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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    margin-bottom: 30px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    position: relative;
    overflow: hidden;
}

.header-content {
    display: flex;
    align-items: center;
    gap: 40px;
    flex-wrap: wrap;
}

.portrait-container {
    flex-shrink: 0;
}

.portrait-image {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    border: 4px solid rgba(255,255,255,0.8);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.portrait-image:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

.header-text {
    flex: 1;
    text-align: center;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { left: -100%; }
    100% { left: 100%; }
}

.top-nav {
    background: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 30px;
    padding: 15px 20px;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 5px;
}

.nav-link:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.header h1 {
    font-size: 3.5em;
    margin-bottom: 10px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
}

.header .subtitle {
    font-size: 1.5em;
    color: #666;
    margin-bottom: 20px;
    font-weight: 300;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.1em;
    color: #555;
}

.contact-item::before {
    content: '';
    width: 8px;
    height: 8px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 50%;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.section:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
}

.section h2 {
    font-size: 2em;
    margin-bottom: 20px;
    color: #333;
    position: relative;
    padding-bottom: 10px;
}

.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    border-radius: 2px;
}

.full-width {
    grid-column: 1 / -1;
}

.experience-item {
    margin-bottom: 25px;
    padding: 20px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 15px;
    border-left: 4px solid #667eea;
    transition: background 0.3s ease;
}

.experience-item:hover {
    background: rgba(102, 126, 234, 0.1);
}

.experience-item h3 {
    color: #667eea;
    margin-bottom: 10px;
    font-size: 1.3em;
}

.dogs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.dog-card {
    background: rgba(118, 75, 162, 0.05);
    border-radius: 15px;
    padding: 20px;
    text-align: center;
    border: 2px solid rgba(118, 75, 162, 0.1);
    transition: all 0.3s ease;
}

.dog-card:hover {
    border-color: #764ba2;
    background: rgba(118, 75, 162, 0.1);
    transform: scale(1.02);
}

.dog-card h4 {
    color: #764ba2;
    margin-bottom: 10px;
    font-size: 1.4em;
}

.dog-photo {
    width: 150px;
    height: 150px;
    margin: 0 auto 20px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid #764ba2;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f5f5f5;
}

.dog-photo img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.dog-card:hover .dog-photo img {
    transform: scale(1.1);
}

.dog-info {
    text-align: center;
}

.dog-info p {
    margin: 8px 0;
    color: #666;
    line-height: 1.6;
}

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

.skill-item {
    background: rgba(102, 126, 234, 0.1);
    padding: 15px;
    border-radius: 10px;
    text-align: left;
    font-weight: 500;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 12px;
}

.skill-item:hover {
    background: rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.cert-logo {
    width: 50px;
    height: 50px;
    min-width: 50px;
    min-height: 50px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    padding: 8px;
}

.cert-logo img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transition: transform 0.3s ease;
}

.skill-item:hover .cert-logo img {
    transform: scale(1.1);
}

.cert-name {
    font-size: 0.9em;
    line-height: 1.3;
}

.video-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.video-link {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    padding: 20px;
    border-radius: 15px;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.video-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    text-decoration: none;
    color: white;
}

.video-link h4 {
    margin-bottom: 10px;
    font-size: 1.2em;
}

.video-preview {
    position: relative;
    width: 100%;
    height: 180px;
    margin-bottom: 15px;
    border-radius: 10px;
    overflow: hidden;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-preview img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.video-link:hover .video-preview img {
    transform: scale(1.1);
    opacity: 0.8;
}

.play-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(0, 0, 0, 0.7);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.video-link:hover .play-overlay {
    background: rgba(102, 126, 234, 0.9);
    transform: translate(-50%, -50%) scale(1.1);
}

.play-icon {
    color: white;
    font-size: 20px;
    margin-left: 5px;
}

.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin: 20px 0;
}

.stat-item {
    text-align: center;
    padding: 20px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 15px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 2.5em;
    font-weight: bold;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 0.9em;
    opacity: 0.9;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
    
    .header h1 {
        font-size: 2.5em;
    }
    
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }
    
    .portrait-image {
        width: 150px;
        height: 150px;
    }
    
    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    
    .container {
        padding: 10px;
    }
}

.highlight {
    background: linear-gradient(120deg, #667eea20 0%, #764ba220 100%);
    padding: 20px;
    border-radius: 10px;
    margin: 15px 0;
    border-left: 4px solid #667eea;
}