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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: #1a202c;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Survey Banner */
.survey-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #ff6b6b, #ff8e53);
    color: white;
    padding: 0.8rem 0;
    z-index: 1001;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    animation: slideDown 0.5s ease-out;
}

.banner-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    justify-content: center;
}

.banner-icon {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

.banner-text {
    font-size: 0.95rem;
    font-weight: 500;
}

.banner-text strong {
    font-weight: 700;
}

.banner-cta {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    padding: 0.4rem 1rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.banner-cta:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

.banner-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    transition: all 0.3s ease;
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
}

.banner-close:hover {
    background: rgba(255, 255, 255, 0.3);
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-3px);
    }
    60% {
        transform: translateY(-2px);
    }
}

/* Header */
header {
    position: fixed;
    top: 50px;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    transition: all 0.3s ease;
}

.survey-banner.hidden + header {
    top: 0;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #667eea;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 50%, #ec4899 100%);
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 120px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="rgba(255,255,255,0.1)" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
    color: white;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.4rem);
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.coming-soon {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    padding: 0.8rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 3rem;
    display: inline-block;
    backdrop-filter: blur(10px);
}

.app-stores {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
}

.store-button {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.store-button:hover {
    background: rgba(0, 0, 0, 0.9);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.store-button i {
    font-size: 1.5rem;
}

/* CTA Buttons */
.cta-buttons {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    align-items: center;
}

.survey-cta-button {
    background: linear-gradient(135deg, #ff6b6b, #ff8e53);
    color: white;
    padding: 0;
    border: none;
    border-radius: 20px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1rem;
    box-shadow: 0 8px 30px rgba(255, 107, 107, 0.4);
    position: relative;
    overflow: hidden;
    max-width: 500px;
    width: 100%;
}

.survey-cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.6s ease;
}

.survey-cta-button:hover::before {
    left: 100%;
}

.survey-cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(255, 107, 107, 0.6);
}

.cta-content {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    padding: 1.2rem 1.5rem;
}

.cta-badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    animation: pulse 2s infinite;
}

.cta-text {
    display: flex;
    flex-direction: column;
    text-align: left;
}

.cta-text strong {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
}

.cta-text span {
    font-size: 0.9rem;
    opacity: 0.9;
    font-weight: 500;
}

.survey-cta-button i {
    margin-right: 1.5rem;
    font-size: 1.2rem;
    transition: transform 0.3s ease;
}

.survey-cta-button:hover i {
    transform: translateX(5px);
}

.cta-button {
    background: rgba(255, 255, 255, 0.15);
    color: white;
    padding: 1rem 2.5rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    backdrop-filter: blur(10px);
}

.cta-button:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.cta-button.secondary {
    background: transparent;
    border-color: rgba(255, 255, 255, 0.4);
}

.cta-button.secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: #f8fafc;
}

/* CTA Section */
.cta-section {
    padding: 5rem 0;
    background: white;
}

.cta-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.cta-card {
    background: #f8fafc;
    border-radius: 20px;
    padding: 2.5rem;
    text-align: center;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
}

.cta-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: #4f46e5;
}

.cta-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.cta-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 1rem;
}

.cta-card p {
    color: #475569;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.cta-btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 25px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.cta-btn.primary {
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    color: white;
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.cta-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.4);
}

.cta-btn.secondary {
    background: white;
    color: #4f46e5;
    border: 2px solid #4f46e5;
}

.cta-btn.secondary:hover {
    background: #4f46e5;
    color: white;
    transform: translateY(-2px);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #4f46e5, #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #475569;
    margin-bottom: 4rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
    line-height: 1.6;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: white;
    font-size: 2rem;
    box-shadow: 0 8px 25px rgba(79, 70, 229, 0.3);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: #1e293b;
}

.feature-card p {
    color: #718096;
    line-height: 1.6;
}

/* Questionnaire Section */
.questionnaire {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

