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

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(-45deg, #667eea, #764ba2, #f093fb, #f5576c);
            background-size: 400% 400%;
            animation: gradientBG 15s ease infinite;
            min-height: 100vh;
            color: #333;
            overflow-x: hidden;
        }

        @keyframes gradientBG {
            0% { background-position: 0% 50%; }
            50% { background-position: 100% 50%; }
            100% { background-position: 0% 50%; }
        }

        /* Floating particles */
        .particles {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            pointer-events: none;
            z-index: 1;
        }

        .particle {
            position: absolute;
            width: 4px;
            height: 4px;
            background: rgba(255, 255, 255, 0.6);
            border-radius: 50%;
            animation: float 6s infinite linear;
        }

        @keyframes float {
            0% {
                transform: translateY(100vh) rotate(0deg);
                opacity: 0;
            }
            10% {
                opacity: 1;
            }
            90% {
                opacity: 1;
            }
            100% {
                transform: translateY(-100px) rotate(360deg);
                opacity: 0;
            }
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            position: relative;
            z-index: 2;
        }

        .header {
            text-align: center;
            margin-bottom: 40px;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 40px;
            border-radius: 30px;
            box-shadow: 
                0 8px 32px rgba(31, 38, 135, 0.37),
                inset 0 1px 0 rgba(255, 255, 255, 0.4);
            position: relative;
            overflow: hidden;
        }

        .header::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
            transform: rotate(45deg);
            animation: shimmer 3s infinite;
        }

        @keyframes shimmer {
            0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
            100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
        }

        .hospital-logo {
            width: 100px;
            height: 100px;
            background: linear-gradient(135deg, #00d4ff, #090979);
            border-radius: 50%;
            margin: 0 auto 25px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            font-size: 45px;
            box-shadow: 
                0 20px 40px rgba(0, 212, 255, 0.3),
                0 0 0 10px rgba(255, 255, 255, 0.1);
            animation: pulse 2s infinite;
            position: relative;
            z-index: 1;
        }

        @keyframes pulse {
            0%, 100% { transform: scale(1); }
            50% { transform: scale(1.05); }
        }

        .header h1 {
            color: white;
            font-size: 2.8em;
            margin-bottom: 15px;
            font-weight: 800;
            text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
            letter-spacing: -1px;
            position: relative;
            z-index: 1;
        }

        .header p {
            color: rgba(255, 255, 255, 0.9);
            font-size: 1.2em;
            font-weight: 500;
            position: relative;
            z-index: 1;
        }

        /* Enhanced Modal */
        .modal {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.8);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            backdrop-filter: blur(10px);
            animation: modalFadeIn 0.5s ease-out;
        }

        @keyframes modalFadeIn {
            from { opacity: 0; }
            to { opacity: 1; }
        }

        .modal-content {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 50px;
            border-radius: 25px;
            box-shadow: 
                0 25px 50px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
            max-width: 550px;
            width: 90%;
            max-height: 90vh;
            overflow-y: auto;
            animation: modalSlideIn 0.5s ease-out;
            position: relative;
        }

        @keyframes modalSlideIn {
            from { 
                opacity: 0;
                transform: translateY(50px) scale(0.9);
            }
            to { 
                opacity: 1;
                transform: translateY(0) scale(1);
            }
        }

        .modal h2 {
            color: #2c3e50;
            text-align: center;
            margin-bottom: 35px;
            font-size: 2em;
            font-weight: 700;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
        }

        .form-group {
            margin-bottom: 25px;
            position: relative;
        }

        .form-group label {
            display: block;
            margin-bottom: 0px;
            color: #2c3e50;
            font-weight: 600;
            font-size: 1em;
            transition: all 0.3s ease;
        }

        .form-group input,
        .form-group select {
            width: 100%;
            padding: 10px 14px;
            border: 2px solid rgba(52, 152, 219, 0.2);
            border-radius: 15px;
            font-size: 1em;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            font-family: 'Inter', sans-serif;
        }

