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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    min-height: 100vh;
    padding: 20px;
    color: #333;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 119, 198, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(120, 219, 255, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 24px;
    box-shadow: 
        0 20px 60px rgba(0, 0, 0, 0.3),
        0 0 0 1px rgba(255, 255, 255, 0.5) inset;
    overflow: hidden;
    position: relative;
    z-index: 1;
    animation: containerFadeIn 0.6s ease-out;
}

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

header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: headerGradient 8s ease infinite;
    color: white;
    padding: 50px 40px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    animation: shimmer 3s ease-in-out infinite;
}

@keyframes headerGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes shimmer {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(50%, 50%) rotate(180deg); }
}

.header-icon {
    font-size: 4em;
    margin-bottom: 10px;
    display: inline-block;
    animation: iconBounce 2s ease-in-out infinite;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    position: relative;
    z-index: 1;
}

@keyframes iconBounce {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    25% { transform: translateY(-10px) rotate(-5deg); }
    75% { transform: translateY(-10px) rotate(5deg); }
}

header h1 {
    font-size: 3.5em;
    margin-bottom: 15px;
    text-shadow: 
        2px 2px 4px rgba(0, 0, 0, 0.3),
        0 0 20px rgba(255, 255, 255, 0.2);
    font-weight: 700;
    letter-spacing: -1px;
    position: relative;
    z-index: 1;
    animation: titleFloat 3s ease-in-out infinite;
}

@keyframes titleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.subtitle {
    font-size: 1.3em;
    opacity: 0.95;
    font-weight: 300;
    letter-spacing: 0.5px;
    position: relative;
    z-index: 1;
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

main {
    padding: 50px 40px;
}

.crawl-form {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 249, 250, 0.9) 100%);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 30px;
    box-shadow: 
        0 8px 32px rgba(102, 126, 234, 0.15),
        0 0 0 1px rgba(102, 126, 234, 0.1) inset;
    border: 1px solid rgba(255, 255, 255, 0.5);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.crawl-form:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 12px 40px rgba(102, 126, 234, 0.2),
        0 0 0 1px rgba(102, 126, 234, 0.15) inset;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #495057;
    font-size: 15px;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 12px;
    font-size: 16px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(255, 255, 255, 0.9);
    color: #333;
    font-weight: 400;
}

.form-group input:hover,
.form-group select:hover {
    border-color: rgba(102, 126, 234, 0.4);
    background: rgba(255, 255, 255, 1);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 
        0 0 0 4px rgba(102, 126, 234, 0.15),
        0 4px 12px rgba(102, 126, 234, 0.1);
    background: rgba(255, 255, 255, 1);
    transform: translateY(-1px);
}

.btn-primary,
.btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    background-size: 200% 200%;
    animation: buttonGradient 3s ease infinite;
    color: white;
    width: 100%;
    justify-content: center;
    padding: 16px 32px;
    font-size: 17px;
    font-weight: 600;
    letter-spacing: 0.5px;
    box-shadow: 
        0 4px 15px rgba(102, 126, 234, 0.4),
        0 0 0 0 rgba(102, 126, 234, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.btn-primary:hover::before {
    left: 100%;
}

@keyframes buttonGradient {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 8px 25px rgba(102, 126, 234, 0.5),
        0 0 0 4px rgba(102, 126, 234, 0.1);
}

.btn-primary:active {
    transform: translateY(-1px) scale(1);
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    animation: none;
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
    color: white;
    margin-right: 10px;
    padding: 12px 20px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(108, 117, 125, 0.3);
    border: none;
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5a6268 0%, #495057 100%);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(108, 117, 125, 0.4);
}

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

.error-message {
    background: linear-gradient(135deg, #f8d7da 0%, #f5c6cb 100%);
    color: #721c24;
    padding: 18px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    border-left: 4px solid #dc3545;
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.15);
    animation: errorShake 0.5s ease;
    font-weight: 500;
}

@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.error-message.service-offline {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
    border-left-color: #ffc107;
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(255, 193, 7, 0.2);
}

