/* SPDX-License-Identifier: MIT */
/* ZMK BLE Messenger. One stylesheet, no framework. Light and dark themes follow the system unless the
   settings choose one (html[data-theme]). Sizes are in rem so the user's font size counts. */

:root {
  color-scheme: light;
  --font: system-ui, -apple-system, "Segoe UI", "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  --bg: #f3f5f9;
  --surface: #ffffff;
  --surface-2: #eef1f7;
  --surface-3: #e3e8f1;
  --border: #dbe1eb;
  --text: #141821;
  --muted: #566074;
  --faint: #7d889b;
  --accent: #5263e6;
  --accent-2: #8a5cf0;
  --accent-text: #3c4bd0;
  --accent-soft: #e8ebfd;
  --on-accent: #ffffff;
  --ok: #0f7d52;
  --ok-soft: #dcf4e8;
  --warn: #8d5800;
  --warn-soft: #fcefcf;
  --bad: #c0283a;
  --bad-soft: #fde3e7;
  --bubble-in: #ffffff;
  --bubble-out: #5263e6;
  --shadow: 0 1px 2px rgb(20 24 33 / 0.06), 0 10px 30px rgb(20 24 33 / 0.10);
  --ring: 0 0 0 3px rgb(82 99 230 / 0.38);
  --sidebar: 20rem;
  --r: 1rem;
  --r-sm: 0.65rem;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { color-scheme: dark; --bg: #0c0f14; --surface: #12161d; --surface-2: #181d26; --surface-3: #212835; --border: #262d3a; --text: #eef1f6; --muted: #a3adbf; --faint: #748096; --accent: #5a6bf0; --accent-text: #a1acff; --accent-soft: #1d2346; --ok: #3ddc97; --ok-soft: #10301f; --warn: #f3bd55; --warn-soft: #342a10; --bad: #ff7987; --bad-soft: #3a1820; --bubble-in: #181d26; --bubble-out: #4d5ee6; --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 32px rgb(0 0 0 / 0.5); --ring: 0 0 0 3px rgb(130 146 255 / 0.45); }
}
:root[data-theme="dark"] { color-scheme: dark; --bg: #0c0f14; --surface: #12161d; --surface-2: #181d26; --surface-3: #212835; --border: #262d3a; --text: #eef1f6; --muted: #a3adbf; --faint: #748096; --accent: #5a6bf0; --accent-text: #a1acff; --accent-soft: #1d2346; --ok: #3ddc97; --ok-soft: #10301f; --warn: #f3bd55; --warn-soft: #342a10; --bad: #ff7987; --bad-soft: #3a1820; --bubble-in: #181d26; --bubble-out: #4d5ee6; --shadow: 0 1px 2px rgb(0 0 0 / 0.4), 0 12px 32px rgb(0 0 0 / 0.5); --ring: 0 0 0 3px rgb(130 146 255 / 0.45); }

*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 0.9375rem/1.5 var(--font); -webkit-text-size-adjust: 100%; text-size-adjust: 100%;
  overscroll-behavior: none; -webkit-tap-highlight-color: transparent;
}
[hidden] { display: none !important; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, p { margin: 0; }
a { color: var(--accent-text); }
:focus-visible { outline: none; box-shadow: var(--ring); border-radius: 0.5rem; }
.sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.noscript { padding: 1rem; }

.icon { width: 1.25rem; height: 1.25rem; flex: none; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.icon.big { width: 2rem; height: 2rem; }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  min-height: 2.5rem; padding: 0 1rem; border-radius: var(--r-sm);
  border: 1px solid var(--border); background: var(--surface); color: var(--text); font-weight: 600;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover { background: var(--surface-2); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { filter: brightness(1.08); background: var(--accent); }
.btn.ghost { background: transparent; border-color: transparent; color: var(--accent-text); }
.btn.ghost:hover { background: var(--accent-soft); }
.btn.danger { color: var(--bad); border-color: color-mix(in srgb, var(--bad) 40%, var(--border)); }
.btn.danger:hover { background: var(--bad-soft); }
.btn.small { min-height: 2rem; padding: 0 0.75rem; font-size: 0.85rem; }
.btn.large { min-height: 3rem; padding: 0 1.4rem; font-size: 1rem; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.icon-btn {
  display: inline-grid; place-items: center; width: 2.5rem; height: 2.5rem; flex: none;
  border: 0; border-radius: var(--r-sm); background: transparent; color: var(--muted);
}
.icon-btn:hover { background: var(--surface-2); color: var(--text); }
.icon-btn.round { border-radius: 999px; }
.icon-btn[disabled] { opacity: 0.4; cursor: not-allowed; }

