/* ==========================================================================
   Enterprise Modern Light Theme Design System
   Gate Pass Management System (uGatePass)
   Benchmarked against Microsoft Dynamics 365, SAP Fiori, Workday, & ServiceNow
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=Inter:wght@300;400;500;600;700&family=Manrope:wght@500;600;700&display=swap');

:root {
    /* Brand Color Palette */
    --primary-color: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-light: #EFF6FF;
    --secondary-color: #3B82F6;
    --secondary-hover: #2563EB;
    
    /* Semantic Status Colors */
    --success-color: #16A34A;
    --success-bg: #F0FDF4;
    --warning-color: #F59E0B;
    --warning-bg: #FFFBEB;
    --danger-color: #DC2626;
    --danger-bg: #FEF2F2;
    --info-color: #0891B2;
    --info-bg: #ECFEFF;
    
    /* Light Surface Palette */
    --bg-light: #F8FAFC;       /* Main Workspace Light Gray */
    --bg-card: #FFFFFF;        /* Pure White Cards */
    --sidebar-bg: #FFFFFF;     /* Pure White Enterprise Sidebar */
    --header-bg: #FFFFFF;      /* Pure White Header */
    
    /* Typography & Borders */
    --text-primary: #111827;   /* Deep Dark Slate */
    --text-secondary: #4B5563; /* Slate Gray */
    --text-muted: #9CA3AF;     /* Light Muted Gray */
    --border-color: #E5E7EB;   /* Thin Subtle Border */
    --border-hover: #CBD5E1;
    
    /* Rounded Radii */
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Smooth Transitions & Shadows */
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --box-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --box-shadow-hover: 0 10px 25px -5px rgba(0, 0, 0, 0.08), 0 8px 10px -6px rgba(0, 0, 0, 0.03);
}

/* Base Document Reset */
body {
    font-family: 'Inter', 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.5;
    overflow-x: hidden;
}

h1, .h1 { font-size: 30px; font-weight: 700; color: var(--text-primary); }
h2, .h2 { font-size: 24px; font-weight: 700; color: var(--text-primary); }
h3, .h3 { font-size: 22px; font-weight: 600; color: var(--text-primary); }
h4, .h4 { font-size: 18px; font-weight: 600; color: var(--text-primary); }
h5, .h5 { font-size: 16px; font-weight: 600; color: var(--text-primary); }
small, .small { font-size: 13px; }

/* Custom Thin Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #F1F5F9;
}
::-webkit-scrollbar-thumb {
    background: #CBD5E1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #94A3B8;
}

/* Modern Layout Core Wrapper */
.layout-wrapper {
    display: flex;
    height: 100vh;
    width: 100vw;
    max-width: 100%;
    overflow: hidden;
    background-color: var(--bg-light);
}

/* Redesigned Enterprise Sidebar (Light Theme) */
.sidebar {
    width: 250px;
    height: 100vh;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    color: var(--text-primary);
    flex-shrink: 0;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    z-index: 1020;
    overflow: hidden;
}

.sidebar .brand {
    padding: 1rem 1.25rem;
    font-family: 'Manrope', sans-serif;
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.sidebar-menu {
    list-style: none;
    padding: 0.35rem 0;
    margin: 0;
    flex-grow: 1;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: transparent transparent;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: transparent;
    border-radius: 4px;
}

.sidebar:hover .sidebar-menu::-webkit-scrollbar-thumb {
    background: #E2E8F0;
}

.menu-category {
    font-family: 'Manrope', sans-serif;
    font-size: 9.5px !important;
    font-weight: 700 !important;
    letter-spacing: 0.9px !important;
    color: var(--text-muted) !important;
    padding: 0.5rem 1.15rem 0.15rem 1.15rem;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    padding: 0.42rem 1.15rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.835rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    border-left: 3px solid transparent;
}

.sidebar-item a i {
    margin-right: 10px;
    font-size: 1.05rem;
    width: 18px;
    text-align: center;
    color: #6B7280;
    transition: var(--transition-smooth);
}

.sidebar-item a:hover {
    color: var(--primary-color);
    background-color: var(--primary-light);
}

.sidebar-item a:hover i {
    color: var(--primary-color);
}

.sidebar-item.active a {
    color: var(--primary-color);
    background-color: var(--primary-light);
    font-weight: 600;
    border-left-color: var(--primary-color);
}

.sidebar-item.active a i {
    color: var(--primary-color);
}

/* Main Content Area */
.main-content {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    overflow-x: hidden;
    height: 100vh;
}

/* Top Sticky Header */
.navbar-top {
    height: 68px;
    background-color: var(--header-bg);
    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;
}

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

/* Modern Enterprise Cards & Highlighted Metric Cards */
.card, .glass-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color) !important;
    border-radius: var(--border-radius-md) !important;
    box-shadow: var(--box-shadow-sm);
    transition: var(--transition-smooth);
}

.card:hover, .glass-card:hover {
    box-shadow: var(--box-shadow-hover);
}

/* Highlighted Metric Cards with Full Background Tints & Accents */
.kpi-card {
    padding: 1.25rem 1.4rem !important;
    border-radius: 16px !important;
    box-shadow: 0 4px 14px 0 rgba(0, 0, 0, 0.04);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.kpi-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 24px -4px rgba(0, 0, 0, 0.08);
}

.kpi-card-primary {
    background: linear-gradient(135deg, #EFF6FF 0%, #DBEAFE 100%) !important;
    border: 1px solid #BFDBFE !important;
    border-left: 5px solid #2563EB !important;
}

.kpi-card-success {
    background: linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%) !important;
    border: 1px solid #BBF7D0 !important;
    border-left: 5px solid #16A34A !important;
}

.kpi-card-warning {
    background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%) !important;
    border: 1px solid #FDE68A !important;
    border-left: 5px solid #F59E0B !important;
}

.kpi-card-info {
    background: linear-gradient(135deg, #ECFEFF 0%, #CFFAFE 100%) !important;
    border: 1px solid #A5F3FC !important;
    border-left: 5px solid #0891B2 !important;
}

.kpi-icon-box {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF !important;
    font-size: 1.3rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    flex-shrink: 0;
}

.kpi-icon-primary { background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%); }
.kpi-icon-success { background: linear-gradient(135deg, #16A34A 0%, #15803D 100%); }
.kpi-icon-warning { background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%); }
.kpi-icon-info { background: linear-gradient(135deg, #0891B2 0%, #0E7490 100%); }

.card-header {
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--border-color);
}

/* Buttons */
.btn {
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1.25rem;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition-smooth);
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

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

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    color: #FFFFFF;
}

/* Form Controls & Inputs */
.form-control, .form-select {
    padding: 0.65rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    color: var(--text-primary);
    background-color: #FFFFFF;
    transition: var(--transition-smooth);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    outline: none;
}

/* Status Badges */
.badge {
    padding: 0.4em 0.8em;
    font-weight: 600;
    border-radius: 50rem;
    font-size: 0.75rem;
    letter-spacing: 0.3px;
}

.bg-primary { background-color: var(--primary-color) !important; }
.bg-success { background-color: var(--success-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

/* Enterprise Tables */
.table {
    color: var(--text-primary);
    margin-bottom: 0;
}

.table th {
    background-color: #F8FAFC;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding: 0.85rem 1rem;
}

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

.table-hover tbody tr:hover {
    background-color: #F1F5F9;
}