:root {
  color-scheme: dark;
  --bg: #04070c;
  --bg-2: #070d16;
  --surface: rgba(10, 17, 27, 0.82);
  --surface-solid: #0a111b;
  --surface-raised: #0d1724;
  --text: #eaf3fa;
  --muted: #9db2c4;
  --quiet: #647a8e;
  --line: rgba(122, 190, 232, 0.16);
  --line-strong: rgba(122, 190, 232, 0.3);
  --cyan: #46d8ff;
  --cyan-strong: #8fecff;
  --cyan-dim: rgba(70, 216, 255, 0.12);
  --blue: #2a6cff;
  --amber: #e8a33d;
  --danger: #ff7786;
  --violet: #8d7cff;
  --green: #46efae;
  --font-display: "Space Grotesk", "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { min-height: 100%; margin: 0; }
body {
  background:
    radial-gradient(circle at 8% 7%, rgba(42, 108, 255, 0.11), transparent 33rem),
    radial-gradient(circle at 88% 92%, rgba(70, 216, 255, 0.07), transparent 40rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-body);
}

body::before {
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background: linear-gradient(115deg, transparent 0 46%, rgba(70,216,255,.025) 46.1% 46.3%, transparent 46.4% 100%);
}
button, input, textarea { font: inherit; }
button, a, input, textarea { -webkit-tap-highlight-color: transparent; }
button { color: inherit; }
a { color: inherit; text-decoration: none; }
[hidden] { display: none !important; }

.noise {
  position: fixed; inset: 0; z-index: -1; opacity: 0.025; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.chat-header {
  position: relative; height: 70px; padding: 0 clamp(18px, 3vw, 46px); display: flex; align-items: center; gap: 24px;
  border-bottom: 1px solid var(--line); background: rgba(4, 7, 12, 0.9); backdrop-filter: blur(16px);
}
.chat-header::after { content: ""; position: absolute; left: 0; right: 0; top: 69px; height: 1px; background: linear-gradient(90deg, transparent, rgba(70,216,255,.7), transparent); opacity: .48; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-family: var(--font-display); font-weight: 700; }
.brand img { height: 36px; width: auto; filter: drop-shadow(0 0 10px rgba(70, 216, 255, 0.35)); }
.product-name { color: var(--muted); font: 600 0.74rem/1 var(--mono); letter-spacing: 0.14em; text-transform: uppercase; }
.product-chip { margin-left: 7px; padding: 3px 5px; border: 1px solid var(--line-strong); color: var(--cyan); font-size: 0.58rem; }
.product-chip { border-radius: 999px; padding-inline: 8px; background: rgba(70,216,255,.08); box-shadow: inset 0 0 12px rgba(70,216,255,.06); }
.session-actions { margin-left: auto; display: flex; align-items: center; gap: 16px; font: 500 0.72rem/1 var(--mono); letter-spacing: 0.08em; }
.connection-state { display: flex; align-items: center; gap: 7px; color: var(--quiet); }
.connection-state::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.connection-state[data-online="true"] { color: var(--cyan); }
.text-button { padding: 7px 10px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; }
.text-button:hover, .text-button:focus-visible { color: var(--text); border-color: var(--line-strong); }
.push-button { min-width: 44px; min-height: 44px; padding: 6px 11px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--muted); cursor: pointer; }
.push-button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
.push-button:hover, .push-button:focus-visible { color: var(--text); border-color: var(--line-strong); }
.push-button[data-enabled="true"] { color: var(--cyan); border-color: var(--cyan); background: var(--cyan-dim); }
.push-button:disabled { cursor: wait; opacity: .6; }

.login-shell {
  min-height: calc(100vh - 70px); max-width: 1180px; margin: 0 auto; padding: clamp(50px, 8vh, 100px) 28px;
  display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(340px, 0.8fr); gap: clamp(52px, 8vw, 110px); align-items: center;
}
.login-intro { position: relative; }
.hero-signal { width: min(360px, 68vw); height: 30px; margin-bottom: 28px; display: flex; align-items: center; gap: 8px; opacity: .78; }
.hero-signal::before, .hero-signal::after { content: ""; height: 1px; flex: 1; background: linear-gradient(90deg, transparent, var(--cyan)); }
.hero-signal::after { background: linear-gradient(90deg, var(--cyan), transparent); }
.hero-signal span { width: 2px; height: var(--h, 9px); border-radius: 4px; background: var(--cyan); box-shadow: 0 0 12px rgba(70,216,255,.62); animation: signal 1.8s ease-in-out infinite alternate; }
.hero-signal span:nth-child(2) { --h: 20px; animation-delay: -.7s; }
.hero-signal span:nth-child(3) { --h: 12px; animation-delay: -.3s; }
.hero-signal span:nth-child(4) { --h: 28px; animation-delay: -.9s; }
.hero-signal span:nth-child(5) { --h: 14px; animation-delay: -.45s; }
.hero-signal span:nth-child(6) { --h: 22px; animation-delay: -.15s; }