/* ---- layout ---- */
.app { height: 100vh; height: 100dvh; display: grid; grid-template-columns: var(--sidebar) minmax(0, 1fr); }

.sidebar { display: flex; flex-direction: column; min-height: 0; background: var(--surface); border-right: 1px solid var(--border); padding-top: env(safe-area-inset-top); }
.sb-head { display: flex; align-items: center; justify-content: space-between; gap: 0.5rem; padding: 0.9rem 0.9rem 0.6rem 1rem; }
.brand { display: flex; align-items: center; gap: 0.7rem; min-width: 0; }
.logo { display: grid; place-items: center; width: 2.4rem; height: 2.4rem; border-radius: 0.8rem; color: #fff; flex: none; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.brand-name { font-weight: 750; letter-spacing: -0.01em; }
.brand-sub { font-size: 0.75rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.conn-card { margin: 0.4rem 0.9rem 0.9rem; padding: 0.85rem; border-radius: var(--r); background: var(--surface-2); border: 1px solid var(--border); display: grid; gap: 0.75rem; }
.conn-row { display: flex; align-items: flex-start; gap: 0.65rem; }
.dot { width: 0.65rem; height: 0.65rem; border-radius: 50%; background: var(--faint); margin-top: 0.42rem; flex: none; }
.conn-card[data-state="ready"] .dot { background: var(--ok); box-shadow: 0 0 0 4px var(--ok-soft); }
.conn-card[data-state="locked"] .dot { background: var(--warn); box-shadow: 0 0 0 4px var(--warn-soft); }
.conn-card[data-state="connecting"] .dot, .conn-card[data-state="choosing"] .dot { background: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
.conn-card[data-state="lost"] .dot { background: var(--bad); }
.conn-title { font-weight: 650; }
.conn-sub { font-size: 0.8rem; color: var(--muted); }
.conn-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.conn-actions .btn { flex: 1 1 auto; }
@keyframes pulse { 50% { opacity: 0.35; transform: scale(0.85); } }

.list-head { padding: 0.35rem 1.1rem; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--faint); }
.conv-list { list-style: none; margin: 0; padding: 0 0.5rem; flex: 1; min-height: 0; overflow-y: auto; }
.conv { display: flex; align-items: center; gap: 0.75rem; width: 100%; padding: 0.6rem 0.6rem; border: 0; border-radius: 0.85rem; background: transparent; text-align: left; }
.conv:hover { background: var(--surface-2); }
.conv[aria-current="true"] { background: var(--accent-soft); }
.avatar { position: relative; display: grid; place-items: center; width: 2.6rem; height: 2.6rem; border-radius: 0.9rem; background: var(--surface-3); color: var(--muted); flex: none; }
.conv[aria-current="true"] .avatar { background: var(--accent); color: var(--on-accent); }
.presence { position: absolute; right: -0.12rem; bottom: -0.12rem; width: 0.8rem; height: 0.8rem; border-radius: 50%; border: 2px solid var(--surface); background: var(--faint); }
.presence[data-on="ready"] { background: var(--ok); }
.presence[data-on="locked"] { background: var(--warn); }
.conv-text { min-width: 0; flex: 1; }
.conv-line { display: flex; justify-content: space-between; gap: 0.5rem; align-items: baseline; }
.conv-title { display: flex; align-items: baseline; gap: 0.4rem; min-width: 0; }
.conv-name { font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.slot-tag { display: inline-block; flex: none; padding: 0 0.4rem; border-radius: 0.4rem; background: var(--surface-3); color: var(--muted); font-size: 0.68rem; font-weight: 650; line-height: 1.45; white-space: nowrap; font-variant-numeric: tabular-nums; }
.conv[aria-current="true"] .slot-tag { background: var(--surface); color: var(--accent-text); }
.chat-title .slot-tag { margin-left: 0.25rem; vertical-align: 0.12em; }
.conv-time { font-size: 0.72rem; color: var(--faint); flex: none; }
.conv-preview { font-size: 0.82rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.badge { min-width: 1.2rem; height: 1.2rem; padding: 0 0.3rem; border-radius: 999px; background: var(--accent); color: #fff; font-size: 0.7rem; font-weight: 700; display: inline-grid; place-items: center; flex: none; }
.conv-empty { padding: 0.75rem 1rem; color: var(--faint); font-size: 0.85rem; }

