@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #090D1A;
    --bg-card: #12182B;
    --bg-input: #1B233C;
    --border-color: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(99, 102, 241, 0.4);
    
    --text-primary: #F3F4F6;
    --text-secondary: #9CA3AF;
    --text-muted: #6B7280;
    
    --primary: #6366F1;
    --primary-hover: #4F46E5;
    --primary-glow: rgba(99, 102, 241, 0.35);
    
    --success: #10B981;
    --success-bg: rgba(16, 185, 129, 0.15);
    
    --danger: #EF4444;
    --danger-bg: rgba(239, 68, 68, 0.15);
    
    --warning: #F59E0B;
    --warning-bg: rgba(245, 158, 11, 0.15);
    
    --info: #3B82F6;
    --info-bg: rgba(59, 130, 246, 0.15);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: #232B45;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #323E63;
}

/* Layout */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 24px;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 20px;
}

.logo-section h1 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, #A5B4FC 0%, #6366F1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.logo-section p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Global Cards */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3), 0 8px 10px -6px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
}

.card:hover {
    border-color: rgba(255, 255, 255, 0.12);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 10px 10px -5px rgba(0, 0, 0, 0.4);
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
}

.stat-card.primary::after { background-color: var(--primary); }
.stat-card.success::after { background-color: var(--success); }
.stat-card.danger::after { background-color: var(--danger); }
.stat-card.warning::after { background-color: var(--warning); }
.stat-card.info::after { background-color: var(--info); }

.stat-title {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-val {
    font-size: 30px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Split Section: Upload + Chart */
.dashboard-middle {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-bottom: 30px;
}

@media (max-width: 992px) {
    .dashboard-middle {
        grid-template-columns: 1fr;
    }
}

.section-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Upload Container */
.upload-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
    height: 100%;
}

.upload-box {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 30px 20px;
    text-align: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.01);
    transition: var(--transition);
    position: relative;
}

.upload-box:hover, .upload-box.dragover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.03);
}

.upload-icon {
    font-size: 40px;
    color: var(--primary);
    margin-bottom: 12px;
}

.upload-text h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 4px;
}

.upload-text p {
    font-size: 13px;
    color: var(--text-secondary);
}

.upload-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-cards-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Charts Wrapper */
.charts-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 20px;
    height: 100%;
}

@media (max-width: 576px) {
    .charts-wrapper {
        grid-template-columns: 1fr;
    }
}

.chart-container {
    position: relative;
    height: 220px;
    width: 100%;
}

/* Controls / Filter Bar */
.controls-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.filters-group {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

/* Inputs & Selects */
.input-control {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 14px;
    transition: var(--transition);
    outline: none;
}

.input-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
}

select.input-control {
    cursor: pointer;
    padding-right: 32px;
}

/* Buttons */
.btn {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 18px;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    outline: none;
}

.btn:hover {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.15);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.btn-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
    background-color: var(--danger);
    color: #fff;
    border-color: var(--danger);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 14px;
    text-align: left;
}

th {
    background-color: rgba(255, 255, 255, 0.02);
    font-weight: 600;
    color: var(--text-secondary);
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.75px;
}

td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: rgba(255, 255, 255, 0.015);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.25px;
}

.badge-success { background-color: var(--success-bg); color: var(--success); }
.badge-danger { background-color: var(--danger-bg); color: var(--danger); }
.badge-warning { background-color: var(--warning-bg); color: var(--warning); }
.badge-info { background-color: var(--info-bg); color: var(--info); }
.badge-default { background-color: rgba(255, 255, 255, 0.08); color: var(--text-secondary); }

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.pagination-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.pagination-buttons {
    display: flex;
    align-items: center;
    gap: 6px;
}

.pagination-buttons .btn {
    padding: 8px 14px;
}

.pagination-buttons .btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    background-color: transparent;
    border-color: var(--border-color);
}

/* Modal Styling */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(4, 6, 12, 0.8);
    backdrop-filter: blur(8px);
}

.modal-content {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    position: relative;
    z-index: 1001;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.25s ease;
}

.modal.active .modal-content {
    transform: translateY(0);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
}

.modal-body {
    padding: 24px;
    max-height: 70vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: rgba(255, 255, 255, 0.01);
}

/* Form Styles */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group .input-control {
    width: 100%;
}

.form-group .readonly-text {
    padding: 10px 16px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-secondary);
}

/* Large preview modal */
.modal-lg .modal-content {
    max-width: 800px;
}

.sheet-selection-list {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.sheet-checkbox-card {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    transition: var(--transition);
}

.sheet-checkbox-card:hover {
    border-color: rgba(255, 255, 255, 0.15);
}

.sheet-checkbox-card.active {
    border-color: var(--primary);
    background-color: rgba(99, 102, 241, 0.05);
}

.sheet-checkbox-card input {
    cursor: pointer;
}

.sheet-info-text {
    display: flex;
    flex-direction: column;
}

.sheet-name {
    font-size: 14px;
    font-weight: 600;
}

.sheet-count {
    font-size: 12px;
    color: var(--text-secondary);
    margin-top: 2px;
}

/* Progress bar */
.progress-container {
    margin-top: 16px;
    display: none;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.progress-track {
    height: 8px;
    background-color: var(--bg-input);
    border-radius: 9999px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, #818CF8 100%);
    width: 0%;
    border-radius: 9999px;
    transition: width 0.1s ease;
    box-shadow: 0 0 10px var(--primary-glow);
}

/* Empty State */
.empty-state {
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.empty-state-text {
    font-size: 16px;
    font-weight: 500;
}

/* Sortable Headers Styling */
th.sortable {
    position: relative;
    transition: var(--transition);
}

th.sortable:hover {
    background-color: rgba(255, 255, 255, 0.05) !important;
    color: var(--text-primary) !important;
}

.sort-icon {
    display: inline-block;
    margin-left: 6px;
    width: 10px;
    height: 10px;
    font-size: 10px;
    vertical-align: middle;
    opacity: 0.3;
    transition: var(--transition);
}

th.sortable:hover .sort-icon {
    opacity: 0.7;
}

th.asc .sort-icon {
    opacity: 1;
    color: var(--primary);
}
th.asc .sort-icon::after {
    content: ' ▲';
}

th.desc .sort-icon {
    opacity: 1;
    color: var(--primary);
}
th.desc .sort-icon::after {
    content: ' ▼';
}