:root {
    --bg-main: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --bg-hover: rgba(51, 65, 85, 0.8);
    --border-color: rgba(255,255,255,0.05);
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    
    --accent-blue: #3b82f6;
    --accent-green: #2ecc71;
    --accent-purple: #9b59b6;
    --accent-red: #e74c3c;
    
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 15px rgba(59, 130, 246, 0.3);
    
    --font-family: 'Outfit', sans-serif;
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font-family);
    background-color: var(--bg-main);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(59, 130, 246, 0.08), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(155, 89, 182, 0.08), transparent 25%);
    background-attachment: fixed;
}

.dashboard-container {
    width: 100%;
    max-width: 1400px;
    padding: 2rem;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

#expenses-view, #sales-view {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}


/* Header */
.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1.5rem;
}

.dashboard-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 0.5rem 0;
    background: linear-gradient(135deg, #60a5fa, #a78bfa);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.5px;
}

.dashboard-header p {
    color: var(--text-muted);
    margin: 0;
    font-size: 1.1rem;
    font-weight: 300;
}

/* View Toggle Tabs */
.view-toggle {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.8rem 2rem;
    border-radius: 30px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.toggle-btn:hover {
    color: var(--text-main);
    border-color: rgba(255, 255, 255, 0.2);
}

.toggle-btn.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.4);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 600;
    font-size: 1.2rem;
    padding: 0.8rem 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 30px;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(10px);
}

.user-profile i {
    color: #60a5fa;
    font-size: 1.3rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
    border-color: rgba(255,255,255,0.1);
}

/* KPI Grid */
.kpi-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.kpi-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.kpi-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.8rem;
}

.kpi-info h3 {
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.kpi-info h2 {
    margin: 0.5rem 0 0 0;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-main);
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
}

.chart-card {
    display: flex;
    flex-direction: column;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.card-header h3 {
    margin: 0;
    font-size: 1.2rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.card-header h3 i {
    color: var(--accent-blue);
}

.chart-container {
    position: relative;
    width: 100%;
    height: 350px;
    flex-grow: 1;
}

/* Table Card */
.table-card {
    padding: 0;
    overflow: hidden;
}

.search-input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.6rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
    width: 250px;
}

.search-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.table-card .card-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
}

.table-responsive {
    overflow-x: auto;
    overflow-y: auto;
    padding: 0 1.5rem 1.5rem 1.5rem;
    max-height: 400px;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(255,255,255,0.02);
}
::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255,255,255,0.2);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

th {
    text-align: left;
    padding: 1rem;
    color: var(--text-muted);
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    background: rgba(24, 33, 47, 0.95);
    backdrop-filter: blur(10px);
    z-index: 10;
}

td {
    padding: 1rem;
    border-bottom: 1px solid rgba(255,255,255,0.02);
    color: var(--text-main);
    font-weight: 300;
}

tr:hover td {
    background: rgba(255,255,255,0.02);
}

.amt-cell {
    font-weight: 600;
    color: #fca5a5;
}

.cat-badge {
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    display: inline-block;
    cursor: pointer;
    transition: var(--transition);
}

.cat-badge:hover {
    transform: scale(1.05);
    filter: brightness(1.2);
}

/* Sales Specific Styles */
.customer-rank-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.customer-rank-item:last-child {
    border-bottom: none;
}

.customer-rank-item:hover {
    background: rgba(255,255,255,0.03);
}

.rank-index {
    font-weight: 700;
    font-size: 1.2rem;
    width: 30px;
}
.rank-1 { color: #f1c40f; } /* Gold */
.rank-2 { color: #bdc3c7; } /* Silver */
.rank-3 { color: #cd7f32; } /* Bronze */
.rank-other { color: var(--text-muted); }

.customer-name {
    flex: 1;
    font-weight: 500;
    color: var(--text-main);
}

.customer-amount {
    font-weight: 700;
    color: #2ecc71;
}

.product-sales-table th,
.product-sales-table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}
.product-sales-table tr:hover td {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Category Filters */
.category-filters {
    padding: 1rem 1.5rem 0.5rem 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.filter-chip {
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    color: var(--text-muted);
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

.filter-chip:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.filter-chip.active {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.4);
}

/* Floating Action Button */
.fab-btn {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
    border: none;
    font-size: 1.5rem;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
    cursor: pointer;
    z-index: 100;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
}

.fab-btn:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 6px 20px rgba(139, 92, 246, 0.6);
}

/* Actions in Table */
.action-btn {
    background: transparent;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    margin: 0 0.3rem;
    transition: var(--transition);
}

.btn-edit { color: #60a5fa; }
.btn-delete { color: #f87171; }

.action-btn:hover {
    transform: scale(1.2);
    filter: brightness(1.2);
}

/* Modal CSS */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-glow);
    border-radius: var(--border-radius);
    width: 90%;
    max-width: 500px;
    transform: translateY(20px);
    transition: var(--transition);
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    margin: 0;
    font-size: 1.4rem;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}
.close-btn:hover { color: var(--text-main); }

.modal-content {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-group input {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.form-group input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

/* Fix calendar icon color for date input in dark mode */
::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-primary {
    background: var(--accent-blue);
    color: white;
}
.btn-primary:hover {
    background: #2563eb;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

/* Media Queries */
@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .card-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .search-input {
        width: 100%;
    }
}

/* Form Styles Extension */
.form-group select {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.8rem 1rem;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
    appearance: none;
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
}

.form-group select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

.form-group select optgroup {
    background: var(--bg-main);
    color: var(--accent-blue);
    font-weight: bold;
}

.form-group select option {
    background: var(--bg-main);
    color: var(--text-main);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}
.btn-outline:hover {
    border-color: var(--text-main);
    color: var(--text-main);
}

/* Toast Notifications */
.toast {
    position: fixed;
    bottom: -100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(30, 41, 59, 0.95);
    color: white;
    padding: 1rem 2rem;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    border: 1px solid rgba(255,255,255,0.1);
    font-weight: 500;
    z-index: 9999;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast.show {
    bottom: 30px;
}

.toast.toast-error {
    border-left: 4px solid var(--accent-red);
}

.toast.toast-success {
    border-left: 4px solid var(--accent-green);
}