.sb-foot { display: flex; justify-content: space-between; gap: 0.5rem; padding: 0.6rem 1rem calc(0.6rem + env(safe-area-inset-bottom)); border-top: 1px solid var(--border); font-size: 0.75rem; color: var(--faint); }
.foot-item { white-space: nowrap; }

.main { position: relative; min-width: 0; min-height: 0; display: flex; flex-direction: column; background: var(--bg); }

/* ---- hero (first run) ---- */
.hero { flex: 1; overflow-y: auto; display: grid; place-items: center; padding: 2rem 1.25rem; }
.hero-inner { width: min(34rem, 100%); text-align: center; display: grid; gap: 1.1rem; justify-items: center; }
.hero-art { width: min(20rem, 80%); height: auto; }
.art-base { fill: var(--surface-3); }
.art-keys rect { fill: var(--surface); stroke: var(--border); stroke-width: 1; }
.art-bubble { fill: var(--accent); }
.art-lines rect { fill: rgb(255 255 255 / 0.85); }
.art-lock rect { fill: var(--warn-soft); stroke: var(--warn); stroke-width: 2; }
.art-lock path { stroke: var(--warn); stroke-width: 2.4; stroke-linecap: round; }
.hero h1 { font-size: clamp(1.4rem, 4.5vw, 1.9rem); line-height: 1.2; letter-spacing: -0.02em; }
.lead { color: var(--muted); max-width: 30rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.6rem; justify-content: center; }
.hero-steps { list-style: none; margin: 0.6rem 0 0; padding: 0; display: grid; gap: 0.7rem; text-align: left; width: 100%; }
.hero-steps li { display: flex; gap: 0.8rem; align-items: flex-start; padding: 0.8rem 0.9rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); }
.hero-steps strong { display: block; }
.hero-steps span:not(.step-num) { color: var(--muted); font-size: 0.88rem; }
.step-num { display: inline-grid; place-items: center; width: 1.7rem; height: 1.7rem; border-radius: 50%; background: var(--accent-soft); color: var(--accent-text); font-weight: 750; font-size: 0.85rem; flex: none; }
.fineprint { font-size: 0.8rem; color: var(--faint); }

/* ---- chat ---- */
.chat { position: relative; display: flex; flex-direction: column; height: 100%; min-height: 0; }
.chat-head { display: flex; align-items: center; gap: 0.6rem; padding: calc(0.6rem + env(safe-area-inset-top)) 0.75rem 0.6rem; background: var(--surface); border-bottom: 1px solid var(--border); }
.chat-head .back { display: none; }
.chat-titles { min-width: 0; flex: 1; }
.chat-title { font-size: 1rem; font-weight: 700; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-sub { font-size: 0.8rem; color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chat-sub[data-tone="ok"] { color: var(--ok); }
.chat-sub[data-tone="warn"] { color: var(--warn); }
.chat-sub[data-tone="bad"] { color: var(--bad); }
.chat-tools { display: flex; align-items: center; gap: 0.25rem; }
.pill { display: inline-flex; align-items: center; gap: 0.3rem; height: 1.7rem; padding: 0 0.65rem; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 0.78rem; font-weight: 600; border: 0; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pill[data-tone="warn"] { background: var(--warn-soft); color: var(--warn); }
.pill[data-tone="bad"] { background: var(--bad-soft); color: var(--bad); }
.pill-btn { cursor: pointer; }
.pill-btn:hover { background: var(--surface-3); }

