/* Grayscale only. No brand colours, no decorative images. Mobile first. */
:root {
  --bg: #ffffff;
  --surface: #f4f4f4;
  --surface-2: #e9e9e9;
  --line: #d0d0d0;
  --text: #111111;
  --muted: #5c5c5c;
  --inverse: #ffffff;
  --strong: #111111;
  --focus: #000000;
  --radius: 12px;
  --nav-h: 64px;
  --tap: 52px;
  font-size: 17px;
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Arial, "Noto Sans Hebrew", sans-serif;
  line-height: 1.5;
  -webkit-text-size-adjust: 100%;
}
a { color: inherit; }
img, video { max-width: 100%; display: block; }
h1 { font-size: 1.5rem; margin: 0 0 .75rem; }
h2 { font-size: 1.2rem; margin: 1.25rem 0 .5rem; }
h3 { font-size: 1.05rem; margin: 1rem 0 .4rem; }
p { margin: .4rem 0; }
.muted { color: var(--muted); }
.small { font-size: .88rem; }
.center { text-align: center; }
.row { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; }
.row.between { justify-content: space-between; }
.stack > * + * { margin-top: .75rem; }
.hidden { display: none !important; }

/* Layout */
.topbar {
  position: sticky; top: 0; z-index: 20; background: var(--bg);
  border-bottom: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
  padding: .5rem 16px; min-height: 56px;
}
.topbar .title { font-weight: 700; font-size: 1.1rem; }
main.page { max-width: 720px; margin: 0 auto; padding: 16px 16px calc(var(--nav-h) + 32px); }
main.page.wide { max-width: 980px; }
.banner { background: var(--surface-2); border: 1px solid var(--line); border-radius: var(--radius); padding: .75rem 1rem; margin-bottom: 1rem; }
.banner.strong { background: var(--strong); color: var(--inverse); border-color: var(--strong); }

/* Bottom navigation (RTL: first item is rightmost) */
nav.bottom {
  position: fixed; bottom: 0; inset-inline: 0; z-index: 30; height: calc(var(--nav-h) + env(safe-area-inset-bottom));
  padding-bottom: env(safe-area-inset-bottom);
  background: var(--bg); border-top: 1px solid var(--line);
  display: grid; grid-template-columns: repeat(5, 1fr);
}
nav.bottom a {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  text-decoration: none; color: var(--muted); font-size: .78rem; position: relative;
}
nav.bottom a svg { width: 26px; height: 26px; }
nav.bottom a.active { color: var(--text); font-weight: 700; }
nav.bottom a.active::before { content: ""; position: absolute; top: 0; inset-inline: 22%; height: 3px; background: var(--text); border-radius: 0 0 3px 3px; }
nav.bottom a.upload svg { width: 34px; height: 34px; }
.badge {
  position: absolute; top: 6px; inset-inline-start: calc(50% + 6px);
  min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px;
  background: var(--strong); color: var(--inverse); font-size: .72rem; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}
.icon-btn { position: relative; background: none; border: 0; padding: 8px; min-width: 44px; min-height: 44px; cursor: pointer; color: var(--text); }
.icon-btn svg { width: 26px; height: 26px; }
.icon-btn .badge { top: 2px; inset-inline-start: 26px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  min-height: var(--tap); padding: 0 1.25rem; border-radius: var(--radius);
  font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  border: 2px solid var(--strong); background: var(--strong); color: var(--inverse);
}
.btn.secondary { background: var(--bg); color: var(--text); }
.btn.ghost { background: transparent; color: var(--text); border-color: transparent; text-decoration: underline; padding: 0 .5rem; }
.btn.block { width: 100%; }
.btn.small { min-height: 40px; padding: 0 .9rem; font-size: .92rem; }
.btn[disabled], .btn.disabled { opacity: .45; cursor: not-allowed; }
.btn:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 3px solid var(--focus); outline-offset: 2px;
}
.btn-row { display: flex; gap: .6rem; flex-wrap: wrap; }
.btn-row > .btn { flex: 1 1 160px; }

