:root {
    font-family: Inter, Avenir, Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 24px;
    font-weight: 400;

    /* Gruvbox base */
    color: #ebdbb2; /* fg */
    background-color: #1d2021; /* bg */

    /* Gruvbox variables */
    --bg: #1d2021; /* dark0 */
    --panel: #282828; /* dark1 */
    --border: #3c3836; /* dark2 */
    --text: #ebdbb2; /* light1 */
    --muted: #a89984; /* light4 */

    --accent: #83a598; /* blue */
    --info: #83a598; /* blue */
    --warning: #fabd2f; /* yellow */
    --error: #fb4934; /* red */
    --success: #b8bb26; /* green */

    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    -webkit-text-size-adjust: 100%;
}

.controls {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.container {
    margin: 0;
    padding-top: 10vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    text-align: center;
}

.row {
    display: flex;
    justify-content: center;
}

a {
    font-weight: 500;
    color: #83a598; /* blue */
    text-decoration: inherit;
}

a:hover {
    color: #8ec07c; /* aqua */
}

h1 {
    text-align: center;
}

button {
    background: #1d2021;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.4rem 0.75rem;
    border-radius: 8px;
    cursor: pointer;
    width: 100px;
}

button:hover {
    background: #32302f; /* dark2-ish */
}

body {
    margin: 0;
    font-family:
        system-ui,
        -apple-system,
        Segoe UI,
        Roboto,
        sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    display: grid;
    grid-template-rows: auto 1fr auto;
}

header,
footer {
    padding: 0.75rem 1.25rem;
    background: var(--panel);
    border-bottom: 1px solid var(--border);
}

footer {
    border-top: 1px solid var(--border);
    border-bottom: none;
    font-size: 0.85rem;
    color: var(--muted);
}

main {
    padding: 1rem;
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    grid-template-rows: auto 1fr;
    gap: 1rem;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.panel h2 {
    font-size: 1rem;
    margin: 0;
    font-weight: 600;
    color: var(--accent);
}

.status-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.status-item {
    background: #1d2021;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
}

.status-item span.label {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
}

.status-item span.value {
    font-size: 0.95rem;
    font-weight: 600;
}

button.primary {
    border-color: var(--accent);
}
button.success {
    border-color: var(--success);
}
button.warning {
    border-color: var(--warning);
}
button.danger {
    border-color: var(--error);
}

button:active {
    border-color: #83a598;
    background-color: #3c3836;
}

.alerts {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.alert {
    padding: 0.5rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    font-size: 0.85rem;
}

.alert.info {
    border-color: var(--info);
    color: var(--info);
}

.alert.warning {
    border-color: var(--warning);
    color: var(--warning);
}

.alert.error {
    border-color: var(--error);
    color: var(--error);
}

.wide {
    grid-column: 1 / -1;
}

.footer-blurb {
    display: flex;
    justify-content: space-between;
}

/* Full-screen darkened backdrop */
.modal-backdrop {
    position: fixed;
    inset: 0; /* top/right/bottom/left = 0 */
    background: var(--bg));

    display: flex;
    align-items: center;
    justify-content: center;

    z-index: 1000;
}

/* Modal container */
.modal {
    background: var(--panel);
    color: var(--text);

    width: 90%;
    max-width: 420px;

    padding: 2rem;
    border-radius: 12px;

    box-shadow:
        0 10px 25px rgba(0, 0, 0, 0.2),
        0 2px 6px rgba(0, 0, 0, 0.15);

    text-align: center;
}

/* Title */
.modal h1 {
    margin: 0 0 0.75rem;
    font-size: 1.5rem;
    font-weight: 600;
}

/* Body text */
.modal p {
    margin: 0 0 1.5rem;
    color: var(--muted);
    line-height: 1.4;
}

/* Primary action button */
.modal button {
    appearance: none;
    border: none;

    padding: 0.6rem 1.2rem;
    border-radius: 8px;

    font-size: 0.95rem;
    font-weight: 500;

    width: 100px;

    cursor: pointer;

    background: var(--accent); /* blue */
    color: var(--text);

    transition:
        background 0.15s ease,
        transform 0.1s ease;
}

.modal button:hover {
    background: var(--success));
}

.modal button:active {
    transform: translateY(1px);
}

.modal button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}