:root {
  --bg: #0f0f14;
  --surface: #191920;
  --surface-2: #23232c;
  --line: #2f2f3a;
  --text: #f2f2f7;
  --muted: #8f8f9e;
  --accent: #8b7dff;
  --accent-2: #22b8cf;
  --accent-ink: #ffffff;
  --accent-soft: rgba(139, 125, 255, 0.14);
  --ok: #3ddc97;
  --danger: #ff6b6b;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.45);
  --radius: 16px;
  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: #f5f5fa;
    --surface: #ffffff;
    --surface-2: #ededf4;
    --line: #dedee8;
    --text: #15151c;
    --muted: #6b6b7b;
    --accent: #6a5cf0;
    --accent-2: #1597ab;
    --accent-soft: rgba(106, 92, 240, 0.1);
    --ok: #12a26a;
    --danger: #d93b3b;
    --shadow: 0 10px 40px rgba(20, 20, 40, 0.18);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.4 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; opacity: 0.45; }
svg { fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.sr-only {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.muted { color: var(--muted); }

#home {
  max-width: 600px;
  margin: 0 auto;
  padding: max(12px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right))
           max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 0 16px;
}
h1 { margin: 0; font-size: 24px; font-weight: 800; letter-spacing: -0.02em; display: flex; align-items: center; gap: 10px; }
.logo { width: 32px; height: 32px; border-radius: 8px; }
h2 { margin: 0; font-size: 15px; font-weight: 700; letter-spacing: 0.02em; text-transform: uppercase; color: var(--muted); }

.status {
  font-size: 13px;
  font-weight: 600;
  padding: 4px 10px 4px 22px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line);
  position: relative;
  color: var(--muted);
}
.status::before {
  content: "";
  position: absolute;
  left: 9px; top: 50%;
  width: 7px; height: 7px;
  margin-top: -3.5px;
  border-radius: 50%;
  background: var(--muted);
}
.status[data-state="online"]::before { background: var(--ok); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ok) 25%, transparent); }
.status[data-state="connecting"]::before { animation: pulse 1s ease-in-out infinite alternate; }
@keyframes pulse { from { opacity: 0.3; } to { opacity: 1; } }

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* ---------- Avatars ---------- */

.avatar {
  flex: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 24px;
  line-height: 1;
  background: var(--surface-2);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.18);
  user-select: none;
}
.avatar-lg { width: 64px; height: 64px; font-size: 36px; }
.avatar-sm { width: 32px; height: 32px; font-size: 17px; }

/* ---------- You ---------- */

.me {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 10px 14px 14px;
}
.me-text { flex: 1; min-width: 0; }
.eyebrow { font-size: 12px; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em; }
/* One line; app.js shrinks the font until the whole name fits. */
.me-name { font-size: 21px; font-weight: 800; letter-spacing: -0.01em; line-height: 30px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
@media (max-width: 380px) {
  .me { gap: 12px; padding-left: 12px; padding-right: 4px; }
  .me .avatar-lg { width: 54px; height: 54px; font-size: 30px; }
  .me .icon-btn { width: 40px; }
}
.place { font-size: 14px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.place .flag { margin-right: 6px; }

.icon-btn {
  flex: none;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: none;
  color: var(--muted);
  display: grid;
  place-items: center;
}
.icon-btn:hover:not(:disabled) { background: var(--surface-2); color: var(--text); }
.icon-btn svg { width: 22px; height: 22px; }

/* ---------- Banner ---------- */

.banner {
  margin-top: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  background: var(--accent-soft);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-weight: 600;
}
.banner[hidden] { display: none; }

/* ---------- Peers ---------- */

.peers { margin-top: 24px; }
.section-head { display: flex; align-items: center; justify-content: space-between; margin: 0 2px 10px; min-height: 28px; }
.count { font-size: 14px; }

.peer-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.peer {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.peer:hover { border-color: color-mix(in srgb, var(--accent) 60%, var(--line)); }
.peer:active { transform: scale(0.99); }
.peer.dragover { border-color: var(--accent); background: var(--accent-soft); }
.peer-text { flex: 1; min-width: 0; }
.peer-name { font-weight: 700; line-height: 22px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.peer-go { flex: none; width: 20px; height: 20px; color: var(--muted); }
.peer-new { animation: pop 0.35s ease-out; }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.empty { padding: 22px 18px; text-align: center; }
.empty[hidden] { display: none; }
.empty p { margin: 4px 0; }
.empty-art { font-size: 34px; margin-bottom: 6px; }
.empty .secondary { margin: 14px auto 0; }
.hint { font-size: 14px; margin: 10px 2px 0; }
.hint[hidden] { display: none; }

/* ---------- Buttons ---------- */

.primary, .secondary {
  height: 48px;
  padding: 0 18px;
  border-radius: 12px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.primary { border: 0; background: var(--accent); color: var(--accent-ink); }
.secondary { border: 1px solid var(--line); background: var(--surface-2); }
.primary svg, .secondary svg { width: 19px; height: 19px; }
.link {
  border: 0;
  background: none;
  padding: 4px 2px;
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
}
.row { display: flex; gap: 10px; }
.row > * { flex: 1; }

/* ---------- Sheets ---------- */

dialog.sheet {
  width: min(520px, calc(100vw - 24px));
  max-height: calc(100dvh - 24px);
  margin: auto;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow);
}
dialog.sheet::backdrop { background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(3px); -webkit-backdrop-filter: blur(3px); }
dialog.sheet[open] { animation: rise 0.2s ease-out; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
@media (max-width: 560px) {
  dialog.sheet {
    width: 100vw;
    max-width: 100vw;
    margin: auto 0 0;
    border-radius: 22px 22px 0 0;
    padding-bottom: max(16px, env(safe-area-inset-bottom));
  }
}
#send-form { display: grid; gap: 12px; }
.sheet-head { display: flex; align-items: center; gap: 12px; }
.sheet-title { flex: 1; min-width: 0; }
.sheet-name { font-size: 18px; font-weight: 800; }