@keyframes signal { to { transform: scaleY(.45); opacity: .45; } }
.eyebrow { margin: 0 0 10px; color: var(--cyan); font: 600 0.67rem/1.2 var(--mono); letter-spacing: 0.17em; text-transform: uppercase; }
.login-intro h1 { margin: 0; max-width: 700px; font: 600 clamp(3rem, 6vw, 5.3rem)/0.96 var(--font-display); letter-spacing: -0.055em; }
.login-intro h1 span { color: var(--muted); }
.login-lede { max-width: 600px; margin: 28px 0 42px; color: var(--muted); font-size: clamp(1rem, 1.5vw, 1.17rem); line-height: 1.75; }
.feature-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; color: var(--muted); font-size: 0.85rem; }
.feature-list li { display: flex; align-items: center; gap: 15px; }
.feature-list span { color: var(--cyan); font: 500 0.61rem/1 var(--mono); }

.login-card { position: relative; padding: clamp(26px, 4vw, 42px); border: 1px solid var(--line); border-radius: 16px; background: linear-gradient(145deg, rgba(16, 29, 45, 0.93), rgba(6, 11, 19, 0.96)); box-shadow: 0 36px 110px rgba(0,0,0,.52), inset 0 1px 0 rgba(255,255,255,.04); backdrop-filter: blur(24px); }
.login-card::before, .login-card::after { content: ""; position: absolute; width: 23px; height: 23px; pointer-events: none; }
.login-card::before { top: -1px; left: -1px; border-top: 1px solid var(--cyan); border-left: 1px solid var(--cyan); }
.login-card::after { bottom: -1px; right: -1px; border-bottom: 1px solid var(--cyan); border-right: 1px solid var(--cyan); }
.login-card::before { border-radius: 16px 0 0; }
.login-card::after { border-radius: 0 0 16px; }
.login-card-heading { display: flex; gap: 15px; align-items: center; margin-bottom: 30px; }
.login-card-heading h2 { margin: 0; font: 600 1.5rem/1.2 var(--font-display); }
.signal-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 6px var(--cyan-dim), 0 0 20px var(--cyan); }
.login-card form { display: grid; gap: 9px; }
.login-card label { margin-top: 9px; color: var(--muted); font: 500 0.66rem/1 var(--mono); letter-spacing: 0.11em; text-transform: uppercase; }
.login-card input { width: 100%; padding: 14px 15px; border: 1px solid var(--line); border-radius: 2px; outline: none; background: rgba(2, 7, 13, 0.7); color: var(--text); }
.login-card input:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-dim); }
.primary-button { margin-top: 17px; min-height: 52px; padding: 0 19px; display: flex; align-items: center; justify-content: space-between; border: 1px solid var(--cyan); border-radius: 7px; background: linear-gradient(100deg, #84eaff, var(--cyan) 55%, #67bfff); color: #021019; font-weight: 700; cursor: pointer; box-shadow: 0 12px 34px rgba(70,216,255,.16); }
.primary-button:hover { filter: brightness(1.08); }
.primary-button:disabled { cursor: wait; opacity: .65; }
.form-error { margin: 7px 0 0; color: var(--danger); font-size: .8rem; line-height: 1.45; }
.privacy-note { margin-top: 25px; padding-top: 22px; display: grid; grid-template-columns: auto 1fr; gap: 12px; border-top: 1px solid var(--line); color: var(--quiet); }
.privacy-note svg { color: var(--cyan); }
.privacy-note p { margin: 0; font-size: .73rem; line-height: 1.6; }

.chat-shell { height: calc(100vh - 70px); display: grid; grid-template-columns: 300px minmax(330px, 1fr); overflow: hidden; }
.channel-panel, .roster-panel { min-height: 0; background: linear-gradient(180deg, rgba(11,20,32,.88), rgba(5,10,17,.8)); backdrop-filter: blur(22px); }
.channel-panel { display: flex; flex-direction: column; border-right: 1px solid var(--line); overflow: hidden; }
.roster-panel { overflow-y: auto; border-left: 1px solid var(--line); }
.panel-heading { min-height: 78px; padding: 20px 18px 15px; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--line); }
.panel-heading h2 { margin: 0; font: 600 1rem/1.2 var(--font-display); }
.people-drawer-title { min-width: 0; }
.people-drawer-count { margin-left: auto; color: var(--quiet); font: 500 .61rem/1 var(--mono); white-space: nowrap; }
.people-drawer-count strong { color: var(--muted); }
.room-list { flex: 0 1 38%; min-height: 120px; overflow-y: auto; padding: 12px 10px; border-bottom: 1px solid var(--line); }
.room-button { width: 100%; min-height: 50px; padding: 9px 11px; display: flex; align-items: center; gap: 11px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: var(--muted); text-align: left; cursor: pointer; }
.room-button:hover { color: var(--text); background: rgba(255,255,255,.025); }
.room-button[aria-current="true"] { border-color: rgba(70,216,255,.28); background: linear-gradient(90deg, rgba(70,216,255,.14), rgba(42,108,255,.06)); color: var(--text); box-shadow: inset 3px 0 0 var(--cyan); }
