body {
  margin: 0;
  min-height: 100vh;
  background: #0f172a;
  color: white;
  font-family: Arial, sans-serif;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 28px;
  background: #020617;
}

.topbar a {
  color: white;
  text-decoration: none;
}

.container {
  min-height: calc(100vh - 70px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 70px;
}

h1 {
  font-size: 48px;
  margin: 0 0 18px;
}

.en {
  opacity: 0.75;
  direction: ltr;
  margin-bottom: 45px;
}

/* 4 комнаты */
.rooms-grid {
  display: grid;
  grid-template-columns: repeat(2, 280px);
  gap: 30px;
  justify-content: center;
  margin-top: 20px;
}

.room-button {
  width: 280px;
  height: 220px;
  background: #1e293b;
  color: white;
  text-decoration: none;
  border-radius: 24px;
  border: 1px solid #334155;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: 0.2s;
  font-size: 32px;
  font-weight: bold;
}

.room-button span {
  display: block;
  font-size: 18px;
  opacity: 0.75;
  margin-top: 12px;
  direction: ltr;
}

.room-button:hover {
  transform: scale(1.04);
  background: #334155;
}

/* Страница программ */
.programs {
  display: flex;
  flex-direction: row;
  gap: 24px;
  justify-content: center;
  align-items: center;
  margin-top: 80px;
}

.program-button {
  background: #1e293b;
  color: white;
  text-decoration: none;
  padding: 28px 36px;
  border-radius: 20px;
  min-width: 180px;
  border: 1px solid #334155;
  font-size: 24px;
  font-weight: bold;
  text-align: center;
  transition: 0.2s;
}

.program-button span {
  display: block;
  font-size: 16px;
  opacity: 0.7;
  margin-top: 8px;
  direction: ltr;
}

.program-button:hover {
  transform: scale(1.04);
  background: #334155;
}

.login-box {
  background: #1e293b;
  padding: 36px;
  border-radius: 22px;
  min-width: 360px;
}

input {
  padding: 12px;
  font-size: 18px;
  border-radius: 8px;
  border: none;
  margin: 12px 0;
}

button, .btn {
  background: #2563eb;
  color: white;
  border: none;
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 18px;
  cursor: pointer;
  text-decoration: none;
}

.locked {
  opacity: 0.4;
  pointer-events: none;
}

@media (max-width: 700px) {
  .rooms-grid {
    grid-template-columns: 1fr;
  }

  .room-button {
    width: 85vw;
  }

  .programs {
    flex-direction: column;
  }
}