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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.container {
    max-width: 800px;
    width: 100%;
}

h1 {
    text-align: center;
    color: white;
    margin-bottom: 20px;
    font-size: 2rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

/* Info Card */
.info-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-align: center;
}

.info-card p {
    margin: 5px 0;
    color: #333;
    font-size: 0.9rem;
}

.info-card strong {
    color: #667eea;
}

/* Content Box Styles */
.content-box {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    margin-bottom: 30px;
    position: relative;
}

.content-box .header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
    text-align: center;
}

.content-box .header h2 {
    font-size: 1.8rem;
    margin: 0;
}

.content-box .body {
    padding: 20px 0;
}

.content-box .body > p {
    font-size: 1.1rem;
    color: #333;
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    margin: 20px 0;
}

.feature-item {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.2s;
}

.feature-item:hover {
    transform: translateY(-5px);
}

.timestamp {
    text-align: center;
    color: #666;
    font-size: 0.9rem;
    margin-top: 20px;
    font-style: italic;
}

/* Share Preview Box */
.share-preview-box {
    background: #f5f5f5;
    border-left: 4px solid #667eea;
    padding: 15px;
    margin: 15px 0;
    border-radius: 5px;
}

.share-text, .share-link {
    margin: 10px 0;
    font-size: 0.95rem;
    word-break: break-all;
}

.share-link strong {
    color: #667eea;
}

/* Preview Example */
.preview-example {
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    overflow: hidden;
    margin: 15px 0;
    background: white;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.preview-img {
    width: 100%;
    height: auto;
    display: block;
}

.preview-text {
    padding: 15px;
    background: #fafafa;
}

.preview-title {
    font-weight: bold;
    color: #333;
    font-size: 1rem;
    margin-bottom: 5px;
}

.preview-desc {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

.preview-url {
    color: #999;
    font-size: 0.85rem;
    text-transform: lowercase;
}

.info-text {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: 12px;
    margin: 15px 0;
    border-radius: 5px;
    font-size: 0.9rem;
    color: #856404;
}

h3 {
    color: #667eea;
    font-size: 1.1rem;
    margin: 20px 0 10px 0;
}

/* Controls */
.controls {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    justify-content: center;
    max-width: 1000px;
    margin: 0 auto;
}

.btn {
    padding: 15px 30px;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(0);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #1da851;
}

.btn-secondary {
    background: white;
    color: #667eea;
}

.btn-secondary:hover {
    background: #f0f0f0;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5568d3 0%, #653a91 100%);
}

.btn .icon {
    font-size: 1.2rem;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    padding: 30px;
    border-radius: 15px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    animation: slideIn 0.3s;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 20px;
}

.close:hover,
.close:focus {
    color: #000;
}

#preview-container {
    margin: 20px 0;
    text-align: center;
}

#preview-container img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.modal-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 20px;
}

/* Loading Indicator */
.loading {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.loading.active {
    display: flex;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #25D366;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading p {
    color: white;
    margin-top: 20px;
    font-size: 1.1rem;
}

/* Status Message */
.status-message {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 15px 25px;
    border-radius: 50px;
    background: white;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    font-weight: bold;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    z-index: 3000;
}

.status-message.show {
    opacity: 1;
    transform: translateY(0);
}

.status-message.success {
    background: #25D366;
    color: white;
}

.status-message.error {
    background: #f5576c;
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 1.5rem;
    }

    .content-box {
        padding: 20px;
    }

    .content-box .header h2 {
        font-size: 1.4rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .controls {
        grid-template-columns: 1fr;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .info-card p {
        font-size: 0.85rem;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 20px;
    }

    .modal-actions {
        flex-direction: column;
    }

    .modal-actions .btn {
        width: 100%;
    }
}