/*
 * Client & Payment Management Panel - Light Theme Design System
 * Clean, Professional, Minimal, Responsive
 */

:root {
    --bg-main: #f8fafc;
    --bg-card: #ffffff;
    --sidebar-bg: #ffffff;
    --sidebar-width: 250px;
    --sidebar-border: #e2e8f0;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;

    /* Status Color Tokens */
    --status-green: #10b981;
    --status-green-bg: #ecfdf5;
    --status-green-border: #a7f3d0;
    --status-orange: #f59e0b;
    --status-orange-bg: #fffbeb;
    --status-orange-border: #fde68a;
    --status-red: #ef4444;
    --status-red-bg: #fef2f2;
    --status-red-border: #fecaca;
    --status-gray: #64748b;
    --status-gray-bg: #f1f5f9;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 0.9375rem;
    line-height: 1.5;
    margin: 0;
    padding: 0;
    min-height: 100vh;
}

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

.app-sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 1020;
    transition: transform 0.2s ease-in-out;
}

.app-main {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
    background-color: var(--bg-main);
}

.app-content {
    padding: 1.75rem;
    flex-grow: 1;
}

/* Sidebar Styling */
.sidebar-brand {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--sidebar-border);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
}

.sidebar-brand-icon {
    width: 36px;
    height: 36px;
    background: #eff6ff;
    color: var(--primary-color);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    font-weight: 700;
}

.sidebar-brand-text {
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

.sidebar-nav {
    list-style: none;
    padding: 1rem 0.75rem;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
}

.sidebar-nav .nav-item {
    margin-bottom: 0.25rem;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.65rem 0.85rem;
    border-radius: 6px;
    color: #475569;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.15s ease;
}

.sidebar-nav .nav-link i {
    font-size: 1.15rem;
    color: #64748b;
    transition: color 0.15s ease;
}

.sidebar-nav .nav-link:hover {
    background-color: #f1f5f9;
    color: var(--primary-color);
}

.sidebar-nav .nav-link:hover i {
    color: var(--primary-color);
}

.sidebar-nav .nav-link.active {
    background-color: #eff6ff;
    color: var(--primary-color);
    font-weight: 600;
}

.sidebar-nav .nav-link.active i {
    color: var(--primary-color);
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--sidebar-border);
    background-color: #ffffff;
}

/* Top Navbar */
.app-navbar {
    height: 64px;
    background-color: #ffffff;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.75rem;
    position: sticky;
    top: 0;
    z-index: 1010;
}

/* Cards & Containers */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
}

/* Metric / Stat Cards */
.stat-card {
    padding: 1.25rem;
    border-radius: 8px;
    background: #ffffff;
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    flex-shrink: 0;
}

.stat-icon.primary { background: #eff6ff; color: #2563eb; }
.stat-icon.success { background: var(--status-green-bg); color: var(--status-green); }
.stat-icon.warning { background: var(--status-orange-bg); color: var(--status-orange); }
.stat-icon.danger { background: var(--status-red-bg); color: var(--status-red); }
.stat-icon.info { background: #f0fdfa; color: #0d9488; }

.stat-label {
    font-size: 0.8125rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

/* Tables */
.table {
    margin-bottom: 0;
    vertical-align: middle;
}

.table th {
    font-weight: 600;
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--text-muted);
    background-color: #f8fafc;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
}

.table td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
}

.table-hover tbody tr:hover {
    background-color: #f8fafc;
}

/* Status Badges */
.badge-status {
    padding: 0.35rem 0.65rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    text-transform: capitalize;
}

.badge-success {
    background-color: var(--status-green-bg);
    color: #065f46;
    border: 1px solid var(--status-green-border);
}

.badge-warning {
    background-color: var(--status-orange-bg);
    color: #92400e;
    border: 1px solid var(--status-orange-border);
}

.badge-danger {
    background-color: var(--status-red-bg);
    color: #991b1b;
    border: 1px solid var(--status-red-border);
}

.badge-secondary {
    background-color: var(--status-gray-bg);
    color: #475569;
    border: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    font-size: 0.875rem;
    font-weight: 500;
    padding: 0.5rem 0.9rem;
    border-radius: 6px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

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

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

.btn-sm {
    padding: 0.25rem 0.55rem;
    font-size: 0.8125rem;
}

/* Filter Bar */
.filter-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}

/* Form Controls */
.form-label {
    font-size: 0.84rem;
    font-weight: 600;
    color: #334155;
    margin-bottom: 0.35rem;
}

.form-control, .form-select {
    border-color: var(--border-color);
    font-size: 0.875rem;
    border-radius: 6px;
    padding: 0.5rem 0.75rem;
}

.form-control:focus, .form-select:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

/* Invoice Line Items Table */
.items-table th {
    background-color: #f1f5f9;
}

.items-table td {
    padding: 0.5rem;
}

/* Printable Document Styles */
@media print {
    .app-sidebar,
    .app-navbar,
    .btn,
    .no-print,
    .alert {
        display: none !important;
    }

    body {
        background-color: #ffffff !important;
        font-size: 11pt;
    }

    .app-main {
        margin-left: 0 !important;
    }

    .app-content {
        padding: 0 !important;
    }

    .print-container {
        padding: 20mm;
        margin: 0 auto;
        max-width: 100% !important;
        border: none !important;
        box-shadow: none !important;
    }

    .card {
        border: none !important;
        box-shadow: none !important;
    }
}

/* Responsive Styles */
@media (max-width: 991.98px) {
    .app-sidebar {
        transform: translateX(-100%);
    }

    .app-sidebar.show {
        transform: translateX(0);
    }

    .app-main {
        margin-left: 0;
    }

    .sidebar-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.4);
        z-index: 1015;
        display: none;
    }

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

/* Revenue & Sales Performance Cards */
.revenue-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    height: 100%;
}

.revenue-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06);
}

.revenue-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
}

.revenue-card.card-today::before { background: linear-gradient(90deg, #2563eb, #60a5fa); }
.revenue-card.card-week::before { background: linear-gradient(90deg, #4f46e5, #818cf8); }
.revenue-card.card-month::before { background: linear-gradient(90deg, #059669, #34d399); }
.revenue-card.card-pending::before { background: linear-gradient(90deg, #dc2626, #f87171); }

.revenue-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.65rem;
}

.revenue-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
}

.revenue-icon-box {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.card-today .revenue-icon-box { background: #eff6ff; color: #2563eb; }
.card-week .revenue-icon-box { background: #eef2ff; color: #4f46e5; }
.card-month .revenue-icon-box { background: #ecfdf5; color: #059669; }
.card-pending .revenue-icon-box { background: #fef2f2; color: #dc2626; }

.revenue-main-value {
    font-size: 1.65rem;
    font-weight: 800;
    line-height: 1.15;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, monospace;
}

.revenue-sub-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.8125rem;
    color: var(--text-muted);
    border-top: 1px dashed var(--border-color);
    padding-top: 0.5rem;
    margin-top: 0.5rem;
}