*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  height: 100%;
}

.fullscreen {
  position: relative;
  width: 100%;
  height: 100vh;
  overflow: hidden;
}

.fullscreen__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.fullscreen__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 1.5rem;
}

.fullscreen__title {
  font-family: 'Segoe UI', Arial, sans-serif;
  font-size: clamp(2.5rem, 8vw, 6rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
  text-transform: uppercase;
}

.fullscreen__subtitle {
  margin-top: 1rem;
  font-family: 'Segoe UI', Arial, sans-serif;
  font-size: clamp(1rem, 2.5vw, 1.5rem);
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: 0.04em;
}

.fullscreen__notify {
  margin-top: 2.5rem;
  display: flex;
  gap: 0;
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.fullscreen__notify-input {
  flex: 1;
  min-width: 0;
  padding: 0.75rem 1.25rem;
  font-size: 1rem;
  border: none;
  outline: none;
  background: rgba(255, 255, 255, 0.95);
  color: #222;
}

.fullscreen__notify-btn {
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  background: #e85d04;
  color: #fff;
  border: none;
  cursor: pointer;
  transition: background 0.2s;
}

.fullscreen__notify-btn:hover {
  background: #c44b00;
}

.fullscreen__message {
  margin-top: 1rem;
  font-family: 'Segoe UI', Arial, sans-serif;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  min-height: 1.4em;
}