/* ── Shared variables ── */
:root {
    --primary-color: #39424E;
    --accent-color: #A27250;
    --light-color: #D8DEE9;
    --bg-color: #2E3440;
    --text-color: #D8DEE9;
    --header-bg: #39424E;
    --font-main: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

/* ── Base ── */
body {
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

/* ── Header ── */
header {
    background-color: var(--header-bg);
    color: var(--light-color);
    padding: 2rem;
    text-align: center;
    position: relative;
}

h1 {
    margin: 0;
    font-weight: 300;
    font-size: 2rem;
    letter-spacing: 3px;
    text-transform: uppercase;
}

.back-link {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--light-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    font-weight: 300;
    transition: all 0.3s ease;
    letter-spacing: 1px;
}

.back-link i {
    margin-right: 8px;
    font-size: 0.9rem;
}

.back-link:hover {
    color: var(--accent-color);
}

/* ── Content ── */
.main-content {
    max-width: 1000px;
    margin: 60px auto;
    padding: 0 20px;
}

.project-description {
    background-color: #3B4252;
    padding: 40px;
    margin-bottom: 60px;
    line-height: 1.8;
    font-weight: 300;
}

.project-description h2 {
    margin-top: 0;
    font-weight: 300;
    letter-spacing: 2px;
    color: var(--text-color);
    font-size: 1.6rem;
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.project-description h2 i {
    color: var(--accent-color);
    margin-right: 15px;
}

.project-description p {
    margin: 0;
    font-size: 1rem;
}

/* ── Gallery ── */
.gallery {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.gallery-item {
    width: 100%;
    height: auto;
    display: block;
    transition: all 0.4s ease;
    filter: saturate(0.9);
    cursor: zoom-in;
}

.image-container {
    position: relative;
    overflow: hidden;
}

.image-container:hover .gallery-item {
    transform: scale(1.02);
}

/* ── Footer ── */
footer {
    background-color: var(--header-bg);
    color: var(--light-color);
    text-align: center;
    padding: 1.5rem;
    margin-top: 60px;
    font-weight: 300;
    letter-spacing: 1px;
}

/* ── Language switcher ── */
#lang-switcher {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.4);
    color: inherit;
    padding: 4px 8px;
    font-family: var(--font-main);
    font-size: 0.8rem;
    font-weight: 300;
    letter-spacing: 1px;
    cursor: pointer;
    border-radius: 2px;
    transition: border-color 0.2s;
}

#lang-switcher:hover {
    border-color: rgba(255, 255, 255, 0.8);
}

#lang-switcher option {
    background: var(--header-bg, #39424E);
    color: var(--light-color, #D8DEE9);
}

/* ── RTL overrides ── */
[dir="rtl"] .back-link {
    left: auto;
    right: 20px;
}

[dir="rtl"] .back-link i {
    margin-right: 0;
    margin-left: 8px;
}

[dir="rtl"] #lang-switcher {
    right: auto;
    left: 20px;
}

/* ── Mobile ── */
@media (max-width: 768px) {
    header {
        padding: 1.5rem;
        text-align: left;
        padding-left: 30px;
    }

    h1 {
        font-size: 1.6rem;
    }

    .back-link {
        position: static;
        transform: none;
        margin-bottom: 15px;
        display: inline-block;
    }

    .project-description {
        padding: 30px 25px;
    }
}

/* ── Lightbox ── */
#lightbox {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.95);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    cursor: zoom-out;
}

#lightbox.active {
    display: flex;
}

#lightbox img {
    max-width: 95vw;
    max-height: 95vh;
    object-fit: contain;
    cursor: default;
}

#lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    background: none;
    border: none;
    color: white;
    font-size: 2.5rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0.6;
    transition: opacity 0.2s;
}

#lightbox-close:hover {
    opacity: 1;
}