html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    background-color: #f0f2f5;
    font-family: 'Roboto', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Phone screen layout */
.phone-screen {
    width: 375px;
    height: 750px;
    background-color: #ffffff;
    border-radius: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* Header styling */
.header h1 {
    font-size: 24px;
    margin-bottom: 5px;
}

.header p {
    color: #6c757d;
    margin-top: 0;
}

/* Rating section */
.rating-section {
    margin: 20px 0;
}

.star {
    font-size: 40px;
    color: #ffc107;
    cursor: pointer;
}

.star.faded {
    color: #e0e0e0;
}

/* Submit button */
.submit-btn {
    background-color: #32BB78; /* Bolt Green */
    color: white;
    border: none;
    border-radius: 25px;
    padding: 15px 0;
    width: 90%;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 10px;
}

/* Divider line */
.divider {
    width: 90%;
    height: 1px;
    background-color: #e9ecef;
    margin: 40px 0;
}

/* Next step content */
.next-step-box {
    width: 100%;
}

.next-step-box h2 {
    font-size: 20px;
    margin-bottom: 20px;
}

/* --- The Loading Spinner --- */
.loader {
    border: 5px solid #f3f3f3;
    border-top: 5px solid #32BB78; /* Bolt Green */
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}


@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.simulation-buttons {
    display: flex;
    justify-content: space-around;
    width: 90%;
    margin-top: 10px;
    margin-bottom: 10px;
}

.simulation-buttons a {
    color: #32BB78;
    text-decoration: none;
    font-weight: 500;
}

.suggestion-text {
    font-size: 16px;
    color: #333;
    line-height: 1.5;
    padding: 0 15px;
    margin: 10px 0;
}

.suggestion-btn {
    background-color: #32BB78; /* Bolt Green */
    color: white;
    border: none;
    border-radius: 25px;
    padding: 15px 0;
    width: 80%;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    margin-top: 20px;
}

.error-text {
    color: #dc3545;
    font-size: 16px;
    padding: 0 15px;
}