/* ==========================================================================
   PupilCheck v2.0 - Patient History Styles
   history.css
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Screen Reader Only (Utility)
   -------------------------------------------------------------------------- */

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   2. Navigation Bar
   -------------------------------------------------------------------------- */

.history-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.history-nav-back {
    text-decoration: none;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

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

.history-nav-actions .btn {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
}

/* --------------------------------------------------------------------------
   3. Summary Stats
   -------------------------------------------------------------------------- */

.history-stats {
    display: flex;
    gap: 10px;
    margin-bottom: 16px;
}

.stat-chip {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 12px;
    text-align: center;
    transition: background var(--transition-normal);
}

.stat-chip-value {
    display: block;
    font-size: 22px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--primary-light);
    line-height: 1.2;
}

.stat-chip-label {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 2px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* --------------------------------------------------------------------------
   4. Search Bar
   -------------------------------------------------------------------------- */

.search-bar {
    position: relative;
    margin-bottom: 12px;
}

.search-bar input {
    width: 100%;
    padding: 12px 40px 12px 38px;
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
    min-height: 44px;
}

.search-bar input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}

.search-bar input::placeholder {
    color: var(--text-muted);
}

.search-bar-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

.search-bar-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.search-bar-clear:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--text);
}

.search-bar-clear:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* --------------------------------------------------------------------------
   5. Sort Controls
   -------------------------------------------------------------------------- */

.history-sort {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.sort-btn {
    flex: 1;
    padding: 8px 10px;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    background: var(--surface);
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    min-height: 36px;
    text-align: center;
}

.sort-btn:hover {
    background: var(--surface-elevated);
    color: var(--text);
}

.sort-btn.active {
    border-color: var(--primary);
    color: var(--text);
    background: rgba(233, 69, 96, 0.12);
}

.sort-btn:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* --------------------------------------------------------------------------
   6. Patient Card
   -------------------------------------------------------------------------- */

.patient-card {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: all var(--transition-normal);
    outline: none;
}

.patient-card:hover {
    border-color: rgba(233, 69, 96, 0.35);
    background: var(--surface-elevated);
    box-shadow: var(--shadow-sm);
}

.patient-card:active {
    transform: scale(0.99);
}

.patient-card:focus-visible {
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
}

.patient-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.patient-card-name {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.3;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    margin-right: 8px;
}

.patient-card-meta {
    flex-shrink: 0;
}

.patient-card-detail {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.patient-card-ratios {
    font-size: 13px;
    color: var(--text);
    font-variant-numeric: tabular-nums;
    font-weight: 500;
    margin-top: 4px;
}

.ratio-label {
    font-size: 11px;
    font-weight: 700;
    margin-right: 2px;
}

.ratio-label.ratio-left {
    color: var(--info);
}

.ratio-label.ratio-right {
    color: var(--warning);
}

.ratio-divider {
    margin: 0 8px;
    color: var(--text-muted);
    opacity: 0.4;
}

.patient-card-footer {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--border-subtle);
}

.patient-card-created {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.7;
}

/* --------------------------------------------------------------------------
   7. Empty State
   -------------------------------------------------------------------------- */

.empty-state {
    text-align: center;
    padding: 48px 16px;
}

.empty-state-title {
    margin-top: 16px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

.empty-state-desc {
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-muted);
    line-height: 1.5;
}

.empty-state-btn {
    margin-top: 20px;
    max-width: 240px;
    margin-left: auto;
    margin-right: auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
}

/* --------------------------------------------------------------------------
   8. Modal Overrides (History-specific)
   -------------------------------------------------------------------------- */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 300;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.modal {
    position: relative;
    background: var(--surface-elevated);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    max-width: 420px;
    width: 100%;
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.25s ease;
    max-height: 85vh;
    overflow-y: auto;
    display: block;
}

.modal-large {
    max-width: 560px;
    max-height: 90vh;
}

.modal-confirm {
    max-width: 360px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 20px 12px;
    border-bottom: 1px solid var(--border-subtle);
    position: sticky;
    top: 0;
    background: var(--surface-elevated);
    z-index: 1;
    border-radius: var(--radius) var(--radius) 0 0;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    margin-right: 8px;
}

.modal-close {
    flex-shrink: 0;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 6px;
    transition: background var(--transition-fast), color var(--transition-fast);
    line-height: 1;
    min-width: 44px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
}

.modal-close:focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.modal-body {
    padding: 16px 20px 20px;
}

