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

body {
    display: flex;
    justify-content: center;
    background-color: #121212;
    font-family: 'Inter', sans-serif;
    color: #f1f1f1;
    padding: 40px 20px;
}

.center-column {
    width: 100%;
    max-width: 800px;
    padding: 0 20px 20px;
    background-color: #1e1e1e;
    border-radius: 16px;
    box-shadow: 0 0 30px rgba(0, 0, 0, 0.5);
}

h1 {
    font-size: 36px;
    text-align: center;
    color: #00c6ff;
    margin-bottom: 30px;
}

.filter {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter label {
    font-weight: 600;
    color: #cccccc;
}

.filter select {
    padding: 10px 14px;
    background-color: #2b2b2b;
    border: 1px solid #444;
    border-radius: 8px;
    color: #fff;
    font-size: 15px;
    transition: border 0.2s ease;
}

.filter select:hover,
.filter select:focus {
    border-color: #00c6ff;
    outline: none;
}

.project {
    padding: 20px;
    border-radius: 14px;
    background: #2a2a2a;
    margin-bottom: 20px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}

.project:hover {
    transform: translateY(-4px);
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.6);
}

.project h2 {
    color: #ffd700;
    margin-bottom: 8px;
    font-size: 20px;
}

.project p {
    font-size: 15px;
    line-height: 1.5;
    color: #dddddd;
}

.project a {
    display: inline-block;
    margin-top: 12px;
    padding: 10px 16px;
    background-color: #00c6ff;
    color: #121212;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: background-color 0.3s ease;
}

.project a:hover {
    background-color: #0099cc;
}

.project-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.banner-slider {
    width: 100%;
    max-width: 728px;
    overflow: hidden;
    position: relative;
    margin: 20px auto;
    border-radius: 12px;
}

.banner-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    width: 9999px; /* неважно, просто больше */
}

.banner-slide {
    width: 728px;
    flex-shrink: 0;
}

.banner-slide img {
    width: 728px;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    display: block;
}


.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    border: none;
    color: #fff;
    font-size: 24px;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 50%;
    z-index: 10;
    transition: background 0.3s ease;
}

.slider-btn:hover {
    background: rgba(0, 0, 0, 0.8);
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}

.custom-banner {
    width: 100%;
    max-width: 728px;
    height: auto;
    margin: 20px auto;
    overflow: hidden;
    border-radius: 12px;
}

.custom-banner img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: contain;
    border-radius: 12px;
}