.drop {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 84px;
  padding: 14px;
  border: 2px dashed var(--line);
  border-radius: 14px;
  color: var(--muted);
  font-weight: 600;
  cursor: pointer;
  text-align: center;
}
.drop:hover, .drop.dragover { border-color: var(--accent); color: var(--accent); background: var(--accent-soft); }
.drop input { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.drop svg { width: 26px; height: 26px; flex: none; }

.picked { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; max-height: 32vh; overflow: auto; }
.picked:empty { display: none; }
.picked li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 6px 8px 12px;
  border-radius: 10px;
  background: var(--surface-2);
  font-size: 14px;
}
.picked .fname { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.picked .fsize { color: var(--muted); flex: none; }
.picked .remove { width: 30px; height: 30px; border-radius: 8px; }
.picked .remove svg { width: 16px; height: 16px; }

textarea {
  width: 100%;
  resize: vertical;
  min-height: 72px;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg);
  font-size: 16px;
  outline: none;
}
textarea:focus { border-color: var(--accent); }
#send-btn { width: 100%; }

.incoming-lead { margin: 14px 0 10px; font-size: 16px; }
#incoming-dialog .row { margin-top: 14px; }
.incoming-code { margin: 12px 0 0; font-size: 13px; }
.incoming-code:empty { display: none; }

/* ---------- Activity ---------- */

.activity { margin-top: 28px; }
.activity[hidden] { display: none; }
.awake-hint { margin: -2px 2px 10px; }
.keep-awake { position: fixed; left: 0; bottom: 0; width: 1px; height: 1px; opacity: 0.01; pointer-events: none; }
.activity-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.item { padding: 12px; display: grid; gap: 10px; }
.item-head { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.item-head .who { flex: 1; min-width: 0; }
.item-head .who b { font-weight: 700; }
.item-head .when { color: var(--muted); font-size: 13px; flex: none; }
.tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--muted);
  flex: none;
}
.tag.ok { color: var(--ok); }
.tag.bad { color: var(--danger); }

.message {
  margin: 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: var(--surface-2);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 15px;
}
.message a { color: var(--accent); }

.files { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.file {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 8px 8px 10px;
  border-radius: 10px;
  background: var(--surface-2);
  font-size: 14px;
}
.file .thumb { width: 40px; height: 40px; border-radius: 8px; object-fit: cover; flex: none; background: var(--bg); }
.file .ficon { width: 40px; height: 40px; border-radius: 8px; display: grid; place-items: center; background: var(--bg); color: var(--muted); flex: none; }
.file .ficon svg { width: 20px; height: 20px; }
.file .fmeta { flex: 1; min-width: 0; }
.file .fname { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.file .fsize { color: var(--muted); font-size: 13px; }
.file .actions { display: flex; gap: 4px; flex: none; }
.file .actions .icon-btn, .item-actions .icon-btn { width: 38px; height: 38px; color: var(--accent); }
.file .actions .icon-btn svg { width: 20px; height: 20px; }

.progress { display: grid; gap: 6px; }
.bar { height: 6px; border-radius: 3px; background: var(--surface-2); overflow: hidden; }
.bar > span {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.2s linear;
}
.progress-text { display: flex; justify-content: space-between; gap: 8px; font-size: 13px; color: var(--muted); }

.item-actions { display: flex; align-items: center; justify-content: flex-end; gap: 8px; flex-wrap: wrap; }
.item-note { margin-right: auto; font-size: 13px; }
.item-actions a.primary { text-decoration: none; }
.item-actions .secondary, .item-actions .primary { height: 38px; padding: 0 12px; font-size: 14px; border-radius: 10px; }

.note { font-size: 13px; text-align: center; margin: 28px 0 0; }

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: max(24px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  max-width: calc(100vw - 32px);
  padding: 11px 16px;
  border-radius: 12px;
  background: var(--text);
  color: var(--bg);
  font-weight: 600;
  font-size: 14px;
  box-shadow: var(--shadow);
  z-index: 10;
}
.toast[hidden] { display: none; }

/* ---------- Install card ---------- */

.install {
  position: relative;
  margin-top: 24px;
  padding: 16px;
  display: grid;
  gap: 14px;
}
.install[hidden] { display: none; }

.install-close {
  position: absolute;
  top: 6px;
  right: 6px;
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 10px;
  background: none;
  color: var(--muted);
  display: grid;
  place-items: center;
}
.install-close svg { width: 20px; height: 20px; }

.install-head { display: flex; align-items: center; gap: 12px; padding-right: 32px; }
.logo-lg { width: 48px; height: 48px; border-radius: 11px; flex: none; }
.install-title { font-weight: 800; font-size: 17px; line-height: 1.2; }
.install-sub { font-size: 14px; margin-top: 2px; }

.install-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; font-size: 15px; }
.install-steps[hidden] { display: none; }
.install-steps li { display: flex; align-items: center; gap: 10px; }
.install-steps .num {
  flex: none;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 800;
}
.install-steps .step { flex: 1; }
.install-steps svg { flex: none; width: 19px; height: 19px; }
.install-steps svg.accent { color: var(--accent); }

.install-btn {
  height: 46px;
  border: 1px solid var(--accent);
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 16px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
.install-btn[hidden] { display: none; }
.install-btn svg { width: 19px; height: 19px; stroke-width: 2.2; }