:root {
            --primary-req: #2563EB;
            --primary-ren: #059669;
            --bg-body: #F9FAFB;
            --text-main: #111827;
            --text-muted: #6B7280;
            --border: #F3F4F6;
            --radius-2xl: 1.5rem;
            --radius-lg: 1rem;
            --shadow-soft: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            -webkit-tap-highlight-color: transparent;
        }

        body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--bg-body);
            color: var(--text-main);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 1.5rem;
        }

        .app-shell {
            width: 100%;
            max-width: 440px;
            display: flex;
            flex-direction: column;
            gap: 2rem;
            margin: auto;
        }

        /* Branding */
        .brand-section {
            text-align: center;
        }

        .logo-mark {
            width: 56px;
            height: 66px;
            background: var(--text-main);
            color: white;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            margin: 0 auto 1.25rem;
            box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        }

		.logo-mark img{
			width: clamp(48px, 12vw, 64px);
            height: clamp(48px, 12vw, 64px);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;

			background-color: #111827;
			padding: 0.6rem;
			margin: 0rem;
		}

        .brand-section h1 {
            font-size: clamp(1.5rem, 5vw, 1.85rem);
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 0.75rem;
        }

        .brand-section p {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.5;
            padding: 0 0.5rem;
        }

        /* Role Selection Grid */
        .selection-grid {
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .portal-card {
            background: white;
            border: 1px solid var(--border);
            padding: clamp(1.25rem, 4vw, 1.75rem);
            border-radius: var(--radius-lg);
            display: flex;
            align-items: center;
            gap: 1.25rem;
            cursor: pointer;
            transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            box-shadow: var(--shadow-soft);
            text-decoration: none;
        }

        .portal-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            border-color: transparent;
        }

        .portal-card:active {
            transform: scale(0.97);
        }

        img {
            width: clamp(48px, 12vw, 64px);
            height: clamp(48px, 12vw, 64px);
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 2rem;
            flex-shrink: 0;
            transition: transform 0.3s ease;

			background-color: #111827;
			padding: 0.6rem;
			margin: 0rem;
		
        }

        /* Requester Theme */
        .card-req .icon-box { background: #EFF6FF; color: var(--primary-req); }
        .card-req:hover { background: linear-gradient(to right bottom, #ffffff, #f0f7ff); }
        
        /* Renderer Theme */
        .card-ren .icon-box { background: #ECFDF5; color: var(--primary-ren); }
        .card-ren:hover { background: linear-gradient(to right bottom, #ffffff, #f5fdf9); }

        .card-content {
            flex: 1;
        }

        .card-content h3 {
            font-size: 1.15rem;
            font-weight: 700;
            margin-bottom: 0.35rem;
        }

        .card-content p {
            font-size: 0.9rem;
            color: var(--text-muted);
            line-height: 1.5;
        }

        .chevron {
            color: #D1D5DB;
            font-size: 0.9rem;
            transition: transform 0.2s ease;
        }

        @media (max-width: 360px) {
            .portal-card {
                padding: 1rem;
                gap: 1rem;
            }
            .icon-box {
                width: 44px;
                height: 44px;
                font-size: 1.1rem;
            }
            .card-content h3 {
                font-size: 1rem;
            }
            .card-content p {
                font-size: 0.8rem;
            }
        }

        /* App Bar Style Bottom (Mobile App Feel) */
        .bottom-nav {
            text-align: center;
            margin-top: 1rem;
        }

        .lang-toggle {
            display: inline-flex;
            align-items: center;
            gap: 0.5rem;
            padding: 0.5rem 1rem;
            background: white;
            border: 1px solid var(--border);
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--text-muted);
            cursor: pointer;
        }

        .status-dot {
            width: 8px;
            height: 8px;
            background: #10B981;
            border-radius: 50%;
            display: inline-block;
            margin-right: 4px;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .selection-grid > * {
            animation: fadeIn 0.5s ease forwards;
        }

        .card-ren { animation-delay: 0.1s; }