.banner { margin: 0.75rem 0.9rem 0; padding: 0.85rem 1rem; border-radius: var(--r); border: 1px solid var(--border); background: var(--surface); display: grid; gap: 0.6rem; box-shadow: var(--shadow); }
.banner[data-tone="warn"] { background: var(--warn-soft); border-color: color-mix(in srgb, var(--warn) 35%, var(--border)); }
.banner[data-tone="bad"] { background: var(--bad-soft); border-color: color-mix(in srgb, var(--bad) 35%, var(--border)); }
.banner-title { font-weight: 700; display: flex; gap: 0.5rem; align-items: center; }
.banner-body { color: var(--muted); font-size: 0.9rem; }
.banner-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }

.scroller { flex: 1; min-height: 0; overflow-y: auto; overscroll-behavior: contain; scroll-behavior: smooth; }
.messages { list-style: none; margin: 0; padding: 1rem 1rem 0.75rem; display: flex; flex-direction: column; gap: 0.35rem; min-height: 100%; justify-content: flex-end; }
.empty-chat { align-self: center; margin: auto; padding: 1rem; text-align: center; color: var(--faint); max-width: 22rem; }
.day { align-self: center; margin: 0.6rem 0 0.3rem; padding: 0.15rem 0.7rem; border-radius: 999px; background: var(--surface-2); color: var(--muted); font-size: 0.75rem; font-weight: 600; }

.msg { position: relative; display: flex; flex-direction: column; max-width: min(34rem, 84%); }
.msg.enter { animation: rise 0.18s ease-out; }
.msg.out { align-self: flex-end; align-items: flex-end; }
.msg.in { align-self: flex-start; align-items: flex-start; }
.msg:not(.cont) { margin-top: 0.45rem; }
@keyframes rise { from { opacity: 0; transform: translateY(6px); } }

.bubble { position: relative; padding: 0.55rem 0.85rem; border-radius: 1.15rem; overflow-wrap: anywhere; white-space: pre-wrap; max-width: 100%; }
.out .bubble { background: var(--bubble-out); color: #fff; border-bottom-right-radius: 0.35rem; }
.in .bubble { background: var(--bubble-in); border: 1px solid var(--border); border-bottom-left-radius: 0.35rem; }
.out .bubble a { color: #fff; text-decoration: underline; }
.msg.cont.out .bubble { border-top-right-radius: 0.35rem; }
.msg.cont.in .bubble { border-top-left-radius: 0.35rem; }
.bubble.file { white-space: normal; padding: 0.5rem; min-width: min(17rem, 78vw); }
.bubble[data-status="failed"], .bubble[data-status="cancelled"] { box-shadow: inset 0 0 0 2px color-mix(in srgb, var(--bad) 70%, transparent); }

.thumb { display: block; max-width: min(18rem, 100%); max-height: 16rem; border-radius: 0.8rem; background: var(--surface-3); margin-bottom: 0.4rem; object-fit: contain; }
.filerow { display: flex; align-items: center; gap: 0.7rem; }
.fileicon { display: grid; place-items: center; width: 2.6rem; height: 2.6rem; border-radius: 0.75rem; background: rgb(255 255 255 / 0.18); flex: none; }
.in .fileicon { background: var(--surface-2); color: var(--muted); }
.filetext { min-width: 0; flex: 1; }
.filename { font-weight: 650; overflow-wrap: anywhere; }
.filesub { font-size: 0.78rem; opacity: 0.8; }
.progress { height: 0.3rem; margin-top: 0.5rem; border-radius: 999px; background: rgb(255 255 255 / 0.25); overflow: hidden; }
.in .progress { background: var(--surface-3); }
.progress > i { display: block; height: 100%; width: 0; background: #fff; border-radius: inherit; transition: width 0.12s linear; }
.in .progress > i { background: var(--accent); }

