/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header styles */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.title {
    font-size: 3rem;
    font-weight: 700;
    color: #4a5568;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.title i {
    color: #e53e3e;
    animation: pulse 2s infinite;
}

.subtitle {
    font-size: 1.2rem;
    color: #718096;
    font-weight: 400;
}

/* Main content */
.main-content {
    flex: 1;
    display: grid;
    gap: 30px;
}

/* Input section */
.input-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

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

.input-label {
    display: block;
    font-weight: 600;
    color: #4a5568;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.text-input {
    width: 100%;
    padding: 20px;
    border: 2px solid #e2e8f0;
    border-radius: 15px;
    font-size: 1.1rem;
    font-family: inherit;
    resize: vertical;
    transition: all 0.3s ease;
    background: #f7fafc;
}

.text-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    background: white;
}

.controls {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.rewrite-btn, .clear-btn {
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.rewrite-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.rewrite-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(102, 126, 234, 0.4);
}

.clear-btn {
    background: #e53e3e;
    color: white;
    box-shadow: 0 10px 20px rgba(229, 62, 62, 0.3);
}

.clear-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(229, 62, 62, 0.4);
}

/* Output section */
.output-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.output-header h3 {
    font-size: 1.5rem;
    color: #4a5568;
    font-weight: 600;
}

.copy-all {
    padding: 10px 20px;
    background: #48bb78;
    color: white;
    border: none;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.copy-all:hover {
    background: #38a169;
    transform: translateY(-1px);
}

.output-container {
    min-height: 200px;
}

.placeholder {
    text-align: center;
    color: #a0aec0;
    padding: 60px 20px;
}

.placeholder i {
    font-size: 3rem;
    margin-bottom: 20px;
    opacity: 0.5;
}

.viral-version {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
    padding: 20px;
    margin-bottom: 15px;
    border-radius: 15px;
    position: relative;
    animation: slideIn 0.5s ease-out;
    box-shadow: 0 10px 20px rgba(240, 147, 251, 0.3);
}

.viral-version:nth-child(even) {
    background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    box-shadow: 0 10px 20px rgba(79, 172, 254, 0.3);
}

.viral-version:nth-child(3n) {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    box-shadow: 0 10px 20px rgba(67, 233, 123, 0.3);
}

.version-text {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 15px;
}

.version-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9rem;
    opacity: 0.9;
}

.copy-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    padding: 8px 15px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 5px;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* Tips section */
.tips-section {
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
}

.tips-section h3 {
    font-size: 1.5rem;
    color: #4a5568;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.tips-section h3 i {
    color: #f6ad55;
}

.tips-list {
    list-style: none;
    padding: 0;
}

.tips-list li {
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
    position: relative;
    padding-left: 25px;
}

.tips-list li:before {
    content: "✨";
    position: absolute;
    left: 0;
    top: 12px;
}

.tips-list li:last-child {
    border-bottom: none;
}

/* Footer */
.footer {
    padding: 30px 20px;
    margin-top: 40px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    color: #718096;
}

.footer-content {
    max-width: 1000px;
    margin: 0 auto;
}

.footer-main {
    text-align: center;
    margin-bottom: 30px;
}

.affiliate-section {
    border-top: 1px solid #e2e8f0;
    padding-top: 25px;
}

.affiliate-section h4 {
    color: #4a5568;
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.affiliate-section h4 i {
    color: #667eea;
}

.affiliate-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.affiliate-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: linear-gradient(135deg, #f7fafc, #edf2f7);
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    color: #4a5568;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.affiliate-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(102, 126, 234, 0.1), transparent);
    transition: left 0.5s;
}

.affiliate-link:hover::before {
    left: 100%;
}

.affiliate-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    border-color: #667eea;
    color: #4a5568;
    text-decoration: none;
}

.affiliate-link i {
    color: #667eea;
    font-size: 1.1rem;
    width: 20px;
    text-align: center;
}

.affiliate-link span {
    font-size: 0.9rem;
}

/* Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .title {
        font-size: 2rem;
        flex-direction: column;
        gap: 10px;
    }
    
    .controls {
        flex-direction: column;
    }
    
    .rewrite-btn, .clear-btn {
        width: 100%;
        justify-content: center;
    }
    
    .output-header {
        flex-direction: column;
        gap: 15px;
        align-items: stretch;
    }
    
    .copy-all {
        width: 100%;
        justify-content: center;
    }
}

/* Loading animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Success animation */
.success {
    animation: successPulse 0.6s ease-out;
}

@keyframes successPulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}