/* ==========================================================================
   Prior Notes Panel - Note Selection for Carry-Forward (2025-12-27)
   Progress Note Carry-Forward Feature
   ENHANCED (2026-01-10): Cross-patient search + full preview (2-column layout)

   ARCHITECTURE: Right sliding panel following Problem Detail Panel pattern
   WHY: Consistent UI for auxiliary panels, enables note template selection
   TRADEOFF: Duplicates some patterns vs DRY, but maintains independence
   ========================================================================== */

/* Panel container - slides in from right */
/* ENHANCED: Widened for 2-column layout with preview */
.prior-notes-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 780px;
    max-width: 95vw;
    z-index: 1001;
    pointer-events: none;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.2s ease, transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.prior-notes-panel.visible {
    pointer-events: auto;
    opacity: 1;
    transform: translateX(0);
}

/* Backdrop */
.prior-notes-panel-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    z-index: -1;
}

/* Main content area */
.pnp-content {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    background: var(--sol-bg-elevated, #1c1f2a);
    border-left: 1px solid var(--sol-border, rgba(255, 255, 255, 0.1));
    display: flex;
    flex-direction: column;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.35);
}

/* ==========================================================================
   Header Section
   ========================================================================== */

.pnp-header {
    padding: 18px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
    background: linear-gradient(180deg, rgba(96, 165, 250, 0.08) 0%, transparent 100%);
}

.pnp-header-main {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 12px;
}

.pnp-header-info {
    flex: 1;
}

.pnp-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--sol-text-primary, #f8fafc);
    margin: 0 0 4px;
    line-height: 1.3;
}

.pnp-patient-name {
    font-size: 0.8125rem;
    color: var(--sol-text-secondary, #94a3b8);
}

.pnp-close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    color: var(--sol-text-secondary, #94a3b8);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.pnp-close:hover {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.pnp-header-meta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pnp-note-count {
    font-size: 0.75rem;
    color: var(--sol-text-tertiary, #64748b);
}

/* Filter tabs */
.pnp-filter-tabs {
    display: flex;
    gap: 4px;
    margin-left: auto;
}

.pnp-filter-tab {
    padding: 5px 10px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--sol-text-tertiary, #64748b);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid transparent;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pnp-filter-tab:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--sol-text-secondary, #94a3b8);
}

.pnp-filter-tab.active {
    background: rgba(96, 165, 250, 0.15);
    border-color: rgba(96, 165, 250, 0.3);
    color: #60a5fa;
}

/* ==========================================================================
   Search Bar (2026-01-10)
   ========================================================================== */

.pnp-search-row {
    display: flex;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(0, 0, 0, 0.15);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.pnp-search-input-wrap {
    flex: 1;
    position: relative;
}

.pnp-search-input {
    width: 100%;
    padding: 10px 12px 10px 36px;
    font-size: 0.875rem;
    color: var(--sol-text-primary, #f8fafc);
    background: var(--sol-bg-surface, #0f1219);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    outline: none;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.pnp-search-input:focus {
    border-color: rgba(96, 165, 250, 0.5);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.15);
}

.pnp-search-input::placeholder {
    color: var(--sol-text-tertiary, #64748b);
}

.pnp-search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--sol-text-tertiary, #64748b);
    pointer-events: none;
}

/* Mode toggle button */
.pnp-mode-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--sol-text-secondary, #94a3b8);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.pnp-mode-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--sol-text-primary, #f8fafc);
}

.pnp-mode-toggle.active {
    background: rgba(168, 85, 247, 0.15);
    border-color: rgba(168, 85, 247, 0.4);
    color: #c4b5fd;
}

.pnp-mode-toggle svg {
    flex-shrink: 0;
}

/* ==========================================================================
   Body Section - Two-Column Layout (2026-01-10)
   ========================================================================== */

.pnp-body {
    flex: 1;
    display: grid;
    grid-template-columns: 340px 1fr;
    min-height: 0;
    overflow: hidden;
}

/* Notes list column */
.pnp-notes-column {
    overflow-y: auto;
    padding: 16px;
    border-right: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(0, 0, 0, 0.1);
}

/* Preview column */
.pnp-preview-column {
    overflow-y: auto;
    padding: 20px;
    background: var(--sol-bg-surface, #0f1219);
}

/* Legacy single-column fallback */
.pnp-body.single-column {
    grid-template-columns: 1fr;
}

.pnp-body.single-column .pnp-notes-column {
    border-right: none;
}

.pnp-body.single-column .pnp-preview-column {
    display: none;
}

/* Loading state */
.pnp-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px 20px;
    color: var(--sol-text-tertiary, #64748b);
}

