/* === Reset & Variables === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --text-primary: #e0e0e0;
    --text-secondary: #8a8a9a;
    --text-muted: #5a5a6a;
    --accent: #e94560;
    --accent-hover: #ff6b81;
    --success: #2ecc71;
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    --border: #2a2a3e;
    --radius: 8px;
    --shadow: 0 4px 24px rgba(0,0,0,0.3);
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow: hidden;
}

/* === Layout === */
.app { display: flex; flex-direction: column; height: 100vh; }

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 24px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    z-index: 10;
}

.header-left { display: flex; align-items: center; gap: 16px; }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo h1 {
    font-size: 1.3rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), #ff6b81);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.badge {
    font-size: 0.65rem;
    font-weight: 600;
    padding: 3px 8px;
    background: rgba(46, 204, 113, 0.15);
    color: var(--success);
    border: 1px solid rgba(46, 204, 113, 0.3);
    border-radius: 4px;
    letter-spacing: 0.5px;
}

.main { flex: 1; display: flex; overflow: hidden; }

/* === Upload Area === */
.upload-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.upload-content {
    text-align: center;
    padding: 60px;
    border: 2px dashed var(--border);
    border-radius: 16px;
    max-width: 500px;
    transition: border-color 0.3s, background 0.3s;
}

.upload-content:hover,
.upload-area.drag-over .upload-content {
    border-color: var(--accent);
    background: rgba(233, 69, 96, 0.05);
}

.upload-content h2 {
    margin: 20px 0 8px;
    font-size: 1.2rem;
    font-weight: 600;
}

.upload-content p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 24px;
}

/* === Buttons === */
button {
    cursor: pointer;
    font-family: inherit;
    border: none;
    border-radius: var(--radius);
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    padding: 10px 24px;
    background: var(--accent);
    color: white;
    font-size: 0.9rem;
}
.btn-primary:hover { background: var(--accent-hover); }

.btn-accent {
    padding: 8px 16px;
    background: var(--accent);
    color: white;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 6px;
}
.btn-accent:hover { background: var(--accent-hover); }

.btn-danger {
    padding: 8px 16px;
    background: var(--danger);
    color: white;
    font-size: 0.8rem;
}
.btn-danger:hover { background: #c0392b; }

.btn-success {
    padding: 8px 16px;
    background: var(--success);
    color: white;
    font-size: 0.8rem;
}
.btn-success:hover { background: #27ae60; }

.btn-secondary {
    padding: 8px 16px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: 0.8rem;
    border: 1px solid var(--border);
}
.btn-secondary:hover { background: var(--border); }

.btn-sm {
    padding: 5px 12px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.75rem;
    border: 1px solid var(--border);
}
.btn-sm:hover { color: var(--text-primary); background: var(--border); }

.btn-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-secondary);
    border-radius: 50%;
}
.btn-icon:hover { color: var(--text-primary); background: var(--bg-tertiary); }

.btn-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.4rem;
    border-radius: 50%;
}
.btn-close:hover { color: var(--text-primary); background: var(--bg-tertiary); }

/* === Work Area === */
.work-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 16px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    gap: 12px;
    flex-wrap: wrap;
}

.toolbar-left, .toolbar-center, .toolbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

.file-name {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-primary);
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.page-info, .zoom-level {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.separator {
    color: var(--border);
    font-size: 0.8rem;
}

/* === Content Split === */
.content-split {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.pdf-viewer {
    flex: 1;
    overflow: auto;
    display: flex;
    justify-content: center;
    padding: 20px;
    background: var(--bg-primary);
}

.pdf-container {
    position: relative;
    display: inline-block;
    box-shadow: var(--shadow);
}

#pdf-canvas {
    display: block;
}

.redaction-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.redaction-box {
    position: absolute;
    border: 2px solid var(--accent);
    background: rgba(233, 69, 96, 0.2);
    cursor: pointer;
    pointer-events: auto;
    transition: background 0.2s;
}

.redaction-box:hover {
    background: rgba(233, 69, 96, 0.35);
}

.redaction-box.selected {
    background: rgba(233, 69, 96, 0.4);
    border-color: var(--accent-hover);
}

.redaction-box.deselected {
    border-color: var(--text-muted);
    background: rgba(90, 90, 106, 0.15);
    border-style: dashed;
}

.redaction-label {
    position: absolute;
    top: -18px;
    left: 0;
    font-size: 0.6rem;
    padding: 1px 5px;
    background: var(--accent);
    color: white;
    border-radius: 3px;
    white-space: nowrap;
    pointer-events: none;
}

