:root {
    --text: #1f2d2a;
    --accent: #2f7d6a;
    --bg: #f4f8f7;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Sans", sans-serif;
    color: var(--text);
    line-height: 1.8;
    background: linear-gradient(180deg, #f4f8f7 0%, #eef5f3 100%);
}

/* NAV */
.nav {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 12px 10px;
    background: rgba(255,255,255,0.75);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid rgba(0,0,0,0.06);
}

.nav-item {
    text-decoration: none;
    color: #2a3a35;
    font-size: 14px;
    padding: 8px 14px;
    border-radius: 999px;
}

.nav-item:hover {
    background: rgba(47,125,106,0.12);
    color: var(--accent);
}

/* HERO */
.hero {
    background: url("../images/pksn_kagawa.jpeg") center/cover no-repeat;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    color: white;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.35);
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero.small {
    min-height: 40vh;
}

/* TOP CARDS */
.cards {
    max-width: 1200px;
    margin: auto;
    padding: 0 30px 100px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.card {
    background: white;
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    color: inherit;

    box-shadow: 0 10px 30px rgba(0,0,0,0.06);

    transition:
        transform 0.35s cubic-bezier(.22,1,.36,1),
        box-shadow 0.35s cubic-bezier(.22,1,.36,1);
}

.card:hover {
    transform: translateY(-5px);

    box-shadow:
        0 20px 50px rgba(0,0,0,0.10);
}

.card img {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.card-text {
    padding: 20px;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 80px 20px;
}

#creator {
    display: inline-block;
    background: white;
    padding: 15px 25px;
    border-radius: 999px;
}

@media (max-width: 900px){

    .hero{
        min-height: 50vh;
    }

    .cards{
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 20px 60px;
    }

    .card img{
        height: 180px;
    }

}