* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background: #1a1a1a;
    color: #fff;
    min-height: 100vh;
}

.container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 300px;
    background: #242424;
    padding: 2rem;
    position: fixed;
    height: 100vh;
    border-right: 1px solid #333;
}

.content {
    flex: 1;
    margin-left: 300px;
    padding: 2rem;
}

h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 2rem;
    color: #fff;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: #2d2d2d;
    padding: 1.5rem;
    border-radius: 12px;
}

input {
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    background: #363636;
    color: #fff;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

input:focus {
    outline: none;
    background: #404040;
}

input::placeholder {
    color: #888;
}

button {
    padding: 0.8rem;
    border: none;
    border-radius: 8px;
    background: #4CAF50;
    color: #fff;
    cursor: pointer;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

button:hover {
    background: #45a049;
    transform: translateY(-2px);
}

.bookmarks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1rem;
}

.bookmark-item {
    background: #242424;
    border-radius: 12px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    min-height: 160px;
    display: flex;
    flex-direction: column;
    cursor: pointer;
}

.bookmark-item:hover {
    transform: translateY(-5px);
    background: #2a2a2a;
}

.bookmark-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.bookmark-title {
    font-size: 1.2rem;
    font-weight: 500;
    color: #fff;
    text-decoration: none;
    margin-bottom: 0.5rem;
}

.bookmark-url {
    color: #888;
    font-size: 0.9rem;
    margin-top: 0.5rem;
    word-break: break-all;
}



.bookmark-meta {
    margin-top: auto;
    color: #666;
    font-size: 0.8rem;
}

.profile-section {
    margin-top: 2rem;
    text-align: center;
}

.profile-img {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    border: 2px solid #4CAF50;
    transition: all 0.3s ease;
}

.profile-img:hover {
    transform: scale(1.1);
    border-color: #45a049;
}