:root {
  --bg: #07111f;
  --bg2: #0d1b31;
  --card: rgba(255,255,255,.075);
  --card2: rgba(255,255,255,.11);
  --border: rgba(255,255,255,.14);
  --text: #edf5ff;
  --muted: #a9b8cc;
  --accent: #33c2ff;
  --accent2: #f8c65c;
  --danger: #ff6174;
  --ok: #4ee6a6;
  --shadow: 0 22px 80px rgba(0,0,0,.34);
  --radius: 22px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html, body { min-height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(51,194,255,.28), transparent 36rem),
    radial-gradient(circle at bottom right, rgba(248,198,92,.18), transparent 32rem),
    linear-gradient(135deg, var(--bg), var(--bg2));
}
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
code { color: var(--accent2); }
.hero-shell, .auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 28px;
}
.hero-card, .auth-card, .panel, .stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  border-radius: var(--radius);
}
.hero-card { width: min(1060px, 100%); padding: clamp(28px, 5vw, 56px); }
.auth-card { width: min(460px, 100%); padding: 36px; text-align: center; }
.brand-row { display: flex; gap: 18px; align-items: center; margin-bottom: 24px; }
.logo-mark {
  width: 66px; height: 66px; border-radius: 20px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, #33c2ff, #0d65ff 55%, #f8c65c);
  color: white; font-weight: 900; letter-spacing: -1px;
  box-shadow: 0 12px 36px rgba(51,194,255,.3);
}
.logo-mark.large { width: 82px; height: 82px; margin: 0 auto 16px; font-size: 24px; }
.eyebrow { color: var(--accent2); text-transform: uppercase; letter-spacing: .16em; font-size: 12px; font-weight: 800; margin: 0 0 8px; }
h1, h2 { margin: 0; line-height: 1.02; }
h1 { font-size: clamp(32px, 5vw, 64px); letter-spacing: -.05em; }
h2 { font-size: 24px; letter-spacing: -.02em; }
.lead { font-size: clamp(18px, 2.2vw, 25px); color: var(--muted); max-width: 760px; line-height: 1.45; }
.muted { color: var(--muted); line-height: 1.55; }
.fineprint { color: var(--muted); font-size: 13px; }
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin: 30px 0; }
.feature-grid > div {
  border: 1px solid var(--border); background: rgba(255,255,255,.055); border-radius: 18px; padding: 18px;
}
.feature-grid strong { display: block; margin-bottom: 8px; }
.feature-grid span { color: var(--muted); font-size: 14px; line-height: 1.45; }
.action-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.btn {
  border: 1px solid var(--border);
  color: var(--text); background: rgba(255,255,255,.09);
  border-radius: 14px; padding: 12px 16px; cursor: pointer;
  transition: transform .15s ease, background .15s ease, opacity .15s ease;
  display: inline-flex; justify-content: center; align-items: center; gap: 8px;
}
.btn:hover { transform: translateY(-1px); background: rgba(255,255,255,.14); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn.primary { background: linear-gradient(135deg, #33c2ff, #0d65ff); border-color: rgba(51,194,255,.45); font-weight: 800; }
.btn.danger { background: rgba(255,97,116,.18); border-color: rgba(255,97,116,.45); color: #ffdce1; }
.btn.ghost { background: transparent; }
.btn.small { padding: 8px 12px; border-radius: 10px; font-size: 13px; }
.btn.full { width: 100%; }
.link-btn { background: transparent; border: 0; color: var(--muted); cursor: pointer; }
.topbar {
  height: 72px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; border-bottom: 1px solid var(--border);
  background: rgba(7,17,31,.72); backdrop-filter: blur(18px); position: sticky; top: 0; z-index: 10;
}
.mini-brand { display: inline-flex; align-items: center; gap: 12px; }
.mini-brand span {
  width: 42px; height: 42px; border-radius: 13px;
  display: grid; place-items: center; background: linear-gradient(135deg, #33c2ff, #0d65ff, #f8c65c); font-weight: 900;
}
.top-actions { display: flex; gap: 14px; align-items: center; color: var(--muted); }
.app-shell { width: min(1480px, calc(100% - 32px)); margin: 24px auto 60px; }
.two-col { display: grid; grid-template-columns: 1.2fr .8fr; gap: 18px; }
.support-layout { display: grid; grid-template-columns: 330px 1fr 360px; gap: 18px; align-items: start; }
.admin-shell { display: grid; gap: 18px; }
.panel { padding: 24px; }
.hero-panel h1 { font-size: clamp(32px, 4vw, 52px); }
.stack-form { display: grid; gap: 14px; margin: 18px 0; text-align: left; }
.stack-form.compact { max-width: 520px; }
label { display: grid; gap: 8px; color: var(--muted); font-weight: 700; font-size: 14px; }
input, select {
  width: 100%; border: 1px solid var(--border); background: rgba(0,0,0,.2); color: var(--text);
  border-radius: 13px; padding: 13px 14px; outline: none;
}
input:focus, select:focus { border-color: rgba(51,194,255,.72); box-shadow: 0 0 0 3px rgba(51,194,255,.12); }
.session-box {
  display: grid; grid-template-columns: 1fr 1fr auto; gap: 12px; align-items: center;
  margin: 22px 0; padding: 16px; border: 1px dashed rgba(51,194,255,.6); border-radius: 18px; background: rgba(51,194,255,.08);
}
.session-box span { color: var(--muted); display: block; font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
.session-box strong { display: block; font-size: 34px; letter-spacing: .16em; }
.status { margin-top: 14px; padding: 12px 14px; border-radius: 14px; background: rgba(255,255,255,.075); color: var(--muted); border: 1px solid var(--border); }
