:root {
  --bg: #05070a;
  --panel: rgba(12, 18, 24, .9);
  --panel-2: rgba(18, 27, 35, .92);
  --line: rgba(146, 191, 181, .22);
  --text: #f4f7f4;
  --muted: #a7b5b1;
  --green: #32d583;
  --blue: #63b3ed;
  --amber: #f4c15d;
  --red: #ff6b6b;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    linear-gradient(rgba(99, 179, 237, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 179, 237, .045) 1px, transparent 1px),
    linear-gradient(145deg, #05070a, #101514 58%, #07090c);
  background-size: 34px 34px, 34px 34px, auto;
}

button, input {
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
}

button {
  cursor: pointer;
  background: #1f7a4d;
  font-weight: 800;
  padding: 12px 14px;
}

input {
  width: 100%;
  background: rgba(255, 255, 255, .05);
  padding: 12px;
}

.shell {
  width: min(1420px, calc(100vw - 28px));
  margin: 0 auto;
  padding: 18px 0 36px;
}

.topbar,
.briefing,
.session-tools,
.panel,
.status-grid article {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: 0 18px 70px rgba(0, 0, 0, .3);
}

.session-tools {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(150px, .4fr) minmax(150px, .35fr) auto;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  border-radius: 8px;
  padding: 14px 16px;
}

.session-tools[hidden] {
  display: none;
}

.session-tools span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.session-tools strong {
  display: block;
  margin-top: 6px;
  overflow-wrap: anywhere;
}

.topbar {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  border-radius: 8px;
}

.topbar strong {
  display: block;
  text-transform: uppercase;
  letter-spacing: .06em;
}

.topbar span,
.topbar small,
.kicker {
  color: var(--muted);
}

.env {
  text-align: right;
}

.env span {
  color: var(--green);
  font-weight: 900;
}

.briefing {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  margin-top: 14px;
  padding: clamp(22px, 4vw, 46px);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(36, 68, 58, .86), rgba(8, 12, 17, .94)),
    var(--panel);
}

.kicker {
  margin: 0 0 8px;
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }
h1 {
  margin-bottom: 12px;
  font-size: clamp(44px, 7vw, 88px);
  line-height: .92;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 0;
  font-size: 22px;
}

.briefing p {
  max-width: 720px;
  color: #c9d7d0;
  font-size: 18px;
  line-height: 1.6;
}

.session-form {
  display: grid;
  gap: 12px;
  align-self: end;
}

.form-actions,
.lobby-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.form-actions button,
.lobby-actions button {
  flex: 1 1 150px;
}

.lobby-panel {
  margin-top: 14px;
  min-height: 180px;
}

.lobby-players {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.lobby-players li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 68px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 12px 14px;
}

.lobby-players span {
  overflow-wrap: anywhere;
  font-weight: 800;
}

.lobby-players strong {
  color: var(--amber);
  font-size: 12px;
  text-transform: uppercase;
}

.lobby-players .ready strong {
  color: var(--green);
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.status-grid article {
  min-height: 92px;
  border-radius: 8px;
  padding: 16px;
}

.status-grid span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.status-grid strong {
  display: block;
  margin-top: 12px;
  overflow-wrap: anywhere;
  font-size: 20px;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: 14px;
  margin-top: 14px;
}

.panel {
  min-height: 280px;
  border-radius: 8px;
  padding: 18px;
}

.panel-head,
.device-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 16px;
}

code {
  border: 1px solid rgba(244, 193, 93, .28);
  border-radius: 8px;
  color: #ffe0a1;
  background: rgba(244, 193, 93, .08);
  padding: 8px 10px;
}

.evidence-board {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.evidence {
  min-height: 185px;
  display: grid;
  align-content: space-between;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
  background: var(--panel-2);
}

.evidence.locked {
  border-color: rgba(255, 107, 107, .28);
  color: #b9c2bf;
}

.evidence span,
.evidence small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.evidence strong {
  display: block;
  margin-top: 7px;
  font-size: 18px;
}

.evidence p,
.timeline p,
.messages p,
.feedback {
  color: var(--muted);
  line-height: 1.55;
}

.evidence button {
  justify-self: start;
  margin: 10px 0;
  background: #244c7a;
}

#scan-form {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.timeline {
  display: grid;
  gap: 12px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.timeline li,
.messages article {
  border-left: 3px solid var(--green);
  background: rgba(255, 255, 255, .035);
  padding: 12px 14px;
}

.timeline span,
.messages span {
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
}

.timeline strong {
  display: block;
  margin-top: 4px;
}

.messages {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.device-panel {
  background: linear-gradient(180deg, rgba(16, 26, 34, .96), rgba(7, 10, 14, .96));
}

.device-head > span {
  color: var(--green);
  font-weight: 900;
}

.device-tabs {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 6px;
}

.device-tabs button {
  min-height: 38px;
  padding: 8px 6px;
  background: rgba(255, 255, 255, .05);
  color: var(--muted);
  font-size: 12px;
}

.device-tabs button.active {
  border-color: rgba(50, 213, 131, .55);
  background: rgba(50, 213, 131, .16);
  color: var(--text);
}

.device-content {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.device-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, .035);
  padding: 12px 14px;
}

.device-item.locked {
  border-color: rgba(255, 107, 107, .28);
}

.device-item.available {
  border-color: rgba(50, 213, 131, .32);
}

.device-item strong,
.device-item span {
  display: block;
}

.device-item span {
  margin-top: 4px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

@media (max-width: 980px) {
  .briefing,
  .workspace,
  .session-tools,
  .status-grid,
  .evidence-board,
  .lobby-players,
  .device-tabs {
    grid-template-columns: 1fr;
  }

  .env {
    text-align: left;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }
}