.pnp-spinner {
    width: 32px;
    height: 32px;
    border: 3px solid rgba(96, 165, 250, 0.2);
    border-top-color: #60a5fa;
    border-radius: 50%;
    animation: pnp-spin 0.8s linear infinite;
}

@keyframes pnp-spin {
    to { transform: rotate(360deg); }
}

/* Empty state */
.pnp-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 50px 20px;
    text-align: center;
    color: var(--sol-text-tertiary, #64748b);
}

.pnp-empty svg {
    opacity: 0.3;
}

.pnp-empty p {
    margin: 0;
    font-size: 0.875rem;
}

/* Notes list */
.pnp-notes-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* ==========================================================================
   Note Card
   ========================================================================== */

.pnp-note-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 10px;
    padding: 14px 16px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.pnp-note-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.1);
}

.pnp-note-card:focus {
    outline: 2px solid rgba(96, 165, 250, 0.5);
    outline-offset: 2px;
}

.pnp-note-card.selected {
    background: rgba(96, 165, 250, 0.12);
    border-color: rgba(96, 165, 250, 0.4);
}

.pnp-note-card.selected:hover {
    background: rgba(96, 165, 250, 0.15);
}

/* Card header */
.pnp-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

/* Type badges */
.pnp-type-badge {
    font-size: 0.625rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
    color: var(--sol-text-secondary, #94a3b8);
}

.pnp-type-badge.type-progress {
    background: rgba(34, 197, 94, 0.2);
    color: #86efac;
}

.pnp-type-badge.type-hp {
    background: rgba(59, 130, 246, 0.2);
    color: #93c5fd;
}

.pnp-type-badge.type-discharge {
    background: rgba(168, 85, 247, 0.2);
    color: #c4b5fd;
}

.pnp-type-badge.type-cheatsheet {
    background: rgba(245, 158, 11, 0.2);
    color: #fcd34d;
}

.pnp-type-badge.type-brief {
    background: rgba(236, 72, 153, 0.2);
    color: #f9a8d4;
}

.pnp-type-badge.type-transfer {
    background: rgba(20, 184, 166, 0.2);
    color: #5eead4;
}

/* Imported source badge (2026-01-10) */
.pnp-source-badge {
    font-size: 0.5625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 2px 6px;
    border-radius: 3px;
    margin-left: 6px;
}

.pnp-source-badge.imported {
    background: rgba(251, 191, 36, 0.2);
    color: #fcd34d;
    border: 1px solid rgba(251, 191, 36, 0.3);
}

/* Cross-patient warning badge on card (2026-01-11) */
.pnp-source-badge.cross-patient {
    background: rgba(239, 68, 68, 0.15);
    color: #fca5a5;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Card date */
.pnp-card-date {
    font-size: 0.75rem;
    color: var(--sol-text-tertiary, #64748b);
}

/* Card patient name (global mode) */
.pnp-card-patient {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--sol-text-secondary, #94a3b8);
    margin-bottom: 4px;
}

/* Cross-patient card indicator */
.pnp-note-card.cross-patient {
    border-left: 3px solid rgba(251, 191, 36, 0.5);
}

/* Card title */
.pnp-card-title {
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--sol-text-primary, #f8fafc);
    margin-bottom: 6px;
    line-height: 1.3;
}

/* Card preview */
.pnp-card-preview {
    font-size: 0.8125rem;
    line-height: 1.5;
    color: var(--sol-text-secondary, #94a3b8);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card metadata */
.pnp-card-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.pnp-meta-item {
    font-size: 0.6875rem;
    color: var(--sol-text-tertiary, #64748b);
    background: rgba(255, 255, 255, 0.04);
    padding: 2px 6px;
    border-radius: 3px;
}

/* ==========================================================================
   Preview Pane (2026-01-10)
   ========================================================================== */

.pnp-preview-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    gap: 16px;
    color: var(--sol-text-tertiary, #64748b);
    text-align: center;
    padding: 40px 20px;
}

.pnp-preview-empty svg {
    opacity: 0.3;
}

.pnp-preview-empty p {
    margin: 0;
    font-size: 0.875rem;
}

.pnp-preview-header {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
    padding-bottom: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.pnp-preview-type {
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 4px 10px;
    border-radius: 4px;
    background: rgba(96, 165, 250, 0.15);
    color: #60a5fa;
}

.pnp-preview-patient {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--sol-text-primary, #f8fafc);
}

.pnp-preview-date {
    font-size: 0.75rem;
    color: var(--sol-text-tertiary, #64748b);
    margin-left: auto;
}