/* Forms */
label, .label { display: block; font-weight: 600; margin-bottom: .3rem; }
.field { margin-bottom: 1rem; }
.hint { color: var(--muted); font-size: .88rem; margin-top: .25rem; }
.error-text { font-weight: 700; font-size: .9rem; margin-top: .25rem; }
.error-text::before { content: "⚠ "; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=number], input[type=search], select, textarea {
  width: 100%; min-height: var(--tap); padding: .6rem .8rem; font: inherit; color: var(--text);
  background: var(--bg); border: 2px solid var(--line); border-radius: var(--radius);
}
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus { border-color: var(--strong); }
input[aria-invalid=true], textarea[aria-invalid=true] { border-color: var(--strong); border-style: dashed; }
label.btn { margin-bottom: 0; }
.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; border: 0 !important; overflow: hidden !important; clip: rect(0 0 0 0) !important; white-space: nowrap !important; inset-inline-start: 0; }
.file-pick { position: relative; }
.file-pick { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; padding: .75rem; border: 2px dashed var(--line); border-radius: var(--radius); background: var(--surface); }
.file-pick:focus-within { border-color: var(--strong); }
input[type=file] { font: inherit; width: 100%; padding: .75rem; border: 2px dashed var(--line); border-radius: var(--radius); background: var(--surface); }

.choices { display: grid; gap: .5rem; }
.choice {
  display: flex; gap: .75rem; align-items: flex-start; padding: .85rem 1rem;
  border: 2px solid var(--line); border-radius: var(--radius); cursor: pointer; background: var(--bg);
}
.choice input { width: 22px; height: 22px; margin: .15rem 0 0; flex: none; accent-color: #111; }
.choice:has(input:checked) { border-color: var(--strong); background: var(--surface); }
.choice.disabled { opacity: .55; cursor: not-allowed; }
.choice .t { font-weight: 700; display: block; }
.choice .d { color: var(--muted); font-size: .9rem; display: block; }
.chips { display: flex; gap: .4rem; flex-wrap: wrap; }
.chip {
  display: inline-flex; align-items: center; gap: .35rem; min-height: 40px; padding: 0 .9rem;
  border: 2px solid var(--line); border-radius: 999px; background: var(--bg); font: inherit; cursor: pointer; color: var(--text);
}
.chip input { position: absolute; opacity: 0; pointer-events: none; }
.chip.on, .chip:has(input:checked) { background: var(--strong); color: var(--inverse); border-color: var(--strong); }
.tag { display: inline-block; padding: .05rem .55rem; border-radius: 6px; border: 1px solid var(--strong); font-size: .78rem; font-weight: 700; }
.tag.fill { background: var(--strong); color: var(--inverse); }
.tag.soft { border-color: var(--line); color: var(--muted); }

/* Cards & lists */
.card { border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; background: var(--bg); }
.card + .card { margin-top: .75rem; }
.card.link { display: block; text-decoration: none; }
.card.unread { border-width: 2px; border-color: var(--strong); }
.list-item { display: flex; gap: .75rem; align-items: center; justify-content: space-between; }
.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--strong); flex: none; }
.meta { color: var(--muted); font-size: .88rem; }
dl.kv { display: grid; grid-template-columns: auto 1fr; gap: .25rem .75rem; margin: .5rem 0; }
dl.kv dt { color: var(--muted); }
dl.kv dd { margin: 0; font-weight: 600; }

/* Tabs */
.tabs { display: flex; border-bottom: 2px solid var(--line); margin: .5rem 0 1rem; overflow-x: auto; }
.tabs button {
  flex: 1 0 auto; min-height: 48px; padding: 0 .9rem; background: none; border: 0; font: inherit; cursor: pointer; color: var(--muted);
  border-bottom: 3px solid transparent; margin-bottom: -2px; white-space: nowrap;
}
.tabs button[aria-selected=true] { color: var(--text); font-weight: 700; border-bottom-color: var(--strong); }

/* Grid of videos */
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .6rem; }
@media (min-width: 640px) { .grid { grid-template-columns: repeat(3, 1fr); } }
.tile {
  display: flex; flex-direction: column; justify-content: flex-end; gap: .2rem; aspect-ratio: 3/4; padding: .6rem;
  border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); text-decoration: none; overflow: hidden; position: relative;
}
.tile .play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-60%); width: 44px; height: 44px; color: var(--muted); }
.tile .t { font-weight: 700; line-height: 1.25; }

