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

:root {
    --font-display: 'Cabinet Grotesk', sans-serif;
    --font-mono: ui-monospace, 'Cascadia Code', 'Source Code Pro', Menlo, Consolas, monospace;
}

/* Light theme (default) */
html[data-theme="light"] {
    --bg: #faf7f2;
    --grid-line: #e0dbd0;
    --text-main: #1e1b16;
    --text-muted: #6b665c;
    --accent-red: #D64045;
    --accent-purple: #7A39BB;
    --accent-orange: #FF7A00;
}

/* Dark theme */
html[data-theme="dark"] {
    --bg: #0a0a0a;
    --grid-line: #1a1a1a;
    --text-main: #e0e0e0;
    --text-muted: #888;
    --accent-red: #D64045;
    --accent-purple: #9D4EDD;
    --accent-orange: #FF7A00;
}

body {
    font-family: var(--font-mono);
    background-color: var(--bg);
    background-image: linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
    background-size: 24px 24px;
    color: var(--text-main);
    line-height: 1.5;
    padding: 2rem 1rem;
    transition: background-color 0.25s ease, color 0.25s ease;
}

.container {
    max-width: 950px;
    margin: 0 auto;
    border-left: 2px solid var(--accent-red);
    padding-left: 1.5rem;
}

nav {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    margin-right: 0.75rem;
}

.nav-links a:hover {
    color: var(--accent-orange);
}

.nav-links a.current_page {
    text-decoration: underline;
}

h1, h2, h3 {
    font-family: var(--font-display);
    text-transform: uppercase;
}

h1 {
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    line-height: 0.9;
    margin-bottom: 1.5rem;
    color: var(--text-main);
    text-shadow: 4px 4px 0px var(--accent-purple);
}

h2 {
    font-size: 1.6rem;
    margin-top: 3rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--text-muted);
    padding-bottom: 0.5rem;
    display: inline-block;
}

p {
    font-size: 1rem;
    max-width: 70ch;
    margin-bottom: 1.25rem;
}

.grid {
    display: grid;
    gap: 2rem;
    margin-top: 1.5rem;
}

@media (min-width: 768px) {
    .grid-2 {
        grid-template-columns: 1fr 1fr;
    }
}

.hardware-box {
    background: color-mix(in srgb, var(--bg) 80%, #000 20%);
    border: 2px solid var(--text-muted);
    padding: 1.5rem;
    position: relative;
    box-shadow: 8px 8px 0px var(--text-muted);
    transition: all 0.1s linear;
}

.hardware-box h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-main);
}

.partner-box {
    margin-top: 3rem;
    border-color: var(--accent-purple);
}

.hardware-box.partner-box {
    border-color: var(--accent-purple);
}

.partner-note {
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    color: var(--accent-purple);
    margin-top: 1rem;
    font-style: italic;
}
.label {
    display: inline-block;
    background: var(--text-main);
    color: var(--bg);
    padding: 2px 8px;
    font-weight: bold;
    font-size: 0.8rem;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
}

.btn {
    display: inline-block;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    text-decoration: none;
    background: var(--bg);
    color: var(--accent-orange);
    border: 2px solid var(--accent-orange);
    padding: 0.75rem 1.5rem;
    box-shadow: 4px 4px 0px var(--accent-orange);
    margin-top: 1rem;
}

.btn:hover {
    background: var(--accent-orange);
    color: var(--bg);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--accent-orange);
}

.sys-info {
    font-size: 0.8rem;
    color: var(--accent-purple);
    margin-bottom: 0.5rem;
    display: block;
}

.theme-toggle {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    background: transparent;
    border: 1px solid var(--text-muted);
    color: var(--text-main);
    padding: 0.25rem 0.75rem;
    cursor: pointer;
    width: 106px;
    text-align:left;
}

.theme-toggle:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

footer {
    margin-top: 3rem;
    border-top: 2px dashed var(--text-muted);
    padding-top: 1rem;
    color: var(--text-muted);
    font-size: 0.8rem;
}

form {
    max-width: 500px;
    margin-top: 1.5rem;
}

form > div {
    margin-bottom: 1.25rem;
}

form label {
    display: block;
    font-family: var(--font-display);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    margin-bottom: 0.4rem;
}

form input,
form textarea {
    width: 100%;
    font-family: var(--font-mono);
    font-size: 1rem;
    color: var(--text-main);
    background: color-mix(in srgb, var(--bg) 80%, #000 20%);
    border: 2px solid var(--text-muted);
    padding: 0.75rem;
    box-shadow: 4px 4px 0px var(--text-muted);
    transition: all 0.1s linear;
}

form input:focus,
form textarea:focus {
    outline: none;
    border-color: var(--accent-orange);
    box-shadow: 4px 4px 0px var(--accent-orange);
}

form input::placeholder,
form textarea::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

form textarea {
    min-height: 140px;
    resize: vertical;
}

form button[type="submit"] {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 800;
    text-transform: uppercase;
    background: var(--bg);
    color: var(--accent-orange);
    border: 2px solid var(--accent-orange);
    padding: 0.75rem 1.5rem;
    box-shadow: 4px 4px 0px var(--accent-orange);
    cursor: pointer;
    transition: all 0.1s linear;
}

form button[type="submit"]:hover {
    background: var(--accent-orange);
    color: var(--bg);
    transform: translate(2px, 2px);
    box-shadow: 2px 2px 0px var(--accent-orange);
}

.feedback {
    margin-top: 1rem;
    font-size: 0.9rem;
    color: var(--accent-purple);
}

.feedback:empty {
    display: none;
}

.feedback--success {
    color: var(--accent-orange);
}

.feedback--error {
    color: var(--accent-red);
}

#artronicsEmail:hover {
    cursor: pointer;
    text-decoration: underline;
}

.toast {
    position: fixed;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--text-main);
    color: var(--bg);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    padding: 0.6rem 1.25rem;
    border: 2px solid var(--accent-orange);
    box-shadow: 4px 4px 0px var(--accent-orange);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease;
    z-index: 1000;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.naam_logo_box {
    position: relative;
}

.logo-img {
    position: absolute;
    left: -13rem;
    bottom: 0;
    height: 11rem;
    display: block;
}