/* chute — one small stylesheet, no framework. Dark by default, light if you ask for it. */
:root {
    --bg: #0b0d12;
    --bg2: #12151d;
    --line: #232838;
    --fg: #e7eaf3;
    --dim: #99a1b8;
    --accent: #5ad1a4;
    --accent2: #2a8f6d;
    --bad: #ff7a6c;
    --ok: #5ad1a4;
    --radius: 14px;
    --maxw: 720px;
    color-scheme: dark;
}
@media (prefers-color-scheme: light) {
    :root {
        --bg: #f6f7fb; --bg2: #fff; --line: #e2e6f0; --fg: #171a22; --dim: #5d6579;
        --accent: #159c73; --accent2: #0e7a59; --ok: #159c73; --bad: #d1453b;
        color-scheme: light;
    }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* ---- chrome ---- */
.top, .bot {
    display: flex; align-items: center; gap: 10px;
    padding: 14px max(16px, env(safe-area-inset-left)) 14px max(16px, env(safe-area-inset-right));
    width: 100%; max-width: var(--maxw); margin: 0 auto;
}
.bot { color: var(--dim); font-size: 13px; padding-bottom: max(18px, env(safe-area-inset-bottom)); }
.grow { flex: 1; }
.brand { display: flex; align-items: center; gap: 9px; color: var(--fg); text-decoration: none; font-weight: 650; font-size: 19px; letter-spacing: -.01em; }
.brand img { display: block; }
main { flex: 1; width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 8px 16px 40px; }

/* ---- controls ---- */
button, .ghost {
    font: inherit; font-size: 14px; font-weight: 550;
    border-radius: 10px; padding: 9px 15px; cursor: pointer;
    border: 1px solid var(--line); background: transparent; color: var(--fg);
    text-decoration: none; display: inline-flex; align-items: center; justify-content: center;
    transition: background .12s, border-color .12s, transform .06s;
}
button:hover, .ghost:hover { background: var(--bg2); border-color: var(--dim); }
button:active { transform: translateY(1px); }
button:disabled { opacity: .5; cursor: default; }
.primary { background: var(--accent); border-color: var(--accent); color: #06251b; font-weight: 700; }
.primary:hover { background: var(--accent2); border-color: var(--accent2); color: #fff; }
.big { padding: 13px 24px; font-size: 16px; }
.danger:hover { border-color: var(--bad); color: var(--bad); }
.x { border: 0; background: transparent; color: var(--dim); padding: 2px 6px; font-size: 15px; line-height: 1; }
.x:hover { color: var(--bad); background: transparent; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

input[type=text], input:not([type]), #joincode {
    font: inherit; padding: 11px 14px; border-radius: 10px;
    border: 1px solid var(--line); background: var(--bg2); color: var(--fg);
    min-width: 0;
}
#joincode { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .06em; }

.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; margin: 12px 0; }
.row.center { justify-content: center; }
.muted, .sub { color: var(--dim); }
.small { font-size: 13px; }
.ok { color: var(--ok); }
.bad { color: var(--bad); }
.warn { color: var(--dim); font-size: 13px; border-left: 3px solid var(--line); padding-left: 10px; }

/* ---- home ---- */
.hero { text-align: center; padding-top: 18px; }
.hero h1 { font-size: clamp(26px, 6vw, 38px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 10px; }
.hero .sub { max-width: 46ch; margin: 0 auto 26px; }

.drop {
    border: 2px dashed var(--line); border-radius: var(--radius);
    padding: 44px 20px; cursor: pointer; background: var(--bg2);
    transition: border-color .15s, background .15s, transform .1s;
}
.drop:hover { border-color: var(--accent); }
body.dragging .drop { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, var(--bg2)); transform: scale(1.01); }
.dropicon { font-size: 30px; color: var(--accent); line-height: 1; }
.dropmain { font-size: 19px; font-weight: 600; margin-top: 10px; }
.dropsub { color: var(--dim); font-size: 14px; margin-top: 4px; }

