:root {
    --bg-color: #0d1117;
    --card-bg: #161b22;
    --text-primary: #c9d1d9;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #1f6feb;
    --border-color: #30363d;
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 3rem 1rem;
    background-image: radial-gradient(circle at 50% -20%, #1f6feb 0%, transparent 40%);
}

.container {
    width: 100%;
    max-width: 600px;
}

.header {
    text-align: center;
    margin-bottom: 2rem;
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #58a6ff, #8a2be2);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 15px rgba(88, 166, 255, 0.3);
}

.search-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 10;
}

.search-input {
    flex: 1;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    color: var(--text-primary);
    outline: none;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

.search-input::placeholder {
    color: var(--text-secondary);
}

.search-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.2);
}

.search-btn {
    background: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 12px;
    padding: 0 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(88, 166, 255, 0.4);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    display: flex;
    gap: 2rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    animation: fadeIn 0.5s ease-out forwards;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.4);
}

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

.avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 4px solid var(--glass-border);
    object-fit: cover;
    box-shadow: 0 0 20px rgba(88, 166, 255, 0.2);
}

.user-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.user-info h2 {
    font-size: 1.8rem;
    margin-bottom: 0.2rem;
}

.user-info .username {
    color: var(--accent-color);
    font-size: 1rem;
    margin-bottom: 1rem;
    text-decoration: none;
}

.user-info .username:hover {
    text-decoration: underline;
}

.user-info p {
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    list-style: none;
}

.stats li {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--glass-border);
}

.stats li strong {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.stats li span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.repos {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.repo-link {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent-color);
    text-decoration: none;
    padding: 0.4rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid rgba(88, 166, 255, 0.2);
    transition: all 0.2s ease;
}

.repo-link:hover {
    background: var(--accent-color);
    color: #fff;
    transform: scale(1.05);
}

.error-card {
    background: rgba(255, 99, 71, 0.1);
    border: 1px solid rgba(255, 99, 71, 0.3);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    color: #ff6347;
    animation: fadeIn 0.5s ease-out forwards;
}

/* Responsive */
@media (max-width: 600px) {
    .card {
        flex-direction: column;
        align-items: center;
        text-align: center;
        padding: 1.5rem;
    }
    
    .stats {
        justify-content: center;
    }
    
    .repos {
        justify-content: center;
    }
}