'JetBrains Mono', monospace;
    color: #4b5563;
}

.planner-rows {
    display: flex;
    flex-direction: column;
    gap: 0;
    flex: 1;
    padding: 0 0.04in 0.01in;
}

.planner-row {
    display: grid;
    grid-template-columns: 0.23in minmax(0, 1fr);
    align-items: stretch;
    min-height: var(--row-height, 0.18in);
    border-bottom: 1px solid #d1d5db;
}

.planner-sheet.compact .planner-row {
    min-height: var(--row-height, 0.15in);
}

.planner-sheet.compact .planner-row {
    grid-template-columns: 0.19in minmax(0, 1fr);
}

.planner-time {
    font: 500 5.8pt 'JetBrains Mono', monospace;
    color: #111827;
    padding: 0.02in 0.01in 0 0;
    text-align: left;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    letter-spacing: 0.01em;
}

.planner-time.is-hour {
    font-weight: 700;
    font-size: 7pt;
}

.planner-time.is-minute {
    color: #4b5563;
}

.planner-sheet.compact .planner-time {
    padding-right: 0.008in;
    font-size: 5.2pt;
}

.planner-sheet.compact .planner-time.is-hour {
    font-size: 6.2pt;
}

.planner-write {
    min-height: 100%;
    display: grid;
    align-content: stretch;
}

.planner-guide-line {
    display: block;
    border-bottom: 0;
}

.planner-guide-line.is-visible {
    border-bottom: 1px solid #e5e7eb;
}

.planner-guide-line.is-last {
    border-bottom-color: transparent;
}

.planner-sheet__footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    gap: 16px;
    border-top: 1px solid #d1d5db;
    padding-top: 0.04in;
    font: 500 7.5pt 'JetBrains Mono', monospace;
    color: #4b5563;
    align-items: flex-end;
}

.planner-sheet__footer-left {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.planner-sheet__footer-right {
    flex: 0 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.05in;
    justify-content: flex-end;
    min-height: 0.14in;
    min-width: 1.6in;
}

.planner-sheet__footer-line {
    width: 100%;
    height: 0.03in;
    border-bottom: 1px solid #d1d5db;
}

.planner-sheet__footer-copy {
    white-space: nowrap;
}

.sidebar-stack {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

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

.stat-card {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-secondary);
    padding: 14px;
}

.stat-card .label {
    display: block;
    margin-bottom: 6px;
    font-size: 0.76rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.stat-card .value {
    display: block;
    font: 700 1.05rem 'JetBrains Mono', monospace;
    color: var(--text-primary);
}

.saved-plan-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.saved-plan-empty {
    padding: 16px;
    border: 1px dashed var(--border-color);
    border-radius: 12px;
    color: var(--text-secondary);
    text-align: center;
    font-size: 0.88rem;
}

.saved-plan-item {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px;
    background: var(--bg-secondary);
}

.saved-plan-item h3 {
    margin: 0 0 6px;
    font-size: 0.92rem;
}

.saved-plan-meta {
    margin: 0 0 10px;
    color: var(--text-secondary);
    font-size: 0.8rem;
    line-height: 1.45;
}

.saved-plan-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.saved-plan-actions .tool-btn {
    flex: 1 1 120px;
}

.saved-plan-actions .danger {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.3);
}

.saved-plan-actions .danger:hover:not(:disabled) {
    background: rgba(239, 68, 68, 0.08);
    border-color: rgba(239, 68, 68, 0.45);
}

@media (max-width: 1400px) {
    .planner-layout {
        grid-template-columns: 320px minmax(0, 1fr);
    }

    .sidebar-stack {
        grid-column: 1 / -1;
        flex-direction: row;
        flex-wrap: wrap;
    }

    .sidebar-panel {
        flex: 1 1 320px;
    }
}

@media (max-width: 980px) {
    .planner-layout {
        grid-template-columns: 1fr;
    }

    .field-grid,
    .field-grid.three,
    .preset-grid,
    .stat-grid,
    .day-grid {
        grid-template-columns: 1fr;
    }

    .preview-stage-shell {
        min-height: 520px;
        padding: 16px;
    }
}

@media print {
    html,
    body {
        background: #fff !important;
    }

    .container {
        max-width: none !important;
        padding: 0 !important;
    }

    .container > header,
    .control-panel,
    .sidebar-stack,
    .preview-heading,
    .status-banner,
    .preview-note,
    footer[data-footer] {
        display: none !important;
    }

    .planner-layout,
    .preview-panel {
        display: block !important;
        border: 0 !important;
        padding: 0 !important;
        margin: 0 !important;
        background: transparent !important;
    }

    .preview-stage-shell {
        overflow: visible !important;
        padding: 0 !important;
        margin: 0 !important;
        border: 0 !important;
        background: transparent !important;
        min-height: 0 !important;
    }

    .preview-stage {
        text-align: left !important;
    }

    .preview-pages {
        display: block !important;
        transform: none !important;
    }

    .planner-sheet {
        width: auto !important;
        height: auto !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        margin: 0 !important;
        page-break-after: always;
        break-after: page;
        overflow: visible !important;
    }

    .planner-sheet:last-child {
        page-break-after: auto;
        break-after: auto;
    }

    .planner-sheet__footer-right .planner-sheet__footer-line {
        border-bottom: 1px solid #d1d5db;
    }
}