:root {
    --primary-color: #00aeff; /* A bright blue for accents */
    --primary-hover: #008fcc;
    --background-color: #000000; /* Deep dark blue/purple */
    --glass-bg: rgba(25, 25, 46, 0.6); /* Slightly more opaque for better readability */
    --glass-border: rgba(255, 255, 255, 0.15);
    --text-color: #e0e0e0;
    --text-muted: #a0a0c0;
    --input-bg: rgba(255, 255, 255, 0.05);
    --input-border-focus: var(--primary-color);
    --danger-color: #ff4d4d;
    --success-color: #4CAF50; /* Green for success messages */
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--background-color);
    background-image: linear-gradient(135deg, var(--background-color) 0%, #16222a 100%);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start; /* Changed to flex-start for scrollability */
    min-height: 100vh;
    overflow-y: auto; /* Allow body to scroll */
}

.form-container {
    background: var(--glass-bg);
    padding: 30px 40px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px); /* For Safari */
    width: 100%;
    max-width: 700px;
    margin-top: 20px; /* Give some space from top */
    margin-bottom: 20px; /* Space at bottom */
}

/* Progress Bar */
.progress-bar-container {
    width: 100%;
    margin-bottom: 30px;
}

.progress-bar {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-wrap: wrap;
    justify-content: center;
    justify-content: space-between;
}

.step-indicator {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    border: 2px solid var(--glass-border);
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative; /* For tooltip */
    z-index: 1; /* Ensure indicators are above lines */
}

.step-indicator.active {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: scale(1.1);
}
.step-indicator.completed {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}


.progress-line {
    flex-grow: 1;
    height: 3px;
    background-color: rgba(255, 255, 255, 0.2);
    margin: 0 -2px; /* Overlap slightly with indicators */
    position: relative;
}
.progress-line.active {
    background-color: var(--primary-color);
}

/* Tooltip for progress bar */
.step-indicator .tooltiptext {
    visibility: hidden;
    width: 120px;
    background-color: #555;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 0;
    position: absolute;
    z-index: 1;
    bottom: 125%; /* Position the tooltip above the item */
    left: 50%;
    margin-left: -60px; /* Use half of the width (120/2 = 60), to center the tooltip */
    opacity: 0;
    transition: opacity 0.3s;
}
.step-indicator:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}


.form-step {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.form-step.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h2 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 25px;
    font-weight: 600;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 400;
    color: var(--text-muted);
    font-size: 0.9em;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 18px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1em;
    box-sizing: border-box;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus {
    outline: none;
    border-color: var(--input-border-focus);
    box-shadow: 0 0 0 3px rgba(0, 174, 255, 0.2);
}
input.invalid, textarea.invalid, select.invalid {
    border-color: var(--danger-color) !important;
    box-shadow: 0 0 0 3px rgba(255, 77, 77, 0.2) !important;
}


select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url('data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23e0e0e0%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E');
    background-repeat: no-repeat;
    background-position: right 15px center;
    background-size: 12px;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.button-group {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}

button {
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.next-btn, .submit-btn, .popup-ok-btn {
    background-color: var(--primary-color);
    color: white;
}
.next-btn:hover, .submit-btn:hover, .popup-ok-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

.prev-btn {
    background-color: rgba(255, 255, 255, 0.15);
    color: var(--text-color);
}
.prev-btn:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}
.otp-btn {
    padding: 10px 15px;
    margin-left: 10px;
    background-color: #4a4a70;
    color: white;
}
.otp-btn:hover {
    background-color: #5a5a8a;
}


