:root { --bg-white: #ffffff; --text-dark: #1f2922; --dark-green: #113821; --light-green: #376346; --gray-bg: #f5f7f5; }
body { font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; margin: 0; padding: 0; background-color: var(--bg-white); color: var(--text-dark); line-height: 1.6; }

nav { background-color: var(--dark-green); padding: 1rem 2rem; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.logo { color: var(--bg-white); font-size: 1.5rem; font-weight: 300; letter-spacing: 1px; text-decoration: none; }
.nav-links { list-style: none; margin: 0; padding: 0; display: flex; gap: 1.5rem; }
.nav-links a { color: var(--bg-white); text-decoration: none; font-size: 1rem; transition: opacity 0.3s; opacity: 0.8; padding: 0.5rem 0; display: block;}
.nav-links a:hover, .nav-links a.active { opacity: 1; font-weight: bold; border-bottom: 2px solid var(--bg-white); padding-bottom: 3px; }

.container { max-width: 1000px; margin: 3rem auto; padding: 0 2rem; }
h1, h2 { color: var(--dark-green); font-weight: 400; }
h1 { font-size: 2.5rem; border-bottom: 1px solid var(--light-green); padding-bottom: 0.5rem; margin-bottom: 2rem; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.artwork { position: relative; overflow: hidden; border-radius: 4px; background: var(--gray-bg); aspect-ratio: 4/5; cursor: pointer; }
.artwork img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.4s ease; }
.overlay { position: absolute; inset: 0; background: rgba(17, 56, 33, 0.85); color: white; display: flex; flex-direction: column; justify-content: center; align-items: center; opacity: 0; transition: opacity 0.4s ease; text-align: center; padding: 1rem; }
.artwork:hover img { transform: scale(1.05); }
.artwork:hover .overlay { opacity: 1; }
.overlay h3 { margin: 0 0 0.5rem 0; font-size: 1.3rem; font-weight: 300; }
.overlay p { margin: 0; font-size: 0.9rem; color: #d1e0d7; }

.content-box { background: var(--gray-bg); padding: 2rem; border-radius: 4px; margin-bottom: 2rem; border-left: 4px solid var(--light-green); }
.btn { display: inline-block; background: var(--dark-green); color: white; padding: 0.8rem 1.5rem; text-decoration: none; border-radius: 4px; margin-top: 1rem; transition: background 0.3s; text-align: center;}
.btn:hover { background: var(--light-green); }
footer { text-align: center; padding: 2rem; background-color: var(--dark-green); color: white; margin-top: 4rem; font-size: 0.9rem; }

/* ========================================= */
/* ПОЛНОЭКРАННЫЙ РЕЖИМ С АНИМАЦИЕЙ СЛАЙДОВ */
/* ========================================= */
.lightbox { display: none; position: fixed; z-index: 1000; left: 0; top: 0; width: 100%; height: 100%; background-color: rgba(17, 56, 33, 0.98); flex-direction: column; justify-content: center; align-items: center; user-select: none; overflow: hidden; }
.lightbox.active { display: flex; }
.close-btn { position: absolute; top: 20px; right: 30px; color: white; font-size: 40px; cursor: pointer; z-index: 1001; transition: 0.3s; }
.close-btn:hover { color: #aaa; }
.nav-btn { position: absolute; top: 50%; transform: translateY(-50%); background: none; border: none; color: white; font-size: 40px; cursor: pointer; padding: 20px; z-index: 1001; opacity: 0.6; transition: 0.3s; }
.nav-btn:hover { opacity: 1; }
.prev-btn { left: 10px; }
.next-btn { right: 10px; }

.lightbox-slider { position: relative; width: 100%; height: 80vh; display: flex; justify-content: center; align-items: center; }

/* Состояния анимации */
.lightbox-slide { position: absolute; max-width: 90%; max-height: 100%; object-fit: contain; box-shadow: 0 5px 35px rgba(0,0,0,0.6); opacity: 0; visibility: hidden; border-radius: 6px; transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1), opacity 0.5s ease; }
.lightbox-slide.active { opacity: 1; visibility: visible; transform: translateX(0) scale(1); z-index: 10; }
.lightbox-slide.out-left { opacity: 0; visibility: visible; transform: translateX(-40%) scale(0.7); z-index: 5; }
.lightbox-slide.out-right { opacity: 0; visibility: visible; transform: translateX(40%) scale(0.7); z-index: 5; }
.lightbox-slide.ready-right { opacity: 0; visibility: visible; transform: translateX(100%) scale(1); z-index: 15; transition: none; }
.lightbox-slide.ready-left { opacity: 0; visibility: visible; transform: translateX(-100%) scale(1); z-index: 15; transition: none; }

.lightbox-caption { position: absolute; bottom: 0; width: 100%; max-width: 600px; background: var(--bg-white); border-radius: 12px 12px 0 0; padding: 1.5rem; box-sizing: border-box; transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1); z-index: 1001; }
.lightbox-caption.collapsed { transform: translateY(calc(100% - 60px)); }
.caption-header { display: flex; justify-content: space-between; align-items: center; cursor: pointer; padding-bottom: 5px; }
.caption-header h3 { margin: 0; color: var(--dark-green); font-size: 1.3rem; }
.toggle-icon { font-size: 1.2rem; color: var(--dark-green); transition: transform 0.3s; }
.collapsed .toggle-icon { transform: rotate(180deg); }
#caption-desc { margin: 1rem 0 0 0; color: #555; }

/* Мобильная адаптация */
@media (max-width: 768px) {
    nav { flex-direction: column; gap: 1rem; padding: 1rem; }
    .nav-links { flex-wrap: wrap; justify-content: center; gap: 1rem; width: 100%; }
    .container { margin: 1.5rem auto; padding: 0 1rem; }
    h1 { font-size: 1.8rem; text-align: center; margin-bottom: 1.5rem; }
    .gallery { grid-template-columns: 1fr; gap: 1rem; }
    .overlay { opacity: 1; background: linear-gradient(to top, rgba(17, 56, 33, 0.9) 0%, rgba(17, 56, 33, 0) 100%); justify-content: flex-end; padding-bottom: 1.5rem; }
    .artwork:hover img { transform: none; }
    
    .nav-btn { display: none; }
    .lightbox-slider { height: 75vh; align-items: flex-start; margin-top: 5vh; }
    .lightbox-slide { max-width: 95%; max-height: 100%; }
    .close-btn { top: 10px; right: 20px; font-size: 35px; }
    .lightbox-caption { padding: 1.2rem; }
    .lightbox-caption.collapsed { transform: translateY(calc(100% - 55px)); }
}