/* === Dark theme === */
body {
    background-color: #1e1e1e;
    color: #e0e0e0;
}

main {
    background-color: #1e1e1e;
}

header {
    background-color: #2a2a2a;
    border-bottom-color: #444;
}

.nav a {
    color: #e0e0e0;
}

.nav a:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.hamburger {
    color: #e0e0e0;
}

main ul,
.partner,
.image-container {
    background-color: #2f2f2f;
    border-color: #444;
}

main ul li,
.partner-name {
    color: #f0f0f0;
}

.accordion {
    background-color: #333;
    color: #e0e0e0;
    border-color: #444;
}

.accordion:hover {
    background-color: #3e3e3e;
}

.panel {
    background-color: #1b1b1b;
    border-color: #444;
}

.footer {
    background-color: #2a2a2a;
    color: #ccc;
}

.footer-section h3 {
    color: #e0e0e0;
}

.footer-bottom {
    border-top-color: #444;
}

.footer a {
    color: #8ab4ff;
}

.more-button {
    background-color: #3a3a3a;
    color: #e0e0e0;
    border-color: #555;
}

.more-button:hover {
    background-color: #4a4a4a;
    border-color: #666;
}

.theme-popup {
    background-color: #1f1f1f;
    border-color: #555;
}

.theme-option:hover {
    background-color: #333;
}

.theme-option.active {
    background-color: #444;
}

.theme-label {
    color: #e0e0e0;
}

#theme-toggle {
    background-color: transparent;
    color: #e0e0e0;
    border-color: #555;
}

#theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.lang-switcher {
    border-color: #555;
}

.lang-btn {
    color: #e0e0e0;
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.lang-btn.active {
    background-color: rgba(255, 255, 255, 0.18);
    color: #fff;
}

.copy-text {
    border-bottom-color: rgba(255, 255, 255, 0.25);
}

.copy-text:hover {
    border-bottom-color: rgba(255, 255, 255, 0.6);
}

.partner:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
}

.image-container:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.nav-links {
    border-top-color: #444;
}

.nav a.active {
    background-color: rgba(255, 255, 255, 0.14);
    color: #fff;
}

.projects-timeline::before {
    background-color: #444;
}

.projects-timeline .year-block::before {
    background-color: #2a2a2a;
    border-color: #8ab4ff;
}