/* ============================================================
   Cigaal Social UI — shared dark design system
   Used by channel/, explore/, m/ screens. Matches index.html
   dark navy + blue→purple gradient + glass card language.
   ============================================================ */

:root {
  --sui-bg: #081120;
  --sui-bg-2: #0b1830;
  --sui-bg-3: #0e2040;
  --sui-surface: rgba(255, 255, 255, 0.045);
  --sui-surface-2: rgba(255, 255, 255, 0.08);
  --sui-surface-3: rgba(255, 255, 255, 0.12);
  --sui-border: rgba(255, 255, 255, 0.09);
  --sui-border-soft: rgba(255, 255, 255, 0.05);
  --sui-text: #eaf0fa;
  --sui-text-2: #9db0ca;
  --sui-text-3: #647893;
  --sui-brand: #4a6bff;
  --sui-brand-2: #a855f7;
  --sui-grad: linear-gradient(135deg, #1a75ff 0%, #751aff 100%);
  --sui-grad-soft: linear-gradient(135deg, rgba(26, 117, 255, 0.18), rgba(117, 26, 255, 0.18));
  --sui-green: #26d07c;
  --sui-red: #ff5c72;
  --sui-amber: #ffb454;
  --sui-r-lg: 18px;
  --sui-r-md: 14px;
  --sui-r-sm: 10px;
  --sui-topbar-h: 64px;
  --sui-font: "Poppins", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --sui-shadow: 0 8px 30px rgba(2, 8, 20, 0.45);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body.sui {
  margin: 0;
  background: var(--sui-bg);
  background-image:
    radial-gradient(1100px 480px at 85% -10%, rgba(117, 26, 255, 0.14), transparent 60%),
    radial-gradient(900px 500px at -10% 10%, rgba(26, 117, 255, 0.12), transparent 55%);
  background-attachment: fixed;
  color: var(--sui-text);
  font-family: var(--sui-font);
  font-size: 14px;
  line-height: 1.55;
  min-height: 100vh;
}
body.sui a { color: inherit; text-decoration: none; }
body.sui img { display: block; max-width: 100%; }
body.sui button { font-family: inherit; cursor: pointer; }
body.sui input, body.sui textarea, body.sui select { font-family: inherit; }
body.sui ::-webkit-scrollbar { width: 8px; height: 8px; }
body.sui ::-webkit-scrollbar-thumb { background: rgba(255,255,255,.12); border-radius: 8px; }
body.sui ::-webkit-scrollbar-track { background: transparent; }

/* ---------- layout ---------- */
.sui-shell { min-height: 100vh; }
.sui-main {
  max-width: 1280px;
  margin: 0 auto;
  padding: 20px 20px 90px;
  display: grid;
  gap: 22px;
  grid-template-columns: 240px minmax(0, 1fr) 300px;
  align-items: start;
}
.sui-main.no-left { grid-template-columns: minmax(0, 1fr) 300px; }
.sui-main.no-right { grid-template-columns: 240px minmax(0, 1fr); }
.sui-main.solo { grid-template-columns: minmax(0, 1fr); max-width: 780px; }
.sui-col { min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.sui-col.sticky { position: sticky; top: calc(var(--sui-topbar-h) + 16px); }

/* ---------- top bar ---------- */
.sui-topbar {
  position: sticky; top: 0; z-index: 50;
  height: var(--sui-topbar-h);
  display: flex; align-items: center; gap: 18px;
  padding: 0 22px;
  background: rgba(8, 17, 32, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--sui-border-soft);
}
.sui-logo {
  display: flex; align-items: center; gap: 10px;
  font-size: 20px; font-weight: 700; letter-spacing: 0.2px;
  background: var(--sui-grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  white-space: nowrap;
}
.sui-logo .mark {
  width: 34px; height: 34px; border-radius: 11px;
  background: var(--sui-grad);
  display: grid; place-items: center;
  color: #fff; font-size: 15px; font-weight: 700;
  box-shadow: 0 4px 14px rgba(74, 107, 255, 0.45);
  -webkit-text-fill-color: #fff;
}
.sui-topnav { display: flex; align-items: center; gap: 4px; }
.sui-topnav a {
  display: flex; align-items: center; gap: 7px;
  padding: 8px 13px; border-radius: 10px;
  color: var(--sui-text-2); font-size: 13.5px; font-weight: 500;
  transition: color .15s, background .15s;
}
.sui-topnav a svg { width: 18px; height: 18px; }
.sui-topnav a:hover { color: var(--sui-text); background: var(--sui-surface-2); }
.sui-topnav a.active { color: #fff; background: var(--sui-grad-soft); box-shadow: inset 0 0 0 1px rgba(122, 92, 255, 0.35); }
.sui-topsearch {
  flex: 1; max-width: 340px; margin-left: auto;
  display: flex; align-items: center; gap: 9px;
  background: var(--sui-surface); border: 1px solid var(--sui-border);
  border-radius: 12px; padding: 9px 13px;
  color: var(--sui-text-3);
}
.sui-topsearch input {
  flex: 1; min-width: 0; background: none; border: none; outline: none;
  color: var(--sui-text); font-size: 13px;
}
.sui-topsearch input::placeholder { color: var(--sui-text-3); }
.sui-topsearch kbd {
  font-size: 10.5px; color: var(--sui-text-3);
  border: 1px solid var(--sui-border); border-radius: 6px; padding: 2px 6px;
}
.sui-topicons { display: flex; align-items: center; gap: 6px; margin-left: 6px; }

