/* =====================================================
   HERO БЛОК
   ===================================================== */

.bt-hero {
    min-height: 85vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 8%;

    background:
        linear-gradient(
            rgba(15,23,42,.85),
            rgba(15,23,42,.85)
        ),
        url('../images/traktor.png');

    background-size: cover;
    background-position: center;

    color: white;
    text-align: center;
}

.bt-hero-content {
    max-width: 900px;
}

.bt-hero h1 {
    font-size: 3.4rem;
    margin-bottom: 24px;
    line-height: 1.2;
}

.bt-hero p {
    font-size: 1.2rem;
    margin-bottom: 40px;
    opacity: .95;
}

/* =====================================================
   КНОПКИ
   ===================================================== */

.bt-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* =====================================================
   ЗАГАЛЬНІ СЕКЦІЇ
   ===================================================== */

.bt-section {
    padding: 80px 8%;
}

.bt-section-title {
    text-align: center;
    font-size: 2.3rem;
    margin-bottom: 50px;
    color: #0f172a;
}

.bt-container {
    max-width: 1400px;
    margin: 0 auto;
}

/* =====================================================
   БЛОК "ПРО САЙТ"
   ===================================================== */

.bt-about {
    background: #ffffff;
    border-radius: 24px;
    padding: 50px;
    box-shadow: 0 8px 30px rgba(0,0,0,.08);
    max-width: 1100px;
    margin: auto;
    text-align: center;
}

.bt-about p {
    font-size: 1.1rem;
    max-width: 850px;
    margin: auto;
}

/* =====================================================
   КАРТКИ
   ===================================================== */

.bt-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px,1fr));
    gap: 28px;
}

.bt-card {
    position: relative;
    display: block;
    text-decoration: none;
    color: inherit;
    background: #ffffff;
    border-radius: 22px;
    padding: 30px;
    box-shadow: 0 8px 25px rgba(0,0,0,.08);
    transition: .3s;
    cursor: pointer;
    border: 2px solid transparent;
}

.bt-card::after {
    content: "→";
    position: absolute;
    right: 24px;
    bottom: 20px;
    font-size: 1.4rem;
    font-weight: 800;
    color: #94a3b8;
    transition: .25s;
}

.bt-card:hover::after {
    color: #facc15;
    transform: translateX(8px);
}

.bt-card:hover {
    transform: translateY(-8px);
    background: #ffffff;
    box-shadow: 0 18px 45px rgba(15,23,42,.18);
    border-color: #facc15;
}

.bt-card h3 {
    margin-bottom: 16px;
    transform: scaleX(1);
    font-size: 1.3rem;
}

/* =====================================================
   БЛОК ПЕРЕВАГ
   ===================================================== */

.bt-features {
    background: #e2e8f0;
    padding: 80px 8%;
}

.bt-feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
    gap: 20px;
    max-width: 1200px;
    margin: auto;
}

.bt-feature-item {
    background: #ffffff;
    padding: 24px;
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 5px 18px rgba(0,0,0,.07);
    font-weight: 600;
}

/* =====================================================
   НОВІ МАТЕРІАЛИ
   ===================================================== */

.bt-article-card {
    background: #f8fafc;
    border-left: 5px solid #facc15;
    padding: 24px;
    border-radius: 18px;
}

/* =====================================================
   МОБІЛЬНА ВЕРСІЯ
   ===================================================== */

@media (max-width: 768px) {

    .bt-hero h1 {
        font-size: 2.3rem;
    }

    .bt-hero p {
        font-size: 1rem;
    }

    .bt-about {
        padding: 30px;
    }

    .bt-card:active {
    transform: scale(0.97);
    background: #fef3c7;
    border-color: #facc15;
}
}