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

        :root {
            --primary-blue: #0066A1;
            --secondary-blue: #4A90C4;
            --light-blue: #E8F4F8;
            --accent-green: #00A878;
            --dark-text: #2C3E50;
            --light-gray: #F5F7FA;
            --border-gray: #E0E6ED;
            --white: #FFFFFF;
        }

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #E8F4F8 0%, #F5F7FA 100%);
            color: var(--dark-text);
            min-height: 100vh;
        }

        /* Header */
        .header {
            background: var(--white);
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
            position: sticky;
            top: 0;
            z-index: 1000;
        }

        .header-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            height: 80px;
        }

        .logo-section {
            display: flex;
            align-items: center;
            gap: 20px;
        }

        .logo {
            font-size: 28px;
            font-weight: 700;
            color: var(--primary-blue);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .logo i {
            font-size: 32px;
        }

        .logo-subtitle {
            font-size: 12px;
            color: #7D8A99;
            font-weight: 400;
            margin-top: 2px;
        }

        .user-section {
            display: flex;
            align-items: center;
            gap: 25px;
        }

        .user-info {
            display: flex;
            align-items: center;
            gap: 15px;
            padding: 10px 20px;
            background: var(--light-blue);
            border-radius: 50px;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .user-info:hover {
            background: var(--secondary-blue);
            color: var(--white);
        }

        .user-avatar {
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--white);
            font-weight: 600;
            font-size: 16px;
        }

        .user-name {
            font-weight: 500;
            font-size: 14px;
        }

        .notifications {
            position: relative;
            cursor: pointer;
            color: var(--primary-blue);
            font-size: 22px;
        }

        .notification-badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background: #E74C3C;
            color: var(--white);
            border-radius: 50%;
            width: 18px;
            height: 18px;
            font-size: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 600;
        }

        /* Navigation */
        .navigation {
            background: var(--white);
            border-bottom: 1px solid var(--border-gray);
        }

        .nav-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            display: flex;
            gap: 5px;
        }

        .nav-item {
            padding: 18px 25px;
            color: var(--dark-text);
            text-decoration: none;
            font-weight: 500;
            font-size: 14px;
            transition: all 0.3s ease;
            border-bottom: 3px solid transparent;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .nav-item:hover, .nav-item.active {
            color: var(--primary-blue);
            border-bottom-color: var(--primary-blue);
            background: var(--light-blue);
        }

        /* Main Container */
        .container {
            max-width: 1400px;
            margin: 0 auto;
            padding: 40px 30px;
        }

        /* Welcome Section */
        .welcome-banner {
            background: linear-gradient(135deg, var(--primary-blue), var(--secondary-blue));
            color: var(--white);
            padding: 35px 40px;
            border-radius: 15px;
            margin-bottom: 40px;
            box-shadow: 0 10px 30px rgba(0, 102, 161, 0.2);
        }

        .welcome-banner h1 {
            font-size: 32px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .welcome-banner p {
            font-size: 16px;
            opacity: 0.95;
        }

        /* Quick Actions */
        .quick-actions {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin-bottom: 40px;
        }

        .quick-action-btn {
            background: var(--white);
            padding: 20px;
            border-radius: 12px;
            text-align: center;
            text-decoration: none;
            color: var(--dark-text);
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .quick-action-btn:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
            border-color: var(--primary-blue);
        }

        .quick-action-btn i {
            font-size: 32px;
            color: var(--primary-blue);
            margin-bottom: 12px;
            display: block;
        }

        .quick-action-btn span {
            display: block;
            font-weight: 500;
            font-size: 14px;
        }

        /* Section Title */
        .section-title {
            font-size: 24px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .section-title i {
            color: var(--primary-blue);
        }

        /* Tiles Grid */
        .tiles-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }

        .tile {
            background: var(--white);
            border-radius: 15px;
            padding: 30px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
            transition: all 0.3s ease;
            cursor: pointer;
            border: 2px solid transparent;
            position: relative;
            overflow: hidden;
        }

        .tile::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--primary-blue), var(--accent-green));
            transform: scaleX(0);
            transition: transform 0.3s ease;
        }

        .tile:hover {
            transform: translateY(-8px);
            box-shadow: 0 12px 35px rgba(0, 0, 0, 0.12);
            border-color: var(--primary-blue);
        }

        .tile:hover::before {
            transform: scaleX(1);
        }

        .tile-icon {
            width: 60px;
            height: 60px;
            background: var(--light-blue);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 20px;
            font-size: 28px;
            color: var(--primary-blue);
        }

        .tile-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--dark-text);
            margin-bottom: 10px;
        }

        .tile-description {
            font-size: 13px;
            color: #7D8A99;
            line-height: 1.6;
        }

        .tile-badge {
            position: absolute;
            top: 15px;
            right: 15px;
            background: var(--accent-green);
            color: var(--white);
            padding: 4px 10px;
            border-radius: 20px;
            font-size: 11px;
            font-weight: 600;
        }

        /* Info Cards */
        .info-cards {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin-bottom: 40px;
        }

        .info-card {
            background: var(--white);
            border-radius: 15px;
            padding: 25px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
        }

        .info-card-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 20px;
            padding-bottom: 15px;
            border-bottom: 2px solid var(--light-blue);
        }

        .info-card-title {
            font-size: 18px;
            font-weight: 600;
            color: var(--dark-text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .info-card-title i {
            color: var(--primary-blue);
        }

        .info-card-link {
            color: var(--primary-blue);
            font-size: 13px;
            text-decoration: none;
            font-weight: 500;
        }

        .info-card-link:hover {
            text-decoration: underline;
        }

        .info-list {
            list-style: none;
        }

        .info-list-item {
            padding: 12px 0;
            border-bottom: 1px solid var(--light-gray);
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .info-list-item:last-child {
            border-bottom: none;
        }

        .info-list-item i {
            color: var(--accent-green);
            font-size: 16px;
        }

        .info-list-item span {
            font-size: 14px;
            color: var(--dark-text);
        }

        .info-date {
            font-size: 12px;
            color: #7D8A99;
            margin-left: auto;
        }

        /* Footer */
        .footer {
            background: var(--white);
            padding: 30px 0;
            margin-top: 60px;
            border-top: 1px solid var(--border-gray);
        }

        .footer-content {
            max-width: 1400px;
            margin: 0 auto;
            padding: 0 30px;
            text-align: center;
            color: #7D8A99;
            font-size: 14px;
        }

        /* Department Colors */
        .dept-pediatric { background: linear-gradient(135deg, #FF6B9D, #FFA8CC); }
        .dept-surgery { background: linear-gradient(135deg, #4A90E2, #63B3ED); }
        .dept-rehab { background: linear-gradient(135deg, #00A878, #2DD4BF); }
        .dept-diagnostic { background: linear-gradient(135deg, #9B59B6, #BB6BD9); }
        .dept-admin { background: linear-gradient(135deg, #F39C12, #F8B500); }

        /* Responsive */
        @media (max-width: 768px) {
            .header-content {
                padding: 0 20px;
                height: 70px;
            }

            .logo {
                font-size: 20px;
            }

            .user-name {
                display: none;
            }

            .nav-content {
                overflow-x: auto;
                padding: 0 20px;
            }

            .container {
                padding: 30px 20px;
            }

            .welcome-banner h1 {
                font-size: 24px;
            }

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

            .quick-actions {
                grid-template-columns: repeat(2, 1fr);
            }
        }

a.tile { text-decoration: none; color: inherit; display: block; }