/* ---------- buttons / icons / chips ---------- */
.sui-iconbtn {
  position: relative;
  width: 38px; height: 38px; border-radius: 11px;
  display: inline-grid; place-items: center;
  background: var(--sui-surface); border: 1px solid var(--sui-border);
  color: var(--sui-text-2); transition: all .15s;
}
.sui-iconbtn:hover { color: #fff; background: var(--sui-surface-2); transform: translateY(-1px); }
.sui-iconbtn svg { width: 18px; height: 18px; }
.sui-iconbtn .n {
  position: absolute; top: -5px; right: -5px;
  min-width: 17px; height: 17px; padding: 0 4px;
  border-radius: 9px; background: var(--sui-red);
  color: #fff; font-size: 10px; font-weight: 600;
  display: grid; place-items: center; line-height: 1;
  border: 2px solid var(--sui-bg);
}
.sui-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  border: none; border-radius: 12px;
  padding: 10px 18px; font-size: 13.5px; font-weight: 600;
  color: #fff; background: var(--sui-grad);
  box-shadow: 0 6px 18px rgba(74, 107, 255, 0.35);
  transition: transform .15s, box-shadow .15s, opacity .15s;
}
.sui-btn:hover { transform: translateY(-1px); box-shadow: 0 8px 22px rgba(74, 107, 255, 0.45); }
.sui-btn:active { transform: translateY(0); }
.sui-btn.ghost {
  background: var(--sui-surface); color: var(--sui-text);
  border: 1px solid var(--sui-border); box-shadow: none;
}
.sui-btn.ghost:hover { background: var(--sui-surface-2); }
.sui-btn.soft { background: var(--sui-grad-soft); box-shadow: none; border: 1px solid rgba(122, 92, 255, 0.3); }
.sui-btn.danger { background: linear-gradient(135deg, #ff5c72, #d9334e); box-shadow: 0 6px 18px rgba(217, 51, 78, 0.35); }
.sui-btn.sm { padding: 7px 13px; font-size: 12.5px; border-radius: 10px; }
.sui-btn.block { width: 100%; }
.sui-btn[disabled] { opacity: .5; pointer-events: none; }

.sui-chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 999px;
  background: var(--sui-surface); border: 1px solid var(--sui-border);
  color: var(--sui-text-2); font-size: 12.5px; font-weight: 500;
  white-space: nowrap; transition: all .15s;
}
a.sui-chip:hover, button.sui-chip:hover { color: #fff; background: var(--sui-surface-2); }
.sui-chip.active { color: #fff; background: var(--sui-grad); border-color: transparent; box-shadow: 0 4px 14px rgba(74,107,255,.35); }
.sui-badge {
  display: inline-grid; place-items: center;
  min-width: 20px; height: 20px; padding: 0 6px;
  border-radius: 10px; font-size: 11px; font-weight: 600;
  background: var(--sui-brand); color: #fff;
}
.sui-badge.grad { background: var(--sui-grad); }
.sui-badge.muted { background: var(--sui-surface-3); color: var(--sui-text-2); }
.sui-tag {
  font-size: 10.5px; font-weight: 600; letter-spacing: .4px;
  padding: 3px 8px; border-radius: 6px; text-transform: uppercase;
}
.sui-tag.live { background: var(--sui-red); color: #fff; }
.sui-tag.new { background: var(--sui-green); color: #06210f; }
.sui-tag.grad { background: var(--sui-grad); color: #fff; }
.sui-tag.ghost { background: var(--sui-surface-3); color: var(--sui-text-2); }

/* ---------- cards / panels ---------- */
.sui-card {
  background: var(--sui-surface);
  border: 1px solid var(--sui-border);
  border-radius: var(--sui-r-lg);
  padding: 18px;
  backdrop-filter: blur(6px);
}
.sui-card.flush { padding: 0; overflow: hidden; }
.sui-card.hoverable { transition: transform .18s, border-color .18s, box-shadow .18s; }
.sui-card.hoverable:hover { transform: translateY(-2px); border-color: rgba(122, 92, 255, 0.4); box-shadow: var(--sui-shadow); }
.sui-sect {
  display: flex; align-items: center; justify-content: space-between;
  margin: 4px 2px 12px;
}
.sui-sect h2, .sui-sect h3 { margin: 0; font-size: 15px; font-weight: 600; }
.sui-sect .more { font-size: 12.5px; color: var(--sui-text-3); display: inline-flex; align-items: center; gap: 4px; }
.sui-sect .more:hover { color: var(--sui-text); }
.sui-divider { border: none; border-top: 1px solid var(--sui-border-soft); margin: 14px 0; }
.sui-muted { color: var(--sui-text-2); }
.sui-muted-2 { color: var(--sui-text-3); }
.sui-small { font-size: 12px; }
.sui-title-row { display: flex; align-items: center; gap: 10px; }

