/* === iOS-inspired Global Refinements === */

:root {
    --ios-blue: #007aff;
    --ios-gray: #8e8e93;
    --ios-light-gray: #f2f2f7;
    --ios-separator: rgba(60, 60, 67, 0.12);
    --ios-shadow: 0 2px 16px rgba(0, 0, 0, 0.08);
    --ios-shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
    --ios-radius: 12px;
    --ios-radius-sm: 8px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background: var(--ios-light-gray);
    color: #1d1d1f;
}

/* Softer, pill-shaped buttons */
button, [role="button"], input[type="submit"] {
    border-radius: 20px !important;
    font-weight: 500;
    letter-spacing: -0.01em;
    transition: all 0.2s ease;
}
button:hover, [role="button"]:hover {
    transform: translateY(-0.5px);
}

button.outline {
    background: transparent;
    border: 1px solid var(--ios-separator);
}

/* iOS-style inputs */
input[type="text"], input[type="search"], input[type="range"] {
    border-radius: var(--ios-radius-sm);
    border: 1px solid var(--ios-separator);
    background: #fff;
    transition: border-color 0.2s, box-shadow 0.2s;
}
input[type="text"]:focus, input[type="search"]:focus {
    border-color: var(--ios-blue);
    box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
    outline: none;
}

/* Cards & containers */
article, .card {
    border-radius: var(--ios-radius);
    box-shadow: var(--ios-shadow);
    background: #fff;
    border: none;
}

/* Tables */
table {
    border-radius: var(--ios-radius);
    overflow: hidden;
    box-shadow: var(--ios-shadow);
}
thead th {
    background: #f9f9fb;
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--ios-gray);
}

/* Links */
a {
    color: var(--ios-blue);
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}

/* === App-specific Styles === */

.upload-zone {
    border: 2px dashed var(--ios-separator);
    border-radius: var(--ios-radius);
    padding: 2.5rem;
    text-align: center;
    transition: border-color 0.25s, background 0.25s, transform 0.25s;
    margin-bottom: 1.5rem;
    background: #fff;
}
.upload-zone:hover {
    border-color: var(--ios-blue);
    transform: translateY(-1px);
}

.upload-zone.dragover {
    border-color: var(--ios-blue);
    background: rgba(0, 122, 255, 0.06);
}

.upload-form p {
    margin: 0 0 0.75rem 0;
    color: var(--pico-muted-color, #888);
}

.pdf-table {
    width: 100%;
}

.flash-success {
    --pico-background-color: #e8f5e9;
    --pico-color: #2e7d32;
}

.flash-error {
    --pico-background-color: #ffebee;
    --pico-color: #c62828;
}

.flash-info {
    --pico-background-color: #e3f2fd;
    --pico-color: #1565c0;
}

/* Context slider */
.context-slider-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 0;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--pico-muted-border-color, #ddd);
    flex-wrap: wrap;
}

.context-slider-bar label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0;
    min-width: 300px;
}

.context-slider-bar input[type="range"] {
    flex: 1;
    max-width: 300px;
}

/* File groups */
.file-group-controls {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.file-group {
    border: 1px solid var(--ios-separator);
    border-radius: var(--ios-radius);
    margin-bottom: 0.75rem;
    overflow: hidden;
    box-shadow: var(--ios-shadow);
}

.file-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    cursor: pointer;
    background: #fff;
    font-weight: 600;
    user-select: none;
    transition: background 0.15s;
}

.file-group-header:hover {
    background: #f5f5f7;
}

.file-group-header:hover::marker {
    text-shadow: 0 0 6px rgba(65, 105, 225, 0.8), 0 0 10px rgba(65, 105, 225, 0.5);
}

.thumb-toggle-group {
    cursor: pointer;
    font-size: 1.1rem;
    opacity: 0.65;
    transition: opacity 0.15s;
    user-select: none;
    padding: 0.15em 0.35em;
    border-radius: 4px;
}

.thumb-toggle-group:hover {
    opacity: 1;
    background: var(--pico-secondary-hover-background, #eaeaea);
}

.file-group[open] .file-group-header {
    border-bottom: 1px solid var(--pico-muted-border-color, #ddd);
}

.file-name {
    color: #1d1d1f;
}

.match-count {
    font-size: 0.85rem;
    color: var(--pico-muted-color, #888);
    background: var(--pico-code-background-color, #eee);
    padding: 0.2em 0.6em;
    border-radius: 10px;
}