/* --------------------------------------------------------------------------
   9. Patient Actions (inside modal)
   -------------------------------------------------------------------------- */

.patient-actions {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.patient-actions .btn {
    min-height: 40px;
    display: inline-flex;
    align-items: center;
}

.btn-danger-outline {
    color: var(--danger);
    border: 1px solid rgba(255, 71, 87, 0.3);
    background: transparent;
}

.btn-danger-outline:hover {
    background: rgba(255, 71, 87, 0.1);
    border-color: rgba(255, 71, 87, 0.5);
}

/* --------------------------------------------------------------------------
   10. Trend Chart
   -------------------------------------------------------------------------- */

.trend-chart-container {
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 14px;
    margin-bottom: 16px;
}

.trend-chart-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
}

.trend-chart-legend {
    display: flex;
    gap: 16px;
    margin-bottom: 10px;
    font-size: 11px;
}

.trend-legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
    color: var(--text-muted);
}

.trend-legend-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

/* --------------------------------------------------------------------------
   11. Timeline Header
   -------------------------------------------------------------------------- */

.timeline-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-subtle);
}

.timeline-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    display: flex;
    align-items: center;
}

.timeline-count {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.7;
}

/* --------------------------------------------------------------------------
   12. Measurement Item
   -------------------------------------------------------------------------- */

.measurements-list {
    position: relative;
}

.measurements-empty {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-muted);
    font-size: 13px;
}

.measurement-item {
    display: flex;
    gap: 12px;
    margin-bottom: 2px;
    position: relative;
}

.measurement-timeline-dot {
    flex-shrink: 0;
    width: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 16px;
}

.timeline-dot {
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--text-muted);
    border: 2px solid var(--surface-elevated);
    box-shadow: 0 0 0 2px var(--border-subtle);
    position: relative;
    z-index: 1;
}

.timeline-dot-normal {
    background: var(--success);
    box-shadow: 0 0 0 2px rgba(46, 213, 115, 0.2);
}

.timeline-dot-mild {
    background: var(--warning);
    box-shadow: 0 0 0 2px rgba(255, 165, 2, 0.2);
}

.timeline-dot-significant {
    background: var(--danger);
    box-shadow: 0 0 0 2px rgba(255, 71, 87, 0.2);
}

/* Timeline connecting line */
.measurement-item:not(:last-child) .measurement-timeline-dot::after {
    content: '';
    display: block;
    width: 2px;
    flex: 1;
    background: var(--border-subtle);
    margin-top: 4px;
}

.measurement-item-content {
    flex: 1;
    background: var(--surface);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius);
    padding: 12px 14px;
    margin-bottom: 8px;
    min-width: 0;
    transition: border-color var(--transition-fast);
}

.measurement-item-content:hover {
    border-color: rgba(255, 255, 255, 0.12);
}

.measurement-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 10px;
}

.measurement-date {
    font-size: 12px;
    color: var(--text-muted);
    font-weight: 500;
}

.measurement-mode {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.7;
    margin-top: 1px;
}

.measurement-item-data {
    display: flex;
    gap: 12px;
    margin-bottom: 8px;
}

.measurement-eye {
    display: flex;
    gap: 8px;
    align-items: center;
    flex: 1;
    min-width: 0;
}

.measurement-thumb {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
    border: 1px solid var(--border-subtle);
    flex-shrink: 0;
    background: var(--bg);
}

.measurement-eye-values {
    min-width: 0;
}

.measurement-eye-label {
    font-size: 11px;
    font-weight: 600;
    line-height: 1;
    margin-bottom: 2px;
}

.measurement-eye-ratio {
    font-size: 17px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    line-height: 1.3;
}

.measurement-eye-mm {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1;
}

.measurement-diff {
    font-size: 12px;
    color: var(--text-muted);
    padding: 6px 0;
    border-top: 1px solid var(--border-subtle);
    font-variant-numeric: tabular-nums;
}

.rapd-flag {
    display: inline-block;
    padding: 1px 5px;
    border-radius: 4px;
    background: rgba(255, 71, 87, 0.15);
    color: var(--danger);
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.5px;
    vertical-align: middle;
    margin-left: 4px;
}

.measurement-notes {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 6px;
    padding: 8px 10px;
    background: var(--bg);
    border-radius: 8px;
    border: 1px solid var(--border-subtle);
    line-height: 1.5;
    white-space: pre-wrap;
    word-break: break-word;
}