/* ---------- avatars ---------- */
.sui-ava { position: relative; flex-shrink: 0; width: 44px; height: 44px; }
.sui-ava > img, .sui-ava > .ph {
  width: 100%; height: 100%; border-radius: 50%; object-fit: cover;
  background: var(--sui-surface-3);
}
.sui-ava > .ph {
  display: grid; place-items: center;
  font-weight: 600; color: #fff; font-size: 15px;
  background: var(--sui-grad);
}
.sui-ava.sq > img, .sui-ava.sq > .ph { border-radius: 13px; }
.sui-ava.xs { width: 30px; height: 30px; }
.sui-ava.sm { width: 36px; height: 36px; }
.sui-ava.lg { width: 56px; height: 56px; }
.sui-ava.xl { width: 84px; height: 84px; }
.sui-ava .dot {
  position: absolute; right: -1px; bottom: -1px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--sui-green); border: 2.5px solid var(--sui-bg);
}
.sui-ava .dot.away { background: var(--sui-amber); }
.sui-ava .dot.off { background: var(--sui-text-3); }
.sui-ava.ring::before {
  content: ""; position: absolute; inset: -3px;
  border-radius: 50%; padding: 2.5px;
  background: var(--sui-grad);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.sui-ava.ring.seen::before { background: var(--sui-surface-3); }

/* ---------- side nav ---------- */
.sui-sidenav { display: flex; flex-direction: column; gap: 4px; }
.sui-sidenav .lbl {
  font-size: 11px; font-weight: 600; letter-spacing: .8px;
  text-transform: uppercase; color: var(--sui-text-3);
  padding: 12px 12px 6px;
}
.sui-sidenav a {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 12px; border-radius: 12px;
  color: var(--sui-text-2); font-size: 13.5px; font-weight: 500;
  transition: all .15s;
}
.sui-sidenav a svg { width: 19px; height: 19px; flex-shrink: 0; }
.sui-sidenav a:hover { color: #fff; background: var(--sui-surface-2); }
.sui-sidenav a.active { color: #fff; background: var(--sui-grad-soft); box-shadow: inset 0 0 0 1px rgba(122,92,255,.35); }
.sui-sidenav a .end { margin-left: auto; display: flex; align-items: center; gap: 6px; }

/* ---------- stories rail ---------- */
.sui-stories {
  display: flex; gap: 14px; overflow-x: auto;
  padding: 4px 2px 10px; scrollbar-width: none;
  scroll-snap-type: x mandatory;
}
.sui-stories::-webkit-scrollbar { display: none; }
.sui-story { scroll-snap-align: start; width: 76px; flex-shrink: 0; text-align: center; }
.sui-story .frame {
  position: relative; width: 72px; height: 72px; margin: 0 auto 7px;
  border-radius: 50%; padding: 3px;
  background: var(--sui-grad);
  transition: transform .18s;
}
.sui-story:hover .frame { transform: scale(1.05); }
.sui-story.seen .frame { background: var(--sui-surface-3); }
.sui-story .frame img {
  width: 100%; height: 100%; border-radius: 50%;
  object-fit: cover; border: 3px solid var(--sui-bg);
}
.sui-story .frame .plus {
  position: absolute; right: -2px; bottom: -2px;
  width: 24px; height: 24px; border-radius: 50%;
  background: var(--sui-brand); color: #fff;
  display: grid; place-items: center;
  border: 3px solid var(--sui-bg); font-size: 13px;
}
.sui-story .frame .livetag {
  position: absolute; left: 50%; bottom: -6px; transform: translateX(-50%);
  background: var(--sui-red); color: #fff;
  font-size: 9px; font-weight: 700; letter-spacing: .5px;
  padding: 2px 7px; border-radius: 6px; border: 2px solid var(--sui-bg);
}
.sui-story .name {
  font-size: 11.5px; color: var(--sui-text-2);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}

/* ---------- chat list ---------- */
.sui-chatlist { display: flex; flex-direction: column; }
.sui-chat {
  display: flex; align-items: center; gap: 13px;
  padding: 12px 14px; border-radius: 14px;
  transition: background .15s; position: relative;
}
.sui-chat:hover { background: var(--sui-surface-2); }
.sui-chat.active { background: var(--sui-grad-soft); box-shadow: inset 0 0 0 1px rgba(122,92,255,.3); }
.sui-chat .body { flex: 1; min-width: 0; }
.sui-chat .row1 { display: flex; align-items: baseline; gap: 8px; }
.sui-chat .name { font-size: 14px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sui-chat .time { margin-left: auto; font-size: 11px; color: var(--sui-text-3); flex-shrink: 0; }
.sui-chat .row2 { display: flex; align-items: center; gap: 8px; margin-top: 2px; }
.sui-chat .preview {
  flex: 1; min-width: 0; font-size: 12.5px; color: var(--sui-text-2);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.sui-chat.unread .preview, .sui-chat.unread .name { color: var(--sui-text); }
.sui-chat .ticks { color: var(--sui-brand); flex-shrink: 0; display: inline-flex; }
.sui-chat .kind { font-size: 10px; color: var(--sui-text-3); border: 1px solid var(--sui-border); padding: 1px 6px; border-radius: 5px; }

