* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  background: #0b1220;
  color: #e5e7eb;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  padding: 24px 5vw 16px;
  background: #0f172a;
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.brand h1 {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
}

.brand p {
  margin: 6px 0 0;
  opacity: 0.8;
}

.room-status {
  background: rgba(255, 255, 255, 0.1);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.95rem;
  display: flex;
  gap: 8px;
  align-items: center;
}

.sep {
  opacity: 0.5;
}

.layout {
  padding: 20px 5vw 24px;
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(280px, 1fr);
  gap: 20px;
  align-items: start;
}

.entry {
  padding: 24px 5vw;
}

.panel {
  background: #111827;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 16px 32px rgba(2, 6, 23, 0.45);
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel h2 {
  margin: 0;
  font-size: 1.1rem;
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}

.entry-card {
  background: #0b1220;
  border: 1px solid #1f2937;
  border-radius: 14px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.entry-card h3 {
  margin: 0;
  font-size: 1rem;
}

.entry-card p {
  margin: 0;
  color: #94a3b8;
  font-size: 0.9rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form.inline {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
}

label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
}

input {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid #1f2937;
  font-size: 0.95rem;
  background: #0b1220;
  color: #e5e7eb;
}

button {
  padding: 10px 16px;
  border: none;
  border-radius: 10px;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
  font-size: 0.95rem;
}

button:hover {
  background: #1d4ed8;
}

.video-status {
  font-size: 0.85rem;
  color: #cbd5f5;
  background: #0b1220;
  border: 1px solid #1f2937;
  padding: 8px 12px;
  border-radius: 10px;
}

video {
  width: 100%;
  border-radius: 12px;
  background: #020617;
  aspect-ratio: 16 / 9;
}

.video-hint {
  font-size: 0.88rem;
  color: #94a3b8;
}

.side-column {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.member-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px;
  border-radius: 12px;
  background: #0b1220;
  border: 1px solid #1f2937;
  min-height: 120px;
}

.member-item {
  font-size: 0.9rem;
}

.chat-list {
  min-height: 240px;
  max-height: 360px;
  overflow-y: auto;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: #0b1220;
}

.chat-row {
  display: flex;
  align-items: baseline;
  gap: 6px;
  font-size: 0.9rem;
}

.chat-row.system {
  color: #94a3b8;
}

.chat-name {
  font-weight: 600;
  color: #e2e8f0;
}

.chat-time {
  margin-left: auto;
  font-size: 0.75rem;
  color: #64748b;
}

.emoji-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.emoji-btn {
  background: #111827;
  color: #e5e7eb;
  border: 1px solid #1f2937;
  font-size: 1.1rem;
}

.emoji-btn:hover {
  background: #1f2937;
}

.disclaimer {
  padding: 16px 5vw 0;
}

.disclaimer h2 {
  margin: 0 0 8px;
  font-size: 1rem;
}

.disclaimer p {
  margin: 0;
  color: #94a3b8;
  line-height: 1.6;
}

.footer {
  margin-top: auto;
  padding: 24px 5vw 32px;
  text-align: center;
  font-size: 0.9rem;
  color: #64748b;
}

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
  }
}