.results {
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.95) 0%, rgba(255, 255, 255, 0.95) 100%);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 35px;
    box-shadow: 
        0 8px 32px rgba(102, 126, 234, 0.15),
        0 0 0 1px rgba(102, 126, 234, 0.1) inset;
    border: 1px solid rgba(255, 255, 255, 0.5);
    animation: resultsFadeIn 0.5s ease-out;
}

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

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.results-header h2 {
    color: #333;
    font-size: 1.8em;
    font-weight: 700;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.results-info {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 25px;
    padding: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 249, 250, 0.9) 100%);
    border-radius: 12px;
    font-size: 14px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid rgba(102, 126, 234, 0.1);
}

.results-info span {
    padding: 8px 16px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    border-radius: 20px;
    color: #495057;
    font-weight: 500;
    border: 1px solid rgba(102, 126, 234, 0.2);
    transition: all 0.3s ease;
}

.results-info span:hover {
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.2) 0%, rgba(118, 75, 162, 0.2) 100%);
    transform: translateY(-2px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
}

.content-preview {
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    border-radius: 12px;
    padding: 25px;
    max-height: 600px;
    overflow-y: auto;
    border: 2px solid rgba(102, 126, 234, 0.2);
    box-shadow: 
        inset 0 2px 8px rgba(0, 0, 0, 0.3),
        0 4px 12px rgba(0, 0, 0, 0.1);
    position: relative;
}

.content-preview::-webkit-scrollbar {
    width: 10px;
}

.content-preview::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 5px;
}

.content-preview::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 5px;
}

.content-preview::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
}

.content-preview pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.8;
    color: #d4d4d4;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
}

.loading-spinner {
    text-align: center;
    padding: 60px 40px;
}

.spinner {
    border: 5px solid rgba(102, 126, 234, 0.1);
    border-top: 5px solid #667eea;
    border-right: 5px solid #764ba2;
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto 25px;
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.3);
}

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

.loading-spinner p {
    color: #666;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 0.5px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

footer {
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.95) 0%, rgba(255, 255, 255, 0.95) 100%);
    backdrop-filter: blur(10px);
    padding: 35px 30px;
    text-align: center;
    border-top: 1px solid rgba(102, 126, 234, 0.1);
    position: relative;
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100px;
    height: 3px;
    background: linear-gradient(90deg, transparent, #667eea, transparent);
    border-radius: 0 0 3px 3px;
}

footer p {
    margin: 5px 0;
    color: #495057;
}

footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: all 0.3s ease;
    position: relative;
}

footer a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    transition: width 0.3s ease;
}

footer a:hover::after {
    width: 100%;
}

.footer-note {
    margin-top: 12px;
    font-size: 0.9em;
    color: #6c757d;
    font-style: italic;
}

/* Success notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
    padding: 18px 24px;
    border-radius: 12px;
    box-shadow: 
        0 8px 24px rgba(40, 167, 69, 0.4),
        0 0 0 1px rgba(255, 255, 255, 0.2) inset;
    z-index: 1000;
    animation: slideIn 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-weight: 500;
    letter-spacing: 0.3px;
    backdrop-filter: blur(10px);
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Additional polish */
.crawl-form {
    position: relative;
}

.crawl-form::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #667eea, #764ba2, #f093fb);
    border-radius: 20px;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.crawl-form:hover::after {
    opacity: 0.1;
}

/* Responsive design */
@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    
    .container {
        border-radius: 16px;
    }
    
    header {
        padding: 35px 25px;
    }
    
    .header-icon {
        font-size: 3em;
    }
    
    header h1 {
        font-size: 2.2em;
    }
    
    .subtitle {
        font-size: 1.1em;
    }
    
    main {
        padding: 25px 20px;
    }
    
    .crawl-form {
        padding: 25px;
    }
    
    .results {
        padding: 25px;
    }
    
    .results-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .results-actions {
        width: 100%;
    }
    
    .btn-secondary {
        flex: 1;
        margin-right: 0;
        font-size: 14px;
        padding: 10px 16px;
    }
    
    .notification {
        right: 10px;
        left: 10px;
        top: 10px;
    }
}