.meta { display: flex; align-items: center; gap: 0.35rem; margin: 0.15rem 0.35rem 0; font-size: 0.72rem; color: var(--faint); font-variant-numeric: tabular-nums; }
.meta .icon { width: 0.95rem; height: 0.95rem; stroke-width: 2; }
.meta .ok { color: var(--ok); }
.meta .bad { color: var(--bad); }
.meta .warn { color: var(--warn); }
.meta-btn { border: 0; background: transparent; padding: 0 0.15rem; color: inherit; font-weight: 650; text-decoration: underline; }
.msg.cont .meta { display: none; }
.msg.cont .meta.always { display: flex; }

.msg-menu { position: absolute; top: -0.3rem; z-index: 2; display: none; gap: 0.1rem; padding: 0.2rem; border-radius: 0.8rem; background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); }
.msg.out .msg-menu { right: calc(100% - 0.5rem); }
.msg.in .msg-menu { left: calc(100% - 0.5rem); }
.msg:hover .msg-menu, .msg:focus-within .msg-menu, .msg.selected .msg-menu { display: flex; }
.msg-menu .icon-btn { width: 2rem; height: 2rem; }

.jump { position: absolute; right: 1rem; bottom: 6.4rem; width: 2.6rem; height: 2.6rem; border-radius: 50%; display: grid; place-items: center; border: 1px solid var(--border); background: var(--surface); color: var(--text); box-shadow: var(--shadow); }

.composer { padding: 0.5rem 0.75rem calc(0.6rem + env(safe-area-inset-bottom)); background: var(--surface); border-top: 1px solid var(--border); }
.compose-row { display: flex; align-items: flex-end; gap: 0.35rem; }
#input { flex: 1; min-height: 2.6rem; max-height: 9rem; resize: none; overflow-y: hidden; padding: 0.6rem 0.9rem; border: 1px solid var(--border); border-radius: 1.3rem; background: var(--surface-2); line-height: 1.45; outline: none; }
#input:focus { border-color: var(--accent); box-shadow: var(--ring); background: var(--surface); }
#input::placeholder { color: var(--faint); }
#input[disabled] { opacity: 0.6; }
.send { width: 2.6rem; height: 2.6rem; border-radius: 50%; border: 0; background: var(--accent); color: var(--on-accent); display: grid; place-items: center; flex: none; transition: transform 0.1s, opacity 0.15s; }
.send:hover { filter: brightness(1.08); }
.send:active { transform: scale(0.94); }
.send[disabled] { opacity: 0.35; cursor: not-allowed; filter: none; }
.composer-note { margin: 0.4rem 0.4rem 0; font-size: 0.78rem; color: var(--muted); display: flex; gap: 0.4rem; align-items: center; }
.composer-note.warn { color: var(--warn); }

.tray { display: flex; gap: 0.5rem; padding: 0 0 0.5rem; overflow-x: auto; }
.chip { position: relative; display: flex; align-items: center; gap: 0.55rem; padding: 0.4rem 2rem 0.4rem 0.45rem; border-radius: 0.85rem; background: var(--surface-2); border: 1px solid var(--border); flex: none; max-width: 15rem; }
.chip-thumb { width: 2.4rem; height: 2.4rem; border-radius: 0.6rem; object-fit: cover; background: var(--surface-3); display: grid; place-items: center; color: var(--muted); flex: none; }
.chip-text { min-width: 0; font-size: 0.82rem; }
.chip-name { font-weight: 650; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.chip-sub { color: var(--muted); font-size: 0.74rem; }
.chip-sub.warn { color: var(--warn); }
.chip-x { position: absolute; top: 0.25rem; right: 0.25rem; width: 1.5rem; height: 1.5rem; }
.chip-x .icon { width: 0.9rem; height: 0.9rem; }

.dropzone { position: absolute; inset: 0; z-index: 5; display: grid; place-items: center; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(3px); border: 3px dashed var(--accent); border-radius: var(--r); margin: 0.6rem; pointer-events: none; }
.dropzone-box { display: grid; gap: 0.4rem; justify-items: center; color: var(--accent-text); font-size: 1.05rem; }

/* ---- the unlock guide ---- */
.lockguide { display: grid; gap: 0.75rem; }
.keys { display: flex; align-items: center; gap: 0.6rem; flex-wrap: wrap; }
.keycap { display: inline-grid; place-items: center; min-width: 3rem; height: 2.5rem; padding: 0 0.8rem; border-radius: 0.6rem; background: var(--surface); border: 1px solid var(--border); border-bottom-width: 3px; font: 700 0.85rem/1 var(--mono); color: var(--text); box-shadow: 0 1px 0 rgb(0 0 0 / 0.04); }
.plus { color: var(--faint); font-weight: 700; }
.stick { width: 2.5rem; height: 2.5rem; border-radius: 50%; background: radial-gradient(circle at 50% 40%, var(--surface) 0 28%, var(--surface-3) 30% 100%); border: 1px solid var(--border); position: relative; }
.stick::after { content: ""; position: absolute; inset: 0; margin: auto; width: 0.7rem; height: 0.7rem; border-radius: 50%; background: var(--accent); }
.keylabel { color: var(--muted); font-size: 0.85rem; }
.lockstatus { display: flex; align-items: center; gap: 0.6rem; color: var(--muted); font-size: 0.88rem; }
.lockactions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.spinner { width: 1rem; height: 1rem; border-radius: 50%; border: 2px solid var(--surface-3); border-top-color: var(--accent); animation: spin 0.8s linear infinite; flex: none; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- dialogs ---- */
dialog.sheet { width: min(32rem, calc(100vw - 1.5rem)); max-height: min(90vh, 46rem); padding: 0; border: 1px solid var(--border); border-radius: 1.25rem; background: var(--surface); color: var(--text); box-shadow: var(--shadow); overflow: hidden; }
dialog.sheet.small { width: min(24rem, calc(100vw - 1.5rem)); }
dialog.sheet::backdrop { background: rgb(8 10 16 / 0.55); backdrop-filter: blur(2px); }
.sheet-inner { display: flex; flex-direction: column; max-height: inherit; }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 1rem 1rem 0.4rem 1.25rem; }
.sheet-head h2 { font-size: 1.1rem; }
.sheet-foot { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; padding: 0.9rem 1.25rem 1.1rem; flex-wrap: wrap; }
.steps { list-style: none; margin: 0; padding: 0.4rem 1.25rem 0.6rem; display: grid; gap: 0.9rem; overflow-y: auto; }
.step { display: flex; gap: 0.85rem; align-items: flex-start; opacity: 0.55; }
.step[data-state="active"], .step[data-state="error"] { opacity: 1; }
.step[data-state="done"] { opacity: 0.85; }
.step[data-state="done"] .step-num { background: var(--ok-soft); color: var(--ok); }
.step[data-state="error"] .step-num { background: var(--bad-soft); color: var(--bad); }
.step-body { display: grid; gap: 0.5rem; min-width: 0; flex: 1; }
.step-body h3 { font-size: 0.98rem; }
.step-body p { color: var(--muted); font-size: 0.88rem; }
.step-body .btn { justify-self: start; }
.step-status { color: var(--text) !important; font-weight: 600; }
.notice { margin: 0 1.25rem 0.5rem; padding: 0.7rem 0.9rem; border-radius: var(--r-sm); background: var(--surface-2); color: var(--muted); font-size: 0.86rem; }
.notice.warn { background: var(--warn-soft); color: var(--warn); }
.notice.bad { background: var(--bad-soft); color: var(--bad); }
.form { display: grid; gap: 1rem; padding: 0.5rem 1.25rem 0.4rem; overflow-y: auto; }
.field { display: grid; gap: 0.4rem; border: 0; margin: 0; padding: 0; min-width: 0; }
.field.row { grid-template-columns: 1fr auto; align-items: center; gap: 1rem; }
.field legend, .field > label { font-weight: 650; font-size: 0.92rem; padding: 0; }
.field-text { display: grid; gap: 0.15rem; }
.field-text label { font-weight: 650; font-size: 0.92rem; }
.field small { color: var(--muted); font-size: 0.8rem; }
.field.data { grid-template-columns: 1fr auto; align-items: center; gap: 1rem; padding-top: 0.6rem; border-top: 1px solid var(--border); }
input[type="number"], select { min-height: 2.5rem; padding: 0 0.75rem; border-radius: var(--r-sm); border: 1px solid var(--border); background: var(--surface-2); width: 100%; }
.segmented { display: inline-flex; padding: 0.2rem; border-radius: 0.8rem; background: var(--surface-2); border: 1px solid var(--border); justify-self: start; }
.segmented label { position: relative; }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span { display: block; padding: 0.4rem 0.9rem; border-radius: 0.6rem; font-weight: 600; font-size: 0.88rem; color: var(--muted); }
.segmented input:checked + span { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgb(0 0 0 / 0.15); }
.segmented input:focus-visible + span { box-shadow: var(--ring); }
.switch { appearance: none; -webkit-appearance: none; width: 2.8rem; height: 1.6rem; border-radius: 999px; background: var(--surface-3); position: relative; cursor: pointer; border: 1px solid var(--border); transition: background 0.15s; flex: none; margin: 0; }
.switch::after { content: ""; position: absolute; top: 0.15rem; left: 0.15rem; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 0.3); transition: transform 0.15s; }
.switch:checked { background: var(--accent); border-color: var(--accent); }
.switch:checked::after { transform: translateX(1.2rem); }
.advanced { border: 1px solid var(--border); border-radius: var(--r-sm); padding: 0.6rem 0.8rem; display: grid; gap: 0.8rem; }
.advanced summary { cursor: pointer; font-weight: 650; }
.advanced[open] summary { margin-bottom: 0.6rem; }
.facts { margin: 0; padding: 0.4rem 1.25rem 0.6rem; display: grid; grid-template-columns: minmax(7rem, auto) 1fr; gap: 0.45rem 1rem; font-size: 0.88rem; overflow-y: auto; }
.facts dt { color: var(--muted); }
.facts dd { margin: 0; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; white-space: pre-line; }
.confirm-body { padding: 0.3rem 1.25rem 0.4rem; color: var(--muted); }

