/* General Styling */
body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f7fc;
    color: #333;
    line-height: 1.6;
}

/* Global Container */
.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header */
header {
    background-color: #2C3E50;
    color: white;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

header .logo-section h1 {
    font-size: 32px;
    letter-spacing: 1px;
    font-weight: 600;
    text-transform: uppercase;
}

nav {
    display: flex;
    gap: 30px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    font-size: 18px;
    transition: all 0.3s ease;
}

nav a:hover {
    color: #f39c12;
}

/* Main Content */
main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 20px;
    flex-direction: column;
    gap: 40px;
}

/* Login Section */
#loginSection {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
    width: 100%;
    max-width: 400px;
}

#loginSection input {
    padding: 16px;
    font-size: 18px;
    width: 100%;
    border: 1px solid #ccc;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: #fff;
}

#loginSection input:focus {
    border-color: #3498db;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.3);
}

#loginSection button {
    padding: 16px 24px;
    font-size: 18px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

#loginSection button:hover {
    background-color: #2980b9;
}

/* QR Section */
#qrSection {
    text-align: center;
    width: 100%;
}

#qrSection h2 {
    font-size: 32px;
    margin-bottom: 30px;
    color: #2c3e50;
}

.qr-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    border: 1px solid #ddd;
    padding: 30px;
    border-radius: 10px;
    background-color: #fff;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    max-width: 350px;
    margin: 20px auto;
}

.qr-wrapper p {
    font-size: 16px;
    color: #555;
    word-wrap: break-word;
    text-align: center;
}

/* Input Group Styling */
.input-group {
    margin: 30px 0;
    text-align: left;
    width: 350px;
    margin: 30px auto;
}

.input-group label {
    font-size: 18px;
    margin-bottom: 12px;
    color: #2c3e50;
}

.input-group input {
    padding: 14px;
    width: 100%;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 8px;
    transition: all 0.3s ease;
    background-color: #fff;
}

.input-group input:focus {
    border-color: #3498db;
    box-shadow: 0 0 10px rgba(52, 152, 219, 0.3);
}

/* Primary Button */
button.primary {
    background-color: #3498db;
    font-size: 18px;
    padding: 14px 30px;
    border-radius: 8px;
    border: none;
    color: white;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

button.primary:hover {
    background-color: #2980b9;
}

/* QR Code Section */
#qrCodeContainer {
    margin-top: 40px;
}

#qrCode {
    max-width: 400px;
    height: auto;
    margin-bottom: 40px;
}

/* Download Options */
#downloadOptions {
    margin-top: 40px;
}

#downloadOptions button {
    background-color: #ff9f00;
    font-size: 18px;
    padding: 16px 30px;
    margin: 10px;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

#downloadOptions button:hover {
    background-color: #e07b00;
}

/* Analytics Section */
#analyticsContainer {
    background-color: #fff;
    border: 1px solid #ddd;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    width: 60%;
    text-align: center;
    margin: 40px auto;
}

#analyticsContainer h3 {
    font-size: 26px;
    color: #3498db;
}

#analyticsContainer p {
    font-size: 18px;
    color: #555;
}

/* Bulk QR Code Generator */
#bulkQRCodeSection {
    margin: 30px auto;
    padding: 25px;
    background-color: #fff;
    border: 2px solid #3498db;
    border-radius: 12px;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
    text-align: center;
    max-width: 800px;
}

.bulk-title {
    font-size: 24px;
    color: #3498db;
    margin-bottom: 10px;
    font-weight: bold;
    text-transform: uppercase;
}

.bulk-description {
    font-size: 16px;
    color: #666;
    margin-bottom: 20px;
}

#bulkInput {
    width: 95%;
    height: 120px;
    padding: 14px;
    font-size: 16px;
    border: 1px solid #ddd;
    border-radius: 10px;
    margin-bottom: 20px;
    outline: none;
    resize: none;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.1);
}

#bulkInput:focus {
    border-color: #3498db;
    box-shadow: 0 0 6px rgba(52, 152, 219, 0.5);
}

.bulk-generate-btn {
    background-color: #3498db;
    color: white;
    padding: 14px 30px;
    font-size: 16px;
    font-weight: bold;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.bulk-generate-btn:hover {
    background-color: #2980b9;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#bulkQRCodeContainer {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

#bulkQRCodeContainer div {
    text-align: center;
    padding: 15px;
    border: 1px solid #ddd;
    background-color: #fff;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

#bulkQRCodeContainer img {
    width: 150px;
    height: 150px;
    margin-bottom: 10px;
}

.bulk-placeholder {
    font-size: 14px;
    color: #999;
    margin-top: 10px;
}

/* Drop Zone Styling */
.drop-zone {
    width: 300px;
    height: 200px;
    border: 2px dashed #3498db;
    border-radius: 12px;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #3498db;
    font-size: 16px;
    margin-top: 30px;
    transition: background-color 0.3s ease;
}

.drop-zone.dragover {
    background-color: #ecf7ff;
    color: #2980b9;
}

/* Footer */
footer {
    background-color: #2C3E50;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 16px;
}

footer a {
    color: white;
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

/* Dark Mode */
body.dark-mode {
    background-color: #121212;
    color: #ffffff;
}

body.dark-mode header {
    background-color: #34495e;
}

body.dark-mode input, body.dark-mode button {
    background-color: #333;
    color: #fff;
}

body.dark-mode footer {
    background-color: #34495e;
}