:root {
  color-scheme: dark;
  --bg: #020504;
  --panel: rgba(3, 18, 14, .88);
  --line: rgba(73, 255, 165, .22);
  --green: #41ff9f;
  --cyan: #49c7ff;
  --text: #e8fff5;
  --muted: #9fb9b0;
  --danger: #ff5c7a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 70% 20%, rgba(28, 116, 255, .15), transparent 30%), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, Segoe UI, Arial, sans-serif;
  overflow-x: hidden;
}

#matrix {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .56;
  z-index: 0;
}

.shell, .admin-shell { position: relative; z-index: 1; min-height: 100vh; }
.landing {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.lock-stage {
  width: min(720px, 100%);
  text-align: center;
  animation: rise .9s ease both;
}
.brand-chatter {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding: 8px 14px 8px 8px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(0, 0, 0, .36);
}
.brand-chatter img {
  width: 54px;
  height: 54px;
  border-radius: 50%;
  object-fit: cover;
}
.brand-chatter span {
  position: relative;
  display: inline-block;
  padding: 8px 13px;
  border-radius: 18px;
  background: var(--green);
  color: #00130c;
  font-weight: 900;
  text-transform: lowercase;
}
.brand-chatter span:before {
  content: "";
  position: absolute;
  left: -6px;
  bottom: 7px;
  width: 12px;
  height: 12px;
  background: var(--green);
  transform: rotate(45deg);
}
.secure-folder {
  position: relative;
  width: 220px;
  height: 150px;
  margin: 0 auto 28px;
  border: 2px solid var(--green);
  border-radius: 8px;
  box-shadow: 0 0 28px rgba(65, 255, 159, .42), inset 0 0 30px rgba(65, 255, 159, .08);
  animation: pulse 2.4s infinite;
}
.folder-tab {
  position: absolute;
  left: 18px;
  top: -32px;
  width: 96px;
  height: 32px;
  border: 2px solid var(--green);
  border-bottom: 0;
  border-radius: 8px 8px 0 0;
}
.folder-lock {
  position: absolute;
  inset: 48px 82px 36px;
  border: 2px solid var(--cyan);
  border-radius: 8px;
}
.folder-lock:before {
  content: "";
  position: absolute;
  left: 12px;
  top: -30px;
  width: 32px;
  height: 32px;
  border: 2px solid var(--cyan);
  border-bottom: 0;
  border-radius: 24px 24px 0 0;
}
.signal { color: var(--green); text-transform: uppercase; letter-spacing: 3px; }
h1 { font-size: clamp(40px, 8vw, 82px); margin: 10px 0 28px; letter-spacing: 0; }
h2 { margin: 8px 0 16px; }
button, input, select {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(2, 10, 8, .86);
  color: var(--text);
  padding: 10px 14px;
}
button { cursor: pointer; font-weight: 800; }
.primary {
  background: linear-gradient(135deg, var(--green), var(--cyan));
  color: #00130c;
  border: 0;
  box-shadow: 0 10px 34px rgba(65, 255, 159, .25);
}
.ghost { background: transparent; color: var(--green); }
.hidden { display: none !important; }
dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  width: min(480px, calc(100% - 24px));
  box-shadow: 0 0 80px rgba(65, 255, 159, .18);
}
dialog::backdrop { background: rgba(0, 0, 0, .72); }
.modal { display: grid; gap: 12px; }
.check { display: flex; gap: 10px; text-align: left; color: var(--muted); font-size: 14px; }
.check input { min-height: auto; }
.join-choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.join-choice label {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.join-choice input { min-height: auto; }
.identity-fields { display: grid; gap: 10px; }
.padlock, .shield {
  width: 74px;
  height: 74px;
  margin: 0 auto 8px;
  border: 2px solid var(--green);
  border-radius: 18px;
  display: grid;
  place-items: center;
  box-shadow: 0 0 24px rgba(65,255,159,.3);
}
.padlock:before { content: "⌁"; color: var(--cyan); font-size: 34px; }
.shield { border-radius: 50%; color: var(--green); font-size: 38px; }
.success { text-align: center; }
.hub, .admin-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
.sidebar {
  border-right: 1px solid var(--line);
  background: rgba(1, 8, 7, .84);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.sidebar strong { color: var(--green); margin-bottom: 14px; }
.sidebar span, .nav { text-align: left; color: var(--muted); }
.nav.active { color: var(--green); border-color: var(--green); }
.workspace { padding: 20px; min-width: 0; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; }
.online { color: var(--green); border: 1px solid var(--line); padding: 6px 10px; border-radius: 999px; }
.panel, .stats article, .table, .admin-login {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 16px;
}
.messages { height: calc(100vh - 170px); overflow: auto; display: flex; flex-direction: column; gap: 10px; }
.message { max-width: 760px; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: rgba(0,0,0,.22); }
.message small, .muted { color: var(--muted); }
.composer, .upload { display: grid; grid-template-columns: 220px 1fr auto; gap: 10px; margin-top: 12px; }
.stacked { display: grid; gap: 10px; }
.safety-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
.danger { background: var(--danger); color: #fff; border-color: transparent; }
.people { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 12px; }
.person, .row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
  background: rgba(0, 0, 0, .24);
}
.actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.actions button { min-height: 34px; padding: 6px 9px; }
.toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #041d14;
  border: 1px solid var(--green);
  border-radius: 8px;
  padding: 14px;
  z-index: 4;
}
.portal-orb {
  width: 108px;
  height: 108px;
  margin: 0 auto 12px;
  border-radius: 50%;
  border: 2px solid var(--green);
  background: conic-gradient(from 90deg, var(--green), var(--cyan), transparent, var(--green));
  box-shadow: 0 0 42px rgba(65, 255, 159, .42);
  animation: spinPortal 1.2s linear infinite;
}
.install-prompt {
  position: fixed;
  left: 18px;
  bottom: 18px;
  z-index: 5;
  background: var(--green);
  color: #00130c;
  border: 0;
}
.stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 20px; }
.stats strong { display: block; color: var(--green); font-size: 34px; }
.table { display: grid; gap: 8px; margin-bottom: 22px; overflow: auto; }
.row { display: grid; grid-template-columns: repeat(4, minmax(140px, 1fr)); gap: 8px; align-items: center; }
.row button { min-height: 34px; }

@keyframes pulse {
  0%, 100% { transform: scale(1); filter: brightness(1); }
  50% { transform: scale(1.04); filter: brightness(1.28); }
}
@keyframes rise {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes spinPortal {
  to { transform: rotate(360deg) scale(1.04); }
}

@media (max-width: 780px) {
  .hub, .admin-shell { grid-template-columns: 1fr; }
  .sidebar { position: static; border-right: 0; border-bottom: 1px solid var(--line); }
  .composer, .upload { grid-template-columns: 1fr; }
  .safety-grid { grid-template-columns: 1fr; }
  .messages { height: 55vh; }
  .stats { grid-template-columns: 1fr; }
  .row { grid-template-columns: 1fr; }
}