:root {
  color-scheme: dark;
  --bg: #030303;
  --panel: rgba(12, 12, 12, 0.82);
  --panel-2: rgba(28, 28, 28, 0.88);
  --text: #f6f7f2;
  --muted: #b8b8b8;
  --accent: #f4f4f4;
  --danger: #ff5b5b;
  --line: rgba(255, 255, 255, 0.18);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100svh;
  background: #030303;
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 14%, rgba(255, 255, 255, 0.12), transparent 24%),
    radial-gradient(circle at 78% 22%, rgba(255, 255, 255, 0.07), transparent 28%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.08), rgba(0, 0, 0, 0.76));
}

.matrix-backdrop {
  position: fixed;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  background: #030303;
  pointer-events: none;
}

button,
input {
  font: inherit;
}

button {
  min-height: 44px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #050505;
  font-weight: 800;
  padding: 0 16px;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.12);
}

button.secondary {
  background: var(--panel-2);
  color: var(--text);
}

input {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(2, 2, 2, 0.76);
  color: var(--text);
  padding: 0 12px;
}

.app {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.panel {
  width: min(460px, 100%);
  margin: 8vh auto 0;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.72), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 24px;
  font-size: 38px;
}

.join-form,
.message-form,
.actions {
  display: grid;
  gap: 12px;
}

.join-form label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 14px;
}

.hidden {
  display: none !important;
}

.call {
  min-height: calc(100svh - 32px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  grid-template-rows: auto 1fr;
  gap: 16px;
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.28);
  border-radius: 8px;
  padding: 12px;
  backdrop-filter: blur(10px);
}

.topbar span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 13px;
}

.actions {
  grid-auto-flow: column;
}

.video-grid {
  min-width: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-content: start;
  gap: 12px;
}

.remote-videos {
  display: contents;
}

.video-tile {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.82);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.48);
}

.video-tile video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-tile span {
  position: absolute;
  left: 10px;
  bottom: 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.5);
  padding: 5px 9px;
  font-size: 12px;
}

.chat {
  min-height: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 12px;
  border-left: 1px solid var(--line);
  padding-left: 16px;
  background: rgba(0, 0, 0, 0.24);
  border-radius: 8px;
  padding: 12px 0 12px 16px;
  backdrop-filter: blur(8px);
}

.messages {
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message {
  max-width: 92%;
  border-radius: 8px;
  background: var(--panel-2);
  padding: 10px 12px;
  overflow-wrap: anywhere;
}

.message.mine {
  align-self: flex-end;
  background: rgba(245, 245, 245, 0.18);
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.message small {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
}

.message-form {
  grid-template-columns: minmax(0, 1fr) auto;
}

.legal-footer {
  margin-top: auto;
  padding-top: 18px;
  color: rgba(255, 255, 255, 0.56);
  font-size: 12px;
  line-height: 1.4;
  text-align: center;
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.9);
}

@media (max-width: 820px) {
  .call {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto minmax(280px, 1fr);
  }

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

  .actions {
    width: 100%;
    grid-template-columns: repeat(3, 1fr);
    grid-auto-flow: initial;
  }

  .chat {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--line);
    padding-top: 12px;
  }

  .legal-footer {
    padding-top: 14px;
    font-size: 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .matrix-backdrop {
    opacity: 0.48;
  }
}