:root {
    color-scheme: dark;
}

body {
    font-family: system-ui, sans-serif;
    max-width: 60rem;
    margin: 2rem auto;
    padding: 0 1rem;
    background: #14161a;
    color: #e8e8e8;
}

h1 {
    font-size: 1.75rem;
    margin: 0 0 0.5rem;
}

header {
    margin: 2.5rem 0 0;
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.75rem;
    color: #7fb3e8;
    margin: 0 0 0.5rem;
}

.lede {
    font-size: 1.05rem;
    color: #c9c9c9;
    margin: 0;
}

.card h2 {
    font-size: 1.05rem;
    margin: 0 0 0.5rem;
}

.badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #9fd6ff;
    border: 1px solid #2f5b8a;
    background: #1a2c44;
    border-radius: 999px;
    padding: 0.15rem 0.65rem;
    margin: 0 0 0.6rem;
}

.meta {
    font-size: 0.8rem;
    color: #8a8a8a;
    margin: 0.6rem 0 0;
}

.ticks {
    margin: 0;
    padding-left: 1.2rem;
    color: #bdbdbd;
    font-size: 0.9rem;
}

.ticks li {
    margin: 0.35rem 0;
}

.ticks code {
    font-size: 0.85em;
    background: #14161a;
    border: 1px solid #333;
    border-radius: 0.3rem;
    padding: 0.05rem 0.35rem;
}

footer {
    margin: 2rem 0 1rem;
    font-size: 0.85rem;
    color: #8a8a8a;
}

a {
    color: #8ab4f8;
}

.nav {
    margin-bottom: 1rem;
}

.card {
    background: #1d2026;
    border: 1px solid #333;
    border-radius: 0.5rem;
    padding: 1rem;
    margin: 1rem 0;
}

.note {
    color: #999;
    font-size: 0.85rem;
}

/* Buttons and button-like labels (the file inputs hide inside these). */
.btn {
    display: inline-block;
    font-size: 1rem;
    padding: 0.5rem 1.5rem;
    border: 1px solid #4a5568;
    border-radius: 0.4rem;
    background: #2d3748;
    color: #fff;
    cursor: pointer;
    user-select: none;
}

.btn:hover:not(.disabled) {
    background: #3a465c;
}

.btn.primary {
    background: #2b6cb0;
    border-color: #2b6cb0;
}

.btn.primary:hover:not(:disabled) {
    background: #2c7fc4;
}

button.btn:disabled {
    cursor: default;
    opacity: 0.5;
}

.btn input[type="file"] {
    display: none;
}

/* Dropdowns (MIDI port assignment). */
select {
    font-size: 0.95rem;
    padding: 0.3rem 0.5rem;
    border: 1px solid #4a5568;
    border-radius: 0.4rem;
    background: #2d3748;
    color: #fff;
}

/* Progress bars. */
progress {
    width: 100%;
    height: 1.2rem;
    margin-top: 0.75rem;
    background: #2d3748;
    border: 1px solid #333;
    border-radius: 0.4rem;
    overflow: hidden;
}

progress::-webkit-progress-bar {
    background: #2d3748;
}

progress::-webkit-progress-value {
    background: #2b6cb0;
}

progress::-moz-progress-bar {
    background: #2b6cb0;
}

#status {
    display: block;
    margin-top: 0.5rem;
    min-height: 1.5em;
    color: #ccc;
}

#songStatus {
    display: block;
    margin-top: 0.5rem;
    min-height: 1.5em;
    color: #ccc;
}

/* ROM checklist. */
#romList {
    list-style: none;
    padding: 0;
    margin: 0.5rem 0 0;
}

#romList li {
    padding: 0.15rem 0;
}

#romList .found {
    color: #7fd67f;
}

#romList .missing {
    color: #e08080;
}

#romList .optional {
    color: #999;
}

/* Result player. */
#player {
    width: 100%;
    margin-top: 0.5rem;
}

#download {
    display: inline-block;
    margin-top: 0.5rem;
}

/* Project link with GitHub mark. */
.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.project-link svg {
    width: 1.1em;
    height: 1.1em;
    fill: currentcolor;
}

/* Landing page hero screenshot. */
.hero {
    margin: 1rem 0;
}

.hero img {
    width: 100%;
    height: auto;
    border: 1px solid #333;
    border-radius: 0.5rem;
}

.hero figcaption {
    margin-top: 0.35rem;
}

/* Landing page cards. */
.choices {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
    gap: 1rem;
}

.choices .card {
    text-decoration: none;
    color: inherit;
}

.choices .card:hover {
    border-color: #2b6cb0;
}

.choices h2 {
    font-size: 1.1rem;
    margin: 0 0 0.5rem;
}

.choices p {
    color: #999;
    font-size: 0.9rem;
    margin: 0;
}

/* Live page: MIDI device rows and activity dots. */
.device {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.4rem 0;
    border-top: 1px solid #2a2e35;
}

.device:first-child {
    border-top: none;
}

.device .name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.ports {
    display: flex;
    gap: 1.25rem;
    margin: 0.5rem 0;
}

.port {
    text-align: center;
}

.dot {
    width: 1.4rem;
    height: 1.4rem;
    border-radius: 50%;
    background: #333;
    border: 1px solid #555;
    margin: 0 auto 0.25rem;
    transition: background 0.05s;
}

.dot.lit {
    background: #7fd67f;
    border-color: #7fd67f;
    box-shadow: 0 0 0.5rem #7fd67f;
}

.port .count {
    font-size: 0.8rem;
    color: #999;
}

#lastMessage {
    font-family: monospace;
    font-size: 0.85rem;
    color: #999;
    min-height: 1.5em;
}

.row {
    display: flex;
    gap: 0.75rem;
    align-items: center;
    flex-wrap: wrap;
}