/* ---------- messages / bubbles ---------- */
.sui-thread { display: flex; flex-direction: column; gap: 4px; padding: 18px; }
.sui-day {
  align-self: center; margin: 10px 0;
  font-size: 11px; color: var(--sui-text-3);
  background: var(--sui-surface); border: 1px solid var(--sui-border-soft);
  padding: 4px 12px; border-radius: 999px;
}
.sui-msg { display: flex; gap: 9px; max-width: 78%; margin-top: 8px; }
.sui-msg .sui-ava { width: 32px; height: 32px; align-self: flex-end; }
.sui-msg .stack { display: flex; flex-direction: column; gap: 3px; min-width: 0; }
.sui-msg .who { font-size: 11px; color: var(--sui-text-3); margin-left: 4px; }
.sui-msg .bub {
  padding: 9px 13px; border-radius: 16px 16px 16px 5px;
  background: var(--sui-surface-2); border: 1px solid var(--sui-border-soft);
  font-size: 13.5px; line-height: 1.5; word-wrap: break-word;
}
.sui-msg .bub img { border-radius: 10px; margin: 2px 0; }
.sui-msg .meta {
  display: flex; align-items: center; gap: 5px;
  font-size: 10.5px; color: var(--sui-text-3); margin: 1px 5px 0;
}
.sui-msg.me { align-self: flex-end; flex-direction: row-reverse; }
.sui-msg.me .stack { align-items: flex-end; }
.sui-msg.me .bub {
  border-radius: 16px 16px 5px 16px;
  background: linear-gradient(135deg, #2e63e8, #6b3bd6);
  border-color: rgba(255,255,255,.12); color: #fff;
}
.sui-msg.me .meta { justify-content: flex-end; }
.sui-msg.me .meta .ticks { color: #9db4ff; }
.sui-msg .bub.voice { display: flex; align-items: center; gap: 9px; min-width: 200px; }
.sui-msg .bub.voice .wave { flex: 1; display: flex; align-items: center; gap: 2px; height: 22px; }
.sui-msg .bub.voice .wave i { flex: 1; background: currentColor; opacity: .55; border-radius: 2px; }

.sui-composer {
  display: flex; align-items: flex-end; gap: 9px;
  padding: 12px; border-top: 1px solid var(--sui-border-soft);
  background: rgba(255,255,255,.02);
}
.sui-composer .field {
  flex: 1; display: flex; align-items: center; gap: 8px;
  background: var(--sui-surface); border: 1px solid var(--sui-border);
  border-radius: 14px; padding: 9px 13px;
}
.sui-composer input, .sui-composer textarea {
  flex: 1; background: none; border: none; outline: none; resize: none;
  color: var(--sui-text); font-size: 13.5px; max-height: 100px;
}
.sui-composer input::placeholder, .sui-composer textarea::placeholder { color: var(--sui-text-3); }
.sui-send {
  width: 42px; height: 42px; border-radius: 13px; border: none;
  background: var(--sui-grad); color: #fff;
  display: grid; place-items: center; flex-shrink: 0;
  box-shadow: 0 5px 16px rgba(74,107,255,.4);
  transition: transform .15s;
}
.sui-send:hover { transform: scale(1.05); }
.sui-send svg { width: 18px; height: 18px; }

/* ---------- feed / posts ---------- */
.sui-post { overflow: hidden; }
.sui-post .head { display: flex; align-items: center; gap: 12px; padding: 15px 16px 11px; }
.sui-post .head .who { flex: 1; min-width: 0; }
.sui-post .head .who .n { font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.sui-post .head .who .t { font-size: 11.5px; color: var(--sui-text-3); }
.sui-post .text { padding: 0 16px 12px; font-size: 13.5px; color: var(--sui-text); }
.sui-post .media { position: relative; }
.sui-post .media img { width: 100%; max-height: 480px; object-fit: cover; }
.sui-post .media .grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.sui-post .actions {
  display: flex; align-items: center; gap: 4px;
  padding: 8px 10px; border-top: 1px solid var(--sui-border-soft);
}
.sui-act {
  display: inline-flex; align-items: center; gap: 7px;
  background: none; border: none; border-radius: 10px;
  color: var(--sui-text-2); font-size: 12.5px; font-weight: 500;
  padding: 8px 12px; transition: all .15s;
}
.sui-act:hover { background: var(--sui-surface-2); color: #fff; }
.sui-act.on { color: var(--sui-red); }
.sui-act.on.b { color: var(--sui-brand); }
.sui-act svg { width: 17px; height: 17px; }
.sui-post .foot { padding: 0 16px 14px; font-size: 12px; color: var(--sui-text-3); }

/* verified tick */
.sui-ver { color: var(--sui-brand); flex-shrink: 0; }
.sui-ver svg { width: 15px; height: 15px; display: block; }

