* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background: #020711;
  color: #f4f6ff;
}

.bar {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding: 1rem clamp(1rem, 6vw, 3rem);
  background: rgba(5, 9, 20, 0.95);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.bar h1 {
  margin: 0;
  font-size: 1.4rem;
}

.actions {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.bar button,
.bar .logout {
  border-radius: 999px;
  border: none;
  padding: 0.55rem 1.2rem;
  font-weight: 600;
  cursor: pointer;
}

.bar button {
  background: linear-gradient(120deg, #8b5cf6, #ec4899);
  color: #050505;
}

.bar button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.bar .logout {
  background: rgba(255, 255, 255, 0.08);
  color: #f4f6ff;
  text-decoration: none;
}

.chat {
  min-height: calc(100vh - 120px);
  padding: clamp(1rem, 5vw, 3rem);
  display: flex;
  flex-direction: column;
}

.messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  padding-bottom: 1rem;
}

.messages article {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 0.8rem 1rem;
}

.messages small {
  display: block;
  color: #94a3c6;
  font-size: 0.75rem;
}

.composer {
  display: flex;
  gap: 0.8rem;
}

.composer input {
  flex: 1;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.3);
  color: #f4f6ff;
  padding: 0.9rem 1rem;
}

.composer button {
  border: none;
  border-radius: 16px;
  background: linear-gradient(135deg, #10b981, #14b8a6);
  color: #031b2b;
  font-weight: 700;
  padding: 0 1.3rem;
  cursor: pointer;
}

.centered {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #040714;
}

.auth {
  width: min(360px, 90%);
  background: rgba(7, 10, 22, 0.9);
  border-radius: 24px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.07);
  text-align: center;
}

.auth label {
  display: block;
  text-align: left;
  margin-top: 1rem;
}

.auth input {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.8rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  color: #f4f6ff;
}

.auth button {
  width: 100%;
  margin-top: 1.4rem;
  border-radius: 16px;
  border: none;
  padding: 0.9rem;
  font-weight: 700;
  background: #3b82f6;
  color: #04111f;
  cursor: pointer;
}

.error {
  color: #f87171;
}

dialog {
  border: none;
  border-radius: 20px;
  background: #020814;
  color: #f4f6ff;
  padding: 1.5rem;
  width: min(420px, 90%);
}

dialog::backdrop {
  background: rgba(0, 0, 0, 0.6);
}

dialog button {
  margin-top: 1rem;
  width: 100%;
  border: none;
  padding: 0.7rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.1);
  color: #f4f6ff;
  cursor: pointer;
}

.dialog-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.invite-link {
  word-break: break-all;
  font-family: "JetBrains Mono", "Fira Mono", monospace;
  background: rgba(255, 255, 255, 0.06);
  padding: 0.7rem;
  border-radius: 12px;
}

.profile {
  padding: 0 clamp(1rem, 6vw, 3rem) 2rem;
}

.profile .card {
  background: rgba(5, 9, 20, 0.9);
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: clamp(1rem, 4vw, 2rem);
}

.profile form {
  margin-top: 1rem;
}

.profile input {
  width: 100%;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 0.8rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  color: #f4f6ff;
}

.profile button {
  margin-top: 0.8rem;
  width: 100%;
  border: none;
  border-radius: 16px;
  padding: 0.8rem;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #050505;
  font-weight: 600;
  cursor: pointer;
}

.profile .status {
  min-height: 1.4rem;
  font-size: 0.9rem;
  color: #cbd5f5;
}

@media (max-width: 600px) {
  .composer {
    flex-direction: column;
  }
  .composer button {
    width: 100%;
    padding: 0.9rem;
  }
}