:root {
    --bg: #f6f7f9;
    --card: #ffffff;
    --fg: #16181d;
    --muted: #6b7280;
    --line: #e5e7eb;
    --accent: #2f6fed;
    --link: #1d4ed8;
    --file: #0e7490;
    --ok: #16a34a;
    --down: #d97706;
    --danger: #dc2626;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1115;
        --card: #171a21;
        --fg: #e8eaed;
        --muted: #9aa2b1;
        --line: #262b35;
        --accent: #5b8dff;
        --link: #8ab0ff;
        --file: #22d3ee;
        --ok: #4ade80;
        --down: #fbbf24;
        --danger: #f87171;
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--line);
    background: var(--card);
    position: sticky;
    top: 0;
    z-index: 2;
}

h1 {
    font-size: 18px;
    margin: 0;
    letter-spacing: -0.01em;
}

.status {
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--muted);
    white-space: nowrap;
}

.status.live {
    color: var(--ok);
    border-color: color-mix(in srgb, var(--ok) 40%, transparent);
}

.status.offline {
    color: var(--down);
    border-color: color-mix(in srgb, var(--down) 40%, transparent);
}

main {
    flex: 1;
    width: 100%;
    max-width: 720px;
    margin: 0 auto;
    padding: 16px 20px 32px;
}

#compose {
    display: flex;
    gap: 8px;
    margin-bottom: 18px;
}

#compose input {
    flex: 1;
    padding: 10px 12px;
    font: inherit;
    color: var(--fg);
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
}

#compose input:focus {
    outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
    border-color: var(--accent);
}

button {
    font: inherit;
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--fg);
    cursor: pointer;
}

button:hover {
    border-color: var(--accent);
    color: var(--accent);
}

#compose button {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

#compose button:hover {
    filter: brightness(1.08);
    color: #fff;
}

.empty {
    color: var(--muted);
    text-align: center;
    padding: 48px 0;
}

#feed {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card {
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 12px 14px;
    animation: in 180ms ease-out;
}

@keyframes in {
    from {
        opacity: 0;
        transform: translateY(-6px);
    }
}

.card-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--muted);
    margin-bottom: 6px;
}

.badge {
    text-transform: lowercase;
    padding: 1px 8px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--accent);
    border-color: color-mix(in srgb, var(--accent) 40%, transparent);
}

.badge.link {
    color: var(--link);
    border-color: color-mix(in srgb, var(--link) 40%, transparent);
}

.badge.image,
.badge.pdf {
    color: var(--file);
    border-color: color-mix(in srgb, var(--file) 40%, transparent);
}

.badge.file {
    color: var(--muted);
}

/* files */

#upload {
    display: flex;
    gap: 8px;
    margin: -6px 0 8px;
    align-items: center;
}

.file-field {
    flex: 1;
    min-width: 0;
    position: relative;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 12px;
    border: 1px dashed var(--line);
    border-radius: 8px;
    background: var(--card);
    color: var(--muted);
    font-size: 14px;
    cursor: pointer;
    overflow: hidden;
}

.file-field:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.file-field input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

#upload-ttl {
    font: inherit;
    padding: 9px 8px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--card);
    color: var(--fg);
}

.upload-status {
    margin: 0 0 12px;
    font-size: 13px;
    color: var(--muted);
}

.upload-status.error {
    color: var(--danger);
}

.file-meta {
    display: flex;
    align-items: baseline;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.file-name {
    color: var(--fg);
    font-weight: 500;
    overflow-wrap: anywhere;
}

.file-name:hover {
    color: var(--accent);
}

.file-size {
    color: var(--muted);
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    white-space: nowrap;
}

.file-preview {
    display: block;
    max-width: 100%;
    max-height: 320px;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: var(--bg);
}

.file-open {
    display: inline-block;
    margin-top: 2px;
    font-size: 14px;
    color: var(--accent);
    text-decoration: none;
    border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
    border-radius: 8px;
    padding: 6px 12px;
}

.file-open:hover {
    background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.ttl {
    margin-left: auto;
    font-variant-numeric: tabular-nums;
}

.card-body {
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}

.card-body a {
    color: var(--link);
}

.card.new {
    border-color: color-mix(in srgb, var(--accent) 55%, transparent);
}

footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 10px 20px;
    border-top: 1px solid var(--line);
    background: var(--card);
    color: var(--muted);
    font-size: 13px;
}

/* header right-hand side: connection state and the account */

.head-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

button.ghost {
    padding: 4px 10px;
    border-color: transparent;
    background: transparent;
    color: var(--muted);
    font-size: 13px;
    max-width: 40vw;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

button.ghost:hover {
    border-color: var(--line);
}

/* pairing screen and account panel: the two things a browser sees before and around the feed */

.panel {
    width: 100%;
    max-width: 460px;
    margin: 0 auto;
    padding: 20px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

#pair,
#devices {
    flex: 1;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 24px 20px;
}

/* these two set their own display, which would otherwise beat the hidden attribute */
#pair[hidden],
#devices[hidden] {
    display: none;
}

.panel h2 {
    margin: 0;
    font-size: 16px;
    letter-spacing: -0.01em;
}

.panel-lead {
    margin: 0;
    color: var(--muted);
    font-size: 14px;
    text-align: center;
}

.qr {
    width: 228px;
    height: 228px;
    padding: 10px;
    background: #fff;
    border-radius: 10px;
    /* the QR is black on white whatever the page does */
    border: 1px solid var(--line);
}

.pair-code {
    margin: 0;
    font-size: 30px;
    font-weight: 600;
    letter-spacing: 0.12em;
    font-variant-numeric: tabular-nums;
}

#pair-state {
    min-height: 2.5em;
}

#approve-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 6px;
    align-items: flex-start;
}

#approve-form label {
    font-size: 13px;
    color: var(--muted);
}

.row {
    width: 100%;
    display: flex;
    gap: 8px;
}

.row input {
    flex: 1;
    min-width: 0;
}

.panel input {
    font: inherit;
    padding: 9px 12px;
    color: var(--fg);
    background: var(--bg);
    border: 1px solid var(--line);
    border-radius: 8px;
    /* pairing codes are read letter by letter, so let them be spread out */
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.panel input:focus {
    outline: 2px solid color-mix(in srgb, var(--accent) 45%, transparent);
    border-color: var(--accent);
}

.devices {
    width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    flex-direction: column;
}

.device {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 8px 0;
    border-bottom: 1px solid var(--line);
    font-size: 14px;
    flex-wrap: wrap;
}

.device:last-child {
    border-bottom: none;
}

.device-name {
    font-weight: 500;
    overflow-wrap: anywhere;
}

.device-kind {
    font-size: 11px;
    text-transform: lowercase;
    padding: 1px 8px;
    border-radius: 999px;
    border: 1px solid var(--line);
    color: var(--muted);
}

.device-when {
    margin-left: auto;
    font-size: 12px;
    color: var(--muted);
}

button.linkish {
    border: none;
    background: none;
    padding: 0;
    font-size: 13px;
    color: var(--accent);
    text-decoration: underline;
}

button.linkish:disabled {
    color: var(--muted);
    cursor: default;
}

button.danger {
    border-color: color-mix(in srgb, var(--danger) 45%, transparent);
    color: var(--danger);
}

button.danger:hover {
    border-color: var(--danger);
    color: var(--danger);
}