:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --background-color: #f5f6fa;
    --border-color: #dcdde1;
    --error-color: #e74c3c;
    --success-color: #2ecc71;
}

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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    padding: 20px;
    font-size: 16px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.logo-upload {
    width: 100%;
    margin-bottom: 30px;
}

.logo-label {
    cursor: pointer;
    display: block;
}

#logoPreview {
    width: 100%;
    height: 120px;
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    transition: all 0.3s ease;
}

#logoPreview:hover {
    border-color: var(--secondary-color);
    background-color: #f0f2f5;
}

#logoPreview span {
    color: #666;
    font-size: 1.1em;
}

#uploadedLogo {
    max-width: 100%;
    max-height: 120px;
    object-fit: contain;
}

h1 {
    color: var(--primary-color);
    margin-bottom: 30px;
    font-size: 2.5em;
    text-align: center;
}

.form-group {
    margin-bottom: 25px;
}

.date-time-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.1em;
}

.required {
    color: var(--error-color);
    margin-left: 4px;
}

input[type="text"],
input[type="date"],
input[type="time"],
textarea {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 10px;
    font-size: 1.1em;
    transition: border-color 0.3s ease;
}

input[type="text"]:focus,
input[type="date"]:focus,
input[type="time"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
}

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

.topic-entry {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 15px;
    margin-bottom: 15px;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-top: 30px;
}

button {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1em;
    transition: all 0.3s ease;
}

.primary-button {
    background-color: var(--secondary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(52, 152, 219, 0.3);
    flex: 1;
}

.primary-button:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
}

.primary-button:disabled {
    background-color: #bdc3c7;
    cursor: not-allowed;
    transform: none;
}

.secondary-button {
    background-color: #ecf0f1;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.secondary-button:hover {
    background-color: #dde4e6;
}

.clear-button {
    background-color: #95a5a6;
    color: white;
    margin-bottom: 0;
}

.clear-button:hover {
    background-color: #7f8c8d;
}

.validation-message {
    color: var(--error-color);
    margin: 10px 0;
    font-weight: bold;
    min-height: 24px;
}

.preview-section {
    background-color: white;
    padding: 30px;
    border-radius: 12px;
    border: 2px solid var(--border-color);
}

.preview-section h2 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8em;
}

.preview-content {
    min-height: 500px;
    padding: 30px;
    background-color: white;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1.1em;
}

#previewHeader {
    margin-bottom: 30px;
    text-align: center;
}

#previewLogo {
    margin-bottom: 20px;
}

#previewLogo img {
    max-height: 100px;
    max-width: 100%;
}

#previewTitle h2 {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

#previewDateTime,
#previewLocation {
    margin-bottom: 10px;
    color: #666;
}

.preview-section-content {
    margin-bottom: 25px;
    padding-left: 25px;
}

.preview-section-content h3 {
    color: var(--primary-color);
    margin-bottom: 15px;
    padding-left: 0;
}

.preview-section-content ol,
.preview-section-content ul {
    margin-left: 20px;
}

.preview-section-content li {
    margin-bottom: 8px;
}

#previewOutcomes {
    background-color: #f7f9fa;
    padding: 15px 25px;
    border-radius: 8px;
    border-left: 4px solid var(--secondary-color);
}

#previewFooter {
    margin-top: 40px;
    padding-top: 15px;
    border-top: 2px solid var(--border-color);
    font-style: italic;
}

.affiliate-banner {
    background: linear-gradient(135deg, #ff6b6b, #ee5253);
    color: white;
    padding: 15px 20px;
    border-radius: 8px;
    margin: 20px 0;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 15px rgba(238, 82, 83, 0.3);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.02);
    }
    100% {
        transform: scale(1);
    }
}

.affiliate-banner:hover {
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 6px 20px rgba(238, 82, 83, 0.4);
    background: linear-gradient(135deg, #ff5252, #dd4444);
}

.affiliate-banner a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    display: block;
    font-size: 1.1em;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.affiliate-banner a:hover {
    text-decoration: underline;
}

@media (max-width: 768px) {
    .container {
        grid-template-columns: 1fr;
    }
    
    body {
        padding: 10px;
    }
    
    .preview-section {
        margin-top: 30px;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .date-time-group {
        grid-template-columns: 1fr;
    }
}