.file-results {
    padding: 0;
}

/* Match cards */
.match-card {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--pico-muted-border-color, #eee);
    transition: background 0.15s;
}

.match-card:last-child {
    border-bottom: none;
}

.match-card:hover {
    background: rgba(0, 122, 255, 0.04);
}

.match-card.thumb-collapsed:hover {
    background: rgba(0, 122, 255, 0.02);
}

.match-header strong {
    cursor: pointer;
    user-select: none;
}

.match-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.4rem;
    cursor: pointer;
    user-select: none;
}

.match-header:hover .collapse-chevron {
    color: var(--pico-primary, #0066cc);
}

.match-header-left {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}

.collapse-chevron {
    font-size: 0.65rem;
    transition: transform 0.2s;
    color: var(--pico-muted-color, #888);
}

.match-card.thumb-collapsed .collapse-chevron {
    transform: rotate(90deg);
}

.merge-badge {
    display: inline-block;
    font-size: 0.7rem;
    background: var(--ios-blue);
    color: #fff;
    padding: 0.1em 0.5em;
    border-radius: 10px;
    margin-left: 0.4rem;
    font-weight: 600;
}

.match-card.thumb-collapsed .match-body {
    display: flex;
}

.match-card.thumb-collapsed .match-thumbnail {
    display: none;
}

.match-card.thumb-collapsed .match-context {
    padding: 0.15rem 0.35rem;
    border-radius: 2px;
}

.match-card.thumb-collapsed .match-body {
    gap: 0;
}

.match-actions {
    display: flex;
    gap: 0.4rem;
}

.match-actions button {
    transition: transform 0.15s, box-shadow 0.15s;
}

.match-actions button:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.match-context {
    font-family: "SF Mono", "Menlo", "Monaco", monospace;
    font-size: 0.85rem;
    line-height: 1.5;
    padding: 0.6rem;
    background: #f9f9fb;
    border-radius: var(--ios-radius-sm);
    overflow-x: auto;
    word-break: break-word;
    border: 1px solid var(--ios-separator);
}

.match-body {
    display: flex;
    gap: 0.75rem;
    align-items: flex-start;
}

.match-thumbnail {
    max-width: 600px;
    min-width: 120px;
    height: auto;
    border-radius: var(--ios-radius-sm);
    border: 1px solid var(--ios-separator);
    box-shadow: var(--ios-shadow);
    flex-shrink: 0;
    cursor: pointer;
    transition: box-shadow 0.2s, transform 0.2s;
}

.match-thumbnail:hover {
    box-shadow: var(--ios-shadow-lg);
    transform: scale(1.01);
}

.match-body .match-context {
    flex: 1;
    min-width: 0;
}

.context-before {
    color: var(--pico-muted-color, #888);
}

.context-after {
    color: var(--pico-muted-color, #888);
}

.match-highlight {
    background: #ffeb3b;
    color: #333;
    padding: 0.1em 0.3em;
    border-radius: 3px;
    font-weight: 600;
}

/* Search summary */
.search-summary {
    margin-bottom: 0.5rem;
}

.search-summary code {
    font-size: 1.05rem;
}

/* Preview panel */
.preview-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 55vw;
    max-width: 900px;
    height: 80vh;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--ios-radius);
    border: 1px solid var(--ios-separator);
    box-shadow: var(--ios-shadow-lg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.preview-content {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.preview-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-bottom: 1px solid var(--ios-separator);
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--ios-radius) var(--ios-radius) 0 0;
    flex-shrink: 0;
    cursor: move;
    user-select: none;
    font-size: 0.8rem;
}

.preview-title {
    font-weight: 600;
    font-size: 0.9rem;
}

.preview-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
}
.preview-controls button {
    background: rgba(0, 0, 0, 0.06);
    border: none;
    color: #555;
    border-radius: 50%;
    width: 26px;
    height: 26px;
    min-width: 26px;
    padding: 0;
    font-size: 0.9rem;
    line-height: 26px;
    transition: background 0.15s;
}
.preview-controls button:hover {
    background: rgba(0, 0, 0, 0.12);
    transform: none;
}

#zoom-level {
    font-size: 0.85rem;
    min-width: 45px;
    text-align: center;
    color: var(--pico-muted-color, #888);
}