.measurement-actions {
    display: flex;
    gap: 6px;
    margin-top: 10px;
    padding-top: 8px;
    border-top: 1px solid var(--border-subtle);
}

.measurement-action-btn {
    font-size: 11px !important;
    padding: 6px 10px !important;
    min-height: 32px !important;
    display: inline-flex !important;
    align-items: center;
    gap: 3px;
}

/* --------------------------------------------------------------------------
   13. Import Dialog
   -------------------------------------------------------------------------- */

.import-textarea {
    width: 100%;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    padding: 12px;
    font-size: 13px;
    font-family: var(--font-mono);
    resize: vertical;
    outline: none;
    transition: border-color var(--transition-normal);
    min-height: 100px;
}

.import-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.15);
}

.import-textarea::placeholder {
    color: var(--text-muted);
}

.import-actions {
    display: flex;
    gap: 10px;
    margin-top: 12px;
    align-items: center;
}

.import-file-label {
    cursor: pointer;
    display: inline-flex !important;
    align-items: center;
    min-height: 40px;
}

.import-file-label:focus-visible,
.import-file-label:focus-within {
    outline: none;
    box-shadow: var(--focus-ring);
}

/* --------------------------------------------------------------------------
   14. Badge Variants (assessment colors)
   -------------------------------------------------------------------------- */

/* badge-normal, badge-mild, badge-significant are in components.css */

/* --------------------------------------------------------------------------
   15. Storage Warning (Danger variant)
   -------------------------------------------------------------------------- */

.tip-box-danger {
    background: rgba(255, 71, 87, 0.1);
    border-color: rgba(255, 71, 87, 0.3);
}

.tip-box-danger strong {
    color: var(--danger);
}

/* --------------------------------------------------------------------------
   16. High Contrast Overrides
   -------------------------------------------------------------------------- */

@media (prefers-contrast: high) {
    .patient-card {
        border-width: 2px;
    }

    .measurement-item-content {
        border-width: 2px;
    }

    .timeline-dot {
        border-width: 3px;
    }

    .sort-btn {
        border-width: 2px;
    }

    .search-bar input {
        border-width: 2px;
    }

    .badge-normal,
    .badge-mild,
    .badge-significant {
        font-weight: 800;
    }
}

/* --------------------------------------------------------------------------
   17. Reduced Motion
   -------------------------------------------------------------------------- */

@media (prefers-reduced-motion: reduce) {
    .patient-card,
    .measurement-item-content,
    .sort-btn,
    .search-bar input {
        transition: none;
    }

    .patient-card:active {
        transform: none;
    }
}

/* --------------------------------------------------------------------------
   18. Responsive - Small Screens
   -------------------------------------------------------------------------- */

@media (max-width: 400px) {
    .history-nav {
        flex-direction: column;
        align-items: stretch;
    }

    .history-nav-actions {
        justify-content: flex-end;
    }

    .modal-large {
        max-width: 100%;
        max-height: 95vh;
        border-radius: var(--radius) var(--radius) 0 0;
        margin-top: auto;
    }

    .measurement-item-data {
        flex-direction: column;
        gap: 8px;
    }

    .patient-actions {
        gap: 6px;
    }

    .patient-actions .btn {
        font-size: 12px;
        padding: 8px 10px;
    }

    .stat-chip-value {
        font-size: 18px;
    }
}

@media (max-width: 360px) {
    .history-nav-actions .btn span {
        display: none;
    }

    .history-nav-actions .btn svg {
        margin-right: 0;
    }

    .measurement-eye-ratio {
        font-size: 15px;
    }

    .measurement-thumb {
        width: 40px;
        height: 40px;
    }

    .sort-btn {
        padding: 6px 4px;
        font-size: 11px;
    }
}

/* --------------------------------------------------------------------------
   19. Print Styles
   -------------------------------------------------------------------------- */

@media print {
    .history-nav,
    .search-bar,
    .history-sort,
    .patient-actions,
    .measurement-actions,
    .empty-state-btn,
    .modal-overlay,
    #storageWarning {
        display: none !important;
    }

    .patient-card {
        break-inside: avoid;
        border: 1px solid #ccc;
        background: white;
        color: #333;
    }

    .stat-chip {
        border: 1px solid #ccc;
        background: #f5f5f5;
    }

    .stat-chip-value {
        color: #333;
    }

    .stat-chip-label {
        color: #666;
    }
}