/* Oparo Connect — accessible-first styles.
   WCAG AA contrast, visible focus, dark-mode-ready via CSS variables. */

:root {
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-2: #eef1f4;
  --border: #d2d9e0;
  --text: #14202b;          /* ~14:1 on surface */
  --text-soft: #51606e;     /* ~5.4:1 on surface — AA */
  --primary: #0c6b6b;       /* teal */
  --primary-ink: #ffffff;
  --primary-soft: #e2f0ef;
  --accent: #1d4ed8;
  --danger: #b3261e;
  --focus: #0a5cc2;
  --online: #1f8a3b;
  --busy: #b3261e;
  --away: #b06a00;
  --offline: #8a97a3;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(20,32,43,.12), 0 4px 14px rgba(20,32,43,.06);
  --font: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1419; --surface: #161e26; --surface-2: #1d2832; --border: #2c3a46;
    --text: #eaf0f5; --text-soft: #aebcc8; --primary: #2bb6b0; --primary-ink: #06231f;
    --primary-soft: #16312f; --focus: #6db3ff; --shadow: none;
  }
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0; font-family: var(--font); color: var(--text);
  background: var(--bg); font-size: 15px; line-height: 1.45;
}

/* Focus — never removed, always obvious */
:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; border-radius: 4px; }
:focus:not(:focus-visible) { outline: none; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: 100; background: var(--primary);
  color: var(--primary-ink); padding: 10px 16px; border-radius: 8px; transition: top .15s;
  text-decoration: none; font-weight: 600;
}
.skip-link:focus { top: 8px; }

button { font: inherit; cursor: pointer; }
.btn {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; font-weight: 500;
}
.btn:hover { background: var(--surface-2); }
.btn-primary { background: var(--primary); color: var(--primary-ink); border-color: var(--primary); }
.btn-primary:hover { filter: brightness(1.06); }
.btn-danger { color: var(--danger); }
.btn-sm { padding: 4px 8px; font-size: 13px; border-radius: 6px; }

/* ---------- Login ---------- */
.login { max-width: 560px; margin: 6vh auto; padding: 24px; }
.login h1 { margin: 0 0 4px; font-size: 28px; }
.login .tag { color: var(--text-soft); margin: 0 0 24px; }
.userlist { display: grid; gap: 10px; }
.usercard {
  display: flex; align-items: center; gap: 12px; width: 100%; text-align: left;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 14px;
}
.usercard:hover { border-color: var(--primary); }
.avatar {
  width: 40px; height: 40px; border-radius: 50%; background: var(--primary-soft);
  color: var(--primary); display: grid; place-items: center; font-weight: 700; flex: none;
}
.usercard .meta { display: flex; flex-direction: column; }
.usercard .name { font-weight: 600; }
.usercard .sub { color: var(--text-soft); font-size: 13px; }
.ws-group-title { margin: 18px 0 6px; font-size: 13px; text-transform: uppercase;
  letter-spacing: .04em; color: var(--text-soft); }

/* ---------- App shell ---------- */
.shell {
  display: grid; height: 100vh;
  grid-template-columns: 220px 300px 1fr;
  grid-template-rows: 56px 1fr;
  grid-template-areas: "head head head" "nav list main";
}
.shell.with-context { grid-template-columns: 220px 300px 1fr 320px;
  grid-template-areas: "head head head head" "nav list main ctx"; }

.appbar {
  grid-area: head; display: flex; align-items: center; gap: 14px; padding: 0 16px;
  background: var(--surface); border-bottom: 1px solid var(--border);
}
.appbar .brand { font-weight: 700; color: var(--primary); }
.appbar .ws { color: var(--text-soft); font-size: 13px; }
.appbar .spacer { flex: 1; }
.searchbtn { display: flex; align-items: center; gap: 8px; color: var(--text-soft); }
.kbd { border: 1px solid var(--border); border-bottom-width: 2px; border-radius: 5px;
  padding: 1px 6px; font-size: 12px; background: var(--surface-2); color: var(--text-soft); }

.primary-nav { grid-area: nav; background: var(--surface); border-right: 1px solid var(--border);
  padding: 10px 8px; overflow-y: auto; }
.primary-nav a {
  display: flex; align-items: center; gap: 10px; padding: 9px 10px; border-radius: 8px;
  color: var(--text); text-decoration: none; font-weight: 500;
}
.primary-nav a:hover { background: var(--surface-2); }
.primary-nav a[aria-current="page"] { background: var(--primary-soft); color: var(--primary); font-weight: 600; }
.primary-nav .ico { width: 22px; text-align: center; }

.secondary { grid-area: list; background: var(--surface); border-right: 1px solid var(--border);
  overflow-y: auto; padding: 8px; }
.secondary h2 { font-size: 13px; text-transform: uppercase; letter-spacing: .04em;
  color: var(--text-soft); margin: 10px 8px 6px; }
.chan { display: block; width: 100%; text-align: left; border: 0; background: none;
  padding: 8px 10px; border-radius: 8px; color: var(--text); }
.chan:hover { background: var(--surface-2); }
.chan[aria-current="true"] { background: var(--primary-soft); }
.chan .row1 { display: flex; align-items: center; gap: 8px; }
.chan .hash { color: var(--text-soft); }
.chan .nm { font-weight: 600; flex: 1; }
.chan .badge { background: var(--primary); color: var(--primary-ink); border-radius: 999px;
  font-size: 12px; font-weight: 700; padding: 1px 8px; min-width: 20px; text-align: center; }
.chan .last { color: var(--text-soft); font-size: 13px; white-space: nowrap; overflow: hidden;
  text-overflow: ellipsis; }