/* Video player */
.player { background: #000; border-radius: var(--radius); overflow: hidden; }
.player video { width: 100%; max-height: 70vh; background: #000; }
.player-bar { display: flex; gap: .35rem; flex-wrap: wrap; padding: .5rem; background: var(--surface-2); }
.player-bar button { min-height: 40px; padding: 0 .7rem; font: inherit; font-size: .9rem; border: 2px solid var(--line); background: var(--bg); color: var(--text); border-radius: 8px; cursor: pointer; }
.player-bar button[aria-pressed=true] { background: var(--strong); color: var(--inverse); border-color: var(--strong); }
.player-placeholder { aspect-ratio: 16/9; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: .5rem; color: #ddd; background: #222; padding: 1rem; text-align: center; }
.player-placeholder .btn { background: #fff; color: #111; border-color: #fff; }

/* Feed */
.feed-item { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-bottom: 1rem; }
.feed-item .head, .feed-item .foot { padding: .75rem 1rem; }
.feed-item .foot { border-top: 1px solid var(--line); }

/* Messages */
.thread { display: flex; flex-direction: column; gap: .5rem; }
.msg { max-width: 85%; padding: .6rem .85rem; border-radius: 14px; background: var(--surface); border: 1px solid var(--line); white-space: pre-wrap; }
.msg.mine { align-self: flex-start; background: var(--strong); color: var(--inverse); border-color: var(--strong); }
.msg.theirs { align-self: flex-end; }
.msg .meta { color: inherit; opacity: .75; font-size: .78rem; }
.pre { white-space: pre-wrap; }

/* States */
.boot, .state { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; gap: .5rem; padding: 2.5rem 1rem; color: var(--muted); }
.boot { min-height: 70vh; }
.state.empty { border: 2px dashed var(--line); border-radius: var(--radius); }
.state.error { border: 2px solid var(--strong); border-radius: var(--radius); color: var(--text); }
.state.success { border: 2px solid var(--strong); border-radius: var(--radius); color: var(--text); background: var(--surface); }
.state .big { font-size: 2rem; line-height: 1; }
.spinner { width: 34px; height: 34px; border: 4px solid var(--line); border-top-color: var(--strong); border-radius: 50%; animation: spin .8s linear infinite; }
.spinner.sm { width: 18px; height: 18px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .spinner { animation-duration: 3s; } }
.progress { height: 14px; background: var(--surface-2); border-radius: 7px; overflow: hidden; border: 1px solid var(--line); }
.progress > div { height: 100%; background: var(--strong); width: 0; transition: width .2s; }

/* Toast & modal */
#toast { position: fixed; bottom: calc(var(--nav-h) + 16px + env(safe-area-inset-bottom)); inset-inline: 16px; z-index: 60; display: flex; flex-direction: column; gap: .5rem; align-items: center; pointer-events: none; }
#toast .t { max-width: 560px; width: 100%; background: var(--strong); color: var(--inverse); padding: .85rem 1rem; border-radius: var(--radius); font-weight: 600; box-shadow: 0 4px 18px rgba(0,0,0,.25); pointer-events: auto; }
#toast .t.err { background: var(--bg); color: var(--text); border: 2px solid var(--strong); }
.modal-back { position: fixed; inset: 0; z-index: 70; background: rgba(0,0,0,.55); display: flex; align-items: flex-end; justify-content: center; padding: 16px; }
@media (min-width: 640px) { .modal-back { align-items: center; } }
.modal { background: var(--bg); border-radius: var(--radius); padding: 1.25rem; width: 100%; max-width: 480px; max-height: 90vh; overflow: auto; }
.modal h2 { margin-top: 0; }

/* Recorder */
.rec { border: 2px dashed var(--line); border-radius: var(--radius); padding: 1rem; }
.rec video { width: 100%; max-height: 300px; background: #000; border-radius: 8px; }
.rec-dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; background: var(--strong); animation: blink 1s infinite; vertical-align: middle; }
@keyframes blink { 50% { opacity: .2; } }
.soon { opacity: .6; }

@media (min-width: 900px) {
  :root { font-size: 17.5px; }
  .two-col { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.5rem; align-items: start; }
}