:root {
    --primary: #6366f1;
    --primary-light: #818cf8;
    --primary-hover: #4f46e5;
    --secondary: #10b981;
    --secondary-hover: #059669;
    --danger: #f43f5e;
    --warning: #fbbf24;
    --info: #0ea5e9;

    --bg-main: #0b0f1a;
    --bg-sidebar: #131b2d;
    --bg-card: rgba(22, 30, 48, 0.6);
    --bg-card-hover: rgba(28, 38, 62, 0.8);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #475569;

    --border: rgba(255, 255, 255, 0.08);
    --glass: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.06);

    --gradient-primary: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --gradient-surface: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0) 100%);

    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 4px 20px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);

    --radius-sm: 0.5rem;
    --radius: 1rem;
    --radius-lg: 1.25rem;
    --radius-xl: 1.75rem;

    --transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    background-image:
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(16, 185, 129, 0.05) 0px, transparent 50%);
}

h1,
h2,
h3,
h4,
.logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
    letter-spacing: -0.02em;
}

/* App Layout */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.2);
}

.sidebar-header {
    padding: 2.5rem 1.75rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-icon {
    color: var(--primary);
    width: 32px;
    height: 32px;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.sidebar-nav {
    flex: 1;
    padding: 0 1.25rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    width: 100%;
    padding: 1rem 1.25rem;
    margin-bottom: 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
    font-weight: 500;
    font-size: 0.9375rem;
}

.nav-item i {
    width: 22px;
    height: 22px;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 8px 16px rgba(99, 102, 241, 0.25);
}

.sidebar-footer {
    padding: 2rem 1.5rem;
    border-top: 1px solid var(--border);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem;
    background: var(--glass);
    border-radius: var(--radius);
    border: 1px solid var(--glass-border);
}

.avatar {
    width: 44px;
    height: 44px;
    background: var(--gradient-primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
}

.user-info {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.user-name {
    font-weight: 600;
    font-size: 0.9375rem;
}

.user-status {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.logout-btn {
    width: 20px;
    height: 20px;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
}

.logout-btn-wrapper:hover .logout-btn {
    color: var(--danger);
    transform: rotate(90deg);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 280px;
    padding: 3rem 4rem;
    min-height: 100vh;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 3.5rem;
}

.header-text h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.header-text p {
    color: var(--text-secondary);
    font-size: 1rem;
}

.header-actions {
    display: flex;
    gap: 1.25rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.625rem;
    padding: 0.875rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 0.9375rem;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px rgba(99, 102, 241, 0.3);
    filter: brightness(1.1);
}

.btn-secondary {
    background: var(--glass);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-2px);
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-surface);
    pointer-events: none;
}

.card:hover {
    transform: translateY(-6px) scale(1.01);
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
    box-shadow: var(--shadow-lg);
}

.metric-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    font-family: 'Outfit';
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.metric-trend {
    font-size: 0.8125rem;
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-weight: 500;
}

.trend-up {
    color: var(--secondary);
}

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

/* Grid Systems */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.dashboard-layout {
    display: grid;
    grid-template-columns: 1.8fr 1fr;
    gap: 2rem;
    align-items: start;
}

/* Tables */
.table-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    backdrop-filter: blur(16px);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    padding: 1.25rem 2rem;
    background: rgba(255, 255, 255, 0.01);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border-bottom: 1px solid var(--border);
    text-align: left;
}

td {
    padding: 1.25rem 2rem;
    border-bottom: 1px solid var(--border);
    font-size: 0.9375rem;
    color: var(--text-primary);
}

tr:hover td {
    background: rgba(255, 255, 255, 0.01);
}

.status-badge {
    padding: 0.375rem 1rem;
    border-radius: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.status-due {
    background: rgba(251, 191, 36, 0.1);
    color: var(--warning);
    border: 1px solid rgba(251, 191, 36, 0.2);
}

.status-paid {
    background: rgba(16, 185, 129, 0.1);
    color: var(--secondary);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.status-overdue {
    background: rgba(244, 63, 94, 0.1);
    color: var(--danger);
    border: 1px solid rgba(244, 63, 94, 0.2);
}

/* Charts Area */
.chart-card {
    height: 100%;
}

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

/* Modal Enhancements */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(7, 10, 19, 0.85);
    backdrop-filter: blur(12px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: var(--transition);
}

.modal-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-overlay.hidden .modal {
    transform: scale(0.9) translateY(20px);
}

.modal {
    background: var(--bg-sidebar);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: 90%;
    max-width: 550px;
    padding: 3rem;
    position: relative;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    transform: scale(1) translateY(0);
    transition: var(--transition);
}

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

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

.close-modal:hover {
    color: var(--danger);
    transform: rotate(90deg);
}

/* Forms */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group.full {
    grid-column: span 2;
}

label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
    color: var(--text-secondary);
}

input,
select,
textarea {
    width: 100%;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

input:focus,
select:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.06);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

/* Animations */
@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.view-animate {
    animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.75rem;
    border-radius: var(--radius);
    cursor: pointer;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.08);
}

/* Mobile Responsive */
@media (max-width: 1024px) {
    .dashboard-layout {
        grid-template-columns: 1fr;
    }

    .sidebar {
        width: 280px;
        transform: translateX(-100%);
        -webkit-transform: translateX(-100%);
        display: none;
        /* FORCE HIDE IN SAFARI */
        transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
        z-index: 1000;
        left: 0;
        top: 0;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar.open {
        display: flex;
        transform: translateX(0);
        -webkit-transform: translateX(0);
        box-shadow: 20px 0 50px rgba(0, 0, 0, 0.5);
    }

    .main-content {
        margin-left: 0 !important;
        padding: 1.5rem 1rem;
    }

    .content-header {
        flex-direction: row;
        align-items: center;
        gap: 1rem;
        margin-bottom: 2rem;
    }

    .menu-toggle {
        display: flex;
        flex-shrink: 0;
    }

    .header-text h1 {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
        line-height: 1.2;
    }

    .header-text p {
        font-size: 0.8125rem;
    }

    .metrics-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem;
    }

    .metrics-grid .card {
        padding: 1.5rem;
    }

    .metric-value {
        font-size: 1.75rem;
        word-break: break-all;
    }

    /* Fix for P vs I card stacking on mobile */
    .metrics-grid .card div[style*="flex"] {
        flex-direction: column;
        align-items: flex-start !important;
        gap: 5px !important;
    }

    .metrics-grid .card div[style*="flex"] .text-muted {
        display: none;
        /* Hide the slash on mobile */
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch !important;
        gap: 1rem;
    }

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

    .sidebar-overlay {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        -webkit-backdrop-filter: blur(4px);
        z-index: 900;
    }

    .sidebar-overlay.active {
        display: block;
    }

    .modal {
        padding: 2rem 1.5rem;
        width: 95%;
        max-height: 90vh;
        overflow-y: auto;
    }

    .form-grid {
        grid-template-columns: 1fr;
    }

    /* Table Card View on Mobile */
    table thead {
        display: none;
    }

    table td {
        display: block;
        padding: 0.75rem 1rem;
        text-align: right;
        border: none;
        font-size: 0.875rem;
    }

    table td:before {
        content: attr(data-label);
        float: left;
        font-weight: 600;
        color: var(--text-secondary);
        font-size: 0.75rem;
    }

    table tr {
        display: block;
        border-bottom: 1px solid var(--border);
        padding: 0.75rem 0;
    }
}