.main { grid-area: main; display: flex; flex-direction: column; min-width: 0; background: var(--bg); }
.context { grid-area: ctx; background: var(--surface); border-left: 1px solid var(--border);
  overflow-y: auto; padding: 14px; }

/* channel header */
.chan-head { display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  background: var(--surface); border-bottom: 1px solid var(--border); }
.chan-head h1 { font-size: 17px; margin: 0; }
.chan-head .desc { color: var(--text-soft); font-size: 13px; }
.chan-head .spacer { flex: 1; }

/* thread */
.thread { flex: 1; overflow-y: auto; padding: 14px 16px; }
.msg { padding: 8px 10px; border-radius: 10px; margin: 2px 0; }
.msg:focus-visible { outline: 3px solid var(--focus); outline-offset: 0; background: var(--surface); }
.msg:hover { background: var(--surface); }
.msg.pinned { border-left: 3px solid var(--primary); }
.msg .head { display: flex; align-items: baseline; gap: 8px; }
.msg .author { font-weight: 700; }
.msg .time { color: var(--text-soft); font-size: 12px; }
.msg .pinflag { color: var(--primary); font-size: 12px; font-weight: 600; }
.msg .body { white-space: pre-wrap; }
.msg .body .mention { background: var(--primary-soft); color: var(--primary); border-radius: 4px;
  padding: 0 4px; font-weight: 600; }
.msg.deleted .body { color: var(--text-soft); font-style: italic; }
.msg .links { margin-top: 4px; }
.crm-chip { display: inline-flex; align-items: center; gap: 6px; background: var(--surface-2);
  border: 1px solid var(--border); border-radius: 999px; padding: 2px 10px; font-size: 13px; }
.reactions { display: flex; gap: 6px; flex-wrap: wrap; list-style: none; padding: 0; margin: 6px 0 0; }
.reactions button { background: var(--surface-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 1px 9px; font-size: 13px; }
.reactions button[aria-pressed="true"] { background: var(--primary-soft); border-color: var(--primary); }

.newmsgs { position: sticky; bottom: 6px; display: block; margin: 6px auto; }

/* composer */
.composer { border-top: 1px solid var(--border); background: var(--surface); padding: 10px 16px; }
.paro-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 8px; }
.paro-bar .btn { color: var(--primary); border-color: var(--primary-soft); }
.composer .field { display: flex; gap: 8px; align-items: flex-end; }
.composer textarea {
  flex: 1; resize: none; min-height: 44px; max-height: 180px; padding: 10px 12px;
  border: 1px solid var(--border); border-radius: 10px; font: inherit; background: var(--surface); color: var(--text);
}
.composer .hint { color: var(--text-soft); font-size: 12px; margin-top: 6px; }
.typing { color: var(--text-soft); font-size: 13px; height: 18px; padding: 0 16px; }

/* presence dot + text */
.presence { display: inline-flex; align-items: center; gap: 6px; }
.dot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.dot.online { background: var(--online); } .dot.busy { background: var(--busy); }
.dot.away { background: var(--away); } .dot.dnd { background: var(--busy); }
.dot.offline { background: var(--offline); }

/* context panel */
.context h2 { font-size: 13px; text-transform: uppercase; color: var(--text-soft);
  letter-spacing: .04em; margin: 16px 0 6px; }
.context h2:first-child { margin-top: 0; }
.member-row { display: flex; align-items: center; gap: 8px; padding: 4px 0; }
.paro-out { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px;
  padding: 10px; margin-top: 8px; white-space: pre-wrap; }

/* overview / home */
.home { padding: 18px; overflow-y: auto; }
.home h1 { margin: 0 0 14px; }
.cards { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px; box-shadow: var(--shadow); }
.card h2 { font-size: 15px; margin: 0 0 10px; }
.card ul { margin: 0; padding-left: 18px; }
.card li { margin: 4px 0; }
.card .empty { color: var(--text-soft); }

/* dialog / menu */
.overlay { position: fixed; inset: 0; background: rgba(10,16,20,.45); display: grid;
  place-items: start center; padding-top: 12vh; z-index: 50; }
.dialog { background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  width: min(620px, 92vw); box-shadow: var(--shadow); padding: 14px; }
.dialog h2 { margin: 0 0 10px; font-size: 16px; }
.dialog input[type="search"], .dialog input[type="text"], .dialog select {
  width: 100%; padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
  font: inherit; background: var(--surface); color: var(--text); }
.results { margin-top: 10px; max-height: 50vh; overflow-y: auto; }
.results h3 { font-size: 12px; text-transform: uppercase; color: var(--text-soft); margin: 12px 0 4px; }
.result { display: block; width: 100%; text-align: left; border: 0; background: none;
  padding: 8px 10px; border-radius: 8px; color: var(--text); }
.result:hover, .result:focus-visible { background: var(--surface-2); }

.menu { position: absolute; z-index: 60; background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: var(--shadow); padding: 6px; min-width: 200px; }
.menu button { display: block; width: 100%; text-align: left; border: 0; background: none;
  padding: 8px 10px; border-radius: 6px; color: var(--text); }
.menu button:hover, .menu button:focus-visible { background: var(--surface-2); }
.menu button.danger { color: var(--danger); }

.toast { position: fixed; bottom: 16px; left: 50%; transform: translateX(-50%);
  background: var(--text); color: var(--surface); padding: 10px 16px; border-radius: 8px; z-index: 70; }

@media (max-width: 900px) {
  .shell, .shell.with-context { grid-template-columns: 1fr; grid-template-rows: 56px auto;
    grid-template-areas: "head" "main"; }
  .primary-nav, .secondary, .context { display: none; }
}