.redaction-box.deselected .redaction-label {
    background: var(--text-muted);
}

/* === Sidebar === */
.sidebar {
    width: 360px;
    min-width: 360px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-header h3 { font-size: 0.9rem; font-weight: 600; }

.sidebar-actions { display: flex; gap: 4px; }

.sidebar-stats {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
}

.stat-card {
    text-align: center;
    padding: 8px;
    background: var(--bg-tertiary);
    border-radius: 6px;
}

.stat-card .stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-card .stat-label {
    font-size: 0.65rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.sidebar-filters {
    padding: 8px 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.filter-chip {
    padding: 3px 10px;
    font-size: 0.7rem;
    border-radius: 12px;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-chip.active {
    background: rgba(233, 69, 96, 0.15);
    color: var(--accent);
    border-color: var(--accent);
}

.findings-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
}

.finding-item {
    padding: 10px 12px;
    margin-bottom: 4px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    border-left: 3px solid var(--accent);
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    align-items: flex-start;
    gap: 8px;
}

.finding-item:hover { background: var(--border); }

.finding-item.deselected {
    opacity: 0.5;
    border-left-color: var(--text-muted);
}

.finding-checkbox {
    margin-top: 2px;
    accent-color: var(--accent);
}

.finding-details { flex: 1; min-width: 0; }

.finding-type {
    font-size: 0.65rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.finding-value {
    font-size: 0.8rem;
    font-family: 'Consolas', monospace;
    color: var(--text-primary);
    word-break: break-all;
}

.finding-meta {
    display: flex;
    gap: 8px;
    margin-top: 4px;
    font-size: 0.65rem;
    color: var(--text-secondary);
}

.threat-badge {
    padding: 1px 6px;
    border-radius: 3px;
    font-size: 0.6rem;
    font-weight: 600;
}

.threat-critical { background: rgba(231,76,60,0.2); color: #e74c3c; }
.threat-high { background: rgba(243,156,18,0.2); color: #f39c12; }
.threat-medium { background: rgba(52,152,219,0.2); color: #3498db; }
.threat-low { background: rgba(46,204,113,0.2); color: #2ecc71; }

.type-ssn { color: #e74c3c; }
.type-phone { color: #f39c12; }
.type-email { color: #3498db; }
.type-address { color: #9b59b6; }
.type-name { color: #2ecc71; }
.type-dob { color: #e67e22; }
.type-id { color: #1abc9c; }

/* === Modals === */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.modal-content {
    background: var(--bg-secondary);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    max-height: 85vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-large { max-width: 800px; }

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 { font-size: 1.1rem; }

.modal-body {
    padding: 20px;
    overflow-y: auto;
    flex: 1;
}

.modal-body h3 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 16px 0 8px;
}

.modal-body h3:first-child { margin-top: 0; }

/* Settings */
.settings-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.setting-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-tertiary);
    border-radius: 6px;
    font-size: 0.8rem;
}

.setting-item input[type="checkbox"] {
    accent-color: var(--accent);
}

.sensitivity-slider {
    padding: 8px 0;
}

.sensitivity-slider input[type="range"] {
    width: 100%;
    accent-color: var(--accent);
}

.sensitivity-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* === Processing Overlay === */
.processing-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 15, 26, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 200;
}

.processing-content {
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto 16px;
}

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

.progress-bar {
    width: 240px;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    margin-top: 12px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    width: 0%;
    background: var(--accent);
    border-radius: 2px;
    transition: width 0.3s;
}

/* === Report Styles === */
.report-section {
    margin-bottom: 24px;
}

.report-section h3 {
    font-size: 0.9rem;
    color: var(--accent);
    border-bottom: 1px solid var(--border);
    padding-bottom: 6px;
    margin-bottom: 12px;
}

.report-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
}

.report-stat {
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
}

.report-stat .value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
}

.report-stat .label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

.report-table th, .report-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.report-table th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.cert-box {
    background: rgba(46, 204, 113, 0.1);
    border: 1px solid rgba(46, 204, 113, 0.3);
    border-radius: 8px;
    padding: 16px;
    text-align: center;
}

.cert-box h4 {
    color: var(--success);
    margin-bottom: 8px;
}

.cert-box p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.cert-stamp {
    margin-top: 12px;
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* === Utilities === */
.hidden { display: none !important; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }