/* Premium CRM Dashboard Styles */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #64748b;
    --dark: #0f172a;
    --light: #f8fafc;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --bg-gradient: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --sidebar-bg: rgba(15, 23, 42, 0.95);
    --input-bg: rgba(0, 0, 0, 0.2);
    --input-color: #ffffff;
    --card-title-color: var(--light);
}

:root.light-theme {
    --dark: #f1f5f9;
    --light: #0f172a;
    --bg-gradient: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
    --card-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(15, 23, 42, 0.08);
    --sidebar-bg: rgba(255, 255, 255, 0.98);
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-color: #0f172a;
    --secondary: #475569;
    --card-title-color: #1e293b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    background: var(--dark);
    color: var(--light);
    min-height: 100vh;
    display: flex;
    transition: background-color 0.3s, color 0.3s;
}

.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    transition: background-color 0.3s, border-color 0.3s;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 1rem;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--secondary);
}

.nav-item:hover, .nav-item.active {
    background: var(--card-bg);
    color: var(--light);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
}

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

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 1rem;
    backdrop-filter: blur(10px);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--secondary);
    margin-bottom: 0.5rem;
}

.stat-card .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.stat-card .trend {
    font-size: 0.75rem;
    margin-top: 0.5rem;
}

.trend.up { color: var(--success); }
.trend.down { color: var(--danger); }

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    border-radius: 1rem;
    overflow: hidden;
}

th {
    text-align: left;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    color: var(--secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
}

td {
    padding: 1rem;
    border-top: 1px solid var(--glass-border);
}

.btn {
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    border: none;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid var(--glass-border);
    color: var(--light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: rgba(239, 68, 68, 0.2);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: var(--danger);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.3);
}

.card-section {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 1rem;
    border: 1px solid var(--glass-border);
    margin-bottom: 2rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.badge.success { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge.danger { background: rgba(239, 68, 68, 0.2); color: var(--danger); }
.badge.completed { background: rgba(99, 102, 241, 0.2); color: var(--primary); }

.nav-item a {
    color: inherit;
    text-decoration: none;
    width: 100%;
    display: block;
}

/* Grids and Responsive Layout Utilities */
.grid-2-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.grid-3-col {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1.5rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    border-radius: 0.5rem;
}

.table-responsive table {
    min-width: 700px;
    width: 100%;
}

/* Custom Scrollbar for responsive tables */
.table-responsive::-webkit-scrollbar {
    height: 6px;
}
.table-responsive::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 3px;
}
.table-responsive::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.15);
    border-radius: 3px;
}
.table-responsive::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.25);
}

.form-summary {
    float: right;
    width: 300px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 0.75rem;
}

/* Mobile Navbar Styles */
.mobile-navbar {
    display: none;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    background: rgba(15, 23, 42, 0.95);
    border-bottom: 1px solid var(--glass-border);
    position: sticky;
    top: 0;
    z-index: 900;
    backdrop-filter: blur(10px);
}

.mobile-menu-btn, .mobile-close-btn {
    background: none;
    border: none;
    color: var(--light);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

.mobile-menu-btn:hover, .mobile-close-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 950;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.sidebar-header .mobile-close-btn {
    display: none;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    .mobile-navbar {
        display: flex;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 1000;
        width: 280px;
        transform: translateX(-100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-header .mobile-close-btn {
        display: flex;
    }

    .main-content {
        padding: 1.5rem 1rem;
    }

    .header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .header h1 {
        font-size: 1.75rem;
    }

    .grid-3-col {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
}

@media (max-width: 640px) {
    .grid-2-col {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .form-summary {
        float: none;
        width: 100%;
        margin-top: 2rem;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
}

/* Global Form Controls */
.form-control,
input[type="text"],
input[type="number"],
input[type="email"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--glass-border) !important;
    background: var(--input-bg) !important;
    color: var(--input-color) !important;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s, background-color 0.3s, color 0.3s;
}

input:focus, select:focus, textarea:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2) !important;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary);
    font-size: 0.875rem;
    font-weight: 600;
}

/* Calculator Styles */
.calculator-panel {
    background: rgba(99, 102, 241, 0.04);
    border: 1px dashed var(--primary);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-color: var(--primary);
}

.calculator-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
    border-bottom: 1px solid var(--glass-border);
    padding-bottom: 0.5rem;
}

.calculator-header h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary);
}

.calc-result-card {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--glass-border);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1.25rem;
}

.calc-result-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    color: var(--secondary);
    font-size: 0.9rem;
}

.calc-result-row span:last-child {
    color: var(--light);
    font-weight: 600;
}

.calc-result-row.total-row {
    margin-bottom: 0;
    border-top: 1px solid var(--glass-border);
    padding-top: 0.75rem;
    margin-top: 0.5rem;
    font-weight: bold;
    font-size: 1.1rem;
}

.calc-result-row.total-row span:first-child {
    color: var(--primary);
}

.calc-result-row.total-row span:last-child {
    color: var(--primary);
    font-size: 1.2rem;
}

/* Theme Toggle Container & Icons */
.theme-toggle-container {
    margin-top: auto;
    border-top: 1px solid var(--glass-border);
    padding-top: 1.25rem;
}

.sun-icon {
    display: none;
}

.moon-icon {
    display: block;
}

.light-theme .sun-icon {
    display: block;
    color: #f59e0b;
}

.light-theme .moon-icon {
    display: none;
}

.light-theme h1, 
.light-theme h2, 
.light-theme h3 {
    color: var(--card-title-color);
}

.light-theme select option {
    background: var(--dark) !important;
    color: var(--light) !important;
}