:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #334155;
    --success-color: #10b981;
    --danger-color: #ef4444;
}

[data-theme="light"] {
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.hidden {
    display: none !important;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.app-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.5rem 1rem;
    /* Reduced top/bottom padding */
}

/* Header */
.app-header {
    width: 100%;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
    /* Matches background */
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0.5rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.nav-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    transition: background-color 0.2s, color 0.2s;
}

.nav-link:hover {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent-color);
}

.theme-toggle {
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.theme-toggle:hover {
    background-color: rgba(128, 128, 128, 0.1);
}

.logout-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.5rem 1rem;
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s, border-color 0.2s;
}

.logout-btn:hover {
    background-color: rgba(239, 68, 68, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.logo-img {
    height: 1.5rem;
    /* ~40px to match text */
    width: auto;
}

.logo h1 {
    font-size: 1.25rem;
    /* Reduced size */
    font-weight: 700;
    color: var(--text-primary);
}

/* Upload Section */
.hero-text {
    text-align: center;
    margin-bottom: 1.25rem;
}

.hero-text h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

[data-theme="light"] .hero-text h2 {
    background: linear-gradient(135deg, #1d4ed8, #8668f2);
    /* Blue 700 to Blue 900 */
    /* Deep blue gradient, removing purple hint */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.upload-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.drop-zone {
    background-color: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.drop-zone:hover {
    border-color: var(--accent-color);
    background-color: rgba(59, 130, 246, 0.05);
}

.drop-zone i {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.secondary-zone {
    padding: 0.75rem;
    opacity: 0.8;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.file-list-container {
    margin-top: 1.5rem;
}

.file-items {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.file-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1rem;
    border-radius: 2rem;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    font-size: 0.9rem;
    color: var(--text-primary);
    transition: all 0.2s ease;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.file-chip:hover {
    border-color: var(--accent-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.file-chip i.far {
    color: var(--accent-color);
    font-size: 1.1rem;
}

.file-chip-name {
    max-width: 200px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-weight: 500;
}

.file-remove-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.25rem;
    display: flex;
    align-items: center;
    border-radius: 50%;
    transition: all 0.2s;
}

.file-remove-btn:hover {
    color: var(--danger-color);
    background-color: rgba(239, 68, 68, 0.1);
}

/* Optional: Different colors for categories? 
   Or keep it uniform for "premium" feel. 
   Let's keep it uniform but maybe subtle border hint if needed. 
*/


/* User Inputs */
.user-inputs {
    background-color: var(--card-bg);
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    transition: border-color 0.3s ease;
}

.user-inputs:hover {
    border-color: var(--accent-color);
}

.input-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.input-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
    letter-spacing: 0.05em;
}

.input-group input[type="text"],
.input-group input[type="date"] {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    transition: all 0.2s;
    width: 100%;
}

.input-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    outline: none;
}

.date-range-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.date-range-group span {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Results Section */
.hidden-section {
    display: none;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.btn-secondary {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    cursor: pointer;
}

.report-selector select {
    background: var(--card-bg);
    color: white;
    border: 1px solid var(--border-color);
    padding: 0.5rem;
    border-radius: 0.25rem;
    margin-left: 0.5rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 1rem 1.5rem;
    font-size: 1rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* Data Tables & Grids */
.tab-content.hidden {
    display: none;
}

.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.grid-item {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.grid-item label {
    display: block;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.grid-item .value {
    font-size: 1.1rem;
    font-weight: 500;
}

.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    vertical-align: top;
}

/* Column Specific Widths */
.col-service_provided {
    min-width: 315px;
}

.col-workpaper_ref {
    min-width: 250px;
}

.col-control_objective {
    min-width: 400px;
}

.col-csoc {
    min-width: 500px;
}

.col-control_description {
    min-width: 500px;
}

/* Management Response specific width */
.col-management_response {
    min-width: 350px;
}

.col-mitigating_factors {
    min-width: 250px;
}

.col-name {
    min-width: 272px;
}

.col-carved_out_inclusive {
    min-width: 130px;
}

.col-notes {
    min-width: 300px;
}

.col-cuec_id {
    min-width: 100px;
}

.col-internal_control {
    min-width: 270px;
}

.col-control_objective_id {
    min-width: 120px;
}

.col-control_id {
    min-width: 120px;
}

.col-financial_impact {
    min-width: 150px;
}

.data-table th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font-weight: 500;
}

.data-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease;
}

.modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 1rem;
    width: 90%;
    max-width: 500px;
    text-align: center;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.modal-content h3 {
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.error-icon {
    font-size: 3rem;
    color: var(--danger-color);
    margin-bottom: 1rem;
}

.error-title {
    color: var(--danger-color);
}

.general-table .field-label {
    font-weight: 600;
    color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.01);
}

.editable-input {
    width: 100%;
    background: transparent;
    border: 1px solid transparent;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s;
    resize: none;
    /* Auto-resize via JS matches this better */
    overflow: hidden;
    min-height: 2.5rem;
    line-height: 1.5;
}

.editable-input:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--border-color);
}

.editable-input:focus {
    outline: none;
    background-color: var(--card-bg);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Light mode overrides for inputs if needed */
[data-theme="light"] .editable-input {
    background-color: transparent;
    /* Or #ffffff if they want white bg but no border? User asked for white bg before. Let's keep white bg but remove border. */
    background-color: #ffffff;
    border: none;
}

[data-theme="light"] .editable-input:hover {
    background-color: #f8fafc;
}

/* Loader */
.loader {
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 3px solid #ffffff;
    width: 20px;
    height: 20px;
    -webkit-animation: spin 1s linear infinite;
    /* Safari */
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

/* Password Modal */
.password-modal-content {
    max-width: 450px;
}

.password-icon {
    font-size: 3rem;
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.password-title {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.password-file-info {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
    word-break: break-word;
}

.password-file-info span {
    color: var(--text-primary);
    font-weight: 600;
}

.password-progress {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

.password-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.password-input-group input {
    flex: 1;
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 0.85rem 1rem;
    font-size: 1rem;
    transition: all 0.2s;
}

.password-input-group input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
    outline: none;
}

.password-toggle-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.85rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s;
}

.password-toggle-btn:hover {
    background-color: rgba(59, 130, 246, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.password-status {
    min-height: 1.5rem;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    font-weight: 500;
}

.password-status.checking {
    color: var(--text-secondary);
}

.password-status.success {
    color: var(--success-color);
}

.password-status.error {
    color: var(--danger-color);
}

.password-actions {
    display: flex;
    gap: 1rem;
}

.password-actions .btn-secondary {
    flex: 1;
    padding: 0.85rem 1rem;
}

.password-actions .btn-primary {
    flex: 1;
    padding: 0.85rem 1rem;
}

.password-actions .btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}