.questionnaire .section-title,
.questionnaire .section-subtitle {
    color: white;
}

.quiz-container {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 20px;
    padding: 3rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Progress Bar */
.quiz-progress {
    margin-bottom: 3rem;
    text-align: center;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 4px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    width: 9.09%;
    transition: width 0.3s ease;
    border-radius: 4px;
}

.progress-text {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* Section Headers */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.section-header h3 {
    font-size: 1.5rem;
    font-weight: 600;
}

.section-progress {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-size: 0.85rem;
}

/* Question Sections */
.question-section {
    display: none;
}

.question-section.active {
    display: block;
}

.question {
    margin-bottom: 3rem;
}

.question h4 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
    line-height: 1.4;
}

.options {
    display: grid;
    gap: 1rem;
}

/* Card Option Styling */
.card-option {
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 16px;
    padding: 0;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: left;
    overflow: hidden;
}

.card-option:hover {
    background: rgba(255, 255, 255, 0.18);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
}

.card-option.selected {
    background: rgba(255, 255, 255, 0.25);
    border-color: #667eea;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.option-content {
    display: flex;
    align-items: center;
    padding: 1.2rem;
    gap: 1rem;
}

.option-icon {
    font-size: 1.5rem;
    min-width: 2rem;
    text-align: center;
}

.option-text {
    flex: 1;
}

.option-text strong {
    display: block;
    font-weight: 600;
    margin-bottom: 0.3rem;
}

.option-text span {
    font-size: 0.9rem;
    opacity: 0.8;
    line-height: 1.3;
}

/* Hide radio buttons and checkboxes */
.card-option input[type="radio"],
.card-option input[type="checkbox"] {
    display: none;
}

/* Checkbox Grid */
.checkbox-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.checkbox-option {
    position: relative;
}

.checkbox-option::after {
    content: '';
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 4px;
    background: transparent;
    transition: all 0.3s ease;
}

.checkbox-option.selected::after {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-option.selected::before {
    content: '✓';
    position: absolute;
    top: 1.1rem;
    right: 1.3rem;
    color: white;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 1;
}

/* Age Options */
.age-options {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    max-width: 600px;
}

.age-option .option-content {
    justify-content: center;
    padding: 1rem;
}

.age-option .option-text {
    text-align: center;
    font-weight: 600;
    font-size: 1.1rem;
}

/* Navigation Buttons */
.quiz-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.nav-button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-button:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.nav-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.submit-quiz {
    background: white;
    color: #f5576c;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 auto;
}

.submit-quiz:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

/* Footer */
footer {
    background: #2d3748;
    color: white;
    padding: 3rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: #667eea;
}

.footer-section p,
.footer-section a {
    color: #a0aec0;
    text-decoration: none;
    line-height: 1.8;
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: #667eea;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: #764ba2;
    transform: translateY(-2px);
}

.footer-bottom {
    border-top: 1px solid #4a5568;
    padding-top: 2rem;
    text-align: center;
    color: #a0aec0;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .app-stores {
        flex-direction: column;
        align-items: center;
    }

    .quiz-container {
        padding: 2rem 1rem;
    }

    /* Mobile questionnaire adjustments */
    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

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

    .age-options {
        grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    }

    .option-content {
        padding: 1rem;
        gap: 0.8rem;
    }

    .option-icon {
        font-size: 1.3rem;
        min-width: 1.5rem;
    }

    .option-text strong {
        font-size: 0.95rem;
    }

    .option-text span {
        font-size: 0.85rem;
    }

    .quiz-navigation {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-button,
    .submit-quiz {
        width: 100%;
        justify-content: center;
    }

    .question h4 {
        font-size: 1.1rem;
        line-height: 1.3;
    }
}

/* Success Message */
.success-message {
    background: #48bb78;
    color: white;
    padding: 1rem;
    border-radius: 12px;
    text-align: center;
    margin-top: 1rem;
    display: none;
}