.radio-group label, .checkbox-group label {
    display: inline-flex; /* Changed to inline-flex for better alignment */
    align-items: center; /* Vertically align items */
    margin-right: 20px;
    margin-bottom: 10px; /* Added margin for spacing */
    color: var(--text-muted);
    font-size: 0.9em;
    cursor: pointer;
}
.radio-group input[type="radio"],
.checkbox-group input[type="checkbox"],
.declaration input[type="checkbox"] {
    margin-right: 8px;
    accent-color: var(--primary-color); /* Modern way to style radio/checkbox color */
    transform: scale(1.2);
}
.declaration {
    font-size: 0.85em;
    color: var(--text-muted);
    display: flex; /* For alignment with checkbox */
    align-items: flex-start; /* Align checkbox with start of text */
    margin-top: 20px;
    line-height: 1.5;
}
.declaration input[type="checkbox"] {
    margin-top: 3px; /* Adjust for alignment */
    margin-right: 10px;
}


.hidden-field, .hidden-message {
    display: none;
    animation: slideDown 0.3s ease-out;
}
.mobile-otp-group {
    display: flex;
    align-items: center;
    margin-bottom: 18px;
}
.mobile-otp-group input[type="tel"] {
    flex-grow: 1;
    margin-bottom: 0; /* Remove bottom margin as it's in a group */
}


@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); max-height: 0; }
    to { opacity: 1; transform: translateY(0); max-height: 500px; /* Adjust if needed */ }
}

.mandatory {
    color: var(--danger-color);
    font-weight: bold;
}

/* Popup Styles */
.popup-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.popup-container:not(.hidden-popup) {
    opacity: 1;
    visibility: visible;
}

.popup-content {
    background: var(--glass-bg);
    padding: 30px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid var(--glass-border);
    text-align: center;
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}
.popup-container:not(.hidden-popup) .popup-content {
    transform: scale(1);
}


.popup-content h2 {
    color: var(--success-color); /* Green for success */
    margin-top: 0;
}
.popup-content p {
    margin-bottom: 15px;
    line-height: 1.6;
    color: var(--text-muted);
}
.popup-content strong {
    color: var(--text-color);
}
.close-popup-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    color: var(--text-muted);
    cursor: pointer;
    transition: color 0.2s ease;
}
.close-popup-btn:hover {
    color: var(--text-color);
}
.popup-ok-btn {
    margin-top: 15px;
    min-width: 120px;
}

/* Footer Links */
.terms-links {
    margin-top: 20px;
    padding: 20px 0;
    text-align: center;
    border-top: 1px solid var(--glass-border);
}

.terms-links a {
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9em;
    transition: color 0.3s ease;
}

.terms-links a:hover {
    color: var(--primary-color);
}

.terms-links .separator {
    margin: 0 10px;
    color: var(--text-muted);
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .form-container {
        padding: 20px;
    }
    
    .progress-bar {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .step-indicator {
        width: 30px;
        height: 30px;
    }
    
    .progress-line {
        display: none;
    }
    
    .step-indicator .tooltiptext {
        display: none;
    }
    
    .form-step {
        padding: 20px 0;
    }
    
    .button-group {
        flex-direction: column;
        gap: 10px;
    }
    
    .footer-links {
        padding: 15px 0;
    }
}

#fileList {
    font-size: 0.85em;
    color: var(--text-muted);
    margin-top: -10px;
    margin-bottom: 15px;
}
#fileList div {
    padding: 3px 0;
}
#reviewDetails p {
    margin: 8px 0;
    line-height: 1.5;
    color: var(--text-muted);
}
#reviewDetails strong {
    color: var(--text-color);
    min-width: 150px; /* Adjust as needed */
    display: inline-block;
}
#reviewDetails hr {
    border: none;
    border-top: 1px solid var(--glass-border);
    margin: 15px 0;
}
#otpStatus {
    font-size: 0.8em;
    display: block;
    margin-top: 5px;
}
#otpStatus.success {
    color: var(--success-color);
}
#otpStatus.error {
    color: var(--danger-color);
}
#emergencyMessage {
    background-color: rgba(255, 77, 77, 0.1);
    border: 1px solid var(--danger-color);
    padding: 15px;
    border-radius: 8px;
    margin-top: 15px;
}
#emergencyMessage strong {
    color: var(--danger-color);
}
#emergencyMessage ul {
    list-style: none;
    padding-left: 0;
}
#emergencyMessage li {
    margin-bottom: 5px;
}