        .form-group input:focus,
        .form-group select:focus {
            outline: none;
            border-color: #3498db;
            background: rgba(255, 255, 255, 1);
            box-shadow: 
                0 0 0 4px rgba(52, 152, 219, 0.1),
                0 10px 25px rgba(52, 152, 219, 0.2);
            transform: translateY(-2px);
        }

        .continue-btn {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            border: none;
            border-radius: 15px;
            font-size: 1.2em;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            margin-top: 0px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
        }

        .continue-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .continue-btn:hover::before {
            left: 100%;
        }

        .continue-btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 20px 40px rgba(102, 126, 234, 0.6);
        }

        .continue-btn:active {
            transform: translateY(-1px);
        }

        /* Enhanced Survey Content */

        /* Stylish Dropdown Select */
.custom-select-wrapper {
    position: relative;
    display: inline-block;
    width: 100%;
}

.custom-select-wrapper select {
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 15px;
    padding: 14px 18px;
    font-size: 1em;
    width: 100%;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.custom-select-wrapper::after {
    content: "\f078"; /* Font Awesome caret-down */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: rgba(44, 62, 80, 0.5);
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.custom-select-wrapper select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow:
        0 0 0 4px rgba(102, 126, 234, 0.1),
        0 10px 25px rgba(102, 126, 234, 0.2);
    background: rgba(255, 255, 255, 0.95);
}

.custom-select-wrapper select:hover {
    background: rgba(255, 255, 255, 0.95);
}

.custom-select-wrapper select:focus + .fa-caret-down,
.custom-select-wrapper select:hover + .fa-caret-down {
    color: #667eea;
}

        .survey-content {
            display: none;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            padding: 50px;
            border-radius: 30px;
            box-shadow: 
                0 8px 32px rgba(31, 38, 135, 0.37),
                inset 0 1px 0 rgba(255, 255, 255, 0.4);
            flex: 1;
            animation: contentFadeIn 0.8s ease-out;
        }

        @keyframes contentFadeIn {
            from { 
                opacity: 0;
                transform: translateY(30px);
            }
            to { 
                opacity: 1;
                transform: translateY(0);
            }
        }

        .progress-container {
            margin-bottom: 40px;
            text-align: center;
        }

        .progress-text {
            color: white;
            font-weight: 600;
            margin-bottom: 15px;
            font-size: 1.1em;
        }

        .progress-bar {
            width: 100%;
            height: 8px;
            background: rgba(255, 255, 255, 0.2);
            border-radius: 10px;
            overflow: hidden;
            position: relative;
        }

        .progress {
            height: 100%;
            background: linear-gradient(90deg, #00d4ff, #090979);
            border-radius: 10px;
            transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
            width: 0%;
            position: relative;
            box-shadow: 0 0 20px rgba(0, 212, 255, 0.6);
        }

        .progress::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
            animation: progressShine 2s infinite;
        }

        @keyframes progressShine {
            0% { transform: translateX(-100%); }
            100% { transform: translateX(100%); }
        }

        .question-card {
            background: rgba(255, 255, 255, 0.488);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 35px;
            border-radius: 20px;
            margin-bottom: 30px;
            box-shadow: 
                0 10px 30px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
        }

        .question-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #667eea, #764ba2);
            border-radius: 20px 20px 0 0;
        }

        .question-card:hover {
            transform: translateY(-5px);
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.15),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
        }

        .question-title {
            color: #2c3e50;
            font-size: 1.25em;
            font-weight: 600;
            margin-bottom: 25px;
            display: flex;
            align-items: flex-start;
            gap: 15px;
            line-height: 1.5;
        }

        .question-number {
            background: linear-gradient(135deg, #667eea, #764ba2);
            color: white;
            width: 35px;
            height: 35px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9em;
            flex-shrink: 0;
            box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
        }

