/* ===== Base ===== */
:root {
    --bg: #000;
    --text: #fff;
    --glass: rgba(255, 255, 255, 0.05);
}

.light-mode {
    --h1: #fff;
    --bg: #fff;
    --text: #000;
    --glass: #fff);
    filter: grayscale(0%);
}
.light-mode .hero {
    filter: grayscale(0%)
}


body {
    margin: 0;
    font-family: "Helvetica Neue", sans-serif;
    background: var(--bg);
    color: var(--text);
    transition: 0.4s;
}

/* ===== Header ===== */
.header {
    position: fixed;
    width: 100%;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
    background: var(--glass);
    z-index: 10;
}

.logo h1 {
    font-size: clamp(1rem, 2vw, 1.3rem);
    letter-spacing: 2px;
    position: relative;
    color: var(--h1);
}

.logo p {
    font-size: 0.65rem;
    opacity: 0.7;
    position: relative;
    color: var(--text);
}

/* ===== Hero ===== */
.hero {
    height: 100vh;
    min-height: 500px;
    background: url("images/waterfallhero.jpg") center/cover no-repeat;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0 1rem;
    filter: grayscale(80%);
}


.hero-overlay {
    position: absolute;
    inset: 0;
    height: 100vh;
    background: rgba(0, 0, 0, 0.4);
}

.hero-title {
    position: relative;
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    letter-spacing: 3px;
    font-weight: 300;
}

/* ===== Gallery ===== */
.gallery {
    padding: 3rem 1rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

/* Tablet */
@media (max-width: 900px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile */
@media (max-width: 600px) {
    .grid {
        grid-template-columns: 1fr;
    }
}

.item {
    position: relative;
    overflow: hidden;
}

.item img {
    width: 100%;
    height: 300px;
    object-fit: covwr;
    transition: 0.5s ease;
    filter: grayscale(100%);
}

/* Desktop hover only */
@media (hover: hover) {
    .item:hover img {
        transform: scale(1.05);
        filter: grayscale(0%);
    }

    .item:hover .overlay {
        opacity: 1;
    }
}

/* Overlay always visible on mobile */
.overlay {
    position: static;
    bottom: 15px;
    left: 15px;
    font-size: 0.9rem;
    letter-spacing: 5px;
    opacity: 0.9;
}

/* ===== Lightbox ===== */
.lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.lightbox img {
    max-width: 100%;
    max-height: 80%;
}

/* Mobile-friendly controls */
.close,
.prev,
.next {
    position: absolute;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    padding: 10px;
}

.close {
    top: 10px;
    right: 15px;
}

.prev {
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
}

.next {
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
}

/* ===== Small screens adjustments ===== */
@media (max-width: 500px) {
    .header {
        padding: 0.8rem 1rem;
    }

    .logo p {
        display: none;
    }

    .hero-title {
        letter-spacing: 2px;
    }
}
/* night-day toggle */

#themeToggle {
    position: absolute;
    right: 10%;
    max-width: 10px;
    background: none;
    border: 1px solid var(--text);
    color: var(--text);
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    transition: all 0.3s ease;
    align-items: center;
    justify-content: center;
}

#themeToggle:hover {
    background: var(--text);
    color: var(--bg);
}