/* ---------- composer card (share box) ---------- */
.sui-sharebox { display: flex; gap: 12px; align-items: center; }
.sui-sharebox .fake-input {
  flex: 1; text-align: left;
  background: var(--sui-surface); border: 1px solid var(--sui-border);
  border-radius: 999px; padding: 11px 18px;
  color: var(--sui-text-3); font-size: 13px;
  transition: border-color .15s;
}
.sui-sharebox .fake-input:hover { border-color: rgba(122,92,255,.45); }
.sui-sharebox .row2 { display: flex; gap: 4px; margin-top: 10px; }

/* ---------- member / user rows ---------- */
.sui-user {
  display: flex; align-items: center; gap: 12px;
  padding: 9px 10px; border-radius: 12px; transition: background .15s;
}
.sui-user:hover { background: var(--sui-surface-2); }
.sui-user .info { flex: 1; min-width: 0; }
.sui-user .info .n { font-size: 13.5px; font-weight: 600; display: flex; align-items: center; gap: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.sui-user .info .s { font-size: 11.5px; color: var(--sui-text-3); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ---------- channel list (server) ---------- */
.sui-chan { display: flex; flex-direction: column; gap: 2px; }
.sui-chan .lbl {
  display: flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 600; letter-spacing: .8px; text-transform: uppercase;
  color: var(--sui-text-3); padding: 13px 10px 5px;
}
.sui-chan a {
  display: flex; align-items: center; gap: 9px;
  padding: 7px 10px; border-radius: 9px;
  color: var(--sui-text-2); font-size: 13.5px;
}
.sui-chan a svg { width: 16px; height: 16px; opacity: .7; }
.sui-chan a:hover { background: var(--sui-surface-2); color: #fff; }
.sui-chan a.active { background: var(--sui-grad-soft); color: #fff; box-shadow: inset 0 0 0 1px rgba(122,92,255,.3); }
.sui-chan a .end { margin-left: auto; }

/* ---------- tabs ---------- */
.sui-tabs { display: flex; gap: 6px; padding: 5px; background: var(--sui-surface); border: 1px solid var(--sui-border); border-radius: 13px; }
.sui-tabs button, .sui-tabs a {
  flex: 1; border: none; background: none; border-radius: 9px;
  padding: 8px 10px; font-size: 12.5px; font-weight: 600;
  color: var(--sui-text-2); text-align: center; transition: all .15s;
  display: flex; align-items: center; justify-content: center; gap: 6px;
}
.sui-tabs .active { background: var(--sui-grad); color: #fff; box-shadow: 0 4px 12px rgba(74,107,255,.35); }

/* ---------- settings rows ---------- */
.sui-setrow {
  display: flex; align-items: center; gap: 14px;
  padding: 14px 16px; border-radius: 13px;
  transition: background .15s;
}
.sui-setrow:hover { background: var(--sui-surface-2); }
.sui-setrow .ic {
  width: 40px; height: 40px; border-radius: 12px; flex-shrink: 0;
  display: grid; place-items: center;
  background: var(--sui-grad-soft); color: #bfa8ff;
  border: 1px solid rgba(122,92,255,.25);
}
.sui-setrow .ic svg { width: 19px; height: 19px; }
.sui-setrow .tx { flex: 1; min-width: 0; }
.sui-setrow .tx .t { font-size: 13.5px; font-weight: 600; }
.sui-setrow .tx .d { font-size: 11.5px; color: var(--sui-text-3); margin-top: 1px; }
.sui-setrow .chev { color: var(--sui-text-3); }

/* toggle */
.sui-switch { position: relative; width: 44px; height: 25px; flex-shrink: 0; }
.sui-switch input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.sui-switch i {
  position: absolute; inset: 0; border-radius: 999px;
  background: var(--sui-surface-3); transition: background .2s;
}
.sui-switch i::after {
  content: ""; position: absolute; top: 3px; left: 3px;
  width: 19px; height: 19px; border-radius: 50%;
  background: #fff; transition: transform .2s;
}
.sui-switch input:checked + i { background: var(--sui-brand); }
.sui-switch input:checked + i::after { transform: translateX(19px); }

/* ---------- inputs ---------- */
.sui-input {
  width: 100%; background: var(--sui-surface);
  border: 1px solid var(--sui-border); border-radius: 12px;
  padding: 11px 14px; color: var(--sui-text); font-size: 13.5px;
  outline: none; transition: border-color .15s;
}
.sui-input:focus { border-color: rgba(74,107,255,.6); }
.sui-input::placeholder { color: var(--sui-text-3); }
.sui-field { display: flex; flex-direction: column; gap: 7px; margin-bottom: 14px; }
.sui-field > label { font-size: 12.5px; font-weight: 600; color: var(--sui-text-2); }

/* ---------- grids ---------- */
.sui-grid { display: grid; gap: 14px; }
.sui-grid.c2 { grid-template-columns: repeat(2, minmax(0,1fr)); }
.sui-grid.c3 { grid-template-columns: repeat(3, minmax(0,1fr)); }
.sui-grid.c4 { grid-template-columns: repeat(4, minmax(0,1fr)); }

