* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 32px 16px 64px;
    font-family: Montserrat, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.8), transparent 35%),
        linear-gradient(180deg, #cddfd6 0%, #eef8f3 50%, #f7fbf9 100%);
    background-attachment: fixed;
    color: #254235;
}

.back-button {
    position: fixed;
    top: 20px;
    left: 20px;
    padding: 12px 20px;
    background: linear-gradient(135deg, #4e8f63, #2f6b45);
    color: #fff;
    border: 0;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 12px 24px rgba(28, 56, 37, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease, filter 0.2s ease;
    text-decoration: none;
    z-index: 30;
}

.back-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 28px rgba(28, 56, 37, 0.24);
    filter: brightness(1.03);
}

.intro {
    width: min(1120px, 100%);
    margin: 56px auto 32px;
    padding: 32px;
    text-align: center;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.82);
    border: 1px solid rgba(255, 255, 255, 0.85);
    box-shadow: 0 24px 50px rgba(52, 84, 64, 0.12);
    backdrop-filter: blur(10px);
}

.intro h1 {
    margin: 0 0 12px;
    font-size: clamp(2rem, 4vw, 3.25rem);
    line-height: 1.05;
    letter-spacing: -0.03em;
    color: #1f4d38;
}

.intro p {
    max-width: 780px;
    margin: 0 auto;
    font-size: clamp(1rem, 1.4vw, 1.15rem);
    color: #4b5f55;
}

.gallery {
    width: min(1120px, 100%);
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 18px;
    margin: 0 auto;
}

.gallery-item {
    position: relative;
    border: 0;
    padding: 0;
    margin: 0;
    background: transparent;
    border-radius: 22px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 14px 34px rgba(36, 61, 47, 0.12);
    aspect-ratio: 1 / 1.05;
    transform: translateY(0);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.gallery-item::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(18, 31, 23, 0.16));
    opacity: 0;
    transition: opacity 0.25s ease;
    pointer-events: none;
}

.gallery-item img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    transform: scale(1.001);
    transition: transform 0.35s ease;
}

.gallery-item:hover,
.gallery-item:focus-visible {
    transform: translateY(-4px);
    box-shadow: 0 22px 40px rgba(36, 61, 47, 0.18);
    outline: none;
}

.gallery-item:hover::after,
.gallery-item:focus-visible::after {
    opacity: 1;
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
    transform: scale(1.06);
}

.gallery-item:focus-visible {
    box-shadow: 0 0 0 3px rgba(79, 143, 99, 0.35), 0 22px 40px rgba(36, 61, 47, 0.18);
}

.lightbox {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
    padding: 20px;
}

.lightbox.is-open {
    display: flex;
}

.lightbox__backdrop {
    position: absolute;
    inset: 0;
    border: 0;
    background: rgba(10, 20, 15, 0.72);
    backdrop-filter: blur(8px);
}

.lightbox__dialog {
    position: relative;
    width: min(960px, 100%);
    max-height: 90vh;
    padding: 16px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
    display: flex;
    flex-direction: column;
    gap: 12px;
    animation: popIn 0.22s ease-out;
}

.lightbox__dialog img {
    width: 100%;
    max-height: calc(90vh - 120px);
    object-fit: contain;
    border-radius: 20px;
    background: #f2f6f4;
}

.lightbox__dialog p {
    margin: 0;
    text-align: center;
    font-size: 0.98rem;
    color: #496156;
}

.lightbox__close {
    position: absolute;
    top: 10px;
    right: 10px;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 999px;
    background: rgba(26, 48, 34, 0.9);
    color: #fff;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    z-index: 1;
}

.lightbox-open {
    overflow: hidden;
}

@keyframes popIn {
    from {
        opacity: 0;
        transform: translateY(10px) scale(0.98);
    }

    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 640px) {
    body {
        padding-top: 76px;
    }

    .intro {
        margin-top: 0;
        padding: 24px 20px;
        border-radius: 22px;
    }

    .gallery {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 14px;
    }

    .back-button {
        top: 12px;
        left: 12px;
        padding: 10px 16px;
        font-size: 14px;
    }

    .lightbox {
        padding: 12px;
    }

    .lightbox__dialog {
        padding: 12px;
        border-radius: 22px;
    }
}