:root {
    --bg-color: #f7faff;
    --card-bg-color: #ffffff;
    --primary-color: #5a9bd5;
    --primary-light-color: #eaf2fa;
    --text-color: #3f3d56;
    --label-color: #6e6d7a;
    --border-color: #dce1e7;
    --shadow-color: rgba(90, 155, 213, 0.15);
    --font-family: 'Poppins', sans-serif;
    --signature-font: 'Caveat', cursive;
    --id-main-bg: #004080;
    --id-accent-color: #5a9bd5;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
    padding: 2rem;
}

.app-container {
    width: 100%;
    max-width: 1200px;
}

.app-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.app-header h1 {
    color: var(--primary-color);
    font-weight: 700;
}

.app-header p {
    color: var(--label-color);
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
    align-items: start;
}

.card {
    background-color: var(--card-bg-color);
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--shadow-color);
    padding: 2rem;
}

/* Form Styles */
fieldset {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

legend {
    padding: 0 0.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group:last-child {
    margin-bottom: 0;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--label-color);
    font-weight: 500;
    font-size: 0.9rem;
}

.form-group input[type="text"],
.form-group input[type="tel"] {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: var(--font-family);
    font-size: 1rem;
    color: var(--text-color); /* Fix for input text color */
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    background-color: #fdfdff;
}

.form-group input[type="text"]:focus,
.form-group input[type="tel"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light-color);
}

.file-group input[type="file"] {
    width: 0.1px;
	height: 0.1px;
	opacity: 0;
	overflow: hidden;
	position: absolute;
	z-index: -1;
}

.file-label {
    display: inline-block;
    padding: 0.75rem 1.25rem;
    background-color: var(--primary-light-color);
    color: var(--primary-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 500;
    transition: background-color 0.3s ease;
}

.file-label:hover, .file-label:focus {
    background-color: #d8e6f5;
}

#file-name, #college-logo-name, #signature-upload-name {
    margin-left: 1rem;
    color: var(--label-color);
    font-style: italic;
    font-size: 0.9rem;
}

/* Radio Button Styling */
.radio-group div {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.radio-group input[type="radio"] {
    display: none;
}

.radio-group label {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.radio-group input[type="radio"]:checked + label {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.btn {
    display: block;
    width: 100%;
    padding: 0.85rem;
    border: none;
    border-radius: 8px;
    background-color: var(--primary-color);
    color: white;
    font-family: var(--font-family);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    margin-top: 1rem;
}

.btn:hover:not(:disabled) {
    background-color: #4a8ac7;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(90, 155, 213, 0.4);
}

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


/* ID Card Styling */
.preview-container {
    position: sticky;
    top: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

#id-card-wrapper {
    margin-bottom: 1.5rem;
}

#id-card {
    width: 320px;
    height: 512px;
    background-color: #fff;
    border: 1px solid #e9e9e9;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    color: #000;
}

.id-card-header {
    background-color: var(--card-bg-color);
    padding: 10px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid #f0f0f0;
}

.id-card-header .logo {
    width: 45px;
    height: 45px;
    margin-right: 10px;
    flex-shrink: 0;
}

.id-card-header .logo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.id-card-header .college-info {
    text-align: center;
    flex-grow: 1;
}

.id-card-header .college-info h3 {
    font-size: 12px;
    font-weight: 700;
    color: var(--id-main-bg);
    line-height: 1.2;
}

.id-card-header .college-info p {
    font-size: 7px;
    font-weight: 500;
}

.id-card-body {
    display: flex;
    flex-grow: 1;
}

.vertical-text {
    background-color: var(--id-main-bg);
    color: white;
    writing-mode: vertical-rl;
    text-orientation: mixed;
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 0 5px;
    font-size: 18px;
    font-weight: 700;
    letter-spacing: 2px;
}

.student-details {
    padding: 15px 10px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    font-size: 11px;
}

.details-section {
    text-align: center;
}

.details-section p {
    font-size: 10px;
    font-weight: 500;
}

.details-section h4 {
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 1px;
    color: var(--id-accent-color);
}

.photo-section {
    text-align: center;
    margin: 10px 0;
}

#preview-photo {
    width: 90px;
    height: 110px;
    object-fit: cover;
    border: 3px solid #f0f0f0;
    border-radius: 8px;
    background-color: #f0f0f0;
}

.details-text p {
    font-size: 11px;
    margin-bottom: 6px;
    line-height: 1.4;
}

.details-text p strong {
    font-weight: 600;
    margin-left: 5px;
}

.signature {
    text-align: center;
    margin-top: auto;
}

#preview-signature-container {
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
}

#preview-signature-text {
    font-family: var(--signature-font);
    font-size: 28px;
    color: #333;
}

#preview-signature-img {
    max-height: 40px;
    max-width: 150px;
    object-fit: contain;
}


.signature p {
    font-size: 10px;
    border-top: 1px solid #ccc;
    padding-top: 2px;
    margin: 0 20px;
}

.id-card-footer {
    background-color: var(--id-main-bg);
    color: white;
    text-align: center;
    padding: 8px;
}

.id-card-footer p {
    font-size: 8px;
    line-height: 1.3;
}
.id-card-footer .address {
    font-size: 7px;
}

/* Responsive */
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    .preview-container {
        position: static;
        margin-top: 2.5rem;
    }
}

@media (max-width: 768px) {
    body {
        padding: 1rem;
    }
    .card {
        padding: 1.5rem;
    }
    .app-header {
        margin-bottom: 2rem;
    }
}