/* media tile */
.sui-tile { position: relative; border-radius: var(--sui-r-md); overflow: hidden; aspect-ratio: 1; background: var(--sui-surface-2); }
.sui-tile img { width: 100%; height: 100%; object-fit: cover; transition: transform .3s; }
.sui-tile:hover img { transform: scale(1.06); }
.sui-tile .ov {
  position: absolute; inset: 0; display: flex; align-items: flex-end;
  padding: 10px; background: linear-gradient(to top, rgba(4,10,22,.75), transparent 55%);
  font-size: 11.5px; color: #fff; opacity: 0; transition: opacity .2s;
}
.sui-tile:hover .ov { opacity: 1; }
.sui-tile.wide { aspect-ratio: 16/9; }
.sui-tile.tall { aspect-ratio: 9/16; }

/* ---------- hero / cover ---------- */
.sui-cover {
  position: relative; border-radius: var(--sui-r-lg); overflow: hidden;
  min-height: 210px; background: var(--sui-bg-3);
}
.sui-cover img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sui-cover .scrim { position: absolute; inset: 0; background: linear-gradient(to top, rgba(6,13,26,.9) 0%, rgba(6,13,26,.15) 55%, transparent); }
.sui-cover .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 18px 20px; }

/* ---------- call screen ---------- */
.sui-call { display: flex; flex-direction: column; min-height: 100vh; }
.sui-call .stage { flex: 1; position: relative; display: grid; place-items: center; padding: 20px; }
.sui-call .controls {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  padding: 20px; background: rgba(4,9,18,.6); backdrop-filter: blur(10px);
}
.sui-callbtn {
  width: 54px; height: 54px; border-radius: 50%; border: none;
  display: grid; place-items: center;
  background: var(--sui-surface-2); color: #fff;
  border: 1px solid var(--sui-border); transition: all .15s;
}
.sui-callbtn:hover { background: var(--sui-surface-3); }
.sui-callbtn.off { background: rgba(255,92,114,.18); color: var(--sui-red); border-color: rgba(255,92,114,.35); }
.sui-callbtn.end { background: linear-gradient(135deg, #ff5c72, #d9334e); width: 64px; border-radius: 32px; }
.sui-callbtn svg { width: 22px; height: 22px; }

/* ---------- story viewer ---------- */
.sui-storyview { position: fixed; inset: 0; background: #04080f; display: flex; flex-direction: column; z-index: 80; }
.sui-storyview .prog { display: flex; gap: 5px; padding: 14px 16px 8px; }
.sui-storyview .prog i { flex: 1; height: 3px; border-radius: 3px; background: rgba(255,255,255,.22); overflow: hidden; position: relative; }
.sui-storyview .prog i.done::after, .sui-storyview .prog i.run::after {
  content: ""; position: absolute; inset: 0; background: #fff; border-radius: 3px;
  transform-origin: left; transform: scaleX(var(--p, 0));
}
.sui-storyview .prog i.done::after { transform: scaleX(1); }

/* ---------- mobile: header + bottom tabs ---------- */
.sui-mtop { display: none; }
.sui-tabbar { display: none; }

@media (max-width: 1180px) {
  .sui-main { grid-template-columns: 220px minmax(0, 1fr); }
  .sui-main.no-left { grid-template-columns: minmax(0,1fr); }
  .sui-rightbar-col { display: none; }
  .sui-main.no-right { grid-template-columns: 220px minmax(0, 1fr); }
}
@media (max-width: 860px) {
  .sui-topnav, .sui-topsearch kbd { display: none; }
  .sui-topbar { padding: 0 14px; gap: 10px; }
  .sui-topsearch { max-width: none; }
  .sui-main, .sui-main.no-left, .sui-main.no-right {
    grid-template-columns: minmax(0, 1fr);
    padding: 14px 12px 84px; gap: 14px;
  }
  .sui-leftbar-col { display: none; }
  .sui-msg { max-width: 88%; }
  .sui-grid.c4 { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .sui-grid.c3 { grid-template-columns: repeat(2, minmax(0,1fr)); }

  /* bottom tab bar */
  .sui-tabbar {
    display: flex; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    background: rgba(8,17,32,.92); backdrop-filter: blur(14px);
    border-top: 1px solid var(--sui-border-soft);
    padding: 7px 6px calc(7px + env(safe-area-inset-bottom));
  }
  .sui-tabbar a {
    flex: 1; display: flex; flex-direction: column; align-items: center; gap: 3px;
    color: var(--sui-text-3); font-size: 10.5px; font-weight: 500;
    padding: 4px 0; position: relative;
  }
  .sui-tabbar a svg { width: 21px; height: 21px; }
  .sui-tabbar a.active { color: #fff; }
  .sui-tabbar a.active::before {
    content: ""; position: absolute; top: -8px; width: 26px; height: 3px;
    border-radius: 0 0 4px 4px; background: var(--sui-grad);
  }
  .sui-tabbar a .n {
    position: absolute; top: 0; right: calc(50% - 20px);
    min-width: 16px; height: 16px; padding: 0 4px; border-radius: 8px;
    background: var(--sui-red); color: #fff; font-size: 9.5px; font-weight: 600;
    display: grid; place-items: center;
  }
}