.preview-resize-handle {
    position: absolute;
    bottom: 0;
    right: 0;
    width: 20px;
    height: 20px;
    cursor: nwse-resize;
    z-index: 10;
}

.preview-resize-handle::after {
    content: "";
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--pico-muted-color, #888);
    border-bottom: 2px solid var(--pico-muted-color, #888);
}

.preview-image-wrapper {
    flex: 1;
    overflow: auto;
    padding: 1rem;
    background: var(--pico-secondary-background, #f0f0f0);
    cursor: grab;
    position: relative;
}

.preview-image-wrapper:active {
    cursor: grabbing;
}

.preview-image {
    display: block;
    max-width: none;
    transform-origin: 0 0;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    border-radius: 2px;
}

.preview-footer {
    text-align: center;
    padding: 0.3rem;
    border-top: 1px solid var(--ios-separator);
    flex-shrink: 0;
    background: transparent;
    font-size: 0.75rem;
}
.preview-footer small {
    color: var(--ios-gray);
}

/* Responsive */
@media (max-width: 768px) {
    .preview-panel {
        width: 100vw;
        max-width: none;
    }

    .match-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.4rem;
    }

    .context-slider-bar {
        flex-direction: column;
        align-items: flex-start;
    }

    .context-slider-bar label {
        min-width: auto;
        width: 100%;
    }
}

/* Image modal */
.img-modal {
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.img-modal-backdrop {
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.img-modal-content {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    width: 95vw;
    height: 95vh;
    background: rgba(30, 30, 35, 0.85);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-radius: var(--ios-radius);
    overflow: hidden;
    box-shadow: var(--ios-shadow-lg);
}

.img-modal-toolbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 2;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.35rem 1rem;
    background: rgba(30, 30, 35, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: var(--ios-radius) var(--ios-radius) 0 0;
    color: rgba(255, 255, 255, 0.8);
}

.img-modal-title {
    font-weight: 600;
    font-size: 0.9rem;
}

.img-modal-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}
.img-modal-controls button {
    background: rgba(255, 255, 255, 0.12);
    border: none;
    color: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    width: 28px;
    height: 28px;
    min-width: 28px;
    padding: 0;
    font-size: 1rem;
    line-height: 28px;
    transition: background 0.15s;
}
.img-modal-controls button:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: none;
}

#img-modal-zoom-level {
    font-size: 0.85rem;
    min-width: 45px;
    text-align: center;
    color: var(--pico-muted-color, #888);
}

/* Apple-style close button */
#img-modal-close {
    width: 28px;
    height: 28px;
    min-width: 28px;
    padding: 0;
    border-radius: 50% !important;
    background: #ff5f57;
    border: none;
    font-size: 0;
    line-height: 28px;
    cursor: pointer;
    transition: background 0.15s;
    position: relative;
}
#img-modal-close:hover {
    background: #e0443e;
}
#img-modal-close::after {
    content: "×";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: 700;
    color: rgba(120, 0, 0, 0.45);
    line-height: 1;
    transition: color 0.15s;
}
#img-modal-close:hover::after {
    color: rgba(80, 0, 0, 0.65);
}

.img-modal-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    padding: 0;
    background: rgba(192, 196, 207, 0.25);
    cursor: grab;
}

.img-modal-wrapper:active {
    cursor: grabbing;
}

#img-modal-image {
    position: absolute;
    top: 50%;
    left: 50%;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
    user-select: none;
    pointer-events: none;
}

@media (max-width: 768px) {
    .img-modal-content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }
}

/* Collapsible PDF section */
.pdf-section {
    border: 1px solid var(--ios-separator);
    border-radius: var(--ios-radius);
    margin-bottom: 1rem;
    overflow: hidden;
    box-shadow: var(--ios-shadow);
}

.pdf-section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.6rem 1rem;
    cursor: pointer;
    background: #fff;
    font-weight: 600;
    user-select: none;
    gap: 1rem;
    transition: background 0.15s;
}

.pdf-section-header:hover {
    background: #f5f5f7;
}

.pdf-filter-input {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--pico-muted-border-color, #ccc);
    border-radius: 4px;
    max-width: 220px;
    flex-shrink: 0;
}

@media (max-width: 768px) {
    .img-modal-content {
        width: 100vw;
        height: 100vh;
        border-radius: 0;
    }
}