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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background: #f8fafc;
    min-height: 100vh;
    padding: 20px;
    color: #2d3748;
}

.container {
    max-width: 800px;
    margin: 0 auto;
}

h1 {
    text-align: center;
    color: #2d3748;
    margin-bottom: 40px;
    font-size: 2.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.card-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    background: #ffffff;
    padding: 20px 25px;
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
}

.nav-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 28px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 15px;
    font-weight: 600;
    box-shadow: 0 4px 20px rgba(102, 126, 234, 0.3);
}

/* Removed shimmer animation */

.nav-btn:hover {
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

/* Removed transform animation */

.nav-btn:disabled {
    background: #e2e8f0;
    color: #a0aec0;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.card-counter-top {
    text-align: center;
    margin-bottom: 20px;
}

.card-counter {
    color: #4a5568;
    font-size: 16px;
    font-weight: 600;
    background: #ffffff;
    padding: 10px 20px;
    border-radius: 25px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    display: inline-block;
}

.random-btn {
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%) !important;
    font-size: 14px;
    padding: 12px 20px;
    box-shadow: 0 4px 20px rgba(255, 107, 53, 0.3) !important;
}

.random-btn:hover {
    box-shadow: 0 8px 25px rgba(255, 107, 53, 0.4) !important;
}

.card-container {
    position: relative;
    min-height: 500px;
}

.feedback-card {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
    padding: 40px;
    margin-bottom: 20px;
    position: absolute;
    width: 100%;
    top: 0;
    left: 0;
    border: 1px solid #e2e8f0;
    overflow: hidden;
}

.feedback-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.feedback-card:hover {
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.1);
}

.card-header {
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 20px;
    margin-bottom: 30px;
    position: relative;
}

.card-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.card-header h2 {
    color: #2d3748;
    font-size: 1.9rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.card-content {
    display: grid;
    gap: 20px;
}

.feedback-section {
    background: #f7fafc;
    padding: 24px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    position: relative;
}

.feedback-section::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 4px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 0 2px 2px 0;
}

.feedback-section:hover {
    background: #edf2f7;
}

.feedback-section h3 {
    color: #2d3748;
    margin-bottom: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.feedback-section h3::before {
    content: '';
    width: 6px;
    height: 6px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 50%;
}

.feedback-section p {
    color: #4a5568;
    line-height: 1.7;
    font-size: 15px;
    margin: 0;
}

.interest-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 18px;
    border-radius: 25px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 13px;
    letter-spacing: 0.5px;
}

.interest-badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.interest-badge.yes {
    background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(72, 187, 120, 0.3);
}

.interest-badge.yes::before {
    background: rgba(255, 255, 255, 0.8);
}

.interest-badge.no {
    background: linear-gradient(135deg, #f56565 0%, #e53e3e 100%);
    color: white;
    box-shadow: 0 4px 15px rgba(245, 101, 101, 0.3);
}

.interest-badge.no::before {
    background: rgba(255, 255, 255, 0.8);
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 15px;
    }

    .container {
        padding: 0;
    }

    h1 {
        font-size: 2.2rem;
        margin-bottom: 30px;
    }

    .feedback-card {
        padding: 25px;
        border-radius: 16px;
    }

    .card-navigation {
        flex-direction: column;
        gap: 15px;
        padding: 20px;
    }

    .nav-btn {
        width: 100%;
        max-width: 250px;
        padding: 16px 24px;
    }

    .feedback-section {
        padding: 20px;
    }

    .feedback-section h3 {
        font-size: 1rem;
    }

    .feedback-section p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }

    .feedback-card {
        padding: 20px;
    }

    .card-header h2 {
        font-size: 1.5rem;
    }
}
/* A
dditional professional enhancements */
.card-container {
    position: relative;
    min-height: 600px;
}

/* Cards without animations */
.feedback-card {
    opacity: 1;
}

/* Button active state without animation */
.nav-btn:active {
    opacity: 0.9;
}

/* Focus states for accessibility */
.nav-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.3);
}

/* Enhanced typography */
.feedback-section p {
    text-align: justify;
    hyphens: auto;
}

/* Sections without animations */

/* Professional scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(102, 126, 234, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(102, 126, 234, 0.5);
}