/* ---------- misc ---------- */
.sui-hidden { display: none !important; }
.sui-toast-wrap { position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%); z-index: 200; display: flex; flex-direction: column; gap: 8px; }
.sui-toast {
  background: rgba(14,26,46,.96); border: 1px solid var(--sui-border);
  border-radius: 12px; padding: 11px 18px; font-size: 13px;
  box-shadow: var(--sui-shadow); display: flex; align-items: center; gap: 9px;
  animation: sui-up .25s ease;
}
.sui-toast .fa-check-circle { color: var(--sui-green); }
@keyframes sui-up { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.sui-skel { position: relative; overflow: hidden; background: var(--sui-surface-2); border-radius: 8px; }
.sui-skel::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.07), transparent);
  animation: sui-shimmer 1.4s infinite; transform: translateX(-100%);
}
@keyframes sui-shimmer { to { transform: translateX(100%); } }

.sui-empty { text-align: center; padding: 44px 20px; color: var(--sui-text-3); }
.sui-empty .big { font-size: 34px; margin-bottom: 10px; opacity: .6; }
.sui-empty .t { font-size: 14px; font-weight: 600; color: var(--sui-text-2); margin-bottom: 4px; }

.sui-menu {
  display: none;
  position: absolute; z-index: 90; min-width: 190px;
  background: rgba(13,24,44,.98); border: 1px solid var(--sui-border);
  border-radius: 14px; padding: 6px; box-shadow: var(--sui-shadow);
}
.sui-menu a, .sui-menu button {
  display: flex; align-items: center; gap: 10px; width: 100%;
  padding: 9px 11px; border: none; background: none; border-radius: 9px;
  color: var(--sui-text-2); font-size: 13px; text-align: left;
}
.sui-menu a:hover, .sui-menu button:hover { background: var(--sui-surface-2); color: #fff; }
.sui-menu a.danger, .sui-menu button.danger { color: var(--sui-red); }
.sui-menu .sep { border-top: 1px solid var(--sui-border-soft); margin: 5px 4px; }

/* desktop utility to split chat layout */
.sui-split { display: grid; grid-template-columns: 340px minmax(0,1fr); gap: 0; border-radius: var(--sui-r-lg); overflow: hidden; border: 1px solid var(--sui-border); background: var(--sui-surface); height: calc(100vh - var(--sui-topbar-h) - 40px); min-height: 540px; }
.sui-split .pane-l { border-right: 1px solid var(--sui-border-soft); display: flex; flex-direction: column; min-height: 0; }
.sui-split .pane-r { display: flex; flex-direction: column; min-height: 0; background: rgba(255,255,255,.015); }
.sui-split .scroll { flex: 1; overflow-y: auto; min-height: 0; }
@media (max-width: 860px) {
  .sui-split { grid-template-columns: minmax(0,1fr); height: calc(100vh - var(--sui-topbar-h) - 96px); }
  .sui-split .pane-r { display: none; }
  .sui-split.show-r .pane-l { display: none; }
  .sui-split.show-r .pane-r { display: flex; }
}
.sui-pane-head { display: flex; align-items: center; gap: 11px; padding: 13px 16px; border-bottom: 1px solid var(--sui-border-soft); }

/* community server: icon rail + channels + chat + members */
.sui-srv { display: grid; grid-template-columns: 76px 230px minmax(0,1fr) 220px; height: calc(100vh - var(--sui-topbar-h)); min-height: 560px; }
.sui-srv > .rail { background: rgba(255,255,255,.025); border-right: 1px solid var(--sui-border-soft); display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 14px 0; overflow-y: auto; }
.sui-srv > .rail .rv { position: relative; }
.sui-srv > .rail .rv.on::before { content:""; position:absolute; left:-14px; top:50%; transform:translateY(-50%); width:4px; height:34px; border-radius:0 4px 4px 0; background:var(--sui-grad); }
.sui-srv > .rail .rv img, .sui-srv > .rail .rv .ph { width:48px; height:48px; border-radius:16px; object-fit:cover; display:grid; place-items:center; font-weight:700; background:var(--sui-surface-3); transition:border-radius .18s, transform .18s; }
.sui-srv > .rail .rv:hover img, .sui-srv > .rail .rv:hover .ph { border-radius:50%; transform:scale(1.04); }
.sui-srv > .chans { border-right:1px solid var(--sui-border-soft); display:flex; flex-direction:column; min-height:0; background:rgba(255,255,255,.018); }
.sui-srv > .chat { display:flex; flex-direction:column; min-height:0; }
.sui-srv > .memb { border-left:1px solid var(--sui-border-soft); overflow-y:auto; background:rgba(255,255,255,.018); padding:12px 10px; }
.sui-srv .chat .scroll { flex:1; overflow-y:auto; min-height:0; }
@media (max-width: 1180px) { .sui-srv { grid-template-columns: 76px 220px minmax(0,1fr); } .sui-srv > .memb { display:none; } }
@media (max-width: 860px) {
  .sui-srv { grid-template-columns: 76px minmax(0,1fr); height: calc(100vh - var(--sui-topbar-h)); }
  .sui-srv > .chans { display:none; }
  .sui-srv > .memb { display:none; }
  .sui-srv.show-chans > .chat { display:none; }
  .sui-srv.show-chans > .chans { display:flex; }
}

/* ---------- page head + misc ---------- */
.sui-pagehead { margin-bottom: 18px; }
.sui-pagehead h1 { font-size: 24px; font-weight: 700; letter-spacing: -.02em; }
.sui-sub { color: var(--sui-text-3); font-size: 13.5px; margin-top: 4px; }
.sui-tile .ic {
  width: 46px; height: 46px; border-radius: 14px; display: grid; place-items: center;
  font-size: 19px; color: #fff; margin-bottom: 10px;
}
.sui-tile b { display: block; font-size: 14.5px; }
.sui-tile > span:last-child { font-size: 12px; color: var(--sui-text-3); margin-top: 3px; display: block; }
.sui-tile { padding: 18px; }

/* ---------- story viewer body ---------- */
.sui-storyview .media { position: absolute; inset: 0; }
.sui-storyview .media img { width: 100%; height: 100%; object-fit: contain; }
.sui-storyview .media .fill { position: absolute; inset: 0; background-size: cover; background-position: center; filter: blur(30px) brightness(.55); transform: scale(1.15); }
.sui-storyview .shead { position: relative; z-index: 2; display: flex; align-items: center; gap: 10px; padding: 8px 16px 10px; }
.sui-storyview .shead .who .n { font-weight: 600; font-size: 14px; }
.sui-storyview .shead .who .t { font-size: 11.5px; color: rgba(255,255,255,.65); }
.sui-storyview .sfoot { position: relative; z-index: 2; padding: 10px 16px 18px; display: flex; gap: 10px; align-items: center; }
.sui-storyview .sfoot input { flex: 1; background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22); }
.sui-storyview .snav { position: absolute; top: 50%; transform: translateY(-50%); z-index: 3; }
.sui-storyview .snav.prev { left: 12px; } .sui-storyview .snav.next { right: 12px; }

/* ---------- reels ---------- */
.sui-reel { position: relative; height: calc(100vh - 64px); scroll-snap-align: start; border-radius: 18px; overflow: hidden; background: #04080f; }
.sui-reel .vid { position: absolute; inset: 0; background-size: cover; background-position: center; }
.sui-reel .vid::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(4,9,18,.85), transparent 45%); }
.sui-reel .info { position: absolute; left: 16px; right: 76px; bottom: 18px; z-index: 2; }
.sui-reel .rail { position: absolute; right: 10px; bottom: 20px; z-index: 2; display: flex; flex-direction: column; gap: 14px; }
.sui-reel .rail .sui-act { flex-direction: column; gap: 4px; font-size: 11px; }
.sui-reelwrap { height: calc(100vh - 64px); overflow-y: auto; scroll-snap-type: y mandatory; border-radius: 18px; }
.sui-reelwrap::-webkit-scrollbar { display: none; }

/* ---------- call extras ---------- */
.sui-call .stage .who { text-align: center; z-index: 2; }
.sui-call .stage .who .n { font-size: 22px; font-weight: 600; margin-top: 14px; }
.sui-call .stage .who .t { color: var(--sui-text-3); font-size: 13px; margin-top: 4px; }
.sui-call .pip { position: absolute; right: 20px; bottom: 96px; width: 118px; height: 158px; border-radius: 14px; overflow: hidden; border: 2px solid rgba(255,255,255,.25); box-shadow: 0 12px 30px rgba(0,0,0,.45); }
.sui-call .pip img { width: 100%; height: 100%; object-fit: cover; }
.sui-call .bgblur { position: absolute; inset: 0; background-size: cover; background-position: center; filter: blur(34px) brightness(.45); transform: scale(1.2); }

/* ---------- misc rows ---------- */
.sui-row { display: flex; align-items: center; gap: 12px; padding: 10px 0; }
.sui-row .grow { flex: 1; min-width: 0; }
.sui-num { font-size: 20px; font-weight: 700; }
.sui-kv { color: var(--sui-text-3); font-size: 12px; }
.sui-pillrow { display: flex; flex-wrap: wrap; gap: 8px; }

/* ---------- single-column layout ---------- */
.sui-main.solo { grid-template-columns: minmax(0, 860px); justify-content: center; }
@media (max-width: 860px) { .sui-main.solo { grid-template-columns: minmax(0,1fr); } }
.sui-menu.open { display: block; }

/* ---------- small-screen overflow guard ---------- */
.sui-grid { align-items: start; }
@media (max-width: 560px) {
  .sui-topsearch { flex: 1 1 0; min-width: 0; }
  .sui-topsearch input { width: 100%; }
  .sui-topicons .sui-iconbtn:nth-child(2) { display: none; }
  .sui-main { padding-left: 10px; padding-right: 10px; }
  body.sui { overflow-x: hidden; }
}