.status.ok { color: var(--ok); border-color: rgba(78,230,166,.3); background: rgba(78,230,166,.08); }
.status.bad { color: #ffdce1; border-color: rgba(255,97,116,.42); background: rgba(255,97,116,.1); }
.chat-log { height: 260px; overflow: auto; border: 1px solid var(--border); border-radius: 16px; padding: 14px; background: rgba(0,0,0,.18); }
.chat-log.tall { height: 520px; }
.chat-line { padding: 10px 0; border-bottom: 1px solid rgba(255,255,255,.07); color: var(--muted); line-height: 1.45; }
.chat-line strong { color: var(--text); }
.chat-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 12px; }
.notice { margin-top: 16px; color: var(--muted); font-size: 13px; line-height: 1.45; }
.viewer-panel video {
  width: 100%; min-height: 560px; max-height: calc(100vh - 210px); border-radius: 18px;
  background: #020611; border: 1px solid var(--border); object-fit: contain;
}
.viewer-head, .section-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.pill { display: inline-flex; align-items: center; padding: 7px 10px; border-radius: 999px; background: rgba(255,255,255,.1); border: 1px solid var(--border); color: var(--muted); font-size: 12px; font-weight: 800; }
.pill.ok { color: var(--ok); border-color: rgba(78,230,166,.3); background: rgba(78,230,166,.08); }
.pill.bad { color: #ffdce1; border-color: rgba(255,97,116,.35); background: rgba(255,97,116,.1); }
.stats-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }
.stat-card { padding: 18px; }
.stat-card span { color: var(--muted); display: block; margin-bottom: 8px; }
.stat-card strong { font-size: 32px; }
.inline-form { display: grid; grid-template-columns: 1fr 1.1fr 1fr 140px auto; gap: 10px; margin: 16px 0 22px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 13px 12px; border-bottom: 1px solid rgba(255,255,255,.09); white-space: nowrap; }
th { color: var(--accent2); font-size: 12px; text-transform: uppercase; letter-spacing: .12em; }
td { color: var(--muted); }
td strong { color: var(--text); }
.event-box { margin-top: 18px; border: 1px solid var(--border); border-radius: 18px; padding: 18px; background: rgba(0,0,0,.16); }
.event-list { display: grid; gap: 10px; max-height: 360px; overflow: auto; }
.event-line { padding: 12px; border-radius: 14px; background: rgba(255,255,255,.055); border: 1px solid rgba(255,255,255,.08); }
.event-line span { color: var(--muted); font-size: 12px; display: block; margin-bottom: 6px; }
.event-line strong { margin-right: 10px; color: var(--accent); }
.event-line em { color: var(--accent2); font-style: normal; font-size: 12px; }
.event-line p { margin: 8px 0 0; color: var(--muted); }
.hidden { display: none !important; }
@media (max-width: 1120px) {
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .two-col, .support-layout { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .inline-form { grid-template-columns: 1fr; }
  .viewer-panel video { min-height: 360px; }
}
@media (max-width: 620px) {
  .topbar { height: auto; padding: 14px; gap: 10px; flex-wrap: wrap; }
  .hero-shell, .auth-shell { padding: 16px; }
  .hero-card, .auth-card, .panel { padding: 20px; border-radius: 18px; }
  .feature-grid, .stats-grid { grid-template-columns: 1fr; }
  .session-box { grid-template-columns: 1fr; }
  .session-box strong { font-size: 28px; }
  .chat-form { grid-template-columns: 1fr; }
}

/* V1.2 additions */
.two-col.wide-left { grid-template-columns: 1fr 440px; }
.side-stack { display: grid; gap: 18px; align-content: start; }
.support-layout.v12 { grid-template-columns: 340px 1fr 380px; }
.compact-head { margin-bottom: 8px; }
.divider { height: 1px; background: rgba(255,255,255,.1); margin: 20px 0; }
.action-grid { display: grid; grid-template-columns: 1fr; gap: 10px; margin: 12px 0; }
.viewer-wrap { position: relative; border-radius: 18px; overflow: hidden; }
.viewer-wrap video { display: block; }
.control-overlay {
  position: absolute; left: 14px; right: 14px; bottom: 14px;
  border: 1px solid rgba(78,230,166,.35); background: rgba(9,22,39,.84); color: var(--ok);
  padding: 10px 12px; border-radius: 14px; font-size: 13px; font-weight: 800;
  pointer-events: none; backdrop-filter: blur(12px);
}
.viewer-tools { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 14px; }
.checkbox-line { display: flex; align-items: center; gap: 9px; margin-top: 10px; color: var(--muted); line-height: 1.35; }
.checkbox-line input { width: auto; }
.file-form { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 12px; }
.file-log { display: grid; gap: 8px; margin-top: 12px; max-height: 220px; overflow: auto; }
.file-line {
  display: grid; grid-template-columns: auto 1fr auto; gap: 8px; align-items: center;
  padding: 10px; border: 1px solid rgba(255,255,255,.09); border-radius: 12px; background: rgba(255,255,255,.055);
  color: var(--muted); font-size: 13px;
}
.file-line a { color: var(--accent); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-line strong { color: var(--text); white-space: nowrap; }
.file-line span { color: var(--muted); font-size: 12px; white-space: nowrap; }
.chat-log.medium { height: 300px; }
.desktop-mode { border-left: 3px solid rgba(51,194,255,.55); padding-left: 12px; }
@media (max-width: 1280px) {
  .support-layout.v12 { grid-template-columns: 1fr; }
  .two-col.wide-left { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .file-form { grid-template-columns: 1fr; }
  .file-line { grid-template-columns: 1fr; }
}