:root {
    --primary-color: #d4af37; /* Luxury Gold */
    --primary-dark: #b5952f;
    --bg-dark: #0f1115;
    --bg-card: #181b21;
    --text-main: #f3f4f6;
    --text-heading: #f3f4f6;
    --text-muted: #9ca3af;
    --border-color: #2e3440;
    --accent-color: #3b82f6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --btn-bg-color: #d4af37;
    --btn-text-color: #000000;
    
    --font-family: 'Inter', system-ui, -apple-system, sans-serif;
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    min-height: 100vh;
    font-size: 0.875rem; /* 14px base size */
}

/* Typography */
h1 {
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 0.75rem;
    font-size: 1.4rem;
}

h2 {
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 0.75rem;
    font-size: 1.2rem;
}

h3 {
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 0.5rem;
    font-size: 1rem;
}

h4, h5 {
    font-weight: 600;
    color: var(--text-heading);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-dark);
}

/* Layout: Sidebar */
.sidebar {
    width: 220px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.2rem;
    position: fixed;
    top: 70px;
    left: 0;
    height: calc(100vh - 70px);
    overflow-y: auto;
    z-index: 1000;
    transition: width 0.3s ease, padding 0.3s ease, transform 0.3s ease;
}

/* Custom Thin Scrollbar for Sidebar */
.sidebar::-webkit-scrollbar {
    width: 4px;
}
.sidebar::-webkit-scrollbar-track {
    background: transparent;
}
.sidebar::-webkit-scrollbar-thumb {
    background-color: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
}
.sidebar::-webkit-scrollbar-thumb:hover {
    background-color: rgba(255, 255, 255, 0.3);
}

.sidebar.collapsed {
    width: 80px;
    padding: 1.5rem 0.5rem;
}

.sidebar.collapsed .sidebar-logo img {
    height: 40px !important;
}

.sidebar.collapsed .sidebar-logo {
    justify-content: center;
}

.sidebar.collapsed .sidebar-logo h2 {
    display: none;
}

.sidebar.collapsed .nav-item a span,
.sidebar.collapsed .nav-category span {
    display: none;
}

.sidebar.collapsed .user-name-text,
.sidebar.collapsed .user-role-badge,
.sidebar.collapsed .logout-text {
    display: none;
}

.sidebar.collapsed .sidebar-logout-btn {
    padding: 0.6rem 0;
}

.sidebar.collapsed .sidebar-logout-btn i {
    margin: 0;
}

.sidebar.collapsed .nav-item a {
    justify-content: center;
    padding: 0.75rem;
}

.sidebar.collapsed .nav-item i {
    margin-right: 0;
    font-size: 1.5rem;
}

.sidebar-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-logo h2 {
    margin: 0;
    font-size: 1.2rem;
    color: var(--primary-color);
    letter-spacing: 1px;
    text-transform: uppercase;
}

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

.nav-item a {
    display: flex;
    align-items: center;
    padding: 0.6rem 0.8rem;
    color: var(--text-muted);
    border-radius: var(--border-radius);
    font-weight: 500;
    font-size: 0.9rem;
}

.nav-item a:hover, .nav-item a.active {
    background-color: rgba(212, 175, 55, 0.1);
    color: var(--primary-color);
}

.nav-item i {
    margin-right: 10px;
    font-size: 1rem;
}

/* Layout: Main Content */
.main-content {
    flex: 1;
    margin-left: 220px;
    padding: 1.5rem;
    padding-top: 90px; /* clear topbar (70px + 20px space) */
    width: calc(100% - 220px);
    transition: margin-left 0.3s ease, width 0.3s ease;
}

.main-content.expanded {
    margin-left: 80px;
    width: calc(100% - 80px);
}

/* Topbar */
.topbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 70px;
    background-color: var(--bg-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 1.5rem;
    border-bottom: 1px solid var(--border-color);
    z-index: 1005;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-align: center;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    color: var(--btn-text-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

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

.btn-danger:hover {
    background-color: #dc2626;
    color: white;
}

/* Cards & Dashboards */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 992px) {
    .grid-cards {
        gap: 1rem;
    }
    .grid-cards .card {
        padding: 1rem;
    }
}

@media (max-width: 768px) {
    .grid-cards {
        grid-template-columns: repeat(4, 1fr);
        gap: 0.5rem;
    }
    .grid-cards .card {
        padding: 0.75rem;
    }
    .grid-cards .card h3 {
        font-size: 0.85rem;
    }
    .grid-cards .card h3 i {
        display: block;
        margin-bottom: 5px;
    }
    .grid-cards .card p {
        font-size: 1.5rem !important;
    }
    .grid-cards .card p:last-child {
        font-size: 0.7rem !important;
        margin-top: 5px !important;
    }
}

@media (max-width: 576px) {
    .grid-cards {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--primary-color);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.2);
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-family: inherit;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.2);
}

/* Tables */
.table-container {
    background-color: var(--bg-card);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    overflow-x: auto;
    overflow-y: hidden;
}

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

.table th, .table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.9rem;
}

.table th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table tr:hover td {
    background-color: rgba(255, 255, 255, 0.03);
}

/* Badges */
.badge {
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-pending { background-color: rgba(245, 158, 11, 0.2); color: var(--warning-color); }
.badge-assigned { background-color: rgba(59, 130, 246, 0.2); color: var(--accent-color); }
.badge-in_progress { background-color: rgba(212, 175, 55, 0.2); color: var(--primary-color); }
.badge-completed { background-color: rgba(16, 185, 129, 0.2); color: var(--success-color); }
.badge-cancelled { background-color: rgba(239, 68, 68, 0.2); color: var(--danger-color); }

/* Login Container */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100vh;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background-color: var(--bg-card);
    padding: 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-header h2 {
    color: var(--primary-color);
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        z-index: 1000;
        width: 100%; /* full size sidebar on mobile */
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    /* Ensure text is visible in mobile sidebar */
    .sidebar.mobile-open .sidebar-logo h2,
    .sidebar.mobile-open .nav-item a span,
    .sidebar.mobile-open .nav-category span {
        display: block !important;
    }
    .sidebar.mobile-open .sidebar-logo img {
        height: 60px !important;
    }
    .sidebar.mobile-open .sidebar-logo {
        justify-content: center !important;
    }
    .sidebar.mobile-open .nav-item a {
        justify-content: flex-start !important;
        padding: 0.75rem 1rem !important;
    }
    .sidebar.mobile-open .nav-item i {
        margin-right: 10px !important;
    }

    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
        padding: 1rem !important;
        padding-top: 90px !important;
    }
    
    .main-content.expanded {
        margin-left: 0 !important;
        width: 100% !important;
    }
    
    .topbar {
        margin-bottom: 0;
        padding: 0 1rem;
    }

    /* Hide topbar user on mobile */
    .desktop-only-user {
        display: none !important;
    }
    
    /* Hide desktop sidebar toggle on mobile */
    .desktop-sidebar-toggle {
        display: none !important;
    }
    
    /* Show mobile sidebar toggle on mobile (right side) */
    .mobile-sidebar-toggle {
        display: block !important;
    }

    /* Show sidebar user on mobile */
    .mobile-only-user {
        display: flex !important;
    }
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 999;
    display: none;
    backdrop-filter: blur(2px);
}

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

/* Topbar user profile: visible on desktop, hidden on mobile */
.desktop-only-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Sidebar user profile: hidden on desktop, shown on mobile */
.mobile-only-user {
    display: none;
}