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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: 'Arial', sans-serif;
    position: relative;
}

/* Золотая рамка по краям всей страницы */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 15px solid;
    border-image: linear-gradient(45deg, #ffd700, #ffed4e, #ff8c00, #ffd700, #ffed4e) 1;
    pointer-events: none;
    z-index: 100;
    box-shadow: 
        inset 0 0 40px rgba(255, 215, 0, 0.5),
        0 0 40px rgba(255, 215, 0, 0.5);
    animation: borderGlow 3s ease-in-out infinite;
}

@keyframes borderGlow {
    0%, 100% {
        border-image: linear-gradient(45deg, #ffd700, #ffed4e, #ff8c00, #ffd700, #ffed4e) 1;
        box-shadow: 
            inset 0 0 40px rgba(255, 215, 0, 0.5),
            0 0 40px rgba(255, 215, 0, 0.5);
    }
    50% {
        border-image: linear-gradient(45deg, #ffed4e, #ff8c00, #ffd700, #ffed4e, #ff8c00) 1;
        box-shadow: 
            inset 0 0 60px rgba(255, 215, 0, 0.8),
            0 0 60px rgba(255, 215, 0, 0.8);
    }
}

.fullscreen-container {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    align-items: center;
}

.fullscreen-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}

.bottom-button {
    position: relative;
    z-index: 101;
    margin-bottom: 50px;
    padding: 20px 50px;
    font-size: 24px;
    font-weight: bold;
    color: white;
    background: linear-gradient(45deg, #00d4ff 0%, #0099ff 100%);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 153, 255, 0.6);
    animation: buttonGlow 2s ease-in-out infinite;
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.bottom-button:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(0, 212, 255, 0.8);
    background: linear-gradient(45deg, #00e5ff 0%, #00b0ff 100%);
}

.bottom-button:active {
    transform: translateY(-2px) scale(1.02);
}

@keyframes buttonGlow {
    0%, 100% {
        box-shadow: 0 10px 40px rgba(0, 153, 255, 0.6);
    }
    50% {
        box-shadow: 0 15px 60px rgba(0, 212, 255, 0.9);
    }
}

/* Адаптивность для мобильных */
@media (max-width: 768px) {
    body::before {
        border-width: 10px;
    }
    
    .bottom-button {
        font-size: 18px;
        padding: 15px 30px;
        margin-bottom: 30px;
    }
}

/* Адаптивность для планшетов */
@media (max-width: 1024px) and (min-width: 769px) {
    body::before {
        border-width: 12px;
    }
    
    .bottom-button {
        font-size: 20px;
        padding: 18px 40px;
        margin-bottom: 40px;
    }
}