.room-icon { width: 22px; color: var(--cyan); font: 500 .82rem/1 var(--mono); text-align: center; }
.room-copy { flex: 1; min-width: 0; }
.room-name { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .79rem; font-weight: 600; }
.room-kind { display: block; margin-top: 3px; color: var(--quiet); font: 500 .54rem/1 var(--mono); text-transform: uppercase; letter-spacing: .09em; }
.unread-badge { min-width: 18px; padding: 3px 5px; border-radius: 9px; background: var(--cyan); color: var(--bg); font: 700 .58rem/1 var(--mono); text-align: center; }
.panel-foot { padding: 16px 18px; border-top: 1px solid var(--line); color: var(--quiet); font-size: .66rem; line-height: 1.5; }
.panel-foot p { margin: 0; }

.conversation-panel { position: relative; min-width: 0; min-height: 0; display: flex; flex-direction: column; }
.admin-console { flex: 0 0 auto; border-bottom: 1px solid rgba(232,163,61,.24); background: rgba(13,23,36,.96); }
.admin-console-toggle { width: 100%; min-height: 34px; padding: 7px clamp(13px,2vw,23px); display: flex; align-items: center; gap: 8px; border: 0; background: transparent; color: var(--amber); cursor: pointer; font: 600 .58rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.admin-console-toggle small { margin-left: auto; padding: 3px 7px; border-radius: 999px; background: rgba(232,163,61,.11); font-size: .5rem; }
.admin-console-toggle b { font-size: .9rem; transition: transform .16s ease; }
.admin-console[data-open="true"] .admin-console-toggle b { transform: rotate(90deg); }
.admin-console-panel { padding: 2px clamp(13px,2vw,23px) 12px; }
.admin-console-panel > p { margin: 0 0 8px; color: var(--quiet); font-size: .64rem; line-height: 1.5; }
.admin-action-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 7px; }
.admin-action-grid > button, .admin-unban-action { min-height: 54px; padding: 8px 10px; display: flex; align-items: center; gap: 9px; border: 1px solid var(--line); border-radius: 7px; background: var(--surface-solid); color: var(--muted); text-align: left; }
.admin-action-grid > button { cursor: pointer; }
.admin-action-grid > button:hover { border-color: rgba(232,163,61,.42); }
.admin-action-grid span { min-width: 0; flex: 1; display: grid; gap: 3px; }
.admin-action-grid strong { color: var(--text); font-size: .68rem; }
.admin-action-grid small { color: var(--quiet); font-size: .57rem; line-height: 1.35; }
.admin-action-grid b { color: var(--amber); font: 600 .55rem/1 var(--mono); text-transform: uppercase; }
.admin-action-grid .danger b, .admin-action-grid .danger strong { color: var(--danger); }
.admin-unban-action select, .admin-unban-action button { height: 30px; border: 1px solid var(--line); border-radius: 5px; background: var(--bg-2); color: var(--muted); font: 600 .55rem/1 var(--mono); }
.admin-unban-action select { max-width: 110px; padding: 0 6px; }
.admin-unban-action button { padding: 0 8px; color: var(--amber); cursor: pointer; }
.admin-unban-action button:disabled { opacity: .45; cursor: default; }
.conversation-tabs { min-height: 48px; padding: 7px 10px 0; display: flex; gap: 5px; overflow-x: auto; overflow-y: hidden; border-bottom: 1px solid var(--line); background: rgba(4,8,14,.84); scrollbar-width: thin; }
.conversation-tab { flex: 0 0 auto; height: 40px; display: flex; align-items: stretch; border: 1px solid transparent; border-bottom: 0; border-radius: 8px 8px 0 0; color: var(--quiet); background: rgba(255,255,255,.018); }
.conversation-tab:hover { color: var(--muted); background: rgba(255,255,255,.035); }
.conversation-tab[data-active="true"] { color: var(--text); border-color: var(--line-strong); background: linear-gradient(180deg, rgba(70,216,255,.12), rgba(11,20,33,.9)); box-shadow: inset 0 2px 0 var(--cyan); }
.conversation-tab-select, .conversation-tab-close { border: 0; background: transparent; color: inherit; cursor: pointer; }
.conversation-tab-select { max-width: 190px; padding: 0 10px 0 13px; display: flex; align-items: center; gap: 8px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 600 .68rem/1 var(--mono); }
.conversation-tab-close { width: 30px; padding: 0; font-size: 1rem; opacity: .58; }
.conversation-tab-close:hover { opacity: 1; color: var(--danger); }
.tab-unread { min-width: 17px; padding: 3px 4px; border-radius: 9px; background: var(--cyan); color: var(--bg); font: 700 .52rem/1 var(--mono); }
.conversation-heading { min-height: 78px; padding: 16px 22px; display: flex; align-items: center; gap: 14px; border-bottom: 1px solid var(--line); background: linear-gradient(90deg, rgba(11,20,33,.74), rgba(7,13,22,.46)); backdrop-filter: blur(18px); }
.conversation-heading h1 { margin: 0; font: 600 1.23rem/1.1 var(--font-display); }
.conversation-heading > div { min-width: 0; }
.room-members { margin-top: 7px; display: flex; align-items: center; gap: 5px; min-width: 0; overflow: hidden; color: var(--quiet); font: 500 .53rem/1 var(--mono); }
.room-members-label { flex: 0 0 auto; letter-spacing: .1em; text-transform: uppercase; }
.room-member { flex: 0 0 auto; padding: 3px 5px; display: inline-flex; align-items: center; gap: 4px; border: 1px solid var(--line); border-radius: 999px; background: var(--surface); color: var(--quiet); }
.room-member i { width: 5px; height: 5px; border-radius: 50%; background: currentColor; opacity: .55; }
.room-member[data-online="true"] { color: var(--muted); }
.room-member[data-online="true"] i { color: var(--green); opacity: 1; box-shadow: 0 0 6px currentColor; }
.room-members-overflow { flex: 0 0 auto; }
.member-count { margin-left: auto; color: var(--quiet); font: 500 .62rem/1 var(--mono); text-transform: uppercase; letter-spacing: .08em; }
.history-load-earlier { flex: 0 0 auto; white-space: nowrap; }
.mobile-panel-button, .mobile-close { display: none; border: 1px solid var(--line); background: transparent; cursor: pointer; }
.announcement, .relay-error { margin: 10px 14px 0; padding: 10px 12px; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; border: 1px solid rgba(232, 163, 61, .38); background: rgba(232, 163, 61, .09); color: #f5cf91; font-size: .76rem; line-height: 1.5; }
.announcement strong { display: block; margin-bottom: 3px; font: 600 .61rem/1 var(--mono); letter-spacing: .08em; }
.announcement span { display: block; }
.announcement button, .relay-error button { border: 0; background: transparent; color: inherit; cursor: pointer; font-size: 1.1rem; }
.relay-error { border-color: rgba(255, 119, 134, .42); background: rgba(255, 119, 134, .08); color: #ffadb6; }
.message-list { flex: 1; overflow-y: auto; padding: 22px clamp(16px, 3vw, 38px); scroll-behavior: smooth; }
.message { max-width: 780px; margin: 0 0 21px; padding: 2px 0; display: grid; grid-template-columns: 44px minmax(0, 1fr); gap: 12px; }
.message-avatar { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(145deg, var(--surface-raised), #080f19); color: var(--cyan); font: 600 .59rem/1 var(--mono); box-shadow: 0 9px 22px rgba(0,0,0,.18); }
.message.own .message-avatar { color: var(--amber); }
.message-meta { margin-bottom: 5px; display: flex; align-items: baseline; gap: 9px; }
.message-from { font: 700 .73rem/1 var(--mono); letter-spacing: .04em; }
.message.own .message-from { color: var(--amber); }
.message-time { color: var(--quiet); font-size: .61rem; }
.message-text { margin: 0; color: #d9e6ef; font-size: .86rem; line-height: 1.58; white-space: pre-wrap; overflow-wrap: anywhere; }
.message-text a { color: var(--cyan-strong); text-decoration: underline; }
.message-media { display: block; max-width: min(100%, 520px); margin-top: 9px; border: 1px solid var(--line); }
img.message-media { max-height: 420px; object-fit: contain; background: var(--bg); }
audio.message-media { width: min(100%, 380px); }
.empty-state { position: absolute; inset: 126px 0 190px; display: grid; align-content: center; justify-items: center; pointer-events: none; color: var(--quiet); text-align: center; }

.ptt-dock { min-height: 104px; margin: 0 clamp(13px, 2vw, 23px) 10px; padding: 12px 16px; display: grid; grid-template-columns: 44px minmax(120px, 1fr) 62px minmax(150px, 190px) auto 76px; align-items: center; gap: 15px; border: 1px solid var(--line); border-radius: 14px; background: linear-gradient(115deg, rgba(13,24,38,.97), rgba(7,13,22,.94)); box-shadow: 0 16px 38px rgba(0,0,0,.28), inset 0 1px 0 rgba(255,255,255,.04); }
.ptt-target-mark { width: 44px; height: 44px; display: grid; place-items: center; overflow: hidden; border: 1px solid rgba(70,216,255,.28); border-radius: 50%; background: linear-gradient(145deg, rgba(70,216,255,.14), rgba(42,108,255,.08)); color: var(--cyan-strong); font: 700 .56rem/1 var(--mono); letter-spacing: -.02em; box-shadow: inset 0 0 18px rgba(70,216,255,.06); }
.ptt-drawer-toggle { display: none; }
.ptt-drawer-content { display: contents; }
.ptt-scope { min-width: 0; display: grid; gap: 3px; }
.ptt-kicker { color: var(--cyan); font: 600 .55rem/1 var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.ptt-scope strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 600 .9rem/1.3 var(--font-display); }
.ptt-detail { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--quiet); font-size: .63rem; }
.ptt-levels { height: 31px; display: flex; align-items: center; justify-content: center; gap: 4px; opacity: .45; }
.ptt-levels i { width: 4px; height: 8px; border-radius: 4px; background: var(--line-strong); transition: height .12s ease, background .12s ease, box-shadow .12s ease; }
.ptt-levels i:nth-child(2), .ptt-levels i:nth-child(4) { height: 14px; }
.ptt-levels i:nth-child(3) { height: 20px; }
.ptt-levels[data-level="1"] i:nth-child(-n+1), .ptt-levels[data-level="2"] i:nth-child(-n+2), .ptt-levels[data-level="3"] i:nth-child(-n+3), .ptt-levels[data-level="4"] i:nth-child(-n+4), .ptt-levels[data-level="5"] i { background: var(--green); box-shadow: 0 0 7px rgba(70,239,174,.38); }
.ptt-audio-controls { min-width: 0; display: grid; gap: 7px; }
.ptt-microphone { min-width: 0; display: grid; grid-template-columns: auto 1fr; gap: 4px 7px; color: var(--quiet); font: 600 .5rem/1 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.ptt-microphone small { overflow: hidden; color: var(--green); font: 500 .48rem/1 var(--mono); letter-spacing: 0; text-align: right; text-overflow: ellipsis; text-transform: none; white-space: nowrap; }
.ptt-microphone small[data-warning="true"] { color: var(--amber); }
.ptt-microphone select { width: 100%; min-width: 0; height: 25px; grid-column: 1 / -1; padding: 0 22px 0 7px; border: 1px solid var(--line); border-radius: 5px; outline: none; background: var(--surface-solid); color: var(--text); font: 500 .58rem/1 var(--font-body); }
.ptt-microphone select:focus { border-color: var(--cyan); }
.ptt-microphone select:disabled { opacity: .55; }
.ptt-volume { min-width: 0; display: grid; grid-template-columns: 1fr auto; gap: 3px 8px; color: var(--quiet); font: 600 .5rem/1 var(--mono); letter-spacing: .07em; text-transform: uppercase; }
.ptt-volume input { width: 100%; grid-column: 1 / -1; accent-color: var(--cyan); cursor: pointer; }
.ptt-volume output { color: var(--cyan-strong); }
.ptt-button { position: relative; width: 112px; height: 58px; padding: 4px; border: 1px solid rgba(70,216,255,.38); border-radius: 999px; background: rgba(70,216,255,.06); color: var(--cyan-strong); cursor: pointer; touch-action: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent; transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease; }
.ptt-button > * { pointer-events: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; }
.ptt-button-core { height: 100%; display: flex; align-items: center; justify-content: center; gap: 7px; border-radius: 999px; background: linear-gradient(110deg, rgba(70,216,255,.17), rgba(42,108,255,.12)); font: 700 .6rem/1 var(--mono); letter-spacing: .09em; }
.ptt-button svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.ptt-button:not(:disabled):hover { transform: translateY(-1px); border-color: var(--cyan); box-shadow: 0 0 25px rgba(70,216,255,.14); }
.ptt-button:disabled { cursor: not-allowed; opacity: .38; }
.ptt-dock[data-state="connecting"] .ptt-button { color: #fff; border-color: var(--violet); box-shadow: 0 0 28px rgba(141,124,255,.28); }
.ptt-dock[data-state="transmitting"] { border-color: rgba(255,119,134,.45); }
.ptt-dock[data-state="transmitting"] .ptt-button { color: #fff; border-color: var(--danger); background: rgba(255,119,134,.12); box-shadow: 0 0 30px rgba(255,119,134,.34); transform: scale(.98); }
.ptt-dock[data-state="transmitting"] .ptt-button-core { background: linear-gradient(110deg, rgba(255,119,134,.38), rgba(255,89,118,.22)); }
.ptt-dock[data-state="receiving"] { border-color: rgba(70,239,174,.4); }
.ptt-dock[data-state="transmitting"] .ptt-levels { opacity: 1; }
.ptt-shortcut { display: grid; justify-items: center; gap: 5px; color: var(--quiet); font-size: .55rem; }
.ptt-shortcut kbd { min-width: 54px; padding: 5px 7px; border: 1px solid var(--line); border-radius: 5px; background: rgba(255,255,255,.03); color: var(--muted); font: 600 .51rem/1 var(--mono); text-align: center; box-shadow: inset 0 -2px rgba(0,0,0,.24); }
.empty-state h2 { margin: 15px 0 6px; color: var(--muted); font: 500 1.1rem/1.2 var(--font-display); }
.empty-state p { margin: 0; font-size: .74rem; }
.empty-mark { width: 54px; height: 54px; display: grid; place-items: center; border: 1px solid var(--line); color: var(--cyan); font: 500 1.3rem/1 var(--font-display); transform: rotate(45deg); }
.empty-mark::first-letter { transform: rotate(-45deg); }

.composer { padding: 0 clamp(13px, 2vw, 23px) 15px; background: rgba(4, 7, 12, .88); }
.composer-row { display: flex; align-items: flex-end; gap: 8px; }
.message-input-wrap { flex: 1; min-width: 0; }
.message-input-wrap textarea { width: 100%; max-height: 116px; min-height: 42px; padding: 11px 13px; display: block; resize: none; outline: none; border: 1px solid var(--line); border-radius: 8px; background: var(--surface-solid); color: var(--text); line-height: 1.4; }
.message-input-wrap textarea:focus { border-color: var(--cyan); }
.attach-button, .voice-button, .send-button { height: 42px; min-width: 42px; display: inline-grid; place-items: center; border: 1px solid var(--line); background: var(--surface-solid); color: var(--muted); cursor: pointer; }
.attach-button input { display: none; }
.attach-button:hover, .voice-button:hover { color: var(--cyan); border-color: var(--line-strong); }
.voice-button[data-recording="true"] { color: var(--danger); border-color: var(--danger); animation: pulse 1.2s infinite; }
.send-button { padding: 0 18px; background: var(--cyan); border-color: var(--cyan); color: var(--bg); font-weight: 700; }
.send-button:disabled { opacity: .45; cursor: not-allowed; }
.attachment-preview { margin-bottom: 8px; padding: 7px 10px; display: flex; justify-content: space-between; border: 1px solid var(--line); background: var(--cyan-dim); color: var(--muted); font-size: .7rem; }
.attachment-preview button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.message-file { width: min(100%, 320px); margin-top: 8px; padding: 10px 12px; display: flex; align-items: center; gap: 10px; border: 1px solid var(--line); border-radius: 9px; background: rgba(70,216,255,.055); color: var(--text); text-decoration: none; }
.message-file:hover { border-color: var(--line-strong); background: rgba(70,216,255,.09); }
.message-file-icon { width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 8px; background: var(--cyan-dim); color: var(--cyan); font: 700 .9rem/1 var(--mono); }
.message-file-copy { min-width: 0; display: grid; gap: 3px; }
.message-file-copy strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 600 .7rem/1.2 var(--mono); }
.message-file-copy small { color: var(--quiet); font-size: .6rem; }
.composer-status { min-height: 1em; margin: 6px 0 0 92px; color: var(--quiet); font-size: .64rem; }
@keyframes pulse { 50% { box-shadow: 0 0 14px rgba(255,119,134,.45); } }

.roster-heading { display: flex; justify-content: space-between; }
.roster-heading h2 span { color: var(--cyan); font: 500 .67rem/1 var(--mono); }
.section-label { margin: 0; padding: 12px 15px 7px; color: var(--quiet); font: 600 .57rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; }
.friend-requests { padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.friend-list { padding-bottom: 5px; border-bottom: 1px solid var(--line); }
.offline-friends-toggle { width: 100%; padding: 8px 15px; display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 7px; border: 0; background: transparent; color: var(--quiet); cursor: pointer; font: 600 .57rem/1 var(--mono); letter-spacing: .1em; text-align: left; text-transform: uppercase; }
.offline-friends-toggle:hover { color: var(--muted); background: var(--cyan-dim); }
.offline-friends-chevron { font-size: .9rem; transition: transform .16s ease; }
.offline-friends-toggle[aria-expanded="true"] .offline-friends-chevron { transform: rotate(90deg); }
.operator-row { padding: 10px 13px; display: flex; align-items: center; gap: 9px; }
.operator-row:hover { background: rgba(255,255,255,.025); }
.operator-status { flex: 0 0 auto; width: 7px; height: 7px; border-radius: 50%; background: var(--quiet); }
.operator-status.rx { background: var(--cyan); box-shadow: 0 0 7px rgba(70,216,255,.6); }
.operator-status.tx { background: var(--amber); box-shadow: 0 0 7px rgba(232,163,61,.6); }
.operator-main { flex: 1; min-width: 0; }
.operator-call { display: block; color: var(--text); font: 600 .72rem/1 var(--mono); }
.operator-call.admin { color: var(--amber); }
.operator-note { display: block; margin-top: 4px; color: var(--quiet); font-size: .58rem; text-transform: uppercase; }
.operator-actions { display: flex; gap: 4px; }
.mini-button { min-width: 27px; height: 27px; padding: 0 7px; border: 1px solid var(--line); background: transparent; color: var(--muted); cursor: pointer; font: 500 .58rem/1 var(--mono); }
.mini-button:hover { border-color: var(--line-strong); color: var(--cyan); }
.message-button { color: var(--cyan); }
.friend-toggle-button { color: var(--quiet); }
.operator-actions .friend-toggle-button { margin-left: 2px; }
.friend-toggle-button[aria-pressed="true"] { color: var(--amber); }
.friend-toggle-button:disabled { cursor: default; opacity: .55; }
.request-row { padding: 8px 13px; display: grid; grid-template-columns: 1fr auto auto; gap: 5px; align-items: center; font: 600 .68rem/1 var(--mono); }
.operator-directory { flex: 1 1 auto; min-height: 150px; overflow-y: auto; padding-bottom: 8px; }
.directory-heading { padding-right: 13px; display: flex; align-items: center; justify-content: space-between; }
.directory-heading > span { color: var(--green); font: 600 .52rem/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.directory-heading > span::before { content: ""; width: 5px; height: 5px; margin-right: 6px; display: inline-block; border-radius: 50%; background: currentColor; box-shadow: 0 0 7px currentColor; }
.friend-ptt-button { min-width: 38px; height: 27px; padding: 0 7px; border: 1px solid rgba(70,216,255,.32); border-radius: 999px; background: rgba(70,216,255,.09); color: var(--cyan); cursor: pointer; font: 700 .5rem/1 var(--mono); letter-spacing: .06em; touch-action: none; -webkit-user-select: none; user-select: none; -webkit-touch-callout: none; -webkit-tap-highlight-color: transparent; }
.friend-ptt-button:hover { border-color: var(--cyan); box-shadow: 0 0 14px rgba(70,216,255,.13); }
.friend-ptt-button[data-state="transmitting"] { border-color: var(--danger); background: rgba(255,119,134,.15); color: #fff; box-shadow: 0 0 16px rgba(255,119,134,.24); }
.friend-ptt-button[data-state="receiving"] { border-color: var(--green); background: rgba(70,239,174,.13); color: var(--green); }

.visually-hidden { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0,0,0,0) !important; white-space: nowrap !important; border: 0 !important; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 2px; }

@media (min-width: 981px) {
  .ptt-button-core { flex-direction: column; gap: 3px; font-size: .52rem; }
  .ptt-button svg { width: 15px; }
  .ptt-button b { white-space: nowrap; }
}

@media (max-width: 980px) {
  .chat-header { height: 62px; padding-inline: 14px; gap: 13px; }
  .brand img { height: 31px; }
  .brand span { display: none; }
  .product-name { font-size: .65rem; }
  .session-actions { gap: 9px; }
  .session-actions strong { display: none; }
  .push-button span { display: none; }
  .login-shell { min-height: calc(100vh - 62px); padding: 44px 20px 64px; grid-template-columns: 1fr; gap: 45px; }
  .login-intro h1 { font-size: clamp(2.55rem, 13vw, 4rem); }
  .login-lede { margin-bottom: 30px; }
  .chat-shell { height: calc(100vh - 62px); height: calc(100dvh - 62px); grid-template-columns: 1fr; }
  .channel-panel { position: fixed; z-index: 30; top: 62px; right: 0; bottom: 0; width: min(420px, 92vw); transform: translateX(104%); transition: transform .2s ease; border-right: 0; border-left: 1px solid var(--line-strong); background: var(--bg-2); box-shadow: -24px 0 64px rgba(0,0,0,.55); }
  .channel-panel[data-open="true"] { transform: translateX(0); }
  .mobile-scrim { position: fixed; z-index: 20; inset: 62px 0 0; border: 0; background: rgba(0,0,0,.58); }
  .mobile-panel-button, .mobile-close { display: inline-grid; place-items: center; }
  .conversation-heading { min-height: 70px; padding-inline: 12px; }
  .admin-action-grid { grid-template-columns: 1fr; }
  .admin-console-panel { max-height: min(48vh,360px); overflow-y: auto; }
  .conversation-tabs { min-height: 45px; padding-inline: 7px; }
  .conversation-tab { height: 37px; }
  .conversation-tab-select { max-width: 145px; }
  .conversation-heading .eyebrow { display: none; }
  .room-members { max-width: min(58vw, 330px); }
  .member-count { display: none; }
  .roster-button { min-height: 38px; margin-left: auto; padding: 0 8px; grid-auto-flow: column; gap: 6px; border-color: rgba(70,216,255,.3); border-radius: 9px; background: var(--cyan-dim); color: var(--cyan-strong); font: 650 .62rem/1 var(--font-body); letter-spacing: .06em; text-transform: uppercase; }
  .roster-button svg { width: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .roster-button strong { min-width: 21px; height: 21px; padding: 0 5px; display: inline-grid; place-items: center; border-radius: 999px; background: rgba(70,216,255,.16); color: var(--text); font: 600 .58rem/1 var(--mono); }
  .panel-heading { min-height: 72px; padding: 13px 14px; background: linear-gradient(110deg, rgba(13,23,36,.98), rgba(7,13,22,.98)); }
  .panel-heading .eyebrow { margin-bottom: 5px; }
  .panel-heading h2 { font-size: 1rem; }
  .mobile-close { width: 40px; height: 40px; padding: 0; flex: 0 0 auto; border-radius: 8px; font-size: 1.2rem; }
  .operator-row { min-height: 56px; padding: 6px 10px; gap: 7px; }
  .operator-actions { flex: 0 0 auto; align-items: center; gap: 6px; }
  .operator-actions .mini-button { min-width: 40px; height: 40px; padding: 0 9px; border-radius: 7px; font-size: .72rem; }
  .operator-actions .friend-ptt-button { min-width: 56px; height: 44px; padding: 0 10px; border-radius: 7px; font-size: .63rem; }
  .friend-toggle-button { font-size: .9rem !important; }
  .message-list { padding: 18px 13px; }
  .message { grid-template-columns: 34px minmax(0, 1fr); gap: 9px; }
  .message-avatar { width: 32px; height: 32px; font-size: .49rem; }
  .ptt-dock { min-height: 78px; margin: 0 8px 10px; padding: 12px 12px; grid-template-columns: 52px minmax(0, 1fr) auto; grid-template-rows: auto; align-items: center; gap: 10px 12px; overflow: hidden; background: linear-gradient(150deg, rgba(13,24,38,.98), rgba(7,13,22,.97)); transition: min-height .2s ease, border-color .2s ease, box-shadow .2s ease; }
  .ptt-dock[data-expanded="true"] { min-height: 238px; grid-template-rows: auto 1fr; padding-bottom: 17px; border-color: rgba(70,216,255,.32); background: radial-gradient(circle at 50% 74%, rgba(70,216,255,.11), transparent 37%), linear-gradient(150deg, rgba(13,24,38,.98), rgba(7,13,22,.97)); box-shadow: 0 -16px 42px rgba(0,0,0,.38), inset 0 1px 0 rgba(255,255,255,.04); }
  .ptt-target-mark { width: 52px; height: 52px; font-size: .62rem; }
  .ptt-scope { align-self: center; gap: 4px; }
  .ptt-kicker { font-size: .58rem; }
  .ptt-scope strong { font-size: 1.08rem; }
  .ptt-detail { font-size: .68rem; }
  .ptt-drawer-toggle { min-width: 78px; height: 44px; padding: 0 10px; display: inline-flex; align-items: center; justify-content: center; gap: 6px; border: 1px solid rgba(70,216,255,.34); border-radius: 999px; background: var(--cyan-dim); color: var(--cyan-strong); cursor: pointer; font: 700 .55rem/1 var(--mono); letter-spacing: .06em; }
  .ptt-drawer-toggle:disabled { cursor: not-allowed; opacity: .45; }
  .ptt-drawer-toggle svg { width: 14px; fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round; transition: transform .2s ease; }
  .ptt-drawer-toggle[aria-expanded="true"] svg { transform: rotate(180deg); }
  .ptt-drawer-content { width: 100%; grid-column: 1 / -1; grid-row: 2; display: grid; grid-template-columns: minmax(0, 1fr) 142px; grid-template-rows: 31px 1fr; align-items: center; gap: 8px 14px; }
  .ptt-dock:not([data-expanded="true"]) .ptt-drawer-content { display: none; }
  .ptt-levels { grid-column: 1; grid-row: 1; justify-content: flex-start; }
  .ptt-audio-controls { grid-column: 1; grid-row: 2; }
  .ptt-shortcut { display: none; }
  .ptt-button { width: 142px; height: 142px; padding: 7px; grid-column: 2; grid-row: 1 / 3; justify-self: center; border-width: 2px; border-color: rgba(70,216,255,.56); box-shadow: 0 0 0 9px rgba(70,216,255,.045), 0 18px 38px rgba(0,0,0,.38); }
  .ptt-button::before { content: ""; position: absolute; inset: -10px; z-index: -1; border: 1px solid rgba(70,216,255,.13); border-radius: 50%; }
  .ptt-button-core { flex-direction: column; gap: 10px; border-radius: 50%; font-size: .65rem; line-height: 1.2; text-align: center; }
  .ptt-button svg { width: 29px; }
  .ptt-button:not(:disabled):hover { transform: none; }
  .ptt-button:not(:disabled):active { transform: scale(.96); }
  .ptt-button:disabled { opacity: .42; }
  .ptt-dock[data-state="connecting"] .ptt-button, .ptt-dock[data-state="receiving"] .ptt-button, .ptt-dock[data-state="transmitting"] .ptt-button { transform: scale(.97); }
  .composer { padding-inline: 9px; padding-bottom: max(15px, env(safe-area-inset-bottom)); }
  .send-button { padding-inline: 12px; }
  .composer-status { margin-left: 0; }
}

@media (max-width: 980px) and (max-height: 560px) {
  .conversation-heading { min-height: 56px; padding-block: 8px; }
  .ptt-dock { min-height: 66px; padding-block: 8px; grid-template-columns: 42px minmax(0, 1fr) auto; grid-template-rows: auto; gap: 3px 10px; }
  .ptt-dock[data-expanded="true"] { min-height: 122px; grid-template-columns: 42px minmax(0, 1fr) 104px; grid-template-rows: 42px auto; padding-block: 10px; }
  .ptt-target-mark { width: 42px; height: 42px; grid-column: 1; grid-row: 1; }
  .ptt-scope { grid-column: 2; }
  .ptt-dock[data-expanded="true"] .ptt-scope { grid-row: 1 / 3; }
  .ptt-drawer-content { grid-column: 3; grid-row: 1 / 3; }
  .ptt-dock[data-expanded="true"] .ptt-drawer-toggle { min-width: 42px; width: 42px; height: 36px; padding: 0; grid-column: 1; grid-row: 2; }
  .ptt-dock[data-expanded="true"] .ptt-drawer-toggle span { display: none; }
  .ptt-drawer-content { display: contents; }
  .ptt-levels { display: none; }
  .ptt-audio-controls { grid-column: 2; grid-row: 2; align-self: end; }
  .ptt-audio-controls .ptt-volume, .ptt-microphone small { display: none; }
  .ptt-button { width: 104px; height: 104px; padding: 5px; grid-column: 3; grid-row: 1 / 3; }
  .ptt-button-core { gap: 6px; font-size: .57rem; }
  .ptt-button svg { width: 22px; }
}

@media (max-width: 420px) {
  .product-name { display: none; }
  .connection-state { width: 8px; overflow: hidden; gap: 0; font-size: 0; }
  .roster-button-label { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; transition-duration: .01ms !important; }
}