.sep { display: flex; align-items: center; gap: 14px; color: var(--dim); font-size: 13px; margin: 26px 0; }
.sep::before, .sep::after { content: ''; flex: 1; height: 1px; background: var(--line); }

.joiner { display: flex; gap: 10px; align-items: center; justify-content: center; flex-wrap: wrap; }
.joiner label { color: var(--dim); font-size: 14px; }

/* ---- panels ---- */
.panel h2 { font-size: 24px; letter-spacing: -.02em; margin: 14px 0 6px; }
.hdrow { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.secttl { font-size: 13px; text-transform: uppercase; letter-spacing: .08em; color: var(--dim); font-weight: 600; margin: 26px 0 8px; }
.secttl .muted { text-transform: none; letter-spacing: 0; font-weight: 400; }

.codebox { background: var(--bg2); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; text-align: center; }
.code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: clamp(28px, 8vw, 44px); font-weight: 700; letter-spacing: .14em;
    color: var(--accent); word-break: break-all;
}
.codebox .row { justify-content: center; }
.link { color: var(--dim); font-size: 12px; word-break: break-all; user-select: all; font-family: ui-monospace, monospace; }
.qr { margin-top: 16px; }
.qr svg { width: min(240px, 70vw); height: auto; background: #fff; padding: 8px; border-radius: 10px; }

/* ---- file lists ---- */
.files { list-style: none; margin: 0; padding: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--bg2); }
.files:empty { display: none; }
.frow { display: flex; align-items: center; gap: 12px; padding: 11px 14px; border-bottom: 1px solid var(--line); font-size: 14px; }
.frow:last-child { border-bottom: 0; }
.fname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fsize { color: var(--dim); font-variant-numeric: tabular-nums; font-size: 13px; white-space: nowrap; }
.fstat { min-width: 84px; text-align: right; font-size: 12px; }
.fstat .bar { margin: 0; }
.empty { padding: 16px; color: var(--dim); font-size: 14px; text-align: center; }

/* ---- progress ---- */
.bar { height: 7px; border-radius: 99px; background: var(--line); overflow: hidden; margin: 10px 0 6px; }
.bar i { display: block; height: 100%; background: var(--accent); border-radius: 99px; transition: width .25s ease-out; }
.bar.good i { background: var(--ok); }
.bar.bad i { background: var(--bad); }
/* waiting to reconnect — progress is held, not lost */
.bar.wait i { background: repeating-linear-gradient(45deg, var(--accent), var(--accent) 8px, var(--accent2) 8px, var(--accent2) 16px); }

.peer { border: 1px solid var(--line); border-radius: var(--radius); padding: 14px 16px; margin-bottom: 10px; background: var(--bg2); }
.peerhd { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.peerst { color: var(--dim); font-size: 14px; margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sas { margin-left: auto; font-size: 12px; color: var(--dim); font-family: ui-monospace, monospace; border: 1px solid var(--line); border-radius: 99px; padding: 2px 9px; }

.waiting { display: flex; align-items: center; gap: 10px; color: var(--dim); font-size: 14px; padding: 16px; border: 1px dashed var(--line); border-radius: var(--radius); }
.pulse { width: 9px; height: 9px; border-radius: 99px; background: var(--accent); flex: none; animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: .25; transform: scale(.8); } 50% { opacity: 1; transform: scale(1.15); } }

/* ---- prose ---- */
.prose { max-width: 62ch; }
.prose h3 { margin: 24px 0 6px; font-size: 17px; }
.prose li { margin-bottom: 8px; }
.prose code { background: var(--bg2); border: 1px solid var(--line); border-radius: 5px; padding: 1px 5px; font-size: .9em; }

/* ---- toast ---- */
.toast {
    position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px);
    background: var(--fg); color: var(--bg); padding: 11px 18px; border-radius: 99px;
    font-size: 14px; font-weight: 550; opacity: 0; pointer-events: none;
    transition: opacity .2s, transform .2s; z-index: 50; max-width: 90vw; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }