/* Murmo: calm, quiet and trustworthy: deep petrol on cool neutrals. Light and dark follow the system.
 *
 * In order: colours and type · base · buttons and fields · sign-in · the app's layout · the thread · the composer
 * and its panels · start of a conversation · dialogs and toasts · narrow screens · the start page (index.html). */

/* ── colours and type ─────────────────────────────────────────────────────────────────────────────────────────── */

:root {
  color-scheme: light dark;
  --bg: #f5f7f8;
  --sidebar: #edf1f3;
  --panel: #ffffff;
  --text: #141c22;
  --muted: #56636c;
  --faint: #86929a;
  --line: #dfe5e9;
  --bubble: #e7eef0;
  --accent: #1d5c6e;
  --accent-hover: #174b5a;
  --accent-text: #ffffff;
  --danger: #b3261e;
  --ok: #2a7a52;
  --focus: #1d5c6e59;
  --shadow: 0 1px 2px #0000000d, 0 4px 16px #0000000a;
  --serif: ui-serif, "Iowan Old Style", "Charter", Georgia, "Times New Roman", serif;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --radius: 14px;
}

/* The dark colours twice, alike: once for "automatic" when the system is dark, once for the "dark" choice. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #10171b;
    --sidebar: #0b1216;
    --panel: #18222a;
    --text: #e6edf0;
    --muted: #9fadb5;
    --faint: #6f7e87;
    --line: #26343d;
    --bubble: #20303a;
    --accent: #5fb4c4;
    --accent-hover: #7cc4d1;
    --accent-text: #0b1216;
    --danger: #f2867e;
    --ok: #7fc59b;
    --focus: #5fb4c466;
    --shadow: 0 1px 2px #00000040, 0 4px 16px #00000033;
  }
}

:root[data-theme="light"] { color-scheme: light; }

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #10171b;
  --sidebar: #0b1216;
  --panel: #18222a;
  --text: #e6edf0;
  --muted: #9fadb5;
  --faint: #6f7e87;
  --line: #26343d;
  --bubble: #20303a;
  --accent: #5fb4c4;
  --accent-hover: #7cc4d1;
  --accent-text: #0b1216;
  --danger: #f2867e;
  --ok: #7fc59b;
  --focus: #5fb4c466;
  --shadow: 0 1px 2px #00000040, 0 4px 16px #00000033;
}

/* ── base ─────────────────────────────────────────────────────────────────────────────────────────────────────── */

* { box-sizing: border-box; }
html, body { margin: 0; }
/* In the app (body.in-app) the window is the app; on the start page (body.landing) the page scrolls. */
body.in-app, body.in-app #app { height: 100%; overflow: hidden; }
@supports (height: 100dvh) { body.in-app, body.in-app #app { height: 100dvh; } }
body {
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}
button, input, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.hidden { display: none !important; }
.spinner { width: 16px; height: 16px; border: 2px solid var(--line); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }
.drop { outline: 2px dashed var(--accent); outline-offset: -8px; }

/* ── buttons and fields ───────────────────────────────────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: 1px solid var(--line); background: var(--panel); border-radius: 10px;
  padding: 8px 14px; transition: background .15s, border-color .15s;
}
.btn:hover { background: var(--bubble); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.primary:hover { background: var(--accent-hover); }
.btn.ghost { border-color: transparent; background: transparent; }
.btn.ghost:hover { background: var(--bubble); }
.btn.danger { color: var(--danger); }
.btn[disabled] { opacity: .5; cursor: default; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.link { border: 0; background: none; padding: 0; color: var(--accent); text-decoration: underline; font-size: inherit; }

/* square buttons with an icon, in bars and the composer */
.icon-btn { width: 34px; height: 34px; border-radius: 9px; border: 1px solid var(--line); background: transparent; display: grid; place-items: center; }
.icon-btn:hover { background: var(--bubble); }
.icon-btn[aria-expanded="true"] { background: var(--bubble); }
.icon-btn[disabled] { opacity: .35; cursor: default; }
.icon-btn[disabled]:hover { background: transparent; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-size: 13px; color: var(--muted); }
.input {
  border: 1px solid var(--line); background: var(--panel); border-radius: 10px; padding: 10px 12px; width: 100%;
}
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--focus); }
.hint { font-size: 13px; color: var(--muted); }
.error { color: var(--danger); font-size: 14px; min-height: 1.2em; }
.check { display: flex; gap: 10px; align-items: flex-start; margin: 10px 0 16px; font-size: 14px; }
.check input { margin-top: 3px; accent-color: var(--accent); }

/* segmented choices: sign-in tabs, theme, retention */
.tabs { display: flex; gap: 4px; background: var(--sidebar); padding: 4px; border-radius: 10px; margin-bottom: 18px; }
.tabs button { flex: 1; border: 0; background: transparent; padding: 7px; border-radius: 8px; color: var(--muted); }
.tabs button.on { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }
.seg, .theme { display: flex; gap: 4px; background: var(--sidebar); padding: 4px; border-radius: 10px; }
.seg button, .theme button { flex: 1; border: 0; background: transparent; padding: 6px 8px; border-radius: 8px; color: var(--muted); font-size: 14px; }
.seg button.on, .theme button.on { background: var(--panel); color: var(--text); box-shadow: var(--shadow); }

.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.chip { border: 1px solid var(--line); border-radius: 999px; padding: 3px 10px; background: var(--bg); font-size: 13px; }
.badge { font-size: 11px; padding: 1px 7px; border-radius: 999px; background: var(--accent); color: var(--accent-text); }
.badge.muted { background: var(--line); color: var(--muted); }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--accent); color: var(--accent-text); display: grid; place-items: center; font-weight: 600; flex: none; }
.avatar.small { width: 28px; height: 28px; font-size: 13px; background: var(--line); color: var(--muted); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: var(--faint); }
.dot.on { background: var(--ok); }
.code { font: 600 22px/1.4 var(--mono); letter-spacing: 1px; text-align: center; padding: 16px; background: var(--bg); border-radius: 10px; margin: 14px 0; }

/* ── sign-in: login, register, recovery card, linking, paper key ──────────────────────────────────────────────── */

.center { height: 100%; overflow-y: auto; display: grid; place-items: center; padding: 24px; }
.auth { width: min(420px, 100%); }
.brand { font-family: var(--serif); font-weight: 400; line-height: 1.15; font-size: 40px; letter-spacing: -.5px; margin: 0 0 4px; display: flex; align-items: center; gap: 12px; }
.brand img { width: 36px; height: 36px; }
.accounts { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
pre.cardtext {
  font: 13px/1.5 var(--mono); background: var(--bg); border: 1px dashed var(--line); border-radius: 10px;
  padding: 14px; white-space: pre-wrap; word-break: break-all; margin: 12px 0;
}
.auth-foot { display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 16px; }
.auth-foot .theme, .auth-foot .lang { width: 240px; }
.auth .card > .link { display: block; margin: 14px auto 0; }
.auth .about { margin-top: 18px; }
.recover { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--line); }
.recover[hidden] { display: none; }
.recover ol { padding-left: 20px; margin: 8px 0 14px; }
.recover li { margin: 6px 0; }
.recover li a { display: inline-block; margin-top: 4px; color: var(--accent); }
form.paper { margin: 0 0 14px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
form.paper input { font-family: var(--mono); text-transform: uppercase; }
pre.paperkey { font-size: 16px; text-align: center; letter-spacing: .5px; word-break: normal; }
.paperbox { margin-top: 16px; padding-top: 12px; border-top: 1px solid var(--line); }
.paperbox h3 { font-size: 15px; margin: 0 0 6px; }
@media print {
  body:has(dialog.printable[open]) > :not(dialog.printable) { display: none; }
  dialog.printable { position: static; border: 0; box-shadow: none; width: auto; }
  dialog.printable button, dialog.printable label, dialog.printable .actions { display: none; }
}

/* ── the app's layout: sidebar, main column, top bar ──────────────────────────────────────────────────────────── */

.shell { display: grid; grid-template-columns: 280px 1fr; height: 100%; }
.sidebar { background: var(--sidebar); border-right: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }
.side-top { padding: 12px 12px 6px; display: flex; align-items: center; justify-content: space-between; }
.side-top .logo { font-family: var(--serif); font-size: 22px; display: flex; gap: 8px; align-items: center; padding-left: 6px; }
.side-top .logo img { width: 22px; height: 22px; }
.side-actions { display: flex; gap: 6px; align-items: center; }
.icon-btn.bell-off { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 40%, transparent); }
.icon-btn[hidden] { display: none; }
.side-list { overflow-y: auto; padding: 0 8px 12px; flex: 1; }
.search-btn[aria-expanded="true"] { color: var(--accent); }
.side-search { padding: 4px 12px 2px; }
.side-search .input { padding: 7px 11px; border-radius: 9px; }
.conv.hit { align-items: flex-start; }
.hit-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.hit-top { display: flex; align-items: baseline; gap: 8px; }
.hit-top time { font-size: 11px; color: var(--faint); white-space: nowrap; }
.snippet { font-size: 13px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.snippet mark { background: var(--focus); color: var(--text); border-radius: 3px; padding: 0 1px; }
.snippet .you { color: var(--faint); }
.search-none, .search-more { padding: 6px 10px; margin: 0; }
.side-head { font-size: 12px; color: var(--faint); padding: 14px 10px 6px; }
.conv { width: 100%; text-align: left; border: 0; background: transparent; border-radius: 9px; padding: 8px 10px; display: flex; align-items: center; gap: 10px; color: var(--text); }
.conv:hover { background: var(--bubble); }
.conv.on { background: var(--bubble); }
.conv .name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conv .tag { color: var(--faint); }
.unread { width: 9px; height: 9px; border-radius: 50%; background: var(--accent); flex: none; }
.empty { padding: 4px 10px; display: flex; flex-direction: column; gap: 10px; align-items: flex-start; }
.empty p { margin: 0; }
.empty .about { padding: 6px 0 0; }
/* beside the new-conversation form, which says the same; the list is the whole start page only on a phone */
@media (min-width: 761px) { .empty .about { display: none; } }
.side-foot { border-top: 1px solid var(--line); padding: 10px 12px calc(10px + env(safe-area-inset-bottom, 0px)); display: flex; align-items: center; gap: 8px; }
.me { flex: 1; min-width: 0; }
.me .h { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 14px; cursor: copy; }
.me .s { font-size: 12px; color: var(--muted); display: flex; align-items: center; gap: 6px; }

.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; padding-bottom: env(safe-area-inset-bottom, 0px); }
.topbar { display: flex; align-items: center; gap: 10px; padding: 12px 20px; min-height: 56px; }
.topbar .title { font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topbar h1.title { font-size: inherit; line-height: inherit; margin: 0; }
.topbar .title .tag { color: var(--faint); font-weight: 400; }
.topbar .title .home { color: var(--faint); font-weight: 400; font-size: 13px; }
.icon-btn.back-btn { display: none; }
.banner { margin: 0 auto 8px; width: min(768px, calc(100% - 32px)); border-radius: 10px; padding: 10px 14px; font-size: 14px; background: var(--bubble); }
.banner.warn { background: #b3261e1a; color: var(--danger); }

/* ── the thread ───────────────────────────────────────────────────────────────────────────────────────────────── */

.scroll { flex: 1; overflow-y: auto; }
.thread { width: min(768px, calc(100% - 32px)); margin: 0 auto; padding: 12px 0 24px; display: flex; flex-direction: column; gap: 6px; }
.day { align-self: center; font-size: 12px; color: var(--faint); }

/* a message: received ones in a bubble on the left, sent ones in a tinted bubble on the right */
.msg { position: relative; max-width: 85%; white-space: pre-wrap; overflow-wrap: anywhere; }
.msg.in { align-self: flex-start; background: var(--panel); box-shadow: inset 0 0 0 1px var(--line); padding: 6px 10px 7px; border-radius: 14px 14px 14px 4px; }
.msg.in + .msg.out, .msg.out + .msg.in { margin-top: 4px; } /* extra breathing room when the sender changes */
.msg .body, .msg .fn { unicode-bidi: isolate; } /* text from others cannot reorder what is around it */
.msg.out { align-self: flex-end; background: var(--bubble); padding: 6px 10px 7px; border-radius: 14px 14px 4px 14px; }
.msg.found { outline: 2px solid transparent; outline-offset: 4px; border-radius: 14px; animation: found 2.5s ease-out; }
@keyframes found { 0%, 40% { outline-color: var(--accent); } 100% { outline-color: transparent; } }
@media (prefers-reduced-motion: reduce) { .msg.found { animation: none; outline-color: var(--accent); } }
.msg.media { background: transparent; box-shadow: none; padding: 0; }
.msg .body.jumbo { font-size: 40px; line-height: 1.2; }
.msg:has(.body.jumbo) { background: transparent; box-shadow: none; padding: 0; }
.msg.retracted .body { font-style: italic; color: var(--muted); }

/* the time and what goes with it */
.msg .meta { font-size: 11px; line-height: 16px; color: var(--faint); white-space: nowrap; }
/* WhatsApp-style: the time floats at the end of the text's last line, or drops to its own line when that line is full */
.msg .body:not(.jumbo) { display: inline; }
.msg > .body:not(.jumbo) + .meta { float: right; margin: 7px 0 -5px 10px; }
.msg > .body.jumbo + .meta { text-align: right; }
.msg .meta .pending { color: var(--danger); }
.msg .meta .sending { color: var(--muted); }
.msg .meta .delivery { display: inline-flex; vertical-align: -3px; margin-left: 4px; color: var(--muted); }
.msg .meta .delivery.ok { color: var(--ok); }
.msg .meta .edited { color: var(--faint); }

/* pictures and files */
.msg .frame { position: relative; }
/* On a picture: a dark pill in its bottom corner. Picture and pill share one grid cell, so a picture narrower than
   the pill widens the frame instead of the pill sticking out of the thread. */
.msg .frame:has(> img.inline) { display: grid; }
.msg .frame > img.inline { grid-area: 1 / 1; justify-self: start; }
.msg.out .frame > img.inline { justify-self: end; }
.msg .frame:has(> img.inline) > .meta {
  grid-area: 1 / 1; align-self: end; justify-self: end; margin: 6px; padding: 1px 6px; border-radius: 999px;
  background: #000000a0; color: #fff; white-space: nowrap;
  /* centred as a row: the icons' baseline offsets would otherwise leave the text sitting high in the pill */
  display: flex; align-items: center;
}
.msg .frame:has(> img.inline) > .meta svg { display: block; }
.msg .frame:has(> img.inline) > .meta :is(.delivery, .delivery.ok, .react-btn, .undo-btn, .save-gif-inline, .save-gif-inline.saved, .edited) { color: #fff; }
.msg .frame:not(:has(> img.inline)) > .meta { margin-top: 3px; text-align: right; }
.msg.in .frame:not(:has(> img.inline)) > .meta { text-align: left; }
/* a tiny picture gets a frame big enough to tap, and sits in it at its own size; a long thin one keeps its shape */
.msg img.inline { display: block; max-width: min(420px, 100%); max-height: 420px; min-width: 120px; min-height: 60px; object-fit: scale-down; border-radius: 12px; border: 1px solid var(--line); cursor: zoom-in; }
.filecard { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; background: var(--panel); white-space: normal; }
.filecard .ico { width: 36px; height: 36px; border-radius: 8px; background: var(--bubble); display: grid; place-items: center; font-size: 12px; color: var(--muted); flex: none; }
.filecard .ico.play { border: 0; padding: 0; color: var(--accent); cursor: pointer; }
.filecard .ico.play:disabled { opacity: 0.5; cursor: progress; }
.filecard .fi { flex: 1; min-width: 0; }
.videobox { display: flex; flex-direction: column; gap: 6px; max-width: min(480px, 100%); }
.videobox video.inline { display: block; width: 100%; max-height: 420px; border-radius: 12px; background: #000; }
.filecard .fn { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.filecard .fs { font-size: 12px; color: var(--muted); }
.save-gif-inline { border: 0; background: transparent; color: var(--accent); font-size: 11px; padding: 0 2px; margin-left: 8px; text-decoration: underline; }
.save-gif-inline.saved { color: var(--ok); text-decoration: none; cursor: default; }

/* the quiet buttons by the time: react, more, undo */
.react-btn { border: 0; background: transparent; color: var(--faint); padding: 0 2px; margin-left: 4px; vertical-align: -4px; border-radius: 6px; opacity: 0; }
.react-btn svg { width: 16px; height: 16px; }
.msg:hover .react-btn, .react-btn:focus-visible, .react-btn[aria-expanded="true"] { opacity: 1; }
.react-btn:hover { color: var(--text); }
.more-btn { margin-left: 2px; }
.undo-btn { border: 0; background: transparent; color: var(--accent); padding: 0 2px; margin-left: 6px; vertical-align: -4px; border-radius: 6px; }
.undo-btn svg { width: 16px; height: 16px; }
.undo-btn:hover { color: var(--text); }
@media (hover: none) {
  .undo-btn { padding: 2px 4px; }
  .undo-btn svg { width: 18px; height: 18px; }
  .react-btn { opacity: .75; padding: 0 3px; }
  .react-btn svg { width: 16px; height: 16px; }
}

/* reactions: chips under a message and a row of quick choices */
.msg .reactions { clear: both; }
.reactions { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 4px; white-space: normal; }
.msg.out .reactions { justify-content: flex-end; }
.reaction { display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); background: var(--panel); border-radius: 999px; padding: 1px 8px; font-size: 15px; line-height: 22px; }
.reaction .n { font-size: 12px; color: var(--muted); }
.reaction.mine { border-color: color-mix(in srgb, var(--accent) 55%, var(--line)); background: color-mix(in srgb, var(--accent) 12%, var(--panel)); }
.reaction[disabled] { cursor: default; }
.react-menu {
  position: absolute; bottom: calc(100% + 4px); z-index: 5; display: flex; gap: 2px; padding: 4px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 999px; box-shadow: var(--shadow); white-space: nowrap;
}
.msg.in .react-menu { left: 0; }
.msg.out .react-menu { right: 0; }
.react-menu button { border: 0; background: transparent; width: 36px; height: 36px; border-radius: 50%; font-size: 21px; padding: 0; display: grid; place-items: center; color: var(--muted); }
.react-menu button:hover, .react-menu button:focus-visible, .react-menu button.on { background: var(--bubble); }

/* disappearing messages: the countdown and the fade at the end */
.msg .meta .fuse-wrap { display: inline-flex; align-items: center; gap: 3px; margin-left: 6px; vertical-align: -2px; line-height: 1; color: var(--accent); font-variant-numeric: tabular-nums; }
.msg .meta .fuse-wrap.waiting { color: var(--faint); }
.msg .meta .fuse-wrap svg { flex: none; }
.msg.ephemeral { box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent); }
/* The last 3 s (DISSOLVE in app.js): fade and blur away, then the row folds so the thread closes up. */
.msg.dissolve { overflow: hidden; animation: dissolve 3s ease-in forwards; pointer-events: none; }
@keyframes dissolve {
  0% { opacity: 1; filter: blur(0); max-height: var(--h); }
  75% { opacity: 0; filter: blur(5px); transform: scale(.97); max-height: var(--h); margin-block: 0; }
  100% { opacity: 0; filter: blur(5px); transform: scale(.97); max-height: 0; padding-block: 0; margin-block: -7px; } /* half the thread gap on each side */
}
@media (prefers-reduced-motion: reduce) {
  .msg.dissolve { animation-name: dissolve-plain; }
  @keyframes dissolve-plain { 0% { opacity: 1; max-height: var(--h); } 85% { opacity: 0; max-height: var(--h); } 100% { opacity: 0; max-height: 0; padding-block: 0; margin-block: -7px; } }
}

/* a message request, above the composer's place */
.request-box { width: min(768px, calc(100% - 32px)); margin: 8px auto 18px; border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; background: var(--panel); }
.request-box .actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

/* ── the composer: one rounded box, like a prompt field ───────────────────────────────────────────────────────── */

.composer-wrap { position: relative; padding: 0 16px 18px; }
.composer {
  position: relative; text-align: left;
  width: min(768px, 100%); margin: 0 auto; background: var(--panel); border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow); padding: 10px 10px 8px 16px;
}
.composer:focus-within { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.composer.ephemeral, .composer.ephemeral:focus-within { border-color: color-mix(in srgb, var(--accent) 70%, var(--line)); }
.composer textarea { width: 100%; border: 0; outline: none; resize: none; background: transparent; max-height: 240px; padding: 6px 0; display: block; }
.composer .row { display: flex; align-items: center; gap: 8px; }
.composer .row .grow { flex: 1; font-size: 12px; color: var(--faint); }
.icon-btn.gif-btn { font: 600 11px/1 var(--sans); letter-spacing: .02em; color: var(--muted); }
.send { width: 34px; height: 34px; border-radius: 9px; border: 0; background: var(--accent); color: var(--accent-text); display: grid; place-items: center; }
.send[disabled] { opacity: .4; cursor: default; }
.foot-note { text-align: center; font-size: 12px; color: var(--faint); margin-top: 8px; }

/* the timer for disappearing messages, and its menu */
.icon-btn.timer-btn { width: auto; min-width: 34px; padding: 0 8px; grid-auto-flow: column; gap: 4px; color: var(--muted); }
.icon-btn.timer-btn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.icon-btn.timer-btn.on:hover { background: var(--accent-hover); }
.icon-btn.timer-btn .ttl { font: 600 12px/1 var(--sans); }
.timer-menu {
  position: absolute; bottom: calc(100% + 6px); right: 52px; z-index: 5; display: grid; gap: 6px; padding: 8px 10px 10px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px; box-shadow: var(--shadow);
}
.timer-menu .choices { display: flex; gap: 4px; }
.timer-menu .choices button {
  border: 1px solid var(--line); background: transparent; border-radius: 999px; padding: 5px 11px; font-size: 13px; color: var(--text); white-space: nowrap;
}
.timer-menu .choices button:hover, .timer-menu .choices button:focus-visible { background: var(--bubble); }
.timer-menu .choices button.on { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

/* files on their way: one row each above the composer */
.uploads { width: min(768px, 100%); margin: 0 auto; display: flex; flex-direction: column; gap: 6px; }
.uploads:not(:empty) { margin-bottom: 8px; }
.upload {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; column-gap: 10px; row-gap: 6px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 8px 12px; font-size: 13px; box-shadow: var(--shadow);
}
.upload:not(:has(progress)) { grid-template-columns: auto minmax(0, 1fr) auto auto; }
.upload .name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload .state { color: var(--muted); font-size: 12px; white-space: nowrap; min-width: 0; overflow: hidden; text-overflow: ellipsis; }
.upload progress { grid-column: 1 / -1; width: 100%; height: 4px; appearance: none; border: 0; border-radius: 2px; background: var(--line); overflow: hidden; accent-color: var(--accent); }
.upload progress::-webkit-progress-bar { background: var(--line); }
.upload progress::-webkit-progress-value { background: var(--accent); transition: width .2s; }
.upload progress::-moz-progress-bar { background: var(--accent); }
.upload .note { grid-column: 1 / -1; color: var(--muted); font-size: 12px; }
.upload .mark { width: 16px; text-align: center; font-weight: 700; }
.upload.ok .mark { color: var(--ok); }
.upload.wait .mark { color: var(--muted); }
.upload.fail { border-color: color-mix(in srgb, var(--danger) 50%, var(--line)); }
.upload.fail .mark, .upload.fail .state { color: var(--danger); }
.upload.fail .state, .upload.wait .state { white-space: normal; }
.upload .close-up { border: 0; background: none; padding: 2px; color: var(--muted); display: grid; place-items: center; }
.upload .close-up svg { width: 14px; height: 14px; }

/* the emoji and GIF panel above the composer; as tall as the window allows next to the bar and the composer, also
   with the phone's keyboard up */
.picker {
  width: min(768px, 100%); margin: 0 auto 8px; background: var(--panel); border: 1px solid var(--line);
  border-radius: 16px; box-shadow: var(--shadow); padding: 10px 12px;
  max-height: min(460px, calc(100dvh - 210px)); min-height: min(240px, calc(100dvh - 210px));
  display: flex; flex-direction: column; gap: 6px;
}
.picker.in-dialog { box-shadow: none; border: 0; padding: 0; margin: 0; width: 100%; max-height: min(380px, 60dvh); }
.picker-head { display: flex; align-items: center; gap: 8px; justify-content: space-between; }
.picker-title { font-size: 12px; color: var(--muted); }
.picker .hint { margin: 0; }
.picker-head .hint { font-size: 12px; }
.picker-tabs { display: flex; gap: 2px; overflow-x: auto; flex: none; border-bottom: 1px solid var(--line); padding-bottom: 6px; }
.picker-tabs button { border: 0; background: transparent; border-radius: 8px; min-width: 34px; height: 32px; font-size: 18px; display: grid; place-items: center; color: var(--muted); }
.picker-tabs button.on, .picker-tabs button:hover { background: var(--bubble); }
.emoji-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(38px, 1fr)); overflow-y: auto; min-height: 0; }
.emoji-grid .emoji { border: 0; background: transparent; border-radius: 8px; height: 38px; font-size: 24px; line-height: 1; padding: 0; }
.emoji-grid .emoji:hover, .emoji-grid .emoji:focus-visible { background: var(--bubble); }

/* GIFs: tabs, the GIPHY note, results */
.gif-tabs { flex: none; }
.gif-body { display: flex; flex-direction: column; gap: 8px; min-height: 0; flex: 1; }
.gif-body .input { flex: none; }
.warn-note { flex: none; font-size: 12px; line-height: 1.45; padding: 6px 10px; border-radius: 10px; background: color-mix(in srgb, #c98a00 14%, var(--panel)); border: 1px solid color-mix(in srgb, #c98a00 35%, var(--line)); color: var(--text); }
.warn-note summary { cursor: pointer; }
.warn-note p { margin: 6px 0 2px; }
.gif-status { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; flex: none; font-size: 12px; }
.gif-status .hint { margin: 0; font-size: 12px; }
.giphy-mark { color: var(--faint); font-size: 11px; white-space: nowrap; }
/* rows sized by their tiles: a tile with overflow hidden may otherwise shrink to nothing and overlap the next */
.gif-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(84px, 1fr)); grid-auto-rows: max-content; align-content: start; gap: 6px; overflow-y: auto; min-height: 0; flex: 1; }
.gif-grid .hint { grid-column: 1 / -1; }
.gif { position: relative; }
.gif-send { position: relative; display: block; width: 100%; aspect-ratio: 1; padding: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bubble); }
.gif-send img { width: 100%; height: 100%; object-fit: cover; display: block; }
.gif-send.wait { display: grid; place-items: center; font-size: 12px; color: var(--muted); }
.gif-send.busy { opacity: .5; cursor: progress; }
.gif-ok { display: none; position: absolute; right: 6px; bottom: 6px; width: 22px; height: 22px; border-radius: 50%; background: var(--ok); color: #fff; font-size: 13px; line-height: 22px; text-align: center; }
.gif-send.saved .gif-ok { display: block; }
.gif-remove { position: absolute; top: 4px; right: 4px; width: 24px; height: 24px; border-radius: 50%; border: 0; background: #000000a0; color: #fff; display: grid; place-items: center; padding: 0; opacity: 0; }
.gif:hover .gif-remove, .gif-remove:focus-visible { opacity: 1; }
@media (hover: none) { .gif-remove { opacity: 1; } }
.gif-remove svg { width: 14px; height: 14px; }

/* ── start of a conversation: the new-conversation form and the cards beside it ──────────────────────────────── */

.welcome { flex: 1; overflow-y: auto; padding: 8px 16px 24px; }
.welcome-inner { width: min(460px, 100%); margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.newconv p { margin: 0 0 16px; }
.newconv .btn { width: 100%; }
.card.mine, .card.offer { display: flex; align-items: center; gap: 10px; padding: 14px 16px; box-shadow: none; }
.card.mine > div, .card.offer > div { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.card.offer { flex-wrap: wrap; }
.card.offer > div:first-child { flex: 1 1 240px; } /* the text keeps room to read; the buttons go under it instead */
.card.offer > div.btns { flex: 0 0 auto; display: flex; gap: 6px; flex-wrap: wrap; justify-content: flex-end; margin-left: auto; }
.lone { font-size: 13px; padding: 10px 12px; border-radius: 10px; background: var(--bubble); }

/* ── dialogs and toasts ───────────────────────────────────────────────────────────────────────────────────────── */

dialog { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); color: var(--text); padding: 22px; width: min(460px, calc(100% - 32px)); box-shadow: var(--shadow); }
dialog::backdrop { background: #0000004d; }
dialog h2 { font-family: var(--serif); font-weight: 400; margin: 0 0 10px; font-size: 24px; }
dialog .actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 8px; margin-top: 18px; }
/* buttons keep their label on one line and move to a new row instead */
dialog .actions > * { flex-shrink: 0; max-width: 100%; }
dialog.wide { width: min(640px, calc(100% - 24px)); max-height: calc(100dvh - 32px); }
.dev { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.dev:last-child { border-bottom: 0; }
.dev .l { flex: 1; }
.dev .seen { font-size: 13px; color: var(--muted); }
.dev .id { font: 12px var(--mono); color: var(--faint); }
.help h3 { font-size: 15px; margin: 16px 0 6px; }
.help ul, .about ul { margin: 0; padding-left: 18px; }
.help li { margin: 4px 0; font-size: 14px; }
.version { margin-top: 16px; font-variant-numeric: tabular-nums; }
.version a { color: inherit; }
.about { font-size: 13px; color: var(--muted); padding: 4px 4px 0; }
.about li { margin: 3px 0; }
.about .link { margin-top: 8px; font-size: 13px; }

/* a picture shown large */
dialog.viewer { width: fit-content; max-width: 95vw; padding: 0; border: 0; background: transparent; box-shadow: none; overflow: visible; cursor: zoom-out; }
dialog.viewer::backdrop { background: #000000b3; }
dialog.viewer img { max-width: 92vw; max-height: 86dvh; display: block; border-radius: 10px; }
dialog.viewer .save-gif { display: block; margin: 10px auto 0; cursor: pointer; }
dialog.viewer .close {
  position: fixed; top: max(12px, env(safe-area-inset-top)); right: 12px; width: 44px; height: 44px; border-radius: 50%;
  border: 0; background: #000000a6; color: #fff; display: grid; place-items: center; z-index: 1;
}
dialog.viewer .close svg { width: 22px; height: 22px; }

.update {
  position: fixed; top: calc(10px + env(safe-area-inset-top, 0px)); left: 50%; transform: translateX(-50%); z-index: 11;
  width: max-content; max-width: calc(100% - 24px); display: flex; align-items: center; flex-wrap: wrap; gap: 8px;
  background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 8px 10px 8px 14px;
  font-size: 14px; box-shadow: var(--shadow);
}
.toasts { pointer-events: none; position: fixed; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: 8px; z-index: 10; }
.toast { background: var(--text); color: var(--bg); padding: 9px 14px; border-radius: 10px; font-size: 14px; box-shadow: var(--shadow); }

/* ── narrow screens ───────────────────────────────────────────────────────────────────────────────────────────── */

/* The list of conversations is the start page; an open conversation covers it. */
@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { border-right: 0; }
  .shell:not(.chat) .main, .shell.chat .sidebar { display: none; }
  .icon-btn.back-btn { display: grid; }
  .topbar { padding: 10px 12px; }
  .topbar .wide { display: none; }
  .conv { padding: 12px 10px; font-size: 16px; }
  .avatar.small { width: 36px; height: 36px; font-size: 15px; }
  .input, .composer textarea { font-size: 16px; } /* no zoom on focus in iOS */
  .timer-menu { right: 0; left: 0; }
  .timer-menu .choices { flex-wrap: wrap; }
}

/* The panel above the composer gets the room the note under it would take. */
@media (max-width: 640px) {
  .composer-wrap:has(.picker:not(.hidden)) .foot-note { display: none; }
  .composer-wrap:has(.picker:not(.hidden)) { padding-bottom: 8px; }
  .picker { padding: 8px; gap: 6px; max-height: min(60dvh + 60px, calc(100dvh - 180px)); min-height: min(220px, calc(100dvh - 180px)); }
  .gif-tabs button { padding: 5px 8px; font-size: 13px; }
}

/* ── start page: the product page around the login card (index.html) ─────────────────────────────────────────── */

body.in-app .site-head, body.in-app .site-foot, body.in-app #top > section:not(.hero), body.in-app .hero-text { display: none; }
body.in-app #top, body.in-app .hero, body.in-app .hero-app { display: block; height: 100%; margin: 0; padding: 0; max-width: none; }

.landing { scroll-behavior: smooth; }
.landing a { color: var(--accent); }
.landing a.btn { color: var(--text); text-decoration: none; }
.site-head {
  position: sticky; top: 0; z-index: 5; display: flex; align-items: center; gap: 24px;
  padding: 12px max(24px, calc((100% - 1120px) / 2)); background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line);
}
.site-head .logo { display: flex; align-items: center; gap: 9px; font: 22px var(--serif); color: var(--text); text-decoration: none; }
.site-head nav { display: flex; gap: 20px; margin-left: auto; }
.site-head nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
.site-head nav a:hover { color: var(--text); }
.landing main > section { max-width: 1120px; margin: 0 auto; padding: 72px 24px; scroll-margin-top: 64px; }
.landing main > section.band { max-width: none; background: var(--sidebar); padding-left: max(24px, calc((100% - 1072px) / 2)); padding-right: max(24px, calc((100% - 1072px) / 2)); }
.hero { display: grid; grid-template-columns: 1fr minmax(320px, 420px); gap: 56px; align-items: start; }
.landing main > section.hero { padding-top: 56px; }
.eyebrow { margin: 0 0 10px; color: var(--accent); font-weight: 600; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; }
.hero-text h1 { font: 46px/1.12 var(--serif); letter-spacing: -.8px; margin: 0 0 18px; }
.lead { font-size: 18px; color: var(--muted); margin: 0 0 22px; max-width: 34em; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
.checks li { position: relative; padding-left: 30px; }
.checks li::before {
  content: ""; position: absolute; left: 0; top: 3px; width: 19px; height: 19px; border-radius: 50%;
  background: var(--accent) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath d='M5.5 10.5l3 3 6-7' fill='none' stroke='white' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 15px no-repeat;
}
.hero-app { scroll-margin-top: 80px; min-height: 420px; }
.landing h2 { font: 32px/1.2 var(--serif); letter-spacing: -.4px; margin: 0 0 14px; }
.landing h3 { font-size: 16px; margin: 0 0 6px; }
.landing main p { margin: 0 0 12px; }
.section-lead { color: var(--muted); max-width: 40em; margin-bottom: 28px !important; }
.steps { list-style: none; counter-reset: step; padding: 0; margin: 28px 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.steps li { counter-increment: step; }
.steps li::before {
  content: counter(step); display: grid; place-items: center; width: 34px; height: 34px; margin-bottom: 12px;
  border-radius: 50%; background: var(--accent); color: var(--accent-text); font-weight: 600;
}
.steps p, .grid p, .faq p { color: var(--muted); }
.landing code { font: 14px var(--mono); background: var(--bubble); padding: 1px 6px; border-radius: 6px; }
.grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.grid article { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
.split ul { padding-left: 20px; margin: 0; display: grid; gap: 6px; color: var(--muted); }
.facts { list-style: none; padding: 20px !important; background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); gap: 12px !important; }
.facts strong { color: var(--text); }
.faq { display: grid; gap: 10px; max-width: 800px; }
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 18px; }
.faq summary { cursor: pointer; font-weight: 600; }
.faq details[open] summary { margin-bottom: 8px; }
.site-foot { border-top: 1px solid var(--line); padding: 28px 24px 40px; text-align: center; color: var(--muted); font-size: 14px; }
.site-foot p { margin: 4px 0; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; gap: 32px; }
  .landing main > section.hero { padding-top: 32px; }
  .hero-text h1 { font-size: 36px; }
  .steps, .grid, .split { grid-template-columns: 1fr; }
  .site-head nav { display: none; }
  .site-head .btn { margin-left: auto; }
  .landing main > section { padding-top: 48px; padding-bottom: 48px; }
}