        .options {
            display: grid;
            gap: 15px;
        }

        .option {
            display: flex;
            align-items: center;
            padding: 18px 20px;
            border: 2px solid rgba(52, 152, 219, 0.2);
            border-radius: 15px;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            background: rgba(255, 255, 255, 0.7);
            backdrop-filter: blur(10px);
            position: relative;
            overflow: hidden;
        }

        .option::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
            transition: left 0.6s ease;
        }

        .option:hover::before {
            left: 100%;
        }

        .option:hover {
            border-color: #667eea;
            background: rgba(102, 126, 234, 0.1);
            transform: translateX(5px);
        }

        .option input[type="radio"] {
            margin-right: 15px;
            transform: scale(1.3);
            accent-color: #667eea;
        }

        .option span {
            font-weight: 500;
            color: #2c3e50;
        }

        .option.selected {
            border-color: #667eea;
            background: linear-gradient(135deg, rgba(102, 126, 234, 0.2), rgba(118, 75, 162, 0.2));
            transform: translateX(5px);
            box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
        }

        .suggestions-section {
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(20px);
            border: 1px solid rgba(255, 255, 255, 0.3);
            padding: 35px;
            border-radius: 20px;
            box-shadow: 
                0 10px 30px rgba(0, 0, 0, 0.1),
                inset 0 1px 0 rgba(255, 255, 255, 0.6);
            margin-top: 35px;
            position: relative;
            overflow: hidden;
        }

        .suggestions-section::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, #f093fb, #f5576c);
            border-radius: 20px 20px 0 0;
        }

        .suggestions-section h3 {
            color: #2c3e50;
            margin-bottom: 25px;
            display: flex;
            align-items: center;
            gap: 15px;
            font-size: 1.4em;
            font-weight: 700;
        }

        .suggestions-section textarea {
            width: 100%;
            padding: 20px;
            border: 2px solid rgba(52, 152, 219, 0.2);
            border-radius: 15px;
            font-size: 1em;
            min-height: 140px;
            resize: vertical;
            background: rgba(255, 255, 255, 0.9);
            backdrop-filter: blur(10px);
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            font-family: 'Inter', sans-serif;
        }

        .suggestions-section textarea:focus {
            outline: none;
            border-color: #3498db;
            background: rgba(255, 255, 255, 1);
            box-shadow: 
                0 0 0 4px rgba(52, 152, 219, 0.1),
                0 10px 25px rgba(52, 152, 219, 0.2);
            transform: translateY(-2px);
        }

        .submit-btn {
            width: 100%;
            padding: 22px;
            background: linear-gradient(135deg, #f093fb, #f5576c);
            color: white;
            border: none;
            border-radius: 15px;
            font-size: 1.3em;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            margin-top: 35px;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            position: relative;
            overflow: hidden;
            box-shadow: 0 15px 35px rgba(245, 87, 108, 0.4);
        }

        .submit-btn::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
            transition: left 0.5s;
        }

        .submit-btn:hover::before {
            left: 100%;
        }

        .submit-btn:hover {
            transform: translateY(-4px);
            box-shadow: 0 25px 50px rgba(245, 87, 108, 0.6);
        }

        .submit-btn:active {
            transform: translateY(-2px);
        }

        /* Responsive */
        @media (max-width: 768px) {
            .container {
                padding: 15px;
            }
            
            .header, .modal-content, .survey-content {
                padding: 30px 20px;
            }
            
            .header h1 {
                font-size: 2.2em;
            }
            
            .question-card, .suggestions-section {
                padding: 25px 20px;
            }
            
            .hospital-logo {
                width: 80px;
                height: 80px;
                font-size: 35px;
            }
        }
@media (max-width: 480px) {
    .modal-content {
        padding: 10px 20px;
    }
}

        .hidden {
            display: none;
        }

        /* Loading animation */
        .loading {
            display: inline-block;
            width: 20px;
            height: 20px;
            border: 3px solid rgba(255, 255, 255, 0.3);
            border-radius: 50%;
            border-top-color: #fff;
            animation: spin 1s ease-in-out infinite;
        }

        @keyframes spin {
            to { transform: rotate(360deg); }
        }