/* ---- toasts ---- */
/* A manual popover lives in the top layer, so a toast raised from inside a modal dialog (the copy button
   of the details) is drawn above the dialog's backdrop instead of under it. */
.toasts { position: fixed; z-index: 100; inset: auto; right: 1rem; top: calc(1rem + env(safe-area-inset-top)); margin: 0; padding: 0; border: 0; background: none; color: inherit; overflow: visible; height: auto; display: grid; gap: 0.5rem; width: min(22rem, calc(100vw - 2rem)); pointer-events: none; }
.toasts:not(:popover-open) { display: none; }
.toast { pointer-events: auto; padding: 0.7rem 0.9rem; border-radius: var(--r-sm); background: var(--surface); border: 1px solid var(--border); box-shadow: var(--shadow); display: flex; gap: 0.6rem; align-items: flex-start; animation: rise 0.2s ease-out; }
.toast strong { display: block; }
.toast small { color: var(--muted); }
.toast[data-tone="ok"] .icon { color: var(--ok); }
.toast[data-tone="warn"] .icon { color: var(--warn); }
.toast[data-tone="bad"] .icon { color: var(--bad); }

/* ---- small screens: one pane at a time ---- */
@media (max-width: 899px) {
  .app { grid-template-columns: 1fr; position: relative; overflow: hidden; }
  .sidebar, .main { position: absolute; inset: 0; transition: transform 0.22s ease, visibility 0s linear 0s; }
  .app[data-view="chat"] .sidebar { transform: translateX(-100%); visibility: hidden; transition: transform 0.22s ease, visibility 0s linear 0.22s; }
  .app[data-view="list"] .main { transform: translateX(100%); visibility: hidden; transition: transform 0.22s ease, visibility 0s linear 0.22s; }
  .chat-head .back { display: inline-grid; }
  .msg { max-width: 90%; }
  #input { font-size: 1rem; }
  .toasts { top: auto; bottom: calc(5.5rem + env(safe-area-inset-bottom)); right: 0.75rem; left: 0.75rem; width: auto; }
  dialog.sheet { width: 100vw; max-width: 100vw; margin: auto 0 0; border-radius: 1.25rem 1.25rem 0 0; max-height: 92dvh; padding-bottom: env(safe-area-inset-bottom); }
  dialog.sheet.small { width: calc(100vw - 1.5rem); margin: auto; border-radius: 1.25rem; }
  .jump { bottom: 6rem; }
}
@media (max-width: 420px) {
  .conn-actions .btn { width: 100%; }
  .chat-tools .pill { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* ---- the bridge: devices, presence, adding this browser ---- */
.presence[data-on="secure"] { background: var(--ok); }
.presence[data-on="online"] { background: var(--warn); }
.presence[data-on="pending"] { background: var(--warn); }
.presence-label { font-size: 0.75rem; color: var(--muted); white-space: nowrap; }
.presence-label[data-state="online"] { color: var(--ok); }
.presence-label[data-state="pending"] { color: var(--warn); }
.behavior-key { display: block; padding: 0.7rem; border-radius: var(--r-sm); background: var(--accent-soft); color: var(--accent-text); font-weight: 700; }
#dlg-connect .sheet-inner { overflow-y: auto; }
#dlg-connect .steps { overflow: visible; flex-shrink: 0; }
#connect-trust { flex-shrink: 0; }
#connect-trust .advanced { margin: 0.7rem 1.25rem; font-size: 0.85rem; }
#connect-trust .advanced p { margin-top: 0.7rem; color: var(--muted); }
.conv[data-kind="all"] .avatar { background: var(--accent-soft); color: var(--accent-text); }
.conv[data-kind="all"][aria-current="true"] .avatar { background: var(--accent); color: var(--on-accent); }
.conn-card[data-state="not-paired"] .dot, .conn-card[data-state="needs-enroll"] .dot { background: var(--warn); box-shadow: 0 0 0 4px var(--warn-soft); }
.conn-card[data-state="enrolling"] .dot, .conn-card[data-state="authenticating"] .dot, .conn-card[data-state="revoking"] .dot { background: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
.conn-card[data-state="failed"] .dot { background: var(--bad); }
input[type="text"] { min-height: 2.5rem; padding: 0 0.75rem; border-radius: var(--r-sm); border: 1px solid var(--border); background: var(--surface-2); width: 100%; }
.lead-small { margin: 0; padding: 0 1.25rem; color: var(--muted); font-size: 0.9rem; }
.origin-box { margin: 0.7rem 1.25rem 0.2rem; padding: 0.8rem 1rem; border-radius: var(--r); border: 2px solid var(--accent); background: var(--accent-soft); display: grid; gap: 0.25rem; }
.origin-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--accent-text); }
.origin { font: 700 clamp(1.05rem, 4.2vw, 1.35rem) / 1.25 var(--mono); overflow-wrap: anywhere; }
.origin-hint { font-size: 0.8rem; color: var(--muted); }
.code-dots { display: grid; grid-template-columns: repeat(20, 1fr); gap: 0.25rem; margin: 0.2rem 1.25rem 0; }
.code-dots i { height: 0.55rem; border-radius: 999px; background: var(--surface-3); transition: background 0.1s; }
.code-dots i[data-on="1"] { background: var(--accent); }
.enroll-status { margin: 0.5rem 1.25rem 0; min-height: 1.4rem; font-weight: 600; font-size: 0.9rem; }
.enroll-status[data-tone="bad"] { color: var(--bad); }
.enroll-status[data-tone="ok"] { color: var(--ok); }
.demo-controls { margin: 0 1.25rem 0.6rem; padding: 0.7rem 0.9rem; border-radius: var(--r-sm); background: var(--surface-2); display: grid; gap: 0.5rem; font-size: 0.88rem; }
.demo-buttons { display: flex; gap: 0.5rem; flex-wrap: wrap; }