.pnp-preview-content {
    font-family: var(--font-mono, 'SF Mono', 'Fira Code', 'Monaco', monospace);
    font-size: 0.8rem;
    line-height: 1.6;
    color: var(--sol-text-secondary, #94a3b8);
    white-space: pre-wrap;
    word-wrap: break-word;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 16px;
    margin: 0;
    max-height: calc(100vh - 340px);
    overflow-y: auto;
}

/* Cross-patient warning banner */
.pnp-cross-patient-warning {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 14px;
    margin-bottom: 16px;
    background: rgba(251, 191, 36, 0.12);
    border: 1px solid rgba(251, 191, 36, 0.3);
    border-radius: 8px;
    font-size: 0.8125rem;
    line-height: 1.5;
    color: #fcd34d;
}

.pnp-cross-patient-warning svg {
    flex-shrink: 0;
    margin-top: 2px;
}

.pnp-cross-patient-warning p {
    margin: 0;
}

.pnp-cross-patient-warning strong {
    color: #fef3c7;
}

/* ==========================================================================
   Footer Section
   ========================================================================== */

.pnp-footer {
    padding: 16px 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    background: rgba(0, 0, 0, 0.2);
    flex-shrink: 0;
}

.pnp-footer-info {
    flex: 1;
    min-width: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pnp-selected-label {
    font-size: 0.75rem;
    color: var(--sol-text-tertiary, #64748b);
    flex-shrink: 0;
}

.pnp-selected-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--sol-text-primary, #f8fafc);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.pnp-hint {
    font-size: 0.8125rem;
    color: var(--sol-text-tertiary, #64748b);
    font-style: italic;
}

/* Cross-patient badge in footer */
.pnp-cross-patient-badge {
    font-size: 0.625rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    padding: 3px 8px;
    border-radius: 4px;
    background: rgba(251, 191, 36, 0.15);
    border: 1px solid rgba(251, 191, 36, 0.3);
    color: #fcd34d;
    margin-left: 8px;
}

/* Use as Template button */
.pnp-use-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 0.875rem;
    font-weight: 600;
    color: #fff;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.pnp-use-btn:hover:not(.disabled) {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.pnp-use-btn:active:not(.disabled) {
    transform: translateY(0);
}

.pnp-use-btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background: rgba(255, 255, 255, 0.1);
    color: var(--sol-text-tertiary, #64748b);
}

.pnp-use-btn svg {
    flex-shrink: 0;
}

/* ==========================================================================
   Scrollbar
   ========================================================================== */

.pnp-notes-column::-webkit-scrollbar,
.pnp-preview-column::-webkit-scrollbar,
.pnp-preview-content::-webkit-scrollbar {
    width: 6px;
}

.pnp-notes-column::-webkit-scrollbar-track,
.pnp-preview-column::-webkit-scrollbar-track,
.pnp-preview-content::-webkit-scrollbar-track {
    background: transparent;
}

.pnp-notes-column::-webkit-scrollbar-thumb,
.pnp-preview-column::-webkit-scrollbar-thumb,
.pnp-preview-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}

.pnp-notes-column::-webkit-scrollbar-thumb:hover,
.pnp-preview-column::-webkit-scrollbar-thumb:hover,
.pnp-preview-content::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* ==========================================================================
   Accessibility & Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .prior-notes-panel {
        transition: opacity 0.1s ease;
        transform: translateX(0);
    }

    .prior-notes-panel:not(.visible) {
        visibility: hidden;
    }

    .pnp-spinner {
        animation-duration: 1.5s;
    }
}

/* ==========================================================================
   Responsive - Smaller Screens
   ========================================================================== */

/* Medium screens: collapse to single column */
@media (max-width: 900px) {
    .prior-notes-panel {
        width: 480px;
    }

    .pnp-body {
        grid-template-columns: 1fr;
    }

    .pnp-notes-column {
        border-right: none;
    }

    .pnp-preview-column {
        display: none;
    }

    /* Show preview inline in card when selected */
    .pnp-note-card.selected .pnp-card-preview-full {
        display: block;
    }
}

@media (max-width: 768px) {
    .prior-notes-panel {
        width: 100%;
        max-width: none;
    }

    .pnp-search-row {
        flex-direction: column;
        gap: 8px;
    }

    .pnp-mode-toggle {
        width: 100%;
        justify-content: center;
    }

    .pnp-header-meta {
        flex-wrap: wrap;
    }

    .pnp-filter-tabs {
        margin-left: 0;
        width: 100%;
        margin-top: 10px;
    }

    .pnp-footer {
        flex-direction: column;
        gap: 12px;
    }

    .pnp-footer-info {
        width: 100%;
        justify-content: center;
    }

    .pnp-use-btn